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LENTZ AVENUESTREAM AND WETLAND MITIGATION PROJECT

CLARK COUNTY, INDIANA

SOURCE: USGS 7.5-MINUTE TOPOGRAPHIC MAP - JEFFERSONVILLE ANDCHARLESTOWN, INDIANA QUADRANGLES

SOURCE: AERIAL PHOTO - PROVIDED BY RIVER RIDGE DEVELOPMENT AUTHORITY.

0

SCALE IN FEET

0

SCALE IN FEET

1206012010005001000

OWNER:

RIVER RIDGE DEVELOPMENT AUTHORITYMR. TOM VITTITOWPLANNING AND DEVELOPMENT MANAGER6200 EAST HIGHWAY 62BUILDING 2501, SUITE 600JEFFERSONVILLE, INDIANA 47130PHONE: 812-285-8979E-MAIL: TOM@RIVERRIDGECC.COM

STREAM MITIGATION AREA

WETLAND MITIGATION AREA

FORMER FIFTH

STREET

PROPOSED INTERMITTENT STREAM 1RE-ESTABLISHMENT REACH

EXISTINGREHABILITATEDINTERMITTENTSTREAM 1

CP4NORTHING: 1135984.15'EASTING: 324100.25'ELEVATION: 497.58'

491

491

491

490

490

490

489

491

491

490

491

492492

490

491

491

492

491

489

493494495

490

491

EXISTING BOULDER STOCKPILE

PROPOSED EARTHENBERM

PROPOSEDVEGETATED OUTLET

496.5

499498497

498

499

500

499

CP5NORTHING: 1136294.93'EASTING: 324158.84'ELEVATION: 503.08'

FORMER FIFTH STREET

EXISTINGWETLAND(DO NOTDISTURB)

497

497

496.5

496.5

497

496.5

497

497498

500

505

497

498

499

501

502

503

504

500

505

499

499

499

499

501

502503

504

498

499

PROPOSED WETLANDESTABLISHMENT AREA

SIT

E P

LAN

AN

D G

EN

ER

AL

NO

TES

APPROXIMATE LIMITS OF DISTURBANCE (1.31 ACRES)APPROXIMATE PROJECT BOUNDARY

EXISTING INTERMITTENT STREAM (TO BE RE-ESTABLISHED)

PROPOSED INTERMITTENT STREAMBANKS

PROPOSED INTERMITTENT THALWEG

0

SCALE IN FEET

GENERAL NOTES:

1. THE PROPOSED STREAM AND WETLAND MITIGATION PROJECT WILL INVOLVE THE RE-ESTABLISHMENT OF APPROXIMATELY 252 LINEAR FEET OF DEGRADED INTERMITTENT STREAM AND THE ESTABLISHMENT OF 0.28 ACRE OF EMERGENT WETLAND.

2. ELEVATIONS ON THE PLAN SET ARE BASED ON A SITE TOPOGRAPHIC SURVEY IN NAVD88 US FEET. ELEVATIONS OUTSIDE THE PROJECT BOUNDARIES ARE DERIVED FROM A STATEWIDE LiDAR SURVEY AND ARE PROVIDED FOR REFERENCE ONLY. RIVERRIDGE DEVELOPMENT AUTHORITY (RIVER RIDGE) WILL PROVIDE THE SURVEY DATA AND CONSTRUCTION PLANS TO THE CHOSEN CONTRACTOR PRIOR TO CONSTRUCTION TO BE USED FOR CONSTRUCTION STAKING.

3. THE EROSION PREVENTION AND SEDIMENT CONTROL (EPSC) PLAN (SHEET 11) AND STORMWATER POLLUTION PREVENTION PLAN (SWPPP) (SHEET 12) SHALL BE IMPLEMENTED PRIOR TO ANY LAND DISTURBING ACTIVITY ON THE PROJECT SITES.

4. ACCESS TO THE SITES WILL BE OBTAINED VIA A STABILIZED CONSTRUCTION ENTRANCE AS SHOWN ON THE EPSC PLAN (SHEET 11). ALL HAULING AND CONSTRUCTION TRAFFIC SHOULD BE LIMITED TO THE SPECIFIED CONSTRUCTION HAUL ROUTES UNLESSOTHERWISE APPROVED BY A RIVER RIDGE REPRESENTATIVE. CONTRACTOR IS RESPONSIBLE FOR ENSURING THE HAUL ROUTES ARE RESTORED AS IDENTIFIED IN CONSTRUCTION PLANS.

5. THE INSTALLATION AND MAINTENANCE OF EROSION CONTROLS SHALL BE IN ACCORDANCE WITH ALL APPLICABLE FEDERAL, STATE, AND LOCAL EROSION CONTROL REGULATIONS. THE CONTRACTOR IS RESPONSIBLE FOR KNOWING ALL PERTINENTREGULATIONS.

6. THE CONTRACTOR SHALL BE RESPONSIBLE FOR MINIMIZING THE TRACKING OF MUD AND SOIL FROM CONSTRUCTION AREAS ONTO THE SITE ACCESS ROAD AND ADJACENT PUBLIC ROADWAYS. SOIL TRACKED ONTO THE ADJACENT PUBLIC ROADWAY SHALLBE REMOVED DAILY. THE CONTRACTOR IS ALSO RESPONSIBLE FOR KEEPING DRAINAGE SYSTEMS FREE OF DIRT AND CONSTRUCTION DEBRIS.

7. ALL CONSTRUCTION EQUIPMENT AND VEHICLES SHALL BE MAINTAINED TO PREVENT OIL, FUEL, OR LUBRICANT FROM LEAKING INTO STREAMS, WETLANDS, DRAINAGE SYSTEMS, OR ON THE GROUND.

8. IT IS THE CONTRACTOR'S RESPONSIBILITY TO REPAIR ANY DAMAGED ITEMS THAT OCCUR DURING CONSTRUCTION ACTIVITIES, INCLUDING FENCING, ROADS, SIDEWALKS, ASPHALT TRAILS, CURBS, UTILITIES, ETC. AT NO COST TO THE CLIENT.

9. THE CONTRACTOR SHALL CONTACT THE UTILITY PROTECTION CENTER INDIANA 811 (TOLL FREE NO. 1-800-382-5544) A MINIMUM OF 48 HOURS PRIOR TO ANY CONSTRUCTION ACTIVITY ON THIS PROJECT.

10. THE CONTRACTOR WILL BE RESPONSIBLE FOR DAMAGE TO ANY UTILITY SERVICE LINE AT NO COST TO RIVER RIDGE.

11.PRIOR TO COMMENCING CONSTRUCTION, THE CONTRACTOR SHALL ENSURE ALL REQUIRED PERMITS AND APPROVALS HAVE BEEN OBTAINED AND ARE PROPERLY DISPLAYED AND/OR MADE READILY AVAILABLE AT THE CONSTRUCTION SITE.

12. THE CONTRACTOR SHALL MARK THE PROPOSED STREAM AND WETLAND MITIGATION ACTIVITIES IN THE FIELD FOR APPROVAL BY A RIVER RIDGE REPRESENTATIVE AND THE ENGINEER PRIOR TO COMMENCING ANY CONSTRUCTION ACTIVITIES.

13. THE CONTRACTOR IS RESPONSIBLE FOR ALL CLEARING AND GRUBBING ACTIVITIES REQUIRED TO IMPLEMENT THE PROPOSED STREAM AND WETLAND MITIGATION ACTIVITIES AS SHOWN ON THE PLANS. EXISTING TREES SHALL BE REMOVED ONLY ASINDICATED ON THE PLANS. THE CONTRACTOR SHALL NOT EXCEED THE LIMITS OF DISTURBANCE AS SHOWN ON THE PLANS AND SHALL MAKE EVERY EFFORT TO CLEAR THE MINIMUM AREA NEEDED TO CONDUCT THE STREAM AND WETLAND MITIGATIONACTIVITIES PER THE PLANS.

14.EXCAVATION AND DISPOSAL OF MATERIALS SHALL BE CONDUCTED IN ACCORDANCE WITH ALL FEDERAL, STATE AND LOCAL LAWS, CODES AND ENVIRONMENTAL REGULATIONS. EXCAVATED SOIL MATERIAL WILL BE UTILIZED TO ACHIEVE FINAL GRADESELSEWHERE WITHIN THE SITE. ONCE FINAL GRADES HAVE BEEN ACHIEVED, THE REMAINING SOIL MATERIAL SHALL BE SPREAD EVENLY WITHIN THE DESIGNATED AREA ON SITE TO A DEPTH OF APPROXIMATELY ONE FOOT AND STABILIZED PER THE PLANTINGPLAN (SHEET 10) AND EPSC PLAN (SHEET 11).

15. THE CONTRACTOR WILL BE SOLELY RESPONSIBLE FOR THE CONDITIONS OF THE JOB SITE, INCLUDING SAFETY OF ALL PERSONS AND PROPERTY DURING CONSTRUCTION.

16. CONTRACTOR SHALL INSTALL AND MAINTAIN BARRIERS OR OTHER PROTECTION MEASURES TO PREVENT VEHICULAR AND PEDESTRIAN TRAFFIC FROM ENTERING THE CONSTRUCTION AREAS.

17. THE CONTRACTOR MUST NOTIFY A RIVER RIDGE REPRESENTATIVE AND THE ENGINEER A MINIMUM OF 48 HOURS PRIOR TO CONSTRUCTION OF ANY BOULDER/IN-STREAM STRUCTURES. THE CONTRACTOR SHALL MARK THE LOCATIONS OF ANY PROPOSEDSTRUCTURES IN THE FIELD FOR APPROVAL BY THE ENGINEER PRIOR TO INITIATING CONSTRUCTION OF THE STRUCTURE. DEPENDING ON SPECIFIC SITE CONDITIONS, SOME MODIFICATION TO THE STRUCTURES MAY BE REQUIRED, WHICH MUST BEAPPROVED BY THE ENGINEER AND A RIVER RIDGE REPRESENTATIVE.

18. AREAS USED FOR CONSTRUCTION STAGING AND ACCESS SHALL BE RETURNED TO ORIGINAL CONDITIONS UPON COMPLETION OF CONSTRUCTION ACTIVITIES.

19. THE CONTRACTOR SHALL CONSTRUCT THE PROPOSED STREAM AND WETLAND MITIGATION ACTIVITIES IN ACCORDANCE WITH THE WIDTH AND DEPTH DIMENSIONS PROVIDED IN THE STREAM AND WETLAND MITIGATION PLANVIEW, LONGITUDINAL PROFILE,CROSS SECTION, AND DETAIL SHEETS (SHEETS 3 THROUGH 9). CONSTRUCTED BOULDER/IN-STREAM STRUCTURES MUST BE WITHIN ONE-TENTH OF A FOOT OF THE DESIGNATED ELEVATIONS IN THE PLANS.

20.ONCE THE STREAM AND WETLAND MITIGATION ACTIVITIES HAVE BEEN CONSTRUCTED IN ACCORDANCE WITH THE PLANS, THE DISTURBED GROUND SURFACES WILL BE RESTORED IN ACCORDANCE WITH THE PROPOSED PLANTING PLAN (SHEET 10).

21. THE CONTRACTOR SHALL ONLY PERFORM STREAM MITIGATION ACTIVITIES, INCLUDING ALL GRADING, BANK STABILIZATION, AND BOULDER/IN-STREAM STRUCTURES ON A SECTION OF STREAM THAT CAN BE ENTIRELY COMPLETED PRIOR TO THE LIKELIHOODOF A RAIN OCCURRENCE. CONTRACTOR SHALL NOT EXCEED THREE DAYS BEFORE SEEDING, MULCHING AND BLANKETING DISTURBED AREAS ALONG THE STREAM MITIGATION REACH AND WETLAND MITIGATION AREA. SHOULD THE CHANCE OF RAIN BEPRESENT, THE CONTRACTOR WILL SEED, MULCH, AND BLANKET THE STREAM MITIGATION REACH AND WETLAND MITIGATION MORE FREQUENTLY.

22. WHERE CONSTRUCTION OR LAND DISTURBING ACTIVITIES OUTSIDE OF THE MITIGATION AREAS WILL OR HAVE BEEN TEMPORARILY CEASED ON A PORTION OF THE SITE, TEMPORARY STABILIZATION MEASURES SHALL BE REQUIRED AS SOON AS PRACTICABLE,BUT NO LATER THAN 14 DAYS AFTER ACTIVITIES HAVE CEASED. THESE MEASURES SHOULD INCLUDE SEEDING OF ANNUAL COVER AND MULCHING THE DISTURBED AREAS WITH CLEAN STRAW.

23. THE CONTRACTOR SHALL BE RESPONSIBLE FOR REMOVAL OF SILT FENCING, EXCLUSION FENCING, AND EROSION CONTROL MEASURES ONCE THE PROPOSED CONSTRUCTION AREAS ARE STABILIZED AND SEEDING/MULCHING OF ALL DISTURBED AREAS ISCOMPLETED IN ACCORDANCE WITH THE PLANS.

CONSTRUCTION SEQUENCE:

1. CONTRACTOR SHALL CONDUCT THE STREAM AND WETLAND MITIGATION ACTIVITIES IN ACCORDANCE WITH THE PLANS. ANY DEVIATION FROM PLANS MUST BE APPROVED BY A REPRESENTATIVE OF RIVER RIDGE.

2. ELEVATIONS ON THE PLAN SET ARE BASED ON A SITE TOPOGRAPHIC SURVEY IN NAVD88 US FEET. THE CLIENT WILL PROVIDE THE SURVEY DATA TO THE CHOSEN CONTRACTOR PRIOR TO CONSTRUCTION.

3. IDENTIFY THE PROJECT BOUNDARIES, EXISTING TREES TO BE REMOVED (TBR), AND LIMITS OF DISTURBANCE WITH A RIVER RIDGE REPRESENTATIVE.

4. INSTALL STABILIZED CONSTRUCTION ENTRANCE AND PREPARE STAGING AREAS AND HAUL ROUTES PER THE EPSC PLAN (SHEET 11). FORMER FIFTH STREET IS TO BE USED FOR GAINING ACCESS TO THE STREAM AND WETLAND MITIGATIONSITES. CONTRACTOR IS RESPONSIBLE FOR IDENTIFYING AND GAINING PROPER APPROVALS FOR ESTABLISHING AN ACCESS TO THE PROJECT SITE FROM THE ADJACENT PUBLIC ROAD.

5. INSTALL AND MAINTAIN THE EROSION CONTROL MEASURES IN ACCORDANCE WITH EPSC PLAN (SHEET 11).

6. CLEAR AREAS WITHIN PROPOSED STREAM AND WETLAND MITIGATION AREAS AS NEEDED WITHIN LIMITS OF DISTURBANCE TO CONSTRUCT THE PROPOSED STREAM MITIGATION ACTIVITIES, ADJACENT STREAM GRADING, AND WETLANDMITIGATION ACTIVITIES. DOWNED TREES AND SHRUBS MAY BE CHIPPED UP AND SPREAD THINLY (MAXIMUM THICKNESS OF ONE-HALF INCH) WITHIN THE ADJACENT RIPARIAN AREA AND USED AS MULCH OR HAULED AND DISPOSED OFF-SITEIN AN APPROVED MANNER. AFTER REACHING ONE-HALF AN INCH OF WOOD CHIPS WITHIN THE STREAM AND WETLAND MITIGATION AREAS. ALL REMAINING WOODY MATERIALS ARE TO BE HAULED AND DISPOSED OF OFF-SITE IN ANAPPROVED MANNER.

7. ONCE THE SPECIFIED EPSC MEASURES ARE INSTALLED, THE CONTRACTOR MAY BEGIN EXCAVATING ACTIVITIES WITHIN THE WETLAND MITIGATION AREA. BEFORE CONSTRUCTION OF THE EMERGENT WETLAND MAY COMMENCE, THEPROPOSED EARTHEN BERM AND VEGETATED OUTLET MUST FIRST BE CONSTRUCTED. THE CONTRACTOR MUST FIRST STRIP THE TOPSOIL FOR LATER PLACEMENT WITHIN THE WETLAND AREA. THE CONTRACTOR WILL THEN BEGIN TOEXCAVATE THE WETLAND MITIGATION AREA UTILIZING THE FIRST EXCAVATED MATERIAL TO CONSTRUCT THE DIVERSION DIKE IN THE WESTERN PART OF THE SITE. THE DIVERSION DIKE WILL FUNCTION AS A SEDIMENT TRAP TO HELP FILTERANY COLLECTED SEDIMENT-LADEN WATER FROM THE SITE INTO THE VEGETATED SWALE. SEDIMENT-LADEN WATER SHALL BE PUMPED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE.

8. ONCE THE EARTHEN BERM IS CONSTRUCTED, THE TOP, OUTLET, AND SIDE SLOPES OF THE EARTHEN BERM WILL BE SEEDED IN ACCORDANCE WITH WITH THE PROPOSED PLANTING PLAN (SHEET 10). AFTER THE EARTHEN BERM ISCONSTRUCTED AND STABILIZED THE CONTRACTOR CAN EXCAVATE THE REMAINING SOILS FOR THE PROPOSED WETLAND ESTABLISHMENT.

