| Date |
Text |
| 2020-02-19 09:04:00 | THE FOLLOWING COMMENTS ARE FROM THE REVIEW OF THE |
| | 1/28/2020 SUBMITTAL PACKAGE: |
| | |
| | 1. [REPEAT COMMENT] REVIEW THE PROPOSED GRADING OF THE |
| | ALLEY. IT APPEARS WATER WILL BE PREVENTED FROM DRAINING |
| | FROM THE PROPERTIES ON THE NORTH SIDE OF THE ALLEY. |
| | THERE IS AN EXISTING OFFSITE SPOT GRADE OF 14.10 (NEAR |
| | THE CROSS SECTION C-C CALLOUT). THE PROPOSED FLOW LINE |
| | OF THE ALLEY ADJACENT TO THE SPOT GRADE IS BETWEEN |
| | 14.15 AND 14.85. THERE IS AN EXISTING SPOT GRADE OF |
| | 14.05 (FURTHER TO THE EAST) AND THE PROPOSED FLOW LINE |
| | OF THE ALLEY IS 14.00. THE NORTH SIDE OF THE ALLEY WILL |
| | HAVE A VERY FLAT CROSS SLOPE AND STORMWATER RUNOFF WILL |
| | POOL IN THIS LOCATION, INCLUDING IN THE ADJACENT |
| | OFFSITE AREA. |
| | |
| | 2. VERIFY THE PROPOSED FINISHED FLOOR ELEVATION OF |
| | 15.05 FEET NAVD PROVIDED ON CROSS SECTION D-D FOR THE |
| | WEST PROPERTY LINE. THERE IS A PROPOSED SPOT GRADE OF |
| | 17.65 ALONG THE WEST SDIE OF THE BUILDING. |
| | |
| | 3. THE CONCRETE SIDEWALK ALONG THE WEST SIDE OF THE |
| | BUILDING SHALL BE CONTINUED ACROSS THE ALLEY. SHEET |
| | C-05 SHOWS THE SIDEWALK AREA AS MILL AND RESURFACE. |
| | |
| | 4. ADD MORE PRB'S UPSTREAM OF THE EXFILTRATION TRENCHES |
| | TO EXTEND THEIR LIFE. |
| | |
| | 5. DIMENSION THE LOW SPOT OF THE ALLEY IN SECTION C-C |
| | ON SHEET C-07. STAFF IS UNCLEAR IF THE NOTE ?LOW SPOT |
| | IS CENTER OF ALLEY? REFERS TO THE CENTER OF THE |
| | PROPOSED 20? ALLEY OR THE CENTER OF THE ALLEY R/W. |
| | |
| | 6. IN SECTION C-C ON SHEET C-07 PROVIDE A DIMENSION FOR |
| | THE DISTANCE BETWEEN THE ALLEY R/W LINE AND THE SOUTH |
| | EDGE OF PAVEMENT. |
| | |
| | 7. ALTHOUGH DRAINAGE CALCULATIONS WERE NOT PROVIDED |
| | WITH THIS SUBMITTAL, THEY WERE SUBMITTED WITH THE |
| | ENGINEERING PERMIT APPLICATION PACKAGE. THE |
| | EXFILTRATION CALCULATIONS DID NOT TAKE INTO ACCOUNT THE |
| | FLOW RESTRICTIONS OF THE ADJACENT TRENCHES ON EACH |
| | OTHER. |
| | |
| | TRACY WARD, P.E. |
| | SENIOR STORMWATER ENGINEER |
| | ENGINEERING SERVICES DEPARTMENT |
| | [email protected] |
| | 561-494-1120 |
| |
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