Paving Upgrades at Mary Burns Michael ES RFCSP #2021-014 ADDENDUM 2 – 12/29/2020 ADDITIONAL INFORMATION 1. The pre-bid site walk was held via teleconference on 12/21/20 at 1:00 p.m. The following were in attendance: NISD (Owner) Pollyanne Johnson [email protected]Consultants Pape-Dawson (Civil/Prime) Stacey Weichert [email protected]CFZ Group (Landscape) Leticia Zavala [email protected]Alderson Assoc. (Electrical) Randy Speer [email protected]Bidders CGC General Contractors Paul Gambill [email protected]CGC General Contractors Brad Tatum [email protected]Allbrite Constructors of Texas Rolando Sosa [email protected]RL Rodhe Mike Boehmer [email protected]SBM General Contractor Shawn Mulvihill [email protected]2. Questions and Answers received during and following site walk: Q: When is anticipated start? A: Summer is expected; however, if low/no attendance due to pandemic, earlier start may be requested. Bid should allow for either possibility, as indicated in bid documents. Q: Sheet C1.10 Circled notes 1, 2, 7 & 10 are indicated on Sheet the drawing. Provide note explanations or descriptive legend for indicated numerical note identifiers. A: Keynote 7 reference to architect should refer to specifications – all fencing requirements are as indicated in the related specification; however, detail has been added and keynote revised for clarity. Keynote 1 refers to 6” high curb on C1.30 (Onsite Asphalt Pavement Curb Details), Keynote 2 Concrete Flume refers to Concrete Flume detail on C3.1 as noted, Keynote 10 refers to related striping and ramp details as indicated. Keynote 6 was duplicated and noted as not used. See revised sheets.
4. Item No. Sheet L1.02 Irrigation Plan. Irrigation Notes, Item 14, Remove all references to
rotor zones.
END OF ADDENDUM 12-23-2020
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Landscape Architecture
San Antonio, Texas 78229210-366-1911/210-366-0044 fax
7410 John Smith Drive, Suite 208
C F Z G r o u p L L C
& Planning
cfz
12-23-2020
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SEE SHEET L1.01
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FOR ENLARGEMENT
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2
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"
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20' GATE
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(60' R.O.W.) (VOL. 9538, PG. 218 DPR)
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Master Control Valve:
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Licensed Irrigator's Number: #8650
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By,
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CONFORMITY LETTER:
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TOTAL LOSSES:
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Head PSI:
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Remote Control Valve:
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Mainline:
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Elevation Loss:
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Backflow Preventer:
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Meter:
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Service:
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GPM/ZONE:
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Design PSI:
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Static PSI:
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PRESSURE LOSS CALCULATIONS:
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PRESSURE:
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%%uIRRIGATION DESIGN REQUIREMENTS:
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I, Leticia Zavala, a licensed irrigator in the State of Texas do certify that the irrigation plan submitted conforms to the irrigation design and equipment standards set out in 35-510(j) and 35-511(c)(6) of the City of San Antonio Unified Development Code and also complies with the requirements of Chapter 344, 344.60, 344.61, 644.63, 344.70 - 344.72 of the Texas Administrative Code.
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N/A
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N/A
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35.662
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30.0
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30
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1.7
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1"
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.002
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2-1/2"
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0.0
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0.0
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3.8
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2"
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.13
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2"
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.03
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2"
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6.0
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40.662
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Irrigation contractor shall be responsible for sleeves and chases wherever piping or conduit passes, under all paving, through walls, etc. All sleeve locations may not be shown on plan, coordinate with architectural and civil drawings, general contractor and other subcontractors as required. All sleeve and chase locations are not noted on plan. All sleeves shall be Sch 40 PVC, sized twice the diameter of pipe or combination of pipes enclosed within the sleeve.
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It is the Irrigation contractor's responsibility to coordinate piping with the landscape subcontractor to avoid conflict with planting beds. It will be the responsibility of the irrigation subcontractor to move piping to allow proper placement of plant material.