9. THE CONTRACTOR SHALL CONSTRUCT THE PROPOSED EMERGENT WETLAND IN ACCORDANCE WITH THE WIDTH AND DEPTH DIMENSIONS BY STATION RANGES PROVIDED IN THE WETLAND GRADING PLAN AND SECTIONS (SHEETS 5 THROUGH8). DURING GRADING, CONTRACTOR SHALL ALLOW FOR PLACEMENT OF FOUR TO SIX INCHES OF TOPSOIL WITHIN AND ALONG THE PROPOSED WETLAND MITIGATION AREA, SLOPE EMBANKMENT, AND EARTHEN BERM. FINAL GRADE SHALLBE WITHIN TWO-TENTHS OF A FOOT OF THE DESIGNATED ELEVATIONS IN THE PLANS.

10. ALL DISTURBED SOILS WILL BE GRADED AND STABILIZED AS SOON AS POSSIBLE. PERMANENT STABILIZATION WILL OCCUR WITHIN 14 DAYS OF REACHING FINAL GRADS. WHERE CONSTRUCTION OR LAND-DISTURBING ACTIVITY WILL OR HASTEMPORARILY CEASED ON ANY PORTION OF THE SITE, TEMPORARY SITE STABILIZATION MEASURES SHALL BE REQUIRED AS SOON AS PRACTICAL, BUT NO LATER THAN 14 CALENDAR DAYS AFTER THE ACTIVITY HAS CEASED.

11. ONCE THE WETLAND MITIGATION ACTIVITIES HAVE BEEN CONSTRUCTED IN ACCORDANCE WITH THE PLANS, THE DISTURBED GROUND SURFACES WILL BE SEEDED AND STRAW MULCHED IN ACCORDANCE WITH THE PROPOSED PLANTINGPLAN (SHEET 10).

12. ALL STREAM CONSTRUCTION ACTIVITIES SHALL TAKE PLACE IN DRY OR LOW FLOW CONDITIONS. IF WATER IS PRESENT IN THE STREAM REACH UNDER CONSTRUCTION, CONTRACTOR SHALL UTILIZE PUMP AROUND OPERATIONS INACCORDANCE WITH DETAILS 39 and 59.

13. BEGIN CONSTRUCTION OF THE STREAM MITIGATION ACTIVITIES AT THE MOST UPSTREAM END OF THE STREAM RE-ESTABLISHMENT REACH AND WORK DOWNSTREAM. GRADE THE STREAM CHANNEL IN ACCORDANCE WITH THE PLANFORM,LONGITUDINAL PROFILE, AND CROSS SECTIONS SHEETS (SHEETS 3 AND 4). THE SUBGRADE SURFACES OF AREAS TO RECEIVE FILL SHALL BE COMPACTED UTILIZING CONSTRUCTION EQUIPMENT SUCH AS EXCAVATOR OR DOZER WITH AMINIMUM OF FOUR PASSES. SOIL FILL SHALL BE PLACED IN LOOSE LIFTS NOT EXCEEDING 12-INCHES AND THEN COMPACTED WITH AN EXCAVATOR OR A DOZER TO 85% TO 90% OF STANDARD PROCTOR DENSITY. CARE SHOULD BE TAKENTO NOT OVER COMPACT THE SOILS (> 90% STANDARD PROCTOR DENSITY), WHICH MAY PROHIBIT TREE AND SHRUB GROWTH. DURING GRADING, CONTRACTOR SHALL ALLOW FOR PLACEMENT OF THREE TO FOUR INCHES OF TOPSOILALONG THE STREAM MITIGATION REACH TO ACHIEVE PROPOSED FINAL GRADES. MAINTAIN WELL DRAINED EMBANKMENT AND EXCAVATION TO PREVENT PONDING AND SOFTENING OF SOILS.

14. LAYOUT AND CONSTRUCT EACH IN-STREAM STRUCTURE PER THE PLANFORM, LONGITUDINAL PROFILE, CROSS SECTIONS, AND DETAILS SHOWN IN THE PLANS (SHEETS 3, 4, AND 9, RESPECTIVELY). CONSTRUCTED STRUCTURES MUST BEWITHIN ONE-TENTH OF A FOOT OF THE DESIGNATED DESIGN ELEVATIONS. RIFFLE STRUCTURES MUST MAINTAIN A POSITIVE SLOPE FROM THE HEAD OF THE RIFFLE (UPSTREAM) TO THE END OF THE RIFFLE (DOWNSTREAM).

15. SEED AND MULCH ALL DISTURBED AREAS AND BLANKET STREAMBANKS AFTER COMPLETION OF STREAM MITIGATION ACTIVITIES IN ACCORDANCE WITH THE PROPOSED PLANTING PLAN AND EPSC PLAN (SHEETS 10 AND 11, RESPECTIVELY).PREPARE THE PLANTING SURFACE BY LOOSENING THE TOP LAYER OF SOIL. APPLY AND SEED AND STRAW IN ACCORDANCE WITH THE PROPOSED PLANTING PLAN (SHEET 10). THEN INSTALL THE SPECIFIED EROSION CONTROL BLANKET INACCORDANCE WITH THE PLANS AND DETAILS.

16. CONTRACTOR SHALL ONLY PERFORM STREAM MITIGATION ACTIVITIES ON A SECTION OF STREAM THAT CAN BE ENTIRELY COMPLETED PRIOR TO THE LIKELIHOOD OF RAIN OCCURRENCE. CONTRACTOR SHALL NOT EXCEED THREE DAYSBEFORE SEEDING, MULCHING, AND BLANKETING DISTURBED AREAS ALONG THE STREAM MITIGATION REACH AND WETLAND AREA. SHOULD THE CHANCE OF RAIN BE PRESENT, THE CONTRACTOR WILL SEED, MULCH, AND BLANKET STREAMMITIGATION REACH AND WETLAND MITIGATION AREA MORE FREQUENTLY.

17. PLANT TREES WITHIN THE STREAM MITIGATION RIPARIAN CORRIDOR IN FIRST DORMANT SEASON (LATE NOVEMBER TO LATE FEBRUARY) FOLLOWING CONSTRUCTION ACTIVITIES AND IN ACCORDANCE WITH THE PROPOSED PLANTING PLAN(SHEET 10).

18. REMOVE ALL WASTE GENERATED AND MATERIALS NOT UTILIZED FOR THE MITIGATION ACTIVITIES FROM THE PROJECT SITE. RESTORE ALL STAGING, STOCKPILE AND HAUL ROADS TO THEIR ORIGINAL APPEARANCE OR BETTER. SEED ANDMULCH ALL DISTURBED AREAS IN ACCORDANCE WITH THE PROPOSED PLANTING PLAN (SHEET 10).

301530

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PROPOSED RIFFLE

PROPOSED BOULDER J-HOOK

EXISTING INTERMITTENT STREAM (NO ACTION)

EXISTING INTERMITTENT STREAMBANKS

EXISTING RIFFLE

EXISTING BOULDER CROSS VANE

EXISTING ONE-FOOT CONTOURS

EXISTING SEWER LINE/EASEMENT

LEGEND

STREAM MITIGATION SITEWETLAND MITIGATION SITE

PROPOSED EMERGENT WETLAND (0.28 ACRE)

EXISTING EMERGENT WETLAND (DO NOT DISTURB)

PROPOSED ONE-FOOT CONTOURS

EXISTING WATER MAIN

EXISTING FENCE - TO BE REMOVED

NOTES:1. THIS DRAWING HAS BEEN PREPARED IN PART BY UTILIZING INFORMATION PROVIDED BY OTHERS. THE ENGINEER HAS

NOT VERIFIED THE ACCURACY AND/OR COMPLETENESS OF THIS INFORMATION AND SHALL NOT BE RESPONSIBLE FORANY ERRORS OR OMISSIONS THAT MAY BE INCORPORATED AS A RESULT OF ERRONEOUS INFORMATION PROVIDED BYOTHERS.

2. THE INFORMATION SHOWN ON THIS DRAWING CONCERNING TYPE AND LOCATION OF UNDERGROUND UTILITIES IS NOTGUARANTEED TO BE ACCURATE OR ALL INCLUSIVE. CONTRACTOR IS RESPONSIBLE TO VERIFY THE LOCATION, SIZE,AND MATERIAL OF ALL EXISTING UTILITIES IN THE PROJECT AREA. INDIANA811 CALL CENTER MUST BE CONTACTED AMINIMUM OF TWO BUSINESS DAYS PRIOR TO ANY EXCAVATION FOR VERIFICATION OF LOCATION, SIZE AND MATERIALOF UNDERGROUND UTILITIES. CALL 811 OR 1-800-382-5544.

3. JURISDICTIONAL WATER/WETLAND BOUNDARIES WERE DELINEATED AND SURVEYED BY REDWING WETLAND SCIENTISTSON MAY 26, JULY 12 AND 24, 2017 AND JUNE 6, 2018. THESE BOUNDARIES HAVE BEEN VERIFIED BY THE U.S. ARMYCORPS OF ENGINEERS.

LIMITS OF GRADING

SOURCE: TOPOGRAPHIC BASEMAP FROM SURVEY CONDUCTED BY REDWING ECOLOGICAL SERVICES ON OCTOBER 24, 2007

EXISTING PERENNIAL STREAM

EXISTING DECOMMISSIONED SANITARY SEWER

CR

OS

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EC

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N 2

CRO

SS SECTIO

N 3 CROSS SECTION 4

PROPOSED INTERMITTENT STREAM 1RE-ESTABLISHMENT REACH

PROPOSED RIFFLE

PROPOSED BOULDER J-HOOK

49

19

EXISTING REHABILITATEDINTERMITTENT STREAM 1

491

491

491

490

490

491

491491

491

489

490

491

ELE

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ELE

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485

486

487

488

489

490

491

492

493

485

486

487

488

489

490

491

492

493

0+00 0+50 1+00 1+50 2+00 2+50 2+60

0+

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48

9.50

PROPOSED BOULDER J-HOOK

CR

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N 2

CR

OS

S S

EC

TIO

N 1

CR

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S S

EC

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N 3

CR

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N 4

PROPOSED RIFFLE

0+16

.049

0.48

0+31

.649

0.46

0+41

.749

0.45

0+54

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0.44

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0+77

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0+96

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0.38

1+21

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2+07

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0.27

2+17

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48

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48

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9.45

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48

9.43

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77.1

48

9.40

0+86

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488.

70

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48

9.40

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48

9.37

1+21

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488.

67

1+

31.6

48

9.37

1+

46.4

48

9.32

1+

58.0

48

8.91

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48

8.61

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48

9.30

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48

9.22

2+37

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488.

54

2+

51.7

48

9.22

PROPOSED THALWEG

PROPOSED BANKFULLSLOPE = 0.11% (0.0011 FT/FT)

49 1

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48

9.26

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48

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SCALE: HORIZONTAL 1" = 10'VERTICAL 1" = 1'EXISTING SURFACE ALONG PROPOSED THALWEG

EXISTING SURFACE ALONG PROPOSED LEFT DESCENDING BANK

EXISTING SURFACE ALONG PROPOSED RIGHT DESCENDING BANK

PROPOSED BANKFULL ELEVATION

PROPOSED THALWEG ELEVATION

STREAM MITIGATION LIMITS OF DISTURBANCE (0.42 ACRE)STREAM MITIGATION PROJECT BOUNDARY

EXISTING INTERMITTENT STREAM (TO BE RE-ESTABLISHED)

PROPOSED INTERMITTENT STREAMBANKS

PROPOSED INTERMITTENT THALWEG

PROPOSED RIFFLE

PROPOSED BOULDER J-HOOK

EXISTING INTERMITTENT STREAM (NO ACTION)

EXISTING REHABILITATED INTERMITTENT STREAMBANKS

EXISTING RIFFLE

EXISTING BOULDER CROSS VANE

EXISTING ONE-FOOT CONTOURS

LEGEND

19

49

NOTES:1. THIS DRAWING HAS BEEN PREPARED IN PART BY UTILIZING INFORMATION PROVIDED BY OTHERS. THE ENGINEER HAS

NOT VERIFIED THE ACCURACY AND/OR COMPLETENESS OF THIS INFORMATION AND SHALL NOT BE RESPONSIBLE FORANY ERRORS OR OMISSIONS THAT MAY BE INCORPORATED AS A RESULT OF ERRONEOUS INFORMATION PROVIDED BYOTHERS.

2. THE INFORMATION SHOWN ON THIS DRAWING CONCERNING TYPE AND LOCATION OF UNDERGROUND UTILITIES IS NOTGUARANTEED TO BE ACCURATE OR ALL INCLUSIVE. CONTRACTOR IS RESPONSIBLE TO VERIFY THE LOCATION, SIZE,AND MATERIAL OF ALL EXISTING UTILITIES IN THE PROJECT AREA. INDIANA811 CALL CENTER MUST BE CONTACTED AMINIMUM OF TWO BUSINESS DAYS PRIOR TO ANY EXCAVATION FOR VERIFICATION OF LOCATION, SIZE AND MATERIALOF UNDERGROUND UTILITIES. CALL 811 OR 1-800-382-5544.

3. JURISDICTIONAL WATER/WETLAND BOUNDARIES WERE DELINEATED AND SURVEYED BY REDWING WETLAND SCIENTISTSON MAY 26, JULY 12 AND 24, 2017 AND JUNE 6, 2018. THESE BOUNDARIES HAVE BEEN VERIFIED BY THE U.S. ARMYCORPS OF ENGINEERS.

SOURCE: TOPOGRAPHIC BASEMAP FROM SURVEY CONDUCTED BY REDWING ECOLOGICAL SERVICES ON OCTOBER 24, 2007

EXISTING DECOMMISSIONED SANITARY SEWER

ELE

VATI

ON

(FE

ET)

ELE

VATI

ON

(FE

ET)

OFFSET (FEET)

PROPOSED POOL CROSS SECTION 1 AT STATION 0+41.7

487

488

489

490

491

492

493

494

487

488

489

490

491

492

493

494

0 5 10 15 20 25 300-5-10-15-20-25-30

POOL BANKFULL WIDTH (ft): 15.00POOL BANKFULL AREA (sf): 18.31POOL MAXIMUM DEPTH (ft): 1.70POOL MEAN DEPTH (ft): 1.22

LEFTDESCENDING

BANK

RIGHTDESCENDING

BANK

EXISTING GROUNDSURFACE

PROPOSEDGROUNDSURFACE

-5.0490.45

-1.6488.75

4.9488.75

10.0490.45

BANKFULL ELEV =490.45 FEET

3:1

100:1

2:1

3:1

3:1

100:1

15.0490.50

-10.0490.50

ELE

VATI

ON

(FE

ET)

ELE

VATI

ON

(FE

ET)

OFFSET (FEET)

PROPOSED RIFFLE CROSS SECTION 2 AT STATION 0+65.6

487

488

489

490

491

492

493

494

487

488

489

490

491

492

493

494

0 5 10 15 20 25 300-5-10-15-20-25-30

2:1 2:1

RIFFLE BANKFULL WIDTH (ft): 8.80RIFFLE BANKFULL AREA (sf): 6.32RIFFLE MAXIMUM DEPTH (ft): 1.00RIFFLE MEAN DEPTH (ft): 0.72

LEFTDESCENDING

BANK

EXISTING GROUNDSURFACE

PROPOSEDGROUNDSURFACE

RIGHTDESCENDING

BANK

100:1BANKFULL ELEV =

490.43 FEET

PROPOSED RIFFLE49

-4.4490.43

-2.8489.63

0.0489.43

2.8489.63

4.4490.43

3:1

3:1

100:19.4

490.48-12.3

490.51

ELE

VATI

ON

(FE

ET)

ELE

VATI

ON

(FE

ET)

OFFSET (FEET)

PROPOSED POOL CROSS SECTION 3 AT STATION 1+21.4

487

488

489

490

491

492

493

494

487

488

489

490

491

492

493

494

0 5 10 15 20 25 300-5-10-15-20-25-30

POOL BANKFULL WIDTH (ft): 11.50POOL BANKFULL AREA (sf): 12.33POOL MAXIMUM DEPTH (ft):1.70POOL MEAN DEPTH (ft): 1.07

LEFTDESCENDING

BANK

RIGHTDESCENDING

BANK

EXISTING GROUNDSURFACE

PROPOSEDGROUNDSURFACE

4.4490.37

BANKFULL ELEV =490.37 FEET

-7.1490.37

-2.0488.67

1.0488.67

100:1 3:1

100:1

2:1

3:1

9.4490.42

ELE

VATI

ON

(FE

ET)

ELE

VATI

ON

(FE

ET)

OFFSET (FEET)

PROPOSED RIFFLE CROSS SECTION 4 AT STATION 2+17.1

487

488

489

490

491

492

493

494

487

488

489

490

491

492

493

494

0 5 10 15 20 25 300-5-10-15-20-25-30

2:1 2:1

RIFFLE BANKFULL WIDTH (ft): 8.80RIFFLE BANKFULL AREA (sf): 6.32RIFFLE MAXIMUM DEPTH (ft): 1.00RIFFLE MEAN DEPTH (ft): 0.72

LEFTDESCENDING

BANK

RIGHTDESCENDING

BANK

EXISTING GROUNDSURFACE

PROPOSEDGROUNDSURFACE

100:1100:1

PROPOSED RIFFLE49

-4.4490.26

BANKFULL ELEV =490.26 FEET

4.4490.26

2.8489.46

0.0489.26

-2.8489.46

5:1

-9.4490.31

INTE

RM

ITTE

NT

STR

EA

M 1

RE

-ES

TAB

LIC

HM

EN

T -

PR

OP

OS

ED

CR

OS

S S

EC

TIO

NS

CROSS SECTIONS ARE VIEWED LOOKINGDOWNSTREAM/UPSTATION.

