| Date |
Text |
| 2014-06-02 14:46:23 | 1. PALM BEACH COUNTY OR FDOT R/W PERMIT WILL BE NEEDED |
| | FOR WORK WITHIN OKEECHOBEE BLVD. RIGHT OF WAY. |
| | |
| | 2. MULTIPLE STORMWATER DETENTION CHAMBERS ARE PROPOSED |
| | SIDE BY SIDE THROUGH OUT THE SITE. ENGINEER SHOULD |
| | PROVIDE A DETAIL ON HOW WATER WILL FLOW INTO THE |
| | ADJACENT CHAMBERS. |
| | |
| | 3. THE CATCH BASIN SYMBOLS IN SOME INSTANCES APPEAR TO |
| | BE LOCATED OVER THE VERTICAL WALLS OF THE CHAMBERS. |
| | |
| | 4. THE LARGE, RECTANGULAR STORMWATER DETENTION CHAMBER |
| | IN THE MIDDLE OF THE PARKING LOT AND LONG STRETCHES |
| | SOUTH OF CB-22 AND NORTH OF CB-20 DO NOT SHOW ANY CATCH |
| | BASIN OPENINGS. HOW WILL TRAPPED AIR BE DISPLACED BY |
| | THE STORMWATER RUNOFF? HOW WILL THE CHAMBERS BE |
| | ACCESSED FOR CLEANING? |
| | |
| | 5. SHEET C-4 CALLS OUT 26 LF OF 24" HDPE PIPE TO THE |
| | NORTHEAST OUT OF CONTROL STRUCTURE CS-1. THE CONTROL |
| | STRUCTURE CS-1 DETAIL ON SHEET C-10 LABELS THE PIPE AS |
| | EX. 24" RCP TO OFFSITE. |
| | |
| | 6. STORMWATER DETENTION CHAMBER DETAILS ON SHEET C-10 |
| | SHOW TWO 24" X 24" OPENINGS IN THE BOTTOM SLAB FOR |
| | EXFILTRATION. HOW MANY OPENINGS WILL THERE BE PER 10 |
| | LINEAR FEET OF DETENTION CHAMBERS? |
| | |
| | 7. CONTROL STRUCTURE CS-1 DETAIL ON SHEET C-10: |
| | A. WHICH SIDE OF THE WEIR WILL THE 12" PIPE FROM TD-2 |
| | BE ON. |
| | B. WHAT IS THE FLAP GATE TO PREVENT AND WILL IT FIT |
| | WITH THE WEIR? |
| | C. WEIR ELEVATION IS 18.00 FT NGVD BUT TRENCH DRAIN AT |
| | WEST DRIVEWAY TO ALLEYWAY HAS A GRATE ELEVATION OF |
| | 18.10 FEET NGVD. FLOW WILL BUBBLE OUT OF THE TRENCH |
| | DRAIN WHEN THERE IS SUBSTANTIAL FLOW OVER THE WEIR. |
| | |
| | 8. WHERE IS THE BACKFLOW VALVE TO BE INSTALLED (DETAIL |
| | ON SHEET C-10)? |
| | |
| | 9. STORM DRAINAGE ANALYSIS IN THE SURFACE WATER |
| | MANAGEMENT REPORT: |
| | A. ASSUMES NO WEIR TO CONTROL WATER SURFACE ELEVATIONS |
| | B. PIPE VELOCITY BETWEEN STRUCTURES 1 AND 3 AND BETWEEN |
| | 3 AND THE OUTFALL ARE EXCESSIVE (10 FEET PER SECOND). |
| | C. HGL ELEVATIONS ARE LOWER THAN PIPE INVERT |
| | ELEVATIONS. |
| | |
| | 10. OPEN CUT TRENCH FOR WATER MAIN CONNECTION ON |
| | CHILLINGWORTH DRIVE WILL REQUIRE THE ROADWAY TO BE |
| | MILLED AND RE-SURFACED 50 FEET EACH SIDE OF THE TRENCH |
| | AND COMPLETE WIDTH OF TRAVEL LANE(S). |
| | |
| | WITH REGARDS, |
| | TRACY L. WARD, P.E. |
| | SENIOR STORMWATER ENGINEER |
| | CITY OF WEST PALM BEACH |
| | ENGINEERING AND PUBLIC WORKS DEPARTMENT |
| | 401 CLEMATIS ST., 4TH FLOOR |
| | WEST PALM BEACH, FL 33401 |
| | PHONE: 561-494-1120 |
| | FAX: 561-494-1116 |
| | CELL 561-351-0510 |
| | [email protected] |
| |
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