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Due to scale of drawings, it is not possible to indicate all offsets, fittings sleeves, etc., which may be required. Irrigation contractor shall carefully investigate the structural and finished conditions affecting all of his work and plan his work accordingly, furnishing such fittings, etc., as may be required to meet such conditions. Drawings are generally diagrammatic and indicative of the work to be installed. The work shall be installed in such a manner as to avoid conflicts between irrigation system, planting and architectural features. This design is diagrammatic. All piping, valves, etc., shown within paved areas is for design clarification only and shall be installed in planting areas and within property lines.
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Irrigation contractor shall be responsible for any coordination with other contractors as required to accomplish irrigation installation.
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Do not willfully proceed with construction as designed without verifying actual on-site water pressure from the source. Do not willfully proceed with construction as designed when it is obvious that unknown obstructions and/or grade differences exist that may not have been known during design. Such conditions shall be immediately brought to the attention of the Landscape Architect or Owner's Representative. The Irrigation contractor shall assume full responsibility for all necessary revisions due to failure to give such notification.
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The irrigation contractor is required by law to notify Texas One Call (800-245-4545) and (800) DIG TESS (800-344-8377) 72 hours prior to any excavation. Irrigation contractor shall be responsible for making himself familiar with all underground utilities, pipes and structures. Irrigation contractor shall take sole responsibility for any cost incurred due to damage of said utilities whether or not Texas One Call is notified.
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Irrigation contractor shall be responsible for making himself familiar with the specifications and all submittal requirements. It is the responsibility of the Irrigation contractor to notify the Landscape Architect for site inspections as specified in the specifications. Failure to notify the Landscape Architect does not relieve the contractor from inspection approval and will require the contractor to uncover work as required for approval at the cost of the contractor. Irrigation contractor is to inform Landscape Architect of the start date of work.
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%%UIRRIGATION NOTES ( - Keyed Note)
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5.
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Cap existing mainline.
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8.
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No cutting, filling, trenching, root disturbance, soil disturbance, or construction impacts shall occur closer to the trunk than 1/2 the root protection zone radius in accordance with City of San Antonio UDC 35-523(i)(1) unless done by hand. Trenching is to be done by hand Trenching is to be done by hand or by tunneling under root system by method approved by Landscape Architect. Piping layout is diagrammatic and piping shall be routed around existing plant material to avoid damage to existing plants. Do not cut any root over 3/4" diameter. Any cuts made shall be clean and without frayed ends.
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Pressure at any point within a zone shall not vary by more than 10% from the design sprinkler operating pressure. See specifications for Testing.
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10.
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If actual site static pressure exceeds design pressure by 10%, a pressure reducing valve shall be installed. See specifications.
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Existing controller locations.
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Cap existing laterals.
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Existing irrigation meter. Refer to Civil Dwg.
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Irrigation Contractor is to provide 5-spray heads and associated fittings and piping for use on irrigation zone(s) as directed in the field by Landscape Architect.
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All undesignated end lateral piping shall be 1/2" in spray zones.
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Obtain coverage test approval from Landscape Architect or Owner's Representative prior to planting, sodding or seeding.
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All irrigation work shall be installed under the supervision of a licensed (in the State of Texas) irrigation contractor.
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All work will be in accordance with the requirements of the City of San Antonio Unified Development Code 35-510(j) and 35-511(c)(6) and the Texas Administrative Code Chapter 344, 344.60, 344.61, 644.63, 344.70-344.72.
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Refer to civil dwgs. for grading plan.
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Statement of Area Coverage: Drawing does not provide for 100% coverage of the site. See plans and specifications for areas to be irrigated.
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Per TAC Section 344.62 (d): Piping in irrigation systems must be designed and installed so that the flow of water in the pipe will not exceed a velocity of five feet per second for polyvinyl chloride (PVC).
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Existing weather sensors.