LEN

TZ A

VEN

UE

STR

EA

M A

ND

WE

TLA

ND

MIT

IGA

TIO

N P

RO

JEC

TC

LAR

K C

OU

NTY

, IN

DIA

NA

DRAFT SUBMITTAL / NOT FOR CONSTRUCTION

124

4

SCALE: HORIZONTAL 1" = 5'VERTICAL 1" = 1'

SCALE: HORIZONTAL 1" = 5'VERTICAL 1" = 1'

SCALE: HORIZONTAL 1" = 5'VERTICAL 1" = 1'

SCALE: HORIZONTAL 1" = 5'VERTICAL 1" = 1'

RIV

ER

RID

GE

DE

VELO

PM

EN

T A

UTH

OR

ITY

6200

EA

ST

HIG

HW

AY

62B

UIL

DIN

G 2

501,

SU

ITE

600

JEFF

ER

SO

NVI

LLE

, IN

DIA

NA

471

30

A A'D

'

E

PROPOSED EARTHEN BERM

PROPOSEDVEGETATED OUTLET

496.5

499

498

497

498

499

500

499

D

BB'

CC

'

E'

CP5NORTHING: 1136294.93'

EASTING: 324158.84'ELEVATION: 503.08'

FORMER FIFTH STREET

EXISTING WETLAND(DO NOT DISTURB)

497

497

496.5

496.5

497

496.5

497

497

498500

497

498

499

501

502

503

504

500

499

499

499

499

498

499

PROPOSED WETLANDESTABLISHMENT AREA

EM

ER

GE

NT

WE

TLA

ND

ES

TAB

LIS

HM

EN

TG

RA

DIN

G P

LAN

0

SCALE IN FEET

10 5 10

LEN

TZ A

VEN

UE

STR

EA

M A

ND

WE

TLA

ND

MIT

IGA

TIO

N P

RO

JEC

TC

LAR

K C

OU

NTY

, IN

DIA

NA

DRAFT SUBMITTAL / NOT FOR CONSTRUCTION

12

RIV

ER

RID

GE

DE

VELO

PM

EN

T A

UTH

OR

ITY

6200

EA

ST

HIG

HW

AY

62B

UIL

DIN

G 2

501,

SU

ITE

600

JEFF

ER

SO

NVI

LLE

, IN

DIA

NA

471

30

5

5

NOTES:1. THIS DRAWING HAS BEEN PREPARED IN PART BY UTILIZING INFORMATION PROVIDED BY OTHERS. THE ENGINEER HAS

NOT VERIFIED THE ACCURACY AND/OR COMPLETENESS OF THIS INFORMATION AND SHALL NOT BE RESPONSIBLE FORANY ERRORS OR OMISSIONS THAT MAY BE INCORPORATED AS A RESULT OF ERRONEOUS INFORMATION PROVIDED BYOTHERS.

2. THE INFORMATION SHOWN ON THIS DRAWING CONCERNING TYPE AND LOCATION OF UNDERGROUND UTILITIES IS NOTGUARANTEED TO BE ACCURATE OR ALL INCLUSIVE. CONTRACTOR IS RESPONSIBLE TO VERIFY THE LOCATION, SIZE,AND MATERIAL OF ALL EXISTING UTILITIES IN THE PROJECT AREA. INDIANA811 CALL CENTER MUST BE CONTACTED AMINIMUM OF TWO BUSINESS DAYS PRIOR TO ANY EXCAVATION FOR VERIFICATION OF LOCATION, SIZE AND MATERIALOF UNDERGROUND UTILITIES. CALL 811 OR 1-800-382-5544.

3. JURISDICTIONAL WATER/WETLAND BOUNDARIES WERE DELINEATED AND SURVEYED BY REDWING WETLAND SCIENTISTSON MAY 26, JULY 12 AND 24, 2017 AND JUNE 6, 2018. THESE BOUNDARIES HAVE BEEN VERIFIED BY THE U.S. ARMYCORPS OF ENGINEERS.

WETLAND MITIGATION LIMITS OF DISTURBANCE (0.89 ACRE)WETLAND MITIGATION PROJECT BOUNDARY

EXISTING ONE-FOOT CONTOURS

EXISTING SEWER LINE/EASEMENT

LEGEND

PROPOSED EMERGENT WETLAND (0.28 ACRE)

EXISTING EMERGENT WETLAND (DO NOT DISTURB)

PROPOSED ONE-FOOT CONTOURS

EXISTING WATER MAIN

LIMITS OF GRADING

SOURCE: TOPOGRAPHIC BASEMAP FROM SURVEY CONDUCTED BY REDWING ECOLOGICAL SERVICES ON OCTOBER 24, 2007

ELE

VATI

ON

(FE

ET)

ELE

VATI

ON

(FE

ET)

STATION (FEET)

SECTION A-A'

494

495

496

497

498

499

500

501

502

494

495

496

497

498

499

500

501

502

0+00 0+25 0+50 0+75 1+00 1+25 1+50 1+75 2+00 2+25 2+50

8:1

8:1

5:1

5:1

5:1 5:1

PROPOSED SURFACE

EXISTING GROUND SURFACE

EXISTING WETLAND(DO NOT DISTURB)

0+35

.749

8.59

0+

49.6

49

7.00

0+67

.449

7.00

0+

69.9

49

6.50

0+

85.7

49

6.50

0+88

.249

7.00

1+28

.549

7.00

1+

31.0

49

6.50

1+

54.6

49

6.50

1+57

.249

7.00

1+

94.5

49

7.00

2+03

.949

8.11

0+18

.849

9.04

0+24

.049

8.72

A A'

ELE

VATI

ON

(FE

ET)

ELE

VATI

ON

(FE

ET)

STATION (FEET)

SECTION B-B'

494

495

496

497

498

499

500

501

502

494

495

496

497

498

499

500

501

502

0+00 0+25 0+50 0+75 1+00 1+25 1+50 1+75 2+00 2+25 2+30

8:1

5:1

5:1

5:1 5:1

PROPOSED SURFACE

EXISTING GROUND SURFACE

EXISTING WETLAND(DO NOT DISTURB)

8:1

0+35

.349

8.65

0+

49.6

49

7.00

0+

54.9

49

7.00

0+

57.4

49

6.50

0+

72.5

49

6.50

0+

75.0

49

7.00

1+

47.2

49

7.00

1+

49.8

49

6.50

1+

65.2

49

6.50

1+

68.0

49

7.00

1+

91.1

49

7.00

1+97

.149

7.72

0+19

.649

8.73

0+25

.849

8.72

B B'

LEN

TZ A

VEN

UE

STR

EA

M A

ND

WE

TLA

ND

MIT

IGA

TIO

N P

RO

JEC

TC

LAR

K C

OU

NTY

, IN

DIA

NA

DRAFT SUBMITTAL / NOT FOR CONSTRUCTION

126

6

EM

ER

GE

NT

WE

TLA

ND

ES

TAB

LIS

HM

EN

T -

PR

OP

OS

ED

SE

CTI

ON

S (S

HE

ET

1 O

F 3)

SCALE: HORIZONTAL 1" = 10'VERTICAL 1" = 1'

SCALE: HORIZONTAL 1" = 10'VERTICAL 1" = 1'

RIV

ER

RID

GE

DE

VELO

PM

EN

T A

UTH

OR

ITY

6200

EA

ST

HIG

HW

AY

62B

UIL

DIN

G 2

501,

SU

ITE

600

JEFF

ER

SO

NVI

LLE

, IN

DIA

NA

471

30

ELE

VATI

ON

(FE

ET)

ELE

VATI

ON

(FE

ET)

STATION (FEET)

SECTION C-C'

494

495

496

497

498

499

500

501

502

494

495

496

497

498

499

500

501

502

0+00 0+25 0+50 0+75 1+00 1+25 1+50

4:1

5:1 5:1

PROPOSED SURFACE

EXISTING GROUND SURFACE

8:1

0+

84.3

49

6.50

0+86

.849

7.00

C C'

1+

23.4

49

7.00

1+46

.849

9.92

0+

30.9

49

6.50

0+28

.449

7.00

0+

20.5

49

7.00

0+13

.049

9.00

0+08

.049

9.00

0+

05.1

49

8.27

4:1

ELE

VATI

ON

(FE

ET)

ELE

VATI

ON

(FE

ET)

STATION (FEET)

SECTION D-D'

494

495

496

497

498

499

500

501

502

494

495

496

497

498

499

500

501

502

0+00 0+25 0+50 0+75 1+00 1+25 1+50 1+65

4:1

5:1 5:1

PROPOSED SURFACE

EXISTING GROUND SURFACE

8:1

0+

05.9

49

7.56

0+11

.549

9.00

0+16

.949

9.00

0+

24.5

49

7.00

0+83

.449

7.00

0+

85.9

49

6.50

1+

00.9

49

6.50

1+03

.549

7.00

1+

30.4

49

7.00

1+55

.249

9.97

D D'

4:1

LEN

TZ A

VEN

UE

STR

EA

M A

ND

WE

TLA

ND

MIT

IGA

TIO

N P

RO

JEC

TC

LAR

K C

OU

NTY

, IN

DIA

NA

DRAFT SUBMITTAL / NOT FOR CONSTRUCTION

127

7

SCALE: HORIZONTAL 1" = 10'VERTICAL 1" = 1'

SCALE: HORIZONTAL 1" = 10'VERTICAL 1" = 1'

EM

ER

GE

NT

WE

TLA

ND

ES

TAB

LIS

HM

EN

T -

PR

OP

OS

ED

SE

CTI

ON

S (S

HE

ET

2 O

F 3)

RIV

ER

RID

GE

DE

VELO

PM

EN

T A

UTH

OR

ITY

6200

EA

ST

HIG

HW

AY

62B

UIL

DIN

G 2

501,

SU

ITE

600

JEFF

ER

SO

NVI

LLE

, IN

DIA

NA

471

30

ELE

VATI

ON

(FE

ET)

ELE

VATI

ON

(FE

ET)

STATION (FEET)

SECTION E-E'

494

495

496

497

498

499

500

501

502

494

495

496

497

498

499

500

501

502

0+00 0+25 0+50 0+75 1+00 1+25 1+40

5:1 5:1

PROPOSED SURFACE

EXISTING GROUND SURFACE

0+

08.9

49

7.94

0+14

.449

9.00

0+21

.249

9.00

0+

31.5

49

7.00

0+73

.949

7.00

0+

76.5

49

6.50

0+

91.5

49

6.50

0+94

.049

7.00

1+

18.0

49

7.00

1+33

.349

8.90

5:1

8:1

5:1

E'E

LEN

TZ A

VEN

UE

STR

EA

M A

ND

WE

TLA

ND

MIT

IGA

TIO

N P

RO

JEC

TC

LAR

K C

OU

NTY

, IN

DIA

NA

DRAFT SUBMITTAL / NOT FOR CONSTRUCTION

128

8

SCALE: HORIZONTAL 1" = 10'VERTICAL 1" = 1'

EM

ER

GE

NT

WE

TLA

ND

ES

TAB

LIS

HM

EN

T -

PR

OP

OS

ED

SE

CTI

ON

S (S

HE

ET

3 O

F 3)

RIV

ER

RID

GE

DE

VELO

PM

EN

T A

UTH

OR

ITY

6200

EA

ST

HIG

HW

AY

62B

UIL

DIN

G 2

501,

SU

ITE

600

JEFF

ER

SO

NVI

LLE

, IN

DIA

NA

471

30

FLOW DIRECTION NOTES1. ALL RIFFLE MATERIAL SHALL BE FROM AN APPROVED SOURCE AND SHALL BE OF APPROPRIATE COLOR (E.G. GREEN/GRAY,

BROWN/GRAY, DARK GRAY, AND/OR DARK BROWN IN COLOR, OR AS APPROVED BY A RIVER RIDGE REPRESENTATIVE).

2. RIFFLE MATERIAL SHALL CONSIST OF A MIXTURE OF 70% ROCK WITH A MEAN DIAMETER SIZE OF 10" (INDOT CLASS I RIPRAP ORAPPROVED EQUIVALENT), 20% ROCK WITH A MEAN DIAMETER OF APPROXIMATELY 1.5 TO TWO INCHES (INDOT NO. 2 CRUSHEDSTONE OR APPROVED EQUIVALENT, AND 10% SOIL OR SAND.

3. RIFFLE MATERIAL SHALL BE EXTEND A MINIMUM OF 24" BELOW THE PROPOSED GRADE OF THE STREAMBED AND SHALLEXTEND TO ELEVATION AS SHOWN IN PROPOSED LONGITUDINAL PROFILE.

4. RIFFLE MATERIAL SHALL EXTEND UP TO 1/2 THE BANKFULL MAXIMUM DEPTH ALONG THE STREAMBANKS AS SHOWN IN THEADJACENT DETAIL AND SHALL BE KEYED IN TO THE LATERAL EXTENT OF THE PROPOSED STREAMBANKS.

5. RIFFLE MATERIAL SHALL BE PLACED SUCH THAT THE LOWEST ELEVATION OF THE STREAMBED IS IN THE CENTER OF THESTREAM.

6. ONCE PLACED, THE RIFFLE MATERIAL SHALL BE COMPACTED TO THE FINAL STREAMBED ELEVATION WITH CONSTRUCTIONEQUIPMENT SUCH AS AN EXCAVATOR OR A DOZER WITH A MINIMUM OF FOUR PASSES.

CHANNNEL WIDTH VARIES

BA

NK

FULL W

IDTH

(VAR

IES

)

BANKFULL ELEVATION (VARIES)

CONSTRUCTED RIFFLE

TOE OF SLOPE

BANKFULL WIDTH

RIFFLE LENGTH VARIES

EXISTING STREAMBED

CONSTRUCTED RIFFLECROSS SECTION VIEW

NTS

CONSTRUCTED RIFFLEPLAN VIEW

NTS

49

MINIMUM 24"

NOTES:

1. THE CONTRACTOR MAY USE AN EXCAVATOR WITH A HYDRAULIC THUMB TO CONSTRUCT THE BOULDER J-HOOKSTRUCTURE.

2. THE CONTRACTOR SHALL NOTIFY THE ENGINEER A MINIMUM OF 48 HOURS PRIOR TO CONSTRUCTING ANY BOULDERJ-HOOK STRUCTURE.

3. CONTRACTOR TO FIRST SHAPE CHANNEL TO GRADES AS SPECIFIED IN THE PLANFORM, LONGITUDINAL PROFILE,AND CROSS SECTIONS AS SHOWN IN THE STREAM MITIGATION PLANS (SHEETS 3 AND 4). CONTRACTOR SHALL THENEXCAVATE ENOUGH CHANNEL BED AND BANK MATERIALS TO ALLOW FOR PLACEMENT OF BOULDERS, FILTERFABRIC, SPECIAL BACKFILL MATERIAL, INDOT REVETMENT RIPRAP, AND SOIL BACKFILL. SEE GENERAL ROCKIN-STREAM STRUCTURE NOTES ON THIS SHEET FOR SPECIFICATIONS OF SIZE AND TYPE OF BOULDERS TO BE USEDIN BOULDER J-HOOK STRUCTURE.

4. PLACEMENT OF BOULDERS SHALL START IN THE CENTER OF STREAM AND PROCEED TOWARDS OUTERSTREAMBANKS. CONSTRUCTION OF BOULDER J-HOOK STRUCTURE WILL REQUIRE INDIVIDUAL SELECTION ANDPLACEMENT OF EACH BOULDER WITHIN THE STRUCTURE. FOOTER ROCKS SHALL BE KEYED INTO THE STREAMBEDAND BANK AS SHOWN IN THE ADJACENT DETAIL. TOP ROCKS SHALL BE SLIGHTLY UPGRADIENT OF FOOTERBOULDERS BY APPROXIMATELY 13 THE BOULDER DIAMETER AS SHOWN IN THE DETAIL ABOVE.

