FIGURE NO. 1A SECANT WALL SITE PLAN NOTES: 1. MAP FROM PAUL JENSEN, DATED FEBRUARY 2018. AJB 1" = 30' 0 0 30' 60' SCALE: 1" = 30' HARO, KASUNICH & ASSOCIATES, INC. GEOTECHNICAL AND COASTAL ENGINEERS 116 E. LAKE AVENUE, WATSONVILLE, CA 95076 (831) 722-4175 SCALE: DATE: DRAWN BY: REVISED: JOB NO. SHEET NO. JUNE 2019 SC4090.3 BOULDER CREEK, CALIFORNIA SAN LORENZO VALLEY WATER DISTRICT LYON TANK, 350 MADRONE DRIVE SCALE: DRAWN BY: DRAFT VERSION
FILL SLOPE CULVERT KEYWAY APPROX. 5FT SOIL REMOVED TEMPORARY ROAD LIMITS OF GRADING TREES REMOVED
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LEGEND
FIGURE NO. 1B
CULVERT SITE PLAN
NOTES:
1. MAP FROM PAUL JENSEN, DATED FEBRUARY 2018.
AJB
1" = 30'
00 30' 60'
SCALE: 1" = 30'
HARO, KASUNICH & ASSOCIATES, INC.
GEOTECHNICAL AND COASTAL ENGINEERS
116 E. LAKE AVENUE, WATSONVILLE, CA 95076
(831) 722-4175
SCALE:
DATE:
DRAWN BY:
REVISED:
JOB NO.
SHEET NO.
JUNE 2019
SC4090.3
BOULDER CREEK, CALIFORNIA
SAN LORENZO VALLEY WATER DISTRICT
LYON TANK, 350 MADRONE DRIVE
SCALE:
DRAWN BY:
DRAFT VERSION
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SECTION C
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(N)SECANT WALLSECANT WALL
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(N) 2:1 FILL SLOPE
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AND RESTORE ROAD
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(N) TEMPORARY ROAD FOR SECANT WALL CONSTRUCTION
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(N) APPROX. 5FT APPROX. 5FT SOIL REMOVED
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LIMITS OF GRAING
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(N) 2:1 FILL SLOPE
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AND RESTORE ROAD
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HESSEY CREEK CULVERT AND KEYWAY
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0+00
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0+50
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1+00
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1+50
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2+00
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2+50
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FILL SLOPE CULVERT KEYWAY APPROX. 5FT SOIL REMOVED TEMPORARY ROAD LIMITS OF GRADING TREES REMOVED
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LEGEND
FIGURE NO. 2
PROPOSED CULVERT LIMITS
HARO, KASUNICH & ASSOCIATES, INC.
GEOTECHNICAL AND COASTAL ENGINEERS
116 E. LAKE AVENUE, WATSONVILLE, CA 95076
(831) 722-4175
SCALE:
DATE:
DRAWN BY:
REVISED:
JOB NO.
SHEET NO.
JUNE 2019
SC4090.3
BOULDER CREEK, CALIFORNIA
SAN LORENZO VALLEY WATER DISTRICT
LYON TANK, 350 MADRONE DRIVE
SCALE:
DRAWN BY:
AJB
1" = 20'
00 20' 40'
SCALE: 1" = 20'
DRAFT VERSION
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770
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775
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765
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760
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755
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750
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785
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790
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780
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770
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775
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765
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760
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755
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750
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785
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790
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780
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LIMIT OF CULVERT LENGTH = 250 FT
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795
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795
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0+00
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0+50
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1+00
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1+50
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2+00
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HESSEY CREEK PROFILE
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SCALE: 1" = 20'
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(E)GROUND SURFACEGROUND SURFACE
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CREEK
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(E)8 FT DIA. CULVERT8 FT DIA. CULVERT
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(E)GROUND SURFACEGROUND SURFACE
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2+50
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805
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810
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800
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805
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810
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800
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815
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815
B-1
B-2
B-12
B-9
SANDSTONE BEDROCK
NATIVE
LANDSLIDE SOIL
ACCESS ROAD
NATIVE
HESSEY CREEK
FIGURE NO. 3
SECANT WALL OPTION
HARO, KASUNICH & ASSOCIATES, INC.