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**WATER SCHEDULE REQUIRED TO PROVIDE 1"/WEEK
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10 min./3 days
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*REQUIRED PRECIPITATION RATE = .275"/HOUR
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3.7
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MIN. per DAY/WK
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**SCHEDULE
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RATE
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*PRECIP.
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30.0
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EXISTING
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BUB
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1-1/2"
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SIZE
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EXISTING ZONE
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ROTARY ZONE
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%%UVALVE SCHEDULE
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SPRAY ZONE IN LAWN AREA
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DRIP ZONE IN BED AREA
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TREE BUBBLER ASSEMBLY ZONE
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ROT
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SL
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DRIP
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STATION
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3
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4
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NO.
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2
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BUB
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GPM
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%%UOVERALL IRRIGATION PLAN
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1"=40'-0"
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NO. REVISIONDATEREVISIONDATEDATE
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PLAT NO.
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SHEET
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CHECKED DRAWN
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DESIGNER
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JOB NO.
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DATE
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DESIGNER
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BF/LZ
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LZ
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NOVEMBER 2020
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12229-00
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S:\20-1260\DWGS\01260L1.DWG
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L1.00
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OVERALL IRRIGATION PLAN
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ADDENDUM
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#2
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Landscape Architecture
San Antonio, Texas 78229210-366-1911/210-366-0044 fax
7410 John Smith Drive, Suite 208
C F Z G r o u p L L C
& Planning
cfz
12-23-2020
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6.0
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20' GATE
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(60' R.O.W.) (VOL. 9538, PG. 218 DPR)
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EXISTING CONTROLLER.
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EXISTING WEATHER SENSORS.
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LATERAL PIPING, SEE DTL.5/L2.00
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SUPPLY LINE, SEE DTL.5/L2.00
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IRRIGATION SLEEVE, SEE DTL.5/L2.00
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EXISTING IRRIGATION WATER METER. SEE CIVIL.
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EXISTING BACKFLOW. SEE CIVIL.
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MANUAL VALVE, SEE DTL. 1/ L2.00
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REMOTE CONTROL VALVE, SEE DTL. 2/L2.00
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C
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TREE BUBBLER ASSEMBLY, SEE DTL. 4/L2.00
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GALLONS PER MINUTE
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VALVE SIZE
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VALVE DESIGNATION
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%%uLEGEND
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TREE BUBBLER LATERAL PIPING, SEE DTL. 5/L2.00
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BED EDGER, SEE SHEET L3.10
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EXISTING ROTARY HEAD TO REMAIN
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EXISTING QUICK COUPLER
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EXISTING SUPPLY LINE
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EXISTING LATERAL PIPING
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EXISTING IRRIGATION SLEEVE
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S
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EXISTING SPLICE BOX
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CAP EXISTING SUPPLY LINE
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CAP EXISTING LATERAL LINE
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TIE NEW LATERAL TO EXISTING LATERAL LINE
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TIE NEW SUPPLY TO EXISTING SUPPLY LINE
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EXISTING LATERAL PIPING TO BE REMOVED
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EXISTING SUPPLY LINE TO BE REMOVED
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EXISTING SPRAY HEAD TO REMAIN
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EXISTING SPRAY HEAD TO BE REMOVED
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EXISTING ROTARY HEAD TO BE REMOVED
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EXISTING ZONE NUMBER
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Irrigation contractor shall be responsible for sleeves and chases wherever piping or conduit passes, under all paving, through walls, etc. All sleeve locations may not be shown on plan, coordinate with architectural and civil drawings, general contractor and other subcontractors as required. All sleeve and chase locations are not noted on plan. All sleeves shall be Sch 40 PVC, sized twice the diameter of pipe or combination of pipes enclosed within the sleeve.
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It is the Irrigation contractor's responsibility to coordinate piping with the landscape subcontractor to avoid conflict with planting beds. It will be the responsibility of the irrigation subcontractor to move piping to allow proper placement of plant material.