5. ALL BOULDERS SHALL BE PLACED WITH THE PARALLEL FACES ORIENTED UP AND DOWN WITH THE TOP FACE TILTING15°+/-5° INTO THE STREAMBANK. BOULDERS SHALL BE INTERLOCKED AND SHALL NOT MOVE OR ROTATE IN PLACE.STRUCTURE SHALL BE CONSTRUCTED SUCH THAT BOULDERS FORM A CONTINUOUS, UNIFORM SLOPE WITH AMINIMUM OF STEPS. BOULDERS SHALL BE PLACED TIGHTLY AGAINST EACH OTHER TO MINIMIZE VOIDS. VOIDSGREATER THAN 2 INCHES IN ANY DIRECTION SHALL BE PLUGGED WITH INDIANA REVETMENT RIPRAP OR AVAILABLESTREAMBED MATERIAL OF SIMILAR SIZE ON THE UPSTREAM SIDE OF THE STRUCTURE SUCH THAT THE MATERIALWILL REMAIN SECURE.

6. INSTALL AASHTO CLASS II NON-WOVEN GEOTEXTILE FABRIC ALONG UPSTREAM FACE OF THE STRUCTURE AS SHOWNIN THE DETAIL. THEN, PLACE TWO FOOT THICK BY TWO FOOT WIDE LAYER OF SPECIAL BACKFILL MATERIAL ALONGUPSTREAM SIDE OF CONSTRUCTED STRUCTURE. SPECIAL BACKFILL MATERIAL SHALL CONSIST OF A MIXTURE OF50% INDOT REVETMENT RIPRAP, 30% INDOT NO. 2 CRUSHED STONE, AND 20% SOIL OR A MIXTURE OF OTHERAPPROVED COMPARABLE SIZED MATERIALS. ALSO, PLACE A TWO FOOT THICK BY TWO FOOT WIDE LAYER OF INDOTREVETMENT RIPRAP, OR OTHER APPROVED COMPARABLE SIZE MATERIAL, ALONG THE DOWNSTREAM SIDE OF THECONSTRUCTED BOULDER STRUCTURE. STREAMBANK AND BED AROUND STRUCTURE SHALL BE BACKFILLED ANDCOMPACTED TO FILL ALL VOIDS AND MEET FINISHED GRADE. DO NOT LEAVE ANY EXPOSED FILTER FABRIC IN THECHANNEL BED OR ALONG THE STREAMBANK.

BOULDER J-HOOOKPLAN VIEW

NTS

BOULDER J-HOOOKCROSS SECTION

NTS

BOULDER J-HOOOKPROFILE OF ARMS

NTS

STREAMBANK

AASHTO CLASS IINON-WOVEN GEOTEXTILE

FOOTERROCK

FLO

W D

IREC

TIO

N

VANE/HEADERROCK

STREAMBANK

20° - 30°TYP.

BURY END OF STRUCTUREMIN. 5' INTO STREAMBANKAT BANKFULL ELEVATION

TOP OF ROCKS ACROSS CENTEROF CHANNEL SHALL BE FLUSHWITH THE FINISHED STREAMBED STREAMBANK

FOOTER ROCKSVANE/HEADERROCK

INVERTVANE ROCK TOP OF FOOTER ROCKS SHALL BE PLACED MIN.

24" BELOW FINISHED GRADE ALONG ALLPORTIONS OF THE STRUCTURE TOPREVENT COLLAPSE OF VANE ROCKS

BURY END OF STRUCTUREAT 12 BANKFULL ON INSIDEOF MEANDER BEND A MINIMUM OF3' INTO STREAMBANK

219.88

BOULDER J-HOOK

FLOW

2 - 7%

1/2 BANKFULL ELEVATION

ARM

LEN

GTH

(L)

BANKFULL ELEVATION

BANKFULL ELEVATION

STREAMBED

1/3 BANKFULL WIDTH

19

TWO FOOT THICK BY TWO FOOTWIDE LAYER OF INDOT REVETMENTRIPRAP OR EQUIVALENT SIZEDSTREAMBED MATERIAL

TWO FOOT THICK BY TWO FOOT WIDELAYER OF SPECIAL BACKFILL MATERIAL(50% INDOT REVETMENT RIPRAP, 30%INDOT NO. 3 CRUSHED STONE, AND20% SOIL MIXTURE)

1. ALL ROCKS USED FOR CONSTRUCTION OF BOULDER J-HOOKS SHALL BE DENSE, SOUND AND FREE FROM CRACKS, SEAMS OR OTHER DEFECTS THAT MAY RESULT IN ACCELERATED WEATHERING; MUST BE OF APPROPRIATE COLOR (E.G.GREEN/GRAY, BROWN/GRAY, DARK GRAY, AND/OR DARK BROWN IN COLOR OR AS APPROVED BY A RIVER RIDGE REPRESENTATIVE); AND MUST BE FROM AN APPROVED SOURCE. ALL NEEDED BOULDER MATERIALS WILL BE AVAILABLEWITHIN THE RIVER RIDGE DEVELOPMENT APPROXIMATELY ONE MILE FROM THE STREAM MITIGATION SITE. RIVER RIDGE WILL PROVIDE THE BOULDER MATERIALS FREE OF CHARGE; HOWEVER, CONTRACTOR WILL NEED TO SORT, SELECT,LOAD, HAUL, AND UNLOAD THE NEEDED BOULDERS FROM THE BOULDER STAGING SITE TO THE STREAM MITIGATION SITE.

2. CONSTRUCTION OF ROCK STRUCTURES REQUIRES INDIVIDUAL SELECTION AND PLACEMENT OF EACH ROCK WITHIN EACH STRUCTURE.

3. ROCKS FOR BOULDER STRUCTURES ALONG THE INTERMITTENT STREAM 1 RE-ESTABLISHMENT REACH SHALL BE A MINIMUM OF 36" X 24" X 12".

4. FOOTER ROCKS SHALL BE PLACED INDIVIDUALLY AND KEYED INTO THE STREAMBED OR BANK AS SHOWN ON THE STRUCTURE DETAILS. IF BEDROCK IS PRESENT DIRECTLY BELOW HEADER OR WING ROCKS, FOOTER ROCK IS NOTNECESSARY.

5. TOP ROCKS (HEADER, VANE OR WING ROCKS) SHALL BE PLACED INDIVIDUALLY ABOVE AND OFFSET SLIGHTLY UPSTREAM OF THE FOOTER ROCKS BY APPROXIMATELY 13 ROCK DIAMETER AS SHOWN IN STRUCTURE DETAILS.

GENERAL ROCK IN-STREAM STRUCTURE NOTES

STREAM CHANNEL EROSION CONTROL MATTING

TOE

OF

BANK

STREAM BED

TOE

OF

BAN

K

TOE

OF

BANK

TOE

OF

BAN

K

STAKE LOCATION

3

4

9

3

5

6"

START ENDDETAIL 1

JUNCTION SLOTDETAIL 2

ANCHOR SLOTDETAIL 3

LAP JOINTDETAIL 4

TERMINAL ENDDETAIL 5

STAKE DETAIL

TAMP SOIL FIRMLY

ANCHOR

6"

12"

8"

6"

TAMP SOIL FIRMLY

6"

2"-5"

TAMP SOIL FIRMLY

6"

12"

3/4"

7/8"

5-7/8"

5-1/8"

1/4"

12"

3/4"

1"

NOTES1. BIOD-MAT 70 EROSION CONTROL MAT OR APPROVED EQUIVALENT SHALL BE USED.

2. CONTRACTOR MUST FOLLOW MANUFACTURER'S INSTALLATION INSTRUCTIONS.

3. PREPARE SOIL AREA BEFORE INSTALLING EROSION CONTROL MAT BY LOOSENING THE TOP 2-3" OF SOIL AND APPLYING LIME, FERTILIZER AND SEED.

4. THE APPROVED SEED MIXTURE SHALL BE BROADCAST EVENLY OVER THE DISTURBED AREAS AT A RATE OF 40 POUNDS PER ACRE (TABLE 1 ON SHEET 10). STRAW SHALL BE APPLIED AT A RATE OF TWO TONS PER ACRE OVER ALLDISTURBED AREAS.

5. THE EROSION CONTROL MATTING SHALL BE PLACED FROM THE TOE OF SLOPE WITHIN THE CHANNEL TO A MINIMUM OF FIVE FEET BEYOND THE BANKFULL ELEVATION OF THE CHANNEL. ANCHORS SHALL BE 12" WOODEN STAKES ORAPPROVED EQUIVALENT. STARTING AT THE UPSTREAM END OF THE CHANNEL, ANCHOR THE EROSION CONTROL MAT IN A 6" WIDE X 6" DEEP TRENCH WITH APPROXIMATELY 12" OF EROSION CONTROL MAT EXTENDING BEYOND THEUPSLOPE PORTION OF THE TRENCH. ANCHOR THE EROSION CONTROL MAT WITH STAKES APPROXIMATELY 12" APART IN THE BOTTOM OF THE TRENCH, AND THEN BACKFILL AND COMPACT SOIL IN THE TRENCH. APPLY LIME, FERTILIZER,AND SEED TO THE BACKFILLED SOIL AND THEN FOLD THE REMAINING 12" OF EROSION CONTROL MAT OVER THE BACKFILLED SOIL AND SECURE WITH A ROW OF STAKES APPROXIMATELY 12" APART (DETAIL 1).

6. ROLL THE EROSION CONTROL MAT OUT ALONG THE CHANNEL BANKS IN THE DIRECTION OF FLOW. UNROLL THE EROSION CONTROL MAT WITH THE APPROPRIATE SIDE AGAINST THE SOIL SURFACE. THE EROSION CONTROL MAT SHALL BESECURED TO THE SOIL SURFACE BY PLACING ONE ROW OF ANCHORS AT 18" INTERVALS. THE MIDDLE OF THE MATS SHOULD BE ANCHORED EVERY 18". PLACE ANCHORS IN A STAGGERED PATTERN. LAY MATS LOOSELY ON THE GROUND,ALLOWING A GOOD CONTACT BETWEEN THE SOIL AND THE MAT.

7. THE FULL LENGTH EDGE OF THE EROSION CONTROL MAT AT THE TOES OF THE BANK SHALL BE SECURED WITH A ROW OF STAKES SPACED APPROXIMATELY 12" APART.

8. CONSECUTIVE EROSION CONTROL MATS SHALL BE OVERLAPPED 8" WITH THE UPSTREAM MAT ON THE TOP AND SHALL BE ANCHORED WITH TWO ROWS OF STAKES SPACED APPROXIMATELY 12" APART IN A STAGGERED PATTERN. ROWSSHALL BE SPACED 6" APART (DETAIL 2).

9. THE FULL LENGTH EDGE OF THE EROSION CONTROL MAT ABOVE THE BANKFULL ELEVATION SHALL BE ANCHORED IN A 6" DEEP X 6" WIDE TRENCH (DETAIL 3).

10. ADJACENT EROSION CONTROL MATS SHALL OVERLAP APPROXIMATELY 2" - 5" AND SECURED WITH A ROW OF STAKES SPACED APPROXIMATELY 12" APART (DETAIL 4).

11. THE TERMINAL END OF THE EROSION CONTROL MAT SHALL BE ANCHORED IN A 6" DEEP X 6" WIDE TRENCH AND SECURED WITH A ROW OF STAPLES SPACED APPROXIMATELY 12" APART. THE TRENCH SHALL THEN BE BACKFILLED WITH SOILAND COMPACTED (DETAIL 5).

29

P

Streambank

Approved

Cross Section NTS

Pump Around Method

P

Silt Trapping

To

Check Dam (Sand Bag)

Method

6-mil plastic

Planview NTS

Streambed

Check DamFlow

Flexible Hose

Flow

Work Area

NOTES:

1. CHECK DAMS SHALL BE CONSTRUCTED WITH SAND BAGS AND PLASTIC LINER AS SHOWN IN DETAIL ABOVE. A WATER-INFLATABLE STRUCTURE MAY BE SUBSTITUTED FOR THE SAND BAGS AND PLASTIC LINER IF APPROVED BY THEENGINEER.

2. PRIOR TO ANY EXCAVATION IN THE STREAM CHANNEL, CHECK DAMS SHALL BE INSTALLED ACROSS THE STREAM AT BOTH THE UPSTREAM AND DOWNSTREAM EXTENTS OF THE STREAM MITIGATION REACH TO BE CONSTRUCTED.

3. CHECK DAMS SHALL ONLY BE INSTALLED DURING LOW FLOW CONDITIONS.

4. PUMP STREAM FLOW AROUND THE WORK AREA AS SHOWN IN THE DETAIL ABOVE. PUMPING MUST MAINTAIN A MINIMUM OF 1-FOOT FREEBOARD ON THE CHECK DAMS. STABILIZE THE DISCHARGE END OF THE PUMP AROUNDSYSTEM TO PREVENT SCOUR OF THE STREAM CHANNEL.

5. PUMP WATER FROM THE WORK AREA LOCATED BETWEEN THE CHECK DAMS TO A FILTER BAG, VEGETATED FILTER STRIP, OR OTHER APPROVED SILT TRAPPING METHOD.

6. PROCEED WITH IN-STREAM CONSTRUCTION ACTIVITIES.

7. ONCE THE IN-STREAM CONSTRUCTION ACTIVITIES ARE COMPLETE, STABILIZE THE STREAMBANKS WITH SEED, CLEAN STRAW MULCH, AND THE SPECIFIED EROSION CONTROL MAT PRIOR TO REINTRODUCING STREAM FLOWS INTOCOMPLETED WORK AREA.

8. PUMP WATER FROM THE STREAM INTO THE STABILIZED WORK AREA TO EQUALIZE WATER LEVELS PRIOR TO REMOVING CHECK DAMS.

9. CONSTRUCTION ACTIVITIES SHALL BE SCHEDULED SO THAT THE STREAM WORK CAN BE COMPLETED AND STABILIZED WITHIN ONE WORK DAY. PUMP AROUND ACTIVITIES MUST BE MAINTAINED CONTINUOUSLY WHILE CHECK DAMSARE INSTALLED IN STREAM CHANNEL.

Pump Around Method

Scour Protection

PUMP-AROUND DETAIL39

FILTER BAG

MULCH, LEAF/WOOD COMPOST,WOODCHIPS, SAND, ORNO. 57 CRUSHED STONE

NOTES:

1. TIGHTLY SEAL SLEEVE AROUND THE PUMP DISCHARGE HOSE WITH A STRAP OR SIMILAR DEVICE.

2. PLACE FILTER BAG ON SUITABLE BASE MATERIAL (E.G., MULCH, LEAF/WOOD COMPOST, WOODCHIPS, SAND, ORNO. 57 CRUSHED STONE). LOCATED ON A LEVEL OR 5% MAXIMUM SLOPING SURFACE. DISCHARGE TO ASTABILIZED AREA. EXTEND BASE MATERIAL A MINIMUM OF 12 INCHES FROM EDGES OF BAG.

3. CONTROL PUMPING RATE TO PREVENT EXCESSIVE PRESSURE WITHIN THE FILTER BAG IN ACCORDANCE WITHTHE MANUFACTURER RECOMMENDATIONS. AS THE BAG FILLS WITH SEDIMENT, REDUCE PUMPING RATE.

4. REMOVE AND PROPERLY DISPOSE OF FILTER BAG UPON COMPLETION OF PUMPING OPERATIONS OR AFTER BAGHAS REACHED CAPACITY, WHICHEVER OCCURS FIRST. SPREAD THE DEWATERED SEDIMENT FROM THE BAG INAN APPROVED UPLAND AREA AND STABILIZE WITH SEED AND MULCH BY THE END OF THE WORK DAY. RESTORETHE SURFACE AREA BENEATH THE BAG TO ORIGINAL CONDITION UPON REMOVAL OF THE DEVICE.

5. USE NONWOVEN GEOTEXTILE WITH DOUBLE STITCHED SEAMS USING HIGH STRENGTH THREAD. SIZE SLEEVE TOACCOMMODATE A MAXIMUM 4 INCH DIAMETER PUMP DISCHARGE HOSE. THE BAG MUST BE MANUFACTUREDFROM A NONWOVEN GEOTEXTILE THAT MEETS OR EXCEEDS MINIMUM AVERAGE ROLL VALUES (MARV) FOR THEFOLLOWING:

GRAB TENSILE 250 LB ASTM D-4632PUNCTURE 150 LB ASTM D-4833FLOW RATE 70 GAL/MIN/FT² ASTM D-4491PERMITTIVITY (SEC-1) 1.2 SEC-1 ASTM D-4491UV RESISTANCE 70% STRENGTH @ 500 HOURS ASTM D-4355APPARENT OPENING SIZE (AOS) 0.15-0.18 MM ASTM D-4751SEAM STRENGTH 90% ASTM D-4632

6. REPLACE FILTER BAG IF BAG CLOGS OR HAS RIPS, TEARS, OR PUNCTURES. DURING OPERATION KEEPCONNECTION BETWEEN PUMP HOSE AND FILTER BAG WATER TIGHT. REPLACE BEDDING IF IT BECOMESDISPLACED.

