| Date |
Text |
| 2021-04-06 11:41:46 | THE FOLLOWING COMMENTS ARE FROM THE REVIEW OF THE |
| | 3/31/2021 SUBMITTAL. THEY CAN BE ADDRESSED DURING |
| | ENGINEERING PERMIT SUBMITTAL. |
| | |
| | 1. SHOW ON THE DEMOLITION PLAN, SHEET C-03, THE |
| | EXISTING DRAINAGE PIPE CONNECTIONS FOR THE TWO CATCH |
| | BASINS IN THE NORTHEAST AREA OF THE SITE. |
| | |
| | 2. THE PGD PLAN (SHEET C-04) CALLS OUT 8' X 10' |
| | EXFILTRATION TRENCH BUT THE EXFILTRATION TRENCH DETAIL |
| | ON SHEET C-06 SHOWS 10' X 6.5' TRENCH DIMENSIONS. |
| | |
| | 3. THE EXFILTRATION TRENCH DETAIL SHOWS A WEIR |
| | ELEVATION OF 15.70 FT NAVD. |
| | A. WHERE IS THIS WEIR LOCATED? |
| | B. LOWEST FINISHED GRADE IS 16.10. SUGGEST USING |
| | CRUSHED CONCRETE BASE INSTTEAD OF LIMEROCK BASE TO |
| | CONTEND WITH POTENTIAL SATURATED BASE CONDITIONS. |
| | C. THE PROPOSED FINISHED GRADE OF THE LAWN OVER THE |
| | RAINTANKS IS SHOWN TO BE 16.50' NAVD. SHOULD THE |
| | FINISHED GRADE BE A MINIMUM OF 1 FOOT ABOVE THE WEIR |
| | ELEVATION? |
| | |
| | 4. ADD VERTICAL DATUM REFERENCE AND CONVERSION EQUATION |
| | TO NGVD1929 ON EVERY SHEET WITH ELEVATION INFORMATION. |
| | |
| | 5. SHOW MINIMUM HORIZONTAL CLEARANCE BETWEEN S.S.M.H. |
| | #4 AND THE 8" WATER MAIN TO THE NORTH AND NORTHWEST OF |
| | THE STRUCTURE. |
| | |
| | 6. CHECK WITH LAURA LE, PUBLIC UTILITIES ENGINEERING, |
| | WHETHER TO INCLUDE IN THE DESIGN OF THE PROPOSED |
| | SANITARY SYSTEM ON CLEARWATER DRIVE THE 0.1' DROP |
| | ACROSS THE MANHOLES AS INDICATED ON THE SEWER MANHOLE |
| | DETAIL. |
| | |
| | 7. IF THE TRENCH CUT FOR THE PROPOSED 12" WATER MAIN IS |
| | WITHIN THE NORTHBOUND LANE OF CLEARWATER DRIVE, THE |
| | FULL WIDTH OF THE NORTHBOUND LAND WILL NEED TO BE |
| | MILLED AND RE-SURFACED. |
| | |
| | 8. AVOID HAVING VALVE COVERS FALL WITHIN THE CURB AND |
| | GUTTER. |
| | |
| | 9. THE EXISTING WATER MAIN WILL NEED TO BE PROPERLY |
| | RESTRAINED DUE TO THE PIPE DEFLECTIONS AND VALVES. |
| | |
| | TRACY WARD, P.E. |
| | SENIOR STORMWATER ENGINEER |
| | ENGINEERING SERVICES DEPARTMENT |
| | [email protected] |
| | 561-494-1120 (O) |
| | 561-351-0510 (M) |
| | |
| | |
| |
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