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Due to scale of drawings, it is not possible to indicate all offsets, fittings sleeves, etc., which may be required. Irrigation contractor shall carefully investigate the structural and finished conditions affecting all of his work and plan his work accordingly, furnishing such fittings, etc., as may be required to meet such conditions. Drawings are generally diagrammatic and indicative of the work to be installed. The work shall be installed in such a manner as to avoid conflicts between irrigation system, planting and architectural features. This design is diagrammatic. All piping, valves, etc., shown within paved areas is for design clarification only and shall be installed in planting areas and within property lines.
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Irrigation contractor shall be responsible for any coordination with other contractors as required to accomplish irrigation installation.
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Do not willfully proceed with construction as designed without verifying actual on-site water pressure from the source. Do not willfully proceed with construction as designed when it is obvious that unknown obstructions and/or grade differences exist that may not have been known during design. Such conditions shall be immediately brought to the attention of the Landscape Architect or Owner's Representative. The Irrigation contractor shall assume full responsibility for all necessary revisions due to failure to give such notification.
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The irrigation contractor is required by law to notify Texas One Call (800-245-4545) and (800) DIG TESS (800-344-8377) 72 hours prior to any excavation. Irrigation contractor shall be responsible for making himself familiar with all underground utilities, pipes and structures. Irrigation contractor shall take sole responsibility for any cost incurred due to damage of said utilities whether or not Texas One Call is notified.
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Irrigation contractor shall be responsible for making himself familiar with the specifications and all submittal requirements. It is the responsibility of the Irrigation contractor to notify the Landscape Architect for site inspections as specified in the specifications. Failure to notify the Landscape Architect does not relieve the contractor from inspection approval and will require the contractor to uncover work as required for approval at the cost of the contractor. Irrigation contractor is to inform Landscape Architect of the start date of work.
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%%UIRRIGATION NOTES ( - Keyed Note)
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Cap existing mainline.
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No cutting, filling, trenching, root disturbance, soil disturbance, or construction impacts shall occur closer to the trunk than 1/2 the root protection zone radius in accordance with City of San Antonio UDC 35-523(i)(1) unless done by hand. Trenching is to be done by hand Trenching is to be done by hand or by tunneling under root system by method approved by Landscape Architect. Piping layout is diagrammatic and piping shall be routed around existing plant material to avoid damage to existing plants. Do not cut any root over 3/4" diameter. Any cuts made shall be clean and without frayed ends.
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Pressure at any point within a zone shall not vary by more than 10% from the design sprinkler operating pressure. See specifications for Testing.
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If actual site static pressure exceeds design pressure by 10%, a pressure reducing valve shall be installed. See specifications.
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Existing controller locations.
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Cap existing laterals.
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Existing irrigation meter. Refer to Civil Dwg.
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Irrigation Contractor is to provide 5-spray heads and associated fittings and piping for use on irrigation zone(s) as directed in the field by Landscape Architect.
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All undesignated end lateral piping shall be 1/2" in spray zones.
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Obtain coverage test approval from Landscape Architect or Owner's Representative prior to planting, sodding or seeding.
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All irrigation work shall be installed under the supervision of a licensed (in the State of Texas) irrigation contractor.
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All work will be in accordance with the requirements of the City of San Antonio Unified Development Code 35-510(j) and 35-511(c)(6) and the Texas Administrative Code Chapter 344, 344.60, 344.61, 644.63, 344.70-344.72.
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Tie new mainline to existing mainline. Reinstall and reconnect
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Statement of Area Coverage: Drawing does not provide for 100% coverage of the site. See plans and specifications for areas to be irrigated.
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Per TAC Section 344.62 (d): Piping in irrigation systems must be designed and installed so that the flow of water in the pipe will not exceed a velocity of five feet per second for polyvinyl chloride (PVC).
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Existing weather sensors.
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wires as required.
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Excavate existing soil at backflow preventer. Restore clearances per code.