ELEVATION

STRAP

PUMP DISCHARGE HOSE

PLAN VIEW

12 IN MIN.

FILTER BAG DETAIL

P

P

59

LEN

TZ A

VEN

UE

STR

EA

M A

ND

WE

TLA

ND

MIT

IGA

TIO

N P

RO

JEC

TC

LAR

K C

OU

NTY

, IN

DIA

NA

DRAFT SUBMITTAL / NOT FOR CONSTRUCTION

129

9

MIT

IGA

TIO

N D

ETA

ILS

RIV

ER

RID

GE

DE

VELO

PM

EN

T A

UTH

OR

ITY

6200

EA

ST

HIG

HW

AY

62B

UIL

DIN

G 2

501,

SU

ITE

600

JEFF

ER

SO

NVI

LLE

, IN

DIA

NA

471

30

FORMER FIFTH

STREET

PROPOSED INTERMITTENT STREAM 1RE-ESTABLISHMENT REACH

EXISTINGREHABILITATEDINTERMITTENTSTREAM 1

491

491

491

490

490

490

491

491

490

491

492492

491

492

491

489

493494495

490

491

EXISTING BOULDER STOCKPILE

STREAMBANK PLANTING DETAILNOT TO SCALE

BANKFULL WIDTHVARIES

RIPARIAN PLANTING ZONE - TREES TO BE PLANTED PER PLANTING NOTES ABOVE, DETAIL 610, AND TABLE 2.

NATIVE GRASSES FROM TABLE 1 WILL BE SOWN ON CHANNEL SIDESLOPES AND ADJACENT DISTURBED AREAS AT A RATE OF 40 POUNDS PER ACRE.

EROSION CONTROL MATTINGINSTALLATION AREA

BANKFULL FLOW

EROSION CONTROL MATTINGINSTALLATION AREA

RIPARIANPLANTING ZONE

710

29

29

(2:1 MAX)

(3:1 MAX)

NOTES:1. ALL PLANT MATERIALS SHALL MEET AND BE INSTALLED IN ACCORDANCE WITH AMERICAN ASSOCIATION OF NURSERYMEN

STANDARDS.

2. MULCH SHALL BE DOUBLE PROCESSED HARDWOOD OR BETTER.

3. THE LANDSCAPE CONTRACTOR SHALL MAINTAIN AND GUARANTEE ALL TREES FOR A MINIMUM OF ONE YEAR FROM THEDATE OF ACCEPTANCE BY A RIVER RIDGE REPRESENTATIVE. THE LANDSCAPE CONTRACTOR SHALL REPLACE TREES IN ATIMELY MANNER DURING THE GUARANTEE PERIOD.

4. THE ONE-YEAR MAINTENANCE ACTIVITIES SHALL INCLUDE BUT ARE NOT LIMITED TO WATERING, SPRAYING, MULCHING, ANDFERTILIZING.

5. ALL UNHEALTHY OR DEAD PLANT MATERIAL SHALL BE REPLACED WITHIN ONE YEAR OR BY NEXT PLANTING PERIOD,WHICHEVER COMES FIRST.

6. THE LANDSCAPE CONTRACTOR SHALL BE RESPONSIBLE FOR REPAIRING ANY AND ALL DAMAGED UTILITIES, STRUCTURES,SITE APPURTENANCES, ETC., WHICH OCCUR AS A RESULT OF THE LANDSCAPE INSTALLATION.

CONTAINERIZED TREE PLANTING DETAIL

CONTAINER TREE PLANTING DETAILNOT TO SCALE

6" MIN. COMPACTED TOPSOILTO REDUCE SETTLEMENT

SCARIFY EDGESOF ROOTBALL

NATIVE SOIL BACKFILL 8" MIN.FOR BALLS LESS THAN 24" DIA.;

12" MIN. FOR BALLS OVER 24" DIA.

2" MIN. LOOSEMULCH, NO MULCHWITHIN 6" OF TRUNK

6" MOUNDED EARTH RIM

DASHED LINES REPRESENTMAX. GRADIENTS WHENPLANTING ON SLOPES

2'-3'

(VAR

IES)

SQUARE CUTBUDS FACING UPWARD

LIVE CUTTING (1/2" TO1 1/2" DIAMETER)

LIVE STAKE PLANTINGNOT TO SCALE

NOTE:

1. HARVEST/PURCHASE AND INSTALL LIVE STAKES, AS SPECIFIED INTABLE 3 ON THIS PAGE, DURING THE FIRST DORMANT SEASON(EARLY DECEMBER TO LATE FEBRUARY).

2. USE LIVE, HEALTHY, AND STRAIGHT WOOD STAKES. STAKES SHOULDBE BETWEEN 2 AND 3 FEET LONG AND 12 INCH TO 11

2 INCH INDIAMETER.

3. MAKE CLEAN CUTS. TOP CUTS SHOULD BE SQUARE CUT AND THEBASAL END SHOULD BE POINTED OR ANGLED.

4. LIVE STAKES ARE TO BE INSTALLED THROUGH THE EROSIONCONTROL MAT ALONG THE RESTORED CHANNEL AS INDICATED ONTHIS SHEET. TWO ROWS OF LIVE STAKES WILL BE INSTALLED ALONGTHE RESTORED CHANNELS ON 3-FOOT CENTERS STARTING ATSIX-INCHES ABOVE THE TOE OF SLOPE IN THE STREAM CHANNEL.THE SECOND ROW OF LIVESTAKES SHALL BE APPROXIMATELY 6 TO12 INCHES ABOVE THE FIRST ROW AND STAGGERED FROM THE FIRSTROW.

5. STAKES SHOULD BE INSTALLED UP TO 75% TO 80% OF ITS LENGTHINTO THE GROUND. BE CAREFUL NOT TO DAMAGE STAKES OR SPLITENDS DURING INSTALLATION. (MAKE A PILOT HOLE IN FIRM SOILSPRIOR TO PLANTING STAKES.) IF DAMAGED DURING INSTALLATION,THE TOP END OF THE LIVE STAKES SHOULD BE CUT FLAT.

6. SOAK STAKES IN WATER FOR A MINIMUM OF 24 HOURS PRIOR TOINSTALLATION.

7. TAMP THE SOIL AROUND THE INSTALLED STAKE.

BASAL END CUT AT ANGLEFOR EASY INSERTION INTOSOIL WITH WOOD ORRUBBER MALLET

75-8

0% O

F ST

AKE

IN G

ROUND

810

SOURCE: KENTUCKY CONSTRUCTION SITE BMPPLANNING AND TECHNICAL SPECIFICATIONS MANUAL.

PROPOSED EARTHENBERM

PROPOSEDVEGETATED OUTLET

496.5

499498497

498

499

500

499

CP5NORTHING: 1136294.93'EASTING: 324158.84'ELEVATION: 503.08'

FORMER FIFTH STREET

EXISTINGWETLAND(DO NOTDISTURB)

497

497

496.5

496.5

497

496.5

497

497498

500

505

497

498

499

501

502

503

504

500

505

499

499

499

499

501

502503

504

498

499

PROPOSED WETLANDESTABLISHMENT AREA

PLA

NTI

NG

PLA

N

0

SCALE IN FEET

301530

LEN

TZ A

VEN

UE

STR

EA

M A

ND

WE

TLA

ND

MIT

IGA

TIO

N P

RO

JEC

TC

LAR

K C

OU

NTY

, IN

DIA

NA

DRAFT SUBMITTAL / NOT FOR CONSTRUCTION

12

RIV

ER

RID

GE

DE

VELO

PM

EN

T A

UTH

OR

ITY

6200

EA

ST

HIG

HW

AY

62B

UIL

DIN

G 2

501,

SU

ITE

600

JEFF

ER

SO

NVI

LLE

, IN

DIA

NA

471

30

10

10

STREAM AND WETLAND MITIGATION PLANTING NOTES:

1. THE PROPOSED RIPARIAN AND WETLAND PLANTING ACTIVITIES SHALL BE CONDUCTED IN ACCORDANCE WITH THE PROVIDEDPLANS AND SPECIFICATIONS AND DETAILS ON THIS SHEET.

2. ONCE REACHING FINAL GRADES ALONG THE MITIGATED STREAM, WETLAND, AND THE ADJACENT CORRESPONDING RIPARIANAREAS, LOOSEN THE TOP LAYER OF SOIL FOR SEEDBED PREPARATION.

3. SEED ALL DISTURBED GROUND SURFACES WITHIN THE STREAM MITIGATION SITE FROM THE TOE OF SLOPE IN THE CHANNEL TOEXTENT OF SITE DISTURBANCES AND DISTURBED AREAS OUTSIDE OF THE EMERGENT WETLAND AREA WITHIN THE WETLANDMITIGATION SITE ACCORDING TO TABLE 1 ON THIS SHEET AT A RATE OF 40 POUNDS PER ACRE. SEED THE PROPOSEDEMERGENT WETLAND PLANTING ZONE WITH THE WETLAND GROUNDCOVER SEEDING LIST, PROVIDED IN TABLE 4 OF THISSHEET, AT A RATE OF 40 POUNDS PER ACRE.

4. AFTER SEEDING IS COMPLETE, COVER DISTURBED GROUND SURFACES WITH CLEAN STRAW MULCH AT A RATE OF TWO TONSPER ACRE, AND ANCHOR THE STRAW MULCH WITH A STRAW CRIMPER OR OTHER APPROVED, APPROPRIATE ANCHORINGMETHOD.

5. INSTALL THE SPECIFIED STREAM CHANNEL EROSION CONTROL MAT (BIOD-MAT 70 OR APPROVED EQUIVALENT) FROM THE TOEOF SLOPE INSIDE THE STREAM CHANNEL TO A MINIMUM OF FIVE FEET BEYOND THE TOP OF BANK IN ACCORDANCE WITH THEPLANS AND DETAIL 29.

6. ONCE SEEDING AND STRAW MULCHING OF THE STREAM AND WETLAND MITIGATION AREAS ARE COMPLETED, REDRESS ALLCONSTRUCTION ACCESS AREAS AND SEED WITH NATIVE HERBACEOUS PLANTING ZONE SEED MIX AT 40 POUNDS PER ACREAND THEN COVER WITH CLEAN STRAW MULCH AT A RATE OF TWO TONS PER ACRE. ANCHOR STRAW MULCH WITH STRAWCRIMPER OR OTHER APPROVED APPROPRIATE ANCHORING METHOD.

7. ONCE SEEDING AND STRAW MULCHING ARE COMPLETE AND IN THE FIRST APPROPRIATE SEASON (EARLY NOVEMBER TO LATEFEBRUARY), NATIVE 3-GALLON RPM TREES FROM TABLE 2 ON THIS SHEET WILL BE PLANTED WITHIN THE PROPOSED STREAMRIPARIAN PLANTING ZONE IN ACCORDANCE WITH THE PLANS AND DETAIL 6

10. THE FIRST ROW OF TREES WILL BE PLANTED ON15-FOOT CENTERS WITHIN FIVE FEET OF THE TOP OF THE RESTORED STREAMBANK. ADDITIONAL ROWS OF NATIVE TREES WILLBE PLANTED STARTING AT 10 FEET, 25 FEET, AND 40 FEET BEYOND THE TOP OF EACH STREAMBANK ON 15-FOOT CENTERS ANDSTAGGERED FROM THE PREVIOUS ROW. THE PLANTED TREES SHALL BE FERTILIZED WITH ONE TABLESPOON PER TREE/SHRUBOF 27-3-6 FERTILIZER WITH IBDU.

8. IN THE FIRST APPROPRIATE SEASON (EARLY DECEMBER TO LATE FEBRUARY) FOLLOWING COMPLETION OF THE STREAMMITIGATION ACTIVITIES THE LIVE STAKES FROM TABLE 3 SHALL BE INSTALLED IN ACCORDANCE WITH THE PLANS AND DETAILS 8

10.TWO ROWS OF LIVE STAKES SHALL BE INSTALLED ON 3-FOOT CENTERS, WITH FIRST ROW STARTING AT SIX-INCHES ABOVE THETOE OF SLOPE OF THE RESTORED STREAM CHANNEL AND THE SECOND ROW BEING SIX TO TWELVE INCHES ABOVE THE FIRSTROW AND STAGGERED FROM THE FIRST ROW.

9. ALL PLANTED TREES AND LIVE STAKES WITHIN THE PROJECT AREA SHALL BE WATERED PERIODICALLY AS NEEDED TO PREVENTPLANT MATERIALS FROM BECOMING TOO DRY. THE CONTRACTOR SHALL PROVIDE WATER SERVICES AS NEEDED UNTIL THEPLANTS ENTER DORMANCY FOR THE FIRST TIME.

610

PROPOSED STREAM RIPARIAN PLANTING ZONE

PROPOSED LIVE STAKING

PROPOSED NATIVE HERBACEOUS PLANTING ZONE

STREAM MITIGATION SITEWETLAND MITIGATION SITE

LIMITS OF DISTURBANCE (1.31 ACRES)PROJECT BOUNDARY

EXISTING INTERMITTENT STREAM(TO BE RE-ESTABLISHED)

PROPOSED INTERMITTENT STREAMBANKS

PROPOSED INTERMITTENT THALWEG

PROPOSED RIFFLE

PROPOSED BOULDER J-HOOK

EXISTING INTERMITTENT STREAM(NO ACTION)

EXISTING REHABILITATEDINTERMITTENT STREAMBANKS

EXISTING RIFFLE

EXISTING BOULDER CROSS VANE

EXISTING ONE-FOOT CONTOURS

EXISTING SEWER LINE/EASEMENT

LEGEND

PROPOSED EMERGENT WETLAND PLANTING AREAEXISTING EMERGENT WETLAND (DO NOT DISTURB)

PROPOSED ONE-FOOT CONTOURS

EXISTING WATER MAIN

EXISTING FENCE - TO BE REMOVEDLIMITS OF GRADING

NOTES:1. THIS DRAWING HAS BEEN PREPARED IN PART BY UTILIZING INFORMATION PROVIDED BY OTHERS. THE ENGINEER HAS

NOT VERIFIED THE ACCURACY AND/OR COMPLETENESS OF THIS INFORMATION AND SHALL NOT BE RESPONSIBLE FORANY ERRORS OR OMISSIONS THAT MAY BE INCORPORATED AS A RESULT OF ERRONEOUS INFORMATION PROVIDED BYOTHERS.

2. THE INFORMATION SHOWN ON THIS DRAWING CONCERNING TYPE AND LOCATION OF UNDERGROUND UTILITIES IS NOTGUARANTEED TO BE ACCURATE OR ALL INCLUSIVE. CONTRACTOR IS RESPONSIBLE TO VERIFY THE LOCATION, SIZE,AND MATERIAL OF ALL EXISTING UTILITIES IN THE PROJECT AREA. INDIANA811 CALL CENTER MUST BE CONTACTED AMINIMUM OF TWO BUSINESS DAYS PRIOR TO ANY EXCAVATION FOR VERIFICATION OF LOCATION, SIZE AND MATERIALOF UNDERGROUND UTILITIES. CALL 811 OR 1-800-382-5544.

3. JURISDICTIONAL WATER/WETLAND BOUNDARIES WERE DELINEATED AND SURVEYED BY REDWING WETLAND SCIENTISTSON MAY 26, JULY 12 AND 24, 2017 AND JUNE 6, 2018. THESE BOUNDARIES HAVE BEEN VERIFIED BY THE U.S. ARMYCORPS OF ENGINEERS.

SOURCE: TOPOGRAPHIC BASEMAP FROM SURVEY CONDUCTED BY REDWING ECOLOGICAL SERVICES ON OCTOBER 24, 2007

810

PROPOSED WETLAND RIPARIAN PLANTING AREA

EXISTING PERENNIAL STREAM

EXISTING DECOMMISSIONED SANITARY SEWER

MIN.6"

150' MIN.

