Laserfiche WebLink
- Building service Sanitary connections shall be in a manhole on the main line. Each sanitary sewer <br />manhole shall have 0.1 ft drop across inverts <br />CSG RESPONSE: Sheet C4.0 revised accordingly. <br />- City Streets must include Alignment, Profile View. Public Utilities must be shown in profile view. <br />CSG RESPONSE: Plan and profile to be completed after street and utility alignments are <br />approved in this submittal. <br />- Call out Watermain Bends - Size and Angle <br />CSG RESPONSE: Sheet C4.0 Revised accordingly <br />- Need Matchline, call out sheet for Storm Sewer improvements going off sheet. <br />CSG RESPONSE: Sheet C4.0 revised accordingly <br />- Note calls out existing hydrant, hydrant is cut off from plan view <br />CSG RESPONSE: Sheet C4.0 revised accordingly <br />- Watermain Valve and Storm Sewer Pipe are shown in the same location at the intersection - adjust <br />valve location. <br />CSG RESPONSE: Sheet C4.0 revised accordingly <br />- Several Pipes are below typical minimum slope for cleaning veloctiy. 18" RCP typcial 0.0022 ft/ft. <br />based on MN Drainage Manual. Verify minimum 3 fps. <br />CSG RESPONSE: Sheet C4.0 revised to propose sufficient pipe slopes to ensure minimum flow <br />velocities. Storm sewer sizing spreadsheet provided as supplemental info to prove ±3.00 cfs <br />flow is achieved in pipes. See ACTUAL column for actual velocities achieved in pipes. All are <br />above or within a marginal difference from 3.00 cfs. Due to the request of 0.1' drops through <br />structures, the shallow nature of the site and storm system, the building connection to the <br />internal storm system, the design of the bioretention median, and the outlet to the city pond, the <br />best possible slopes were provided in the system. The limitations were too great in some cases <br />to achieve exactly 3.00 cfs, but the velocities should be within a margin of error that is <br />acceptable to the city. <br />- 12" Pipe typical 0.0037 ft/ft slope to meet min. 3 fps flow. <br />CSG RESPONSE: Sheet C4.0 revised to propose sufficient pipe slopes to ensure minimum flow <br />velocities. Storm sewer sizing spreadsheet provided as supplemental info to prove ±3.00 cfs <