GEOTECHNICAL AND COASTAL ENGINEERS
116 E. LAKE AVENUE, WATSONVILLE, CA 95076
(831) 722-4175
SCALE:
DATE:
DRAWN BY:
REVISED:
JOB NO.
SHEET NO.
JUNE 2019
SC4090.3
BOULDER CREEK, CALIFORNIA
SAN LORENZO VALLEY WATER DISTRICT
LYON TANK, 350 MADRONE DRIVE
SCALE:
DRAWN BY:
AJB
1" = 20'
00 20' 40'
SCALE: 1" = 20'
DRAFT VERSION
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840
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830
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820
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740
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850
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860
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0+00
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0+50
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1+00
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1+50
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2+00
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790
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780
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810
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800
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750
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760
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770
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LANDSLIDE SCARP
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2+50
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POTENTIAL LANDSLIDE FAILURE PLANE
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(P)SECANT PILESSECANT PILES
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(E)GROUND SURFACEGROUND SURFACE
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840
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830
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820
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740
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850
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860
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790
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780
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810
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800
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750
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760
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770
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3+00
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CROSS SECTION C
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SCALE: 1" = 20'
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(E)GROUND SURFACEGROUND SURFACE
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(P)SECANT PILESECANT PILE
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(P)SECANT PILESSECANT PILES
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FILL SLOPE MIN 2:1 GRADIENT
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(N)GROUND SURFACEGROUND SURFACE
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REPAIR OPTION 1: 1. THREE SECANT PILES SECURING UPSLOPE AND DOWNSLOPE SLIDE MASS.THREE SECANT PILES SECURING UPSLOPE AND DOWNSLOPE SLIDE MASS.
B-1
B-2
B-12
B-9
SANDSTONE BEDROCK
NATIVE
LANDSLIDE SOIL
ACCESS ROAD
NATIVE
FIGURE NO. 4
SECTION C
HARO, KASUNICH & ASSOCIATES, INC.
GEOTECHNICAL AND COASTAL ENGINEERS
116 E. LAKE AVENUE, WATSONVILLE, CA 95076
(831) 722-4175
SCALE:
DATE:
DRAWN BY:
REVISED:
JOB NO.
SHEET NO.
JUNE 2019
SC4090.3
BOULDER CREEK, CALIFORNIA
SAN LORENZO VALLEY WATER DISTRICT
LYON TANK, 350 MADRONE DRIVE
SCALE:
DRAWN BY:
AJB
1" = 20'
00 20' 40'
SCALE: 1" = 20'
DRAFT VERSION
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840
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830
AutoCAD SHX Text
820
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740
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850
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860
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0+00
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0+50
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1+00
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1+50
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2+00
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790
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780
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810
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800
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750
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760
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770
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LANDSLIDE SCARP
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2+50
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POTENTIAL LANDSLIDE FAILURE PLANE
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SECANT PILES
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(E)GROUND SURFACEGROUND SURFACE
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(P) 8 FT CULVERT 8 FT CULVERT ALONG CREEK PROFILE
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840
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830
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820
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740
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850
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860
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790
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780
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810
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800
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750
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760
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770
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3+00
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FILL SLOPE MIN 2:1 GRADIENT
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CROSS SECTION C
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SCALE: 1" = 20'
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(N)GROUND SURFACEGROUND SURFACE
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FILL SLOPE MIN 2:1 GRADIENT
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REPAIR OPTION 1: 1. TWO SECANT PILES SECURING UPSLOPE SLIDE MASS. TWO SECANT PILES SECURING UPSLOPE SLIDE MASS. 2. 8 FT CULVERT WITH FILL SLOPE BUTTRESSING TOE OF LOWER SLIDE MASS.8 FT CULVERT WITH FILL SLOPE BUTTRESSING TOE OF LOWER SLIDE MASS.