14' to 24'

COARSE AGGREGATE

EXISTING ROAD

INDOT CA NO. 26" MINIMUM DEPTH

UNDERLINING GEOTEXTILE FABRIC

PROVIDE POSITIVE DRAINAGE.THE ENTRANCE WHEN NEEDED TOINSTALL A CULVERT PIPE ACROSS

STABILIZED CONSTRUCTION ENTRANCE

1. REMOVE ALL VEGETATION AND ANY OBJECTIONABLE MATERIAL FROM THE FOUNDATION AREA.

2. INSTALL A GEOTEXTILE FABRIC PRIOR TO PLACING ANY STONE.

3. INSTALL A CULVERT PIPE ACROSS THE ENTRANCE WHEN NEEDED TO PROVIDE POSITIVE DRAINAGE.

4. THE ENTRANCE SHALL CONSIST OF INDOT CA NO. 2 AGGREGATE WITH A MINIMUM THICKNESS OF 6-INCHES.

5. MINIMUM WIDTH IS 14-FEET FOR ONE-WAY TRAFFIC AND 24-FEET FOR TWO-WAY TRAFFIC. MINIMUM LENGTH IS 150-FEET.

6. ROADWAY SHALL FOLLOW THE CONTOUR OF THE NATURAL TERRAIN TO THE EXTENT POSSIBLE.

IF NEEDED

NOTES:

ELEVATION

FABRIC ANCHOR DETAIL

MIN

4-6"

COMPACTED BACKFILL

UNDISTURBED GROUND LINEDIRECTION OF FLOW

MIN6-8"

FILTER FABRIC

FILTER FABRIC

(TYP)18" MIN

(TYP)

18"-24"

5' MAX

SILT FENCE

FILTER FABRIC

POSTS

2" WIDE LATH

ATTACH LATH WITH 1-1/2" STAPLES

1. TEMPORARY SILT FENCE SHALL BE INSTALLED, AS NEEDED, PRIOR TOANY GRADING WORK IN THE PROPOSED CONSTRUCTION AREAS. THEYSHALL BE MAINTAINED THROUGHOUT THE CONSTRUCTION PERIODAND REMOVED ONCE THE CONSTRUCTION AREAS ARE STABILIZED.SILT FENCE SHOULD BE INSTALLED ALONG THE CONTOURS (UNIFORMELEVATION) AND PERPENDICULAR TO DIRECTION OF FLOW WITH ENDSOF SILT FENCE TURNED UPSLOPE AS SHOWN IN ADJACENT DETAIL.

2. A FLAT BOTTOMED TRENCH APPROXIMATELY 4 TO 6-INCHES WIDE AND6 TO 8-INCHES DEEP, OR A V-SHAPED TRENCH 6 TO 8-INCHES DEEPSHOULD BE EXCAVATED. ON THE DOWNSLOPE SIDE OF THE TRENCH,DRIVE THE 2-INCH BY 2-INCH WOOD POSTS A MINIMUM OF 18-INCHESINTO THE GROUND SPACING THEM NO MORE THAN 5-FEET APART.

3. POSTS SHOULD BE INSTALLED WITH 1 TO 2-INCHES OF THE POSTPROTRUDING ABOVE THE FILTER FABRIC WITH THE HEIGHT OF THEFILTER FABRIC RANGING FROM 18 TO 24-INCHES ABOVE GRADE.

4. FILTER FABRIC SHOULD BE PURCHASED IN A CONTINUOUS ROLL ANDCUT TO LENGTH NEEDED TO MINIMIZE USE OF JOINTS. IF JOINTS AREREQUIRED, FILTER FABRIC SHOULD BE WRAPPED TOGETHER ONLY ATSUPPORT POST WITH BOTH ENDS SECURELY FASTENED TO THE POST,WITH A MINIMUM OF 6-INCH OVERLAP.

5. EXTRA STRENGTH FILTER FABRIC (50 POUNDS/LINEAR INCH MINIMUMTENSILE STRENGTH) SHOULD BE USED. A 2-INCH WIDE LATHE SHALLBE STAPLED OVER THE FILTER FABRIC TO SECURE IT TO THE UPSLOPESIDE OF THE POSTS. STAPLES USED TO SECURE LATH AND FILTERFABRIC TO THE POST SHOULD BE 1.5-INCH HEAVY DUTY WIRE STAPLESSPACED A MAXIMUM OF 8-INCHES APART.

6. PLACE THE BOTTOM 12-INCHES OF FILTER FABRIC IN THE 6 TO 8-INCHDEEP TRENCH, EXTENDING THE REMAINING 4 TO 6-INCHES OF FILTERFABRIC TOWARDS THE UP-SLOPE SIDE OF THE TRENCH. THENBACKFILL THE TRENCH WITH SOIL AND COMPACT.

NOTES:

HARDWOOD2"x2"

515

510

505

500

END TURNED UPHILL

LAYOUT

DIREC

TION

OF FLO

W

CONTOURS

SILT FENCE

495

FORMER FIFTH STREET

PROPOSED INTERMITTENT STREAM 1RE-ESTABLISHMENT REACH

EXISTINGREHABILITATEDINTERMITTENTSTREAM 1

JACOBS WAY

SF2SF1

SCE

491

491

491

490

490

490 489

491

491

490

491

492492

491

49249

1

489

493494495

490

491

EXISTING BOULDER STOCKPILE

PROPOSEDEARTHENBERM

PROPOSEDVEGETATED OUTLET

496.5

499498497

498499

500

499

CP5NORTHING: 1136294.93'EASTING: 324158.84'ELEVATION: 503.08'

FORMER FIFTH STREET

SF3

SF4

SF5

EXISTINGWETLAND(DO NOTDISTURB)

497

497

496.5

496.5

497496.5

497

497498

500

505

497

498

499

501

502

503504

500

505

499

499

499

499

501

502503

504

498

499

PROPOSEDWETLANDESTABLISHMENTAREA

1.

12"

6"

3.

4.

5.

4"

2.

NOTES:

1. PREPARE SOIL BEFORE INSTALLING ROLLED EROSION CONTROL PRODUCTS (RECP'S), INCLUDINGANY NECESSARY APPLICATION OF SEED MIX. BIONET SC150BN OR APPROVED EQUIVALENT SHALLBE USED. NOTE: WHEN USING CELL-O-SEED DO NOT SEED PREPARED AREA. CELL-O-SEED MUSTBE INSTALLED WITH PAPER SIDE DOWN.

2. BEGIN AT THE TOP OF THE SLOPE BY ANCHORING THE RECP'S IN A 6" (15 CM) DEEP X 6" (15 CM)WIDE TRENCH WITH APPROXIMATELY 12" (30 CM) OF RECP'S EXTENDED BEYOND THE UP-SLOPEPORTION OF THE TRENCH (DETAIL 2). ANCHOR THE RECP'S WITH A ROW OF STAPLES/STAKESAPPROXIMATELY 12" (30 CM) APART IN THE BOTTOM OF THE TRENCH. BACKFILL AND COMPACT THETRENCH AFTER STAPLING. APPLY SEED TO COMPACTED SOIL AND FOLD REMAINING 12" (30 CM)PORTION OF RECP'S BACK OVER SEED AND COMPACTED SOIL. SECURE RECP'S OVER COMPACTEDSOIL WITH A ROW OF STAPLES/STAKES SPACED APPROXIMATELY 12" (30 CM) APART ACROSS THEWIDTH OF THE RECP'S.

3. ROLL THE RECP'S DOWN THE SLOPE (DETAIL 3). RECP'S WILL UNROLL WITH APPROPRIATE SIDEAGAINST THE SOIL SURFACE. ALL RECP'S MUST BE SECURELY FASTENED TO SOIL SURFACE BYPLACING STAPLES/STAKES IN APPROPRIATE LOCATIONS AS SHOWN IN THE STAPLE PATTERN GUIDE.WHEN USING THE DOT SYSTEM, STAPLES/STAKES SHOULD BE PLACED THROUGH EACH OF THECOLORED DOTS CORRESPONDING TO THE APPROPRIATE STAPLE PATTERN.

4. THE EDGES OF PARALLEL RECP'S MUST BE STAPLED WITH APPROXIMATELY 2" - 5" (5 CM - 12.5 CM)OVERLAP DEPENDING ON RECP'S TYPE (DETAIL 4).

5. CONSECUTIVE RECP'S SPLICED DOWN THE SLOPE MUST BE PLACED END OVER END (SHINGLESTYLE) WITH AN APPROXIMATE 4" (10 CM) OVERLAP (DETAIL 5). STAPLE THROUGH OVERLAPPEDAREA, APPROXIMATELY 12" (30 CM) APART ACROSS ENTIRE RECP'S WIDTH. NOTE: *IN LOOSE SOILCONDITIONS, THE USE OF STAPLE OR STAKE LENGTHS GREATER THAN 6" (15 CM) MAY BENECESSARY TO PROPERLY SECURE THE RECP'S.

6. SHALL BE USED ON ALL SLOPES 3H:1V OR STEEPER.

SOURCE: ORIGINAL PLAN DETAIL PROVIDED BY NORTH AMERICAN GREEN EROSION CONTROLPRODUCTS

STEEP SLOPES EROSION CONTROL BLANKET

2"-5"

6"

911

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DRAFT SUBMITTAL / NOT FOR CONSTRUCTION

12

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11

11

EPSC PLAN GENERAL NOTES:

GENERAL EROSION PREVENTION AND SEDIMENT CONTROL NOTES:

A. THE EROSION PREVENTION AND SEDIMENT CONTROL (EPSC) PLAN SHALL BE IMPLEMENTED PRIOR TO ANY LAND-DISTURBING ACTIVITY ON THE CONSTRUCTION SITE. ANY MODIFICATIONS TO THE APPROVED EPSCPLAN MUST BE REVIEWED AND APPROVED BY ENGINEER. EPSC BEST MANAGEMENT PRACTICES (BMPS) SHALL BE INSTALLED AND MAINTAINED PER THE PLAN.

B. DETENTION BASINS, IF APPLICABLE, SHALL BE CONSTRUCTED FIRST AND SHALL PERFORM AS SEDIMENT BASINS DURING CONSTRUCTION UNTIL THE CONTRIBUTING DRAINAGE AREAS ARE SEEDED AND STABILIZED.

C. ACTIONS MUST BE TAKEN TO MINIMIZE THE TRACKING OF MUD AND SOIL FROM THE CONSTRUCTION AREAS ONTO PUBLIC ROADWAYS. SOIL TRACKED ONTO THE ROADWAY SHALL BE REMOVED DAILY.

D. SOIL STOCKPILES SHALL BE LOCATED AWAY FROM STREAMS, PONDS, SWALES, AND CATCH BASINS. STOCKPILES SHALL BE SEEDED, MULCHED, AND ADEQUATELY CONTAINED THROUGH THE USE OF SILT FENCE.

E. ALL WET STREAM CROSSINGS MUST UTILIZE AN APPROPRIATE LOW-WATER CROSSING STRUCTURE.

F. SEDIMENT-LADEN GROUNDWATER ENCOUNTERED DURING TRENCHING, BORING, OR OTHER EXCAVATION ACTIVITIES SHALL BE PUMPED TO A SEDIMENT TRAPPING DEVICE PRIOR TO BEING DISCHARGED INTO ASTREAM, POND, SWALE, OR CATCH BASIN.

G. SEED AND STRAW MULCH ALL DISTURBED AREAS AFTER COMPLETION OF ALL MITIGATION ACTIVITIES IN ACCORDANCE WITH THE PROPOSED PLANTING PLAN (SHEET 10) AND THE EPSC PLAN. CONTRACTOR SHALLONLY PERFORM MITIGATION ACTIVITIES ON A SECTION OF THE SITE THAT CAN BE ENTIRELY COMPLETED PRIOR TO THE LIKELIHOOD OF RAIN OCCURRENCES. CONTRACTOR SHALL NOT EXCEED THREE DAYS BEFORESEEDING, MULCHING, AND MATTING DISTURBED AREAS. SHOULD THE CHANCE OF RAIN BE PRESENT, THE CONTRACTOR WILL SEED, MULCH, AND MAT DISTURBED AREAS MORE FREQUENTLY.

H. WHERE CONSTRUCTION OR LAND-DISTURBING ACTIVITY WILL OR HAS TEMPORARILY CEASED ON ANY PORTION OF A SITE, TEMPORARY SITE STABILIZATION MEASURES SHALL BE REQUIRED AS SOON AS PRACTICABLE,BUT NO LATER THAN 14 CALENDAR DAYS AFTER ACTIVITY HAS CEASED.

EPSC PLAN PHASING:

ALL EPSC BMPS SHALL BE INSTALLED, INSPECTED, AND MAINTAINED PER THE PLAN. THE EPSC INSTALLATION PHASING IS AS FOLLOWS:

1. PRIOR TO COMMENCING MITIGATION ACTIVITIES, THE STABILIZED CONSTRUCTION ENTRANCE (SCE) SHALL BE INSTALLED. THE STABILIZED CONSTRUCTION ENTRANCE SHALL BE INSTALLED, INSPECTED, ANDMAINTAINED IN ACCORDANCE WITH STANDARD DRAWING AND SPECIFICATIONS (DETAIL 10

11) AND THE SWPPP (SHEET 12). ANY DIRT OR MUD TRACKED ON TO PUBLIC ROADWAYS ADJACENT TO THE PROJECT SITE SHALLBE CLEANED UP DAILY.

2. PRIOR TO ANY LAND-DISTURBING ACTIVITIES WITHIN THE STREAM AND WETLAND MITIGATION AREAS, SILT FENCING 1 AND 2 (SF1 AND SF2) AND SF3 THROUGH SF5, RESPECTIVELY, SHALL BE INSTALLED, INSPECTED,AND MAINTAINED PER THE PLAN, DETAIL 11

11, AND THE SWPPP (SHEET 12).

3. ANY TEMPORARY SOIL STOCKPILES CREATED AS PART OF THE CONSTRUCTION PROJECT SHALL BE PROPERLY PROTECTED AGAINST SOIL EROSION BY SILT FENCING, TEMPORARY SEED, AND MULCH PER THE PLAN.

4. THE CONSTRUCTION ACTIVITIES SHALL BE CONDUCTED TO MINIMIZE THE EXTENT OF DISTURBED SOILS EXPOSED AT ANY ONE TIME AND THE LENGTH OF SOIL EXPOSURE. THE CONTRACTOR SHALL ONLY PERFORMCONSTRUCTION ACTIVITIES ON A SECTION OF STREAM OR WETLAND THAT CAN BE COMPLETED PRIOR TO THE LIKELIHOOD OF RAIN OCCURRENCES. CONTRACTOR SHALL NOT EXCEED THREE DAYS BEFORE SEEDINGAND STRAW MULCHING DISTURBED AREAS. SHOULD THE CHANCED OF RAIN BE PRESENT, THE CONTRACTOR SHALL SEED AND STRAW MULCH MORE FREQUENTLY.

5. ONCE THE EPSC MEASURES ARE INSTALLED, THE CONTRACTOR MAY BEGIN EXCAVATING THE PROPOSED EMERGENT WETLAND. THE CONTRACTOR SHALL FIRST STRIP THE TOP SOIL FOR LATER PLACEMENT WITHINTHE WETLAND AREA.

6. THE CONTRACTOR WILL THEN BEGIN TO EXCAVATE THE WETLAND AREA UTILIZING THE FIRST EXCAVATED MATERIAL TO CONSTRUCT THE EARTHEN BERM IN THE WESTERN PART OF THE SITE. ONCE THE BERM ISCONSTRUCTED, THE TOP, OUTLET, AND WESTERN FACE OF THE BERM WILL BE SEEDED WITH THE WETLAND RIPARIAN SEED AND COVERED WITH SC150BN EROSION CONTROL BLANKET IN ACCORDANCE WITH DETAIL911.

7. AFTER THE EARTHEN BERM IS CONSTRUCTED AND STABILIZED THE CONTRACTOR CAN EXCAVATE THE REMAINING SOILS FOR THE PROPOSED EMERGENT WETLAND AREA. THE EARTHEN BERM WILL FUNCTION AS ASEDIMENT TRAP TO HELP FILTER ANY COLLECTED SEDIMENT-LADEN WATER FROM THE SITE. SEDIMENT-LADEN WATER SHALL BE PUMPED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE (DETAIL 59 OR ANAPPROVED EQUIVALENT).

8. THE CONTRACTOR SHALL NOT CONDUCT ANY STREAM CONSTRUCTION ACTIVITIES IN FLOWING WATER. THE CONTRACTOR SHALL ESTABLISH AND MAINTAIN FLOW DIVERSION INCLUDING A PUMP AROUND SYSTEM ASSHOWN IN DETAIL 39. ANY COLLECTED SEDIMENT-LADEN WATER SHALL BE PUMPED THROUGH A SEDIMENT FILTERING DEVICE SUCH AS A FILTER BAG PROVIDED AS DETAIL 59.

9. ALL DISTURBED SOILS WILL BE GRADED AND STABILIZED AS SOON AS POSSIBLE. PERMANENT STABILIZATION WILL OCCUR WITHIN THREE DAYS OF REACHING FINAL GRADE PER THE PLANTING PLAN (SHEET 10).WHERE CONSTRUCTION OR LAND-DISTURBING ACTIVITY WILL OR HAS TEMPORARILY CEASED ON ANY PORTION OF THE SITE, TEMPORARY SITE STABILIZATION MEASURES SHALL BE REQUIRED AS SOON AS PRACTICAL,BUT NO LATER THAN 14 CALENDAR DAYS AFTER THE ACTIVITY HAS CEASED PER THE PLAN.

10.THROUGHOUT THE CONSTRUCTION ACTIVITIES THE CONTRACTOR SHALL INSTALL ADDITIONAL EROSION CONTROL PRACTICES NOT SHOWN ON THESE PLANS AS NECESSARY TO CONTROL SEDIMENT.

11.ONCE CONSTRUCTION HAS BEEN COMPLETED AND THE SITE STABILIZED IN ACCORDANCE WITH THESE PLANS AND APPROVED BY RIVER RIDGE DEVELOPMENT AUTHORITY AND THE ENGINEER. THE CONTRACTORSHALL REMOVE ALL EPSC MEASURES AND STABILIZE ALL AREAS DISTURBED BY EPSC MEASURES.

1111

1011

0

SCALE IN FEET

STREAM MITIGATION SITEWETLAND MITIGATION SITE

40 20 40

CONTRACTOR STAGING AREASTABILIZED CONSTRUCTION ENTRANCE (SCE)

SILT FENCE (SF)

LIMITS OF DISTURBANCE (1.31 ACRES)PROJECT BOUNDARY

EXISTING INTERMITTENT STREAM(TO BE RE-ESTABLISHED)

PROPOSED INTERMITTENT STREAMBANKS

PROPOSED INTERMITTENT THALWEG

PROPOSED RIFFLE

PROPOSED BOULDER J-HOOK

EXISTING INTERMITTENT STREAM(NO ACTION)

EXISTING REHABILITATEDINTERMITTENT STREAMBANKS

EXISTING RIFFLE

EXISTING BOULDER CROSS VANE

EXISTING ONE-FOOT CONTOURS

EXISTING SEWER LINE/EASEMENT

LEGEND

PROPOSED EMERGENT WETLAND (0.28 ACRE)

EXISTING EMERGENT WETLAND

PROPOSED ONE-FOOT CONTOURS

EXISTING WATER MAIN

OVERLAND FLOW DIRECTION

EXISTING FENCE - TO BE REMOVED

LIMITS OF GRADING

SOURCE: TOPOGRAPHIC BASEMAP FROM SURVEY CONDUCTED BY REDWING ECOLOGICAL SERVICES ON OCTOBER 24, 2007

NOTES:1. THIS DRAWING HAS BEEN PREPARED IN PART BY UTILIZING INFORMATION PROVIDED BY OTHERS. THE ENGINEER HAS NOT VERIFIED THE ACCURACY AND/OR

COMPLETENESS OF THIS INFORMATION AND SHALL NOT BE RESPONSIBLE FOR ANY ERRORS OR OMISSIONS THAT MAY BE INCORPORATED AS A RESULT OFERRONEOUS INFORMATION PROVIDED BY OTHERS.

2. THE INFORMATION SHOWN ON THIS DRAWING CONCERNING TYPE AND LOCATION OF UNDERGROUND UTILITIES IS NOT GUARANTEED TO BE ACCURATE OR ALLINCLUSIVE. CONTRACTOR IS RESPONSIBLE TO VERIFY THE LOCATION, SIZE, AND MATERIAL OF ALL EXISTING UTILITIES IN THE PROJECT AREA. INDIANA811 CALLCENTER MUST BE CONTACTED A MINIMUM OF TWO BUSINESS DAYS PRIOR TO ANY EXCAVATION FOR VERIFICATION OF LOCATION, SIZE AND MATERIAL OFUNDERGROUND UTILITIES. CALL 811 OR 1-800-382-5544.

3. JURISDICTIONAL WATER/WETLAND BOUNDARIES WERE DELINEATED AND SURVEYED BY REDWING WETLAND SCIENTISTS ON MAY 26, JULY 12 AND 24, 2017 ANDJUNE 6, 2018. THESE BOUNDARIES HAVE BEEN VERIFIED BY THE U.S. ARMY CORPS OF ENGINEERS.

EXISTING PERENNIAL STREAM

EXISTING DECOMMISSIONED SANITARY SEWER

STO

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DRAFT SUBMITTAL / NOT FOR CONSTRUCTION

12

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6200

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G 2

501,

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600

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471

30

12

12

A1 RULE 5 CONSTRUCTION PLAN INDEX THIS SHEET

A2 11 BY 17 INCH PLAT SHOWING BUILDING LOT NUMBERS/BOUNDARIES AND ROAD LAYOUT/NAMES FIGURE 1 - ATTACHED

A3 PROJECT START/END DATES THIS SHEET

A4 NARRATIVE DESCRIBING NATURE AND PURPOSE THIS SHEET

A5 VICINITY MAP SHOWING PROJECT LOCATION SHEET 1

A6 LEGAL DESCRIPTION OF THE PROJECT SITE THIS SHEET

A7 LOCATION OF ALL LOTS AND PROPOSED SITE IMPROVEMENTS THIS SHEET AND SHEETS 1 THROUGH 11

A8 HYDRAULIC UNIT CODE (14 DIGIT) THIS SHEET

A9 NOTATION OF ANY STATE OR FEDERAL WATER PERMITS THIS SHEET

A10 SPECIFIC POINTS WHERE STORMWATER DISCHARGE WILL LEAVE THE SITE THIS SHEET AND SHEET 11

A11 LOCATIONS AND NAME OF ALL WETLANDS, LAKES, AND WATERCOURSES ON AND ADJACENT TO THE SITE THIS SHEET AND SHEETS 2, 3, 5, 10, AND 11

A12 IDENTIFICATION OF ALL RECEIVING WATERS THIS SHEET AND SHEET 11

A13 IDENTIFICATION OF POTENTIAL DISCHARGES TO GROUNDWATER THIS SHEET

A14 100 YEAR FLOODPLAINS, FLOODWAYS, AND FLOODWAY FRINGES THIS SHEET

A15 PRE-CONSTRUCTION AND POST-CONSTRUCTION ESTIMATES OF PEAK DISCHARGE (10-YEAR STORM EVENT) THIS SHEET

A16 ADJACENT LAND USE, INCLUDING UPSTREAM WATERSHED THIS SHEET AND SHEET 1

A17 LOCATIONS AND APPROXIMATE BOUNDARIES OF ALL DISTURBED AREAS THIS SHEET AND SHEETS 2, 3, 5, 10, AND 11

A18 IDENTIFICATION OF EXISTING VEGETATIVE COVER THIS SHEET AND SHEET 1

A19 SOILS MAP INCLUDING SOIL DESCRIPTIONS AND LIMITATIONS THIS SHEET

A20 LOCATIONS, SIZE, AND DIMENSIONS OF PROPOSED STORMWATER SYSTEMS THIS SHEET AND SHEETS 2 THROUGH 8

A21 PLANS FOR ANY OFF-SITE CONSTRUCTION ACTIVITIES ASSOCIATED WITH THIS PROJECT THIS SHEET

A22 LOCATIONS OF PROPOSED STOCKPILES AND/OR BORROW/DISPOSAL AREAS SHEETS 2, 10, AND 11

A23 EXISTING SITE TOPOGRAPHY AT AN INTERVAL APPROPRIATE TO INDICATED DRAINAGE PATTERNS SHEETS 2, 3, 5, 10, AND 11

A24 PROPOSED FINAL TOPOGRAPHY AT AN INTERVAL APPROPRIATE TO INDICATE DRAINAGE PATTERNS SHEETS 3 AND 5

B. STORMWATER POLLUTION PREVENTION PLANB1 DESCRIPTION OF POTENTIAL POLLUTANT SOURCES ASSOCIATED WITH CONSTRUCTION ACTIVITIES THIS SHEET

B2 SEQUENCE OF POTENTIAL STORMWATER QUALITY MEASURES IMPLEMENTED RELATIVE TO LAND DISTURBING ACTIVITIES SHEETS 2 AND 11

B3 STABLE CONSTRUCTION ENTRANCE LOCATIONS AND SPECIFICATIONS SHEET 11

B4 SEDIMENT CONTROL MEASURES FOR SHEET FLOW AREAS THIS SHEET AND SHEET 11

B5 SEDIMENT CONTROL MEASURES FOR CONCENTRATED FLOW THIS SHEET AND SHEET 11

B6 STORM SEWER INLET PROTECTION MEASURE LOCATION AND SPECIFICATION THIS SHEET

B7 RUNOFF CONTROL MEASURES THIS SHEET AND SHEET 11

B8 STORMWATER OUTLET PROTECTION SPECIFICATIONS THIS SHEET

B9 GRADE STABILIZATION STRUCTURE LOCATIONS AND SPECIFICATIONS THIS SHEET

B10 LOCATION, DIMENSIONS, SPECIFICATION, AND CONSTRUCTION DETAILS OF EACH STORMWATER QUALITY MEASURE SHEET 11

B11 TEMPORARY SURFACE STABILIZATION METHODS APPROPRIATE FOR EACH SEASON THIS SHEET

B12 PERMANENT SURFACE STABILIZATION SPECIFICATIONS THIS SHEET AND SHEET 10

B13 MATERIAL HANDLING AND SPILL PREVENTION THIS SHEET

B14 MONITORING AND MAINTENANCE GUIDELINES FOR POLLUTION PREVENTION MEASURES THIS SHEET AND SHEET 11

A. CONSTRUCTION PLAN ELEMENTSA. CONSTRUCTION PLAN ELEMENTS B. STORMWATER POLLUTION PREVENTION PLAN

C. POST CONSTRUCTION STORMWATER POLLUTION PREVENTION PLANC1 DESCRIPTION OF POLLUTANTS AND THEIR SOURCES ASSOCIATED WITH THE PROPOSED LAND USE

· POTENTIAL POST CONSTRUCTION SOURCES OF POLLUTANTS INCLUDE OIL/FUEL/GREASE FROM ADJACENT EXISTING ROADWAYS ANDTRASH/DEBRIS.

C2 SEQUENCE DESCRIBING STORM WATER QUALITY MEASURE IMPLEMENTATION· TRASH/DEBRIS WILL BE COLLECTED AND DISPOSED OF IN APPROPRIATE CONTAINERS.

C3 DESCRIPTION OF PROPOSED POST CONSTRUCTION STORM WATER QUALITY MEASURES· THE PROPERTY OWNER WILL ROUTINELY MONITOR PROPERTY FOR TRASH AND OIL, FUEL, GREASE LEAKS.· APPROPRIATE APPROVED ABSORPTION MATERIALS WILL BE USED TO CLEAN UP ANY HYDROCARBON POLLUTANTS.

C4 LOCATION, DIMENSIONS, SPECIFICATION, AND CONSTRUCTION DETAILS OF EACH STORM WATER QUALITY MEASURE· SPECIFIC POST CONSTRUCTION STORM WATER QUALITY MEASURES ARE DESCRIBED ON THIS SHEET.

C5 DESCRIPTION OF MAINTENANCE GUIDELINES FOR PROPOSED POST CONSTRUCTION WATER QUALITY MEASURES· THE PROPERTY OWNER WILL ROUTINELY MONITOR FOR TRASH AND HYDROCARBON POLLUTANTS.· ANY OBSERVED POLLUTANTS WILL BE IMMEDIATELY CLEANED UP.

B1 DESCRIPTION OF POTENTIAL POLLUTANT SOURCES ASSOCIATED WITH CONSTRUCTION ACTIVITIES· POTENTIAL SOURCES OF POLLUTANTS ASSOCIATED WITH THE CONSTRUCTION PLAN INCLUDE SEDIMENT FROM GRADING ACTIVITIES, FERTILIZER,

OIL/FUEL/GREASE FROM EQUIPMENT, SANITARY WASTE, AND TRASH/DEBRIS.

B2 SEQUENCE OF POTENTIAL STORMWATER QUALITY MEASURES IMPLEMENTED RELATIVE TO LAND DISTURBING ACTIVITIES· THE PHASING SEQUENCE TO IMPLEMENT STORM WATER QUALITY MEASURES RELATIVE TO LAND DISTURBING ACTIVITIES IS OUTLINED ON SHEET

11.

B3 STABLE CONSTRUCTION ENTRANCE LOCATIONS AND SPECIFICATIONS· ACCESS TO THE MITIGATION SITES WILL BE OBTAINED FROM THE FORMER FIFTH STREET VIA A STABILIZED CONSTRUCTION ENTRANCE OFF OF THE

NEWLY CONSTRUCTED JACOBS WAY AS SHOWN ON THE EPSC PLAN AND AS DESCRIBED IN THE EPSC DETAILS (SHEET 11).

B4 SEDIMENT CONTROL MEASURES FOR SHEET FLOW AREAS· SILT FENCE WILL BE INSTALLED AT SPECIFIC LOCATIONS ALONG THE HAUL ROUTE AND PROPOSED CONSTRUCTION STAGING AREAS AS SHOWN

ON SHEET 11.

B5 SEDIMENT CONTROL MEASURES FOR CONCENTRATED FLOW· THE PROPOSED STREAM AND WETLAND MITIGATION ACTIVITIES WILL BE CONDUCTED DURING DRY AND LOW-FLOW CONDITIONS. IF FLOW IS

PRESENT WITHIN THE PROPOSED WORK AREA AT THE TIME OF CONSTRUCTION, THE WORK AREA WILL BE ISOLATED FROM FLOWS UTILIZING APUMP AROUND SYSTEM AS DESCRIBED IN THE EPSC PLAN (SHEET 11) AND DEPICTED IN THE DETAILS (SHEET 9). ANY SEDIMENT-LADEN WATERWILL BE PUMPED THROUGH A FILTER BAG (SHEET 9) AND ALLOWED TO FLOW THROUGH A VEGETATED FILTER STRIP.

B6 STORM SEWER INLET PROTECTION MEASURE LOCATION AND SPECIFICATION· THERE ARE NO STORM SEWER INLETS LOCATED WITHIN THE PROJECT SITE.

B7 RUNOFF CONTROL MEASURES· THE PROPOSED STREAM AND WETLAND MITIGATION ACTIVITIES WILL BE CONDUCTED DURING DRY AND LOW-FLOW CONDITIONS. IF FLOW IS

PRESENT AT THE TIME OF CONSTRUCTION, THE WORK AREA WILL BE ISOLATED FROM FLOWS UTILIZING A PUMP AROUND SYSTEM AS DESCRIBEDIN THE EPSC PLAN (SHEET 11) AND DEPICTED IN THE DETAILS (SHEET 9). ANY SEDIMENT-LADEN WATER WILL BE PUMPED THROUGH A FILTER BAGAND ALLOWED TO FLOW THROUGH A VEGETATED FILTER STRIP.

B8 STORMWATER OUTLET PROTECTION SPECIFICATIONS· THERE ARE NO PROPOSED STORMWATER OUTLETS LOCATED WITHIN THE PROPOSED PROJECT AREA.

B9 GRADE STABILIZATION STRUCTURE LOCATIONS AND SPECIFICATIONS· THE PROPOSED RIFFLES, BOULDER STRUCTURES, AND BANK GRADING ALONG INTERMITTENT STREAM 1 WILL PROVIDE LONG-TERM GRADE

STABILIZATION FOR THE ERODING STREAMBED AND BANKS. THE PROPOSED RIFFLE, BOULDER STRUCTURE, AND BANK GRADING ACTIVITIES AREPRESENTED ON SHEET 3. DETAILS FOR THE PROPOSED STRUCTURES ARE PROVIDED ON SHEET 9.

B10 LOCATION, DIMENSIONS, SPECIFICATION, AND CONSTRUCTION DETAILS OF EACH STORMWATER QUALITY MEASURE· DETAILS FOR EACH OF THE PROPOSED STORMWATER QUALITY MEASURES ARE PROVIDED IN THE EPSC PLAN AND DETAILS SHEETS (SHEETS 9 AND

11).

B11 TEMPORARY SURFACE STABILIZATION METHODS APPROPRIATE FOR EACH SEASON· SHOULD CONSTRUCTION ACTIVITIES CEASE FOR MORE THAN 14 DAYS, EXPOSED DISTURBED SOILS WILL BE STABILIZED IN ACCORDANCE WITH THE

PLANTING PLAN (SHEET 10) AND THE EPSC PLAN (SHEET 11).

B12 PERMANENT SURFACE STABILIZATION SPECIFICATIONS· FOLLOWING COMPLETION OF CONSTRUCTION ACTIVITIES, ALL DISTURBED AREAS WILL BE PERMANENTLY STABILIZED IN ACCORDANCE WITH THE

PLANTING PLAN (SHEET 10).

B13 MATERIAL HANDLING AND SPILL PREVENTION· THE CONSTRUCTION CONTRACTOR MANAGING THE PROJECT WILL ENLIST THE SERVICES OF A QUALIFIED CONTRACTOR TO ADDRESS ANY SPILLS

THAT WOULD OCCUR DURING THE CONSTRUCTION ACTIVITIES. THE FOLLOWING PROCEDURES WILL BE FOLLOWED FOR SPILL PREVENTION ANDCONTROL:

·· ALL SPILLS WILL BE CLEANED IMMEDIATELY ONCE DISCOVERED.·· SPILL KITS WILL BE PROVIDED BY THE SELECTED CONTRACTOR.·· THE SPILL CLEAN UP AREA WILL BE WELL VENTILATED AND CLEANUP PERSONNEL WILL WEAR APPROPRIATE PERSONAL PROTECTIVE

EQUIPMENT.·· SPILLS INVOLVING A TOXIC OR HAZARDOUS SUBSTANCE WILL BE IMMEDIATELY REPORTED TO IDEM'S 24-HOUR EMERGENCY RESPONSE AT

(888)233-7745.·· SPENT CLEANUP MATERIALS WILL BE REMOVED FROM THE SITE IMMEDIATELY AND DISPOSED OF PROPERLY AT AN APPROVED FACILITY.·· THE CONTRACTOR WILL DESIGNATE A SITE MANAGER RESPONSIBLE FOR THE DAY-TO-DAY CONSTRUCTION ACTIVITIES, AND A SPILL

RESPONSE CONTRACTOR WILL BE SELECTED TO BE THE PRIMARY CONTACT SHOULD A SPILL OCCUR.

B14 MONITORING AND MAINTENANCE GUIDELINES FOR POLLUTION PREVENTION MEASURES· THE MONITORING AND MAINTENANCE PROCEDURES FOR EACH OF THE PROPOSED EPSC MEASURES ARE DESCRIBED IN THE EPSC PLAN (SHEET

11) AND ARE ALSO PROVIDED BELOW.· THE FOLLOWING INSPECTION PROCEDURE WILL BE FOLLOWED THROUGHOUT THE PROJECT CONSTRUCTION ACTIVITIES:

·· ALL EPSC MEASURES WILL BE INSPECTED AT LEAST WEEKLY AND WITHIN 24 HOURS OF THE END OF A RAIN EVENT OF ONE-HALF INCH ORGREATER.

·· INSPECTION REPORTS WILL BE COMPLETED, SIGNED, DATED AND MAINTAINED BY THE CONSTRUCTION CONTRACTOR. AN APPROVEDEPSC INSPECTION REPORT FORM WILL BE PROVIDED TO THE CONTRACTOR.

·· THE EPSC INSPECTION ACTIVITIES SHALL BE COMPLETED BY THE CONSTRUCTION CONTRACTOR OR THEIR REPRESENTATIVE THAT ISKNOWLEDGEABLE IN EPSC MEASURES.

· MAINTENANCE OF ALL IMPLEMENTED BMP'S WILL BE CONDUCTED IN ACCORDANCE WITH THESE PLANS. THE MAINTENANCE PRACTICES THAT WILLBE USED TO MAINTAIN THE IMPLEMENTED EPSC MEASURES ARE AS FOLLOWS:

·· THE IMPLEMENTED EPSC MEASURES WILL BE MAINTAINED IN GOOD WORKING ORDER. IF REPAIR IS NECESSARY, IT WILL BE CONDUCTEDWITHIN 48 HOURS OF BEING REPORTED. THE IDENTIFIED NEEDED REPAIRS AND CORRECTIVE ACTION CONDUCTED WILL BE LOGGED IN ASEPARATE BINDER AND MAINTAINED ON THE PROJECT SITE.

·· INSPECT STABILIZED CONSTRUCTION ENTRANCE DAILY. RE-DRESS TOP AGGREGATE WITH CLEAN STONE, AS NEEDED. IMMEDIATELYREMOVE ANY MUD OR DIRT TRACKED ONTO PUBLIC ROADWAYS. RESHAPE ENTRANCE PAD, AS NEEDED, FOR DRAINAGE AND RUNOFFCONTROL.

·· SILT FENCE WILL BE INSPECTED FOR BY-PASSING, OVERTOPPING, UNDERCUTTING, TEARS, ATTACHMENT TO SUPPORT POSTS, AND DEPTHOF SEDIMENT BUILD UP. BY-PASSING, IF IDENTIFIED, WILL BE REPAIRED IMMEDIATELY. SEDIMENT WILL BE REMOVED FROM BEHIND SILTFENCE BEFORE IT REACHES ONE-HALF THE HEIGHT OF THE SILT FENCE.

·· INSPECT ACCESS ROADS AND PATHS DAILY. IMMEDIATELY REMOVE ANY MUD OR DIRT TRACKED ONTO THE ACCESS ROADS, FORMERFIFTH STREET, AND/OR ADJACENT PUBLIC ROADWAYS (JACOBS WAY).

·· TEMPORARY AND PERMANENT SEEDING AND MULCHING WILL BE INSPECTED WITHIN 24 HOURS OF EACH RAIN EVENT OF ONE-HALF INCHOR MORE AND AT LEAST EVERY SEVEN CALENDAR DAYS UNTIL VEGETATION IN SUCCESSFULLY ESTABLISHED (70% AND 80% VEGETATIONDENSITIES FOR TEMPORARY AND PERMANENT SEEDING, RESPECTIVELY). CHECK FOR EROSION AND MOVEMENT OF MULCH. REPAIRDAMAGED, BARE, GULLIED OR SPARSELY VEGETATED AREAS, AS NEEDED.

A1 PLAN INDEX· THIS SHEET

A2 11 BY 17 INCH PLAT SHOWING BUILDING LOT NUMBERS/BOUNDARIES AND ROAD LAYOUT/NAMES· FIGURE 1 PROVIDED AS AN ATTACHMENT

A3 PROJECT START/END DATES· START - JULY 1, 2020· END - DECEMBER 31, 2020

A4 NARRATIVE DESCRIBING NATURE AND PURPOSE· THE PROPOSED STREAM MITIGATION PROJECT WILL INVOLVE STREAM RE-ESTABLISHMENT ALONG AN APPROXIMATELY 252-FOOT DEGRADED INTERMITTENT STREAM AND

THE ESTABLISHMENT OF 0.28 ACRE OF EMERGENT WETLAND. STREAM MITIGATION MEASURES WILL INCLUDE THE INSTALLATION OF RIFFLES AND BOULDER STRUCTURES,BANK GRADING, AND REVEGETATION OF THE RESTORED STREAMBANKS. WETLAND MITIGATION MEASURES WILL INCLUDE GRADING A DEPRESSED AREA ANDCONSTRUCTING AN EARTHEN BERM WITH VEGETATED OUTLET.

A5 VICINITY MAP SHOWING PROJECT LOCATION· SEE SITE LOCATION MAP ON SHEET 1.

A6 LEGAL DESCRIPTION OF THE PROJECT SITE· THE SITE IS LOCATED JUST NORTH OF THE INTERSECTION OF SALEM ROAD AND NEW CHAPEL ROAD, WEST OF THE FORMER FIFTH STREET, IN THE RIVER RIDGE

DEVELOPMENT AUTHORITY PROPERTY, CLARK COUNTY, INDIANA, 47130.· STREAM MITIGATION SITE LATITUDE - 38.366478° NORTH; LONGITUDE - 85.681094° WEST· WETLAND MITIGATION SITE LATITUDE - 38.368538° NORTH; LONGITUDE - 85.680028° WEST

A7 LOCATION OF ALL LOTS AND PROPOSED SITE IMPROVEMENTS· THIS IS A SINGLE SITE PROJECT WITH ALL PROPOSED WORK TO BE COMPLETED WITHIN PROPERTY OWNED BY THE RIVER RIDGE DEVELOPMENT AUTHORITY. SEE SHEETS 1

THROUGH 11.

A8 HYDRAULIC UNIT CODE (14 DIGIT)· 05140101100010

A9 NOTATION OF ANY STATE OR FEDERAL WATER PERMITS· THE PROJECT IS BEING USED AS MITIGATION FOR IMPACTS; THEREFORE, THE PROJECT HAS BEEN AUTHORIZED UNDER A U.S. ARMY CORPS OF ENGINEERS (USACE) SECTION

404 RGP (USACE ID No.: LRL-2018-399-MKD) AND AN INDIVIDUAL SECTION 401 WQC THROUGH THE INDIANA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT (IDEM) (IDEMNO.: 2018-257-10-TMS-A). THE DISTURBANCE LIMITS WILL BE MORE THAN ONE ACRE AND WILL REQUIRE A RULE 5 STORMWATER CONSTRUCTION GENERAL PERMIT. A RULE 5NOTICE OF INTENT APPLICATION PACKAGE WILL BE SUBMITTED TO THE CLARK COUNTY SWCD AND IDEM PRIOR TO CONSTRUCTION. A LOCAL CLARK COUNTY SITEDISTURBANCE PERMIT WILL ALSO BE REQUIRED. ADDITIONALLY, THE PROPOSED STREAM MITIGATION ACTIVITIES ARE LOCATED WITHIN THE FLOODWAY, AS MAPPED BYINDIANA DEPARTMENT OF NATURAL RESOURCES (IDNR); THEREFORE, A CONSTRUCTION-IN-A-FLOODWAY PERMIT WILL BE OBTAINED FROM IDNR.

A10 SPECIFIC POINTS WHERE STORMWATER DISCHARGE WILL LEAVE THE SITE· STORMWATER FROM THE STREAM MITIGATION AND WETLAND MITIGATION SITES FLOW TO INTERMITTENT STREAM 1 AND PROPOSED VEGETATED SWALE, RESPECTIVELY, AS

SHOWN ON SHEETS 2, 3, 5, 10, AND 11.

A11 LOCATIONS AND NAME OF ALL WETLANDS, LAKES, AND WATERCOURSES ON AND ADJACENT TO THE SITE· THE STREAM MITIGATION SITE CONTAINS AN UNNAMED INTERMITTENT STREAM (INTERMITTENT STREAM 1), WHICH FLOWS SOUTH IN TO LENTZIER CREEK. THE WETLAND

MITIGATION SITE CONTAINS AN EMERGENT WETLAND WHICH IS LOCATED IN THE NORTHERN PORTION OF THE WETLAND MITIGATION SITE, JUST NORTH OF THE PROPOSEDEMERGENT WETLAND.

A12 IDENTIFICATION OF ALL RECEIVING WATERS· STORMWATER FROM THE STREAM MITIGATION SITE FLOWS THROUGH INTERMITTENT STREAM 1, AS SHOWN ON SHEETS 2, 3, 10 AND 11, WHICH THEN FLOWS SOUTH IN TO

LENTZIER CREEK. STORMWATER FROM THE WETLAND MITIGATION SITE EXITS THE SITE VIA A VEGETATED SWALE AND EVENTUALLY FLOWS SOUTHWEST TO INTERMITTENTSTREAM 1, AS SHOWN ON SHEETS 2,5,10, AND 11.

A13 IDENTIFICATION OF POTENTIAL DISCHARGES TO GROUNDWATER· THE MITIGATION SITES AND ADJACENT PROPERTIES DO NOT HAVE ANY KNOWN WELLS; HOWEVER, THERE IS ONE SINKHOLE LOCATED ON AN ADJACENT PROPERTY,

NORTHWEST OF THE WETLAND MITIGATION SITE AND NORTH OF THE STREAM MITIGATION SITE. POTENTIAL DISCHARGES OF SEDIMENT-LADEN WATER TO GROUNDWATERWILL BE PREVENTED THROUGH IMPLEMENTATION OF THE EPSC PLAN (SHEET 11).

A14 100 YEAR FLOODPLAINS, FLOODWAYS, AND FLOODWAY FRINGES· THE ENTIRE STREAM MITIGATION SITE IS LOCATED WITHIN THE 100-YEAR FLOODPLAIN AND FLOODWAY, AS MAPPED BY IDNR. THE WETLAND MITIGATION SITE IS LOCATED

OUTSIDE THE FLOODWAY BUT WITHIN THE FLOOD FRINGE AS MAPPED BY IDNR. THE MAPPED 100-YEAR FLOODPLAIN AND FLOODWAY LIMITS ARE SHOWN IN THE FIGUREBELOW.

A15 PRE-CONSTRUCTION AND POST-CONSTRUCTION ESTIMATES OF PEAK DISCHARGE (10-YEAR STORM EVENT)· THE PROPOSED STREAM MITIGATION INVOLVES THE REGRADING OF AN EXISTING STREAM AND THE INSTALLATION OF RIFFLES AND BOULDER STRUCTURES. THE PROPOSED

WETLAND MITIGATION INVOLVES GRADING FOR THE ESTABLISHMENT OF AN EMERGENT WETLAND, EARTHEN BERM, AND VEGETATED SWALE. NO IMPERVIOUS STRUCTURESWILL BE ADDED AND THE GRADING WILL NOT HAVE A SIGNIFICANT IMPACT ON THE CONVEYANCE OF STORMWATER FROM EITHER SITE. IN ADDITION, TREES WILL BE PLANTEDIN AREAS THAT ARE CURRENTLY IN PASTURE, THUS LIKELY REDUCING THE RUNOFF RATE OVER TIME. THE PRE- AND POST-CONSTRUCTION PEAK DISCHARGE ESTIMATES FORTHE 10-YEAR STORM EVENT ARE 615 CUBIC FEET PER SECOND FOR THE STREAM MITIGATION SITE AND 172 CUBIC FEET PER SECOND FOR THE WETLAND MITIGATION SITE.

A16 ADJACENT LAND USE, INCLUDING UPSTREAM WATERSHED· THE ADJACENT PROPERTIES AND THE UPSTREAM WATERSHED ARE DOMINATED BY COMMERCIAL AND LIGHT INDUSTRIAL LAND USES AS SHOWN ON SHEET 1.

A17 LOCATIONS AND APPROXIMATE BOUNDARIES OF ALL DISTURBED AREAS· THE PROJECT DISTURBANCE LIMITS ARE IDENTIFIED ON SHEETS 2, 3, 5, 10 AND 11.

A18 IDENTIFICATION OF EXISTING VEGETATIVE COVER· THE EXISTING VEGETATIVE COVER FOR THE MITIGATION SITES CONSISTS PREDOMINANTLY OF PASTURE GRASSES WITH SOME SCATTERED TREES AND SHRUBS ALONG

INTERMITTENT STREAM 1, AS SHOWN ON THE AERIAL ON SHEET 1.

A19 SOILS MAP INCLUDING SOIL DESCRIPTIONS AND LIMITATIONS· BOTH OF THE MITIGATION SITES ARE PRIMARILY UNDERLAIN BY HAYMOND SILT LOAM, 0 TO 2 PERCENT SLOPES, OCCASIONALLY FLOODED, VERY BRIEF DURATION, WITH A

SMALL AMOUNT OF HAGGATT-CANEYVILLE SILT LOAMS, KARST, HILLY, ERODED. A SOIL SURVEY MAP DEPICTING THE SOIL TYPES UNDERLYING THE MITIGATION SITES ANDSOIL DESCRIPTIONS ARE PROVIDED ON THIS SHEET.

A20 LOCATIONS, SIZE, AND DIMENSIONS OF PROPOSED STORMWATER SYSTEMS· THERE ARE NO STORMWATER SYSTEMS PROPOSED FOR THE PROJECT SITE.

A21 PLANS FOR ANY OFF-SITE CONSTRUCTION ACTIVITIES ASSOCIATED WITH THIS PROJECT· THE PROJECT DOES NOT INVOLVE ANY CONSTRUCTION ACTIVITIES BEYOND THE PROPOSED PROJECT BOUNDARIES/DISTURBANCE LIMITS.

A22 LOCATIONS OF PROPOSED STOCKPILES AND/OR BORROW/DISPOSAL AREAS· SOIL STOCKPILES WILL ONLY BE UTILIZED TO STORE STRIPPED TOPSOIL DURING CONSTRUCTION. ALL STOCKPILES WILL BE KEPT AWAY FROM ANY RECEIVING WATER

BODIES, CONTAINED USING SILT FENCE PER THE DETAIL PROVIDED ON SHEET 11, AND SHALL BE STABILIZED WITH SEED AND STRAW MULCH PRIOR TO ANY RAIN EVENT.EXCESS SOIL WILL BE PERMANENTLY SPREAD IN BOTH STAGING AREAS TO A MAXIMUM DEPTH OF ONE FOOT AND STABILIZED WITH NATIVE SEED AND CLEAN STRAW MULCHIN ACCORDANCE WITH THE PLANTING PLAN (SHEET 10).

A23 EXISTING SITE TOPOGRAPHY AT AN INTERVAL APPROPRIATE TO INDICATED DRAINAGE PATTERNS· THE EXISTING SITE TOPOGRAPHY AT ONE-FOOT CONTOUR INTERVALS IS PROVIDED ON SHEETS 2, 3, 5, 10, AND 11.

A24 PROPOSED FINAL TOPOGRAPHY AT AN INTERVAL APPROPRIATE TO INDICATE DRAINAGE PATTERNS· THE PROPOSED FINAL TOPOGRAPHY IS PRESENTED ON SHEETS 2, 3, 5, 10, AND 11 AND IN THE PROPOSED CROSS SECTIONS SHOWN ON SHEET 4 AND SHEETS 6 THROUGH 8.

0

SCALE IN FEET

0

SCALE IN FEET

15075150 500 250 500

SOURCE: AERIAL - IMAGERY.GIS.IN.GOV (2016); IDNR DIVISION OF WATER FLOODPLAIN MAPPING FOR CLARK COUNTY, INDIANA - IN.GOV/DNR/WATER/9846.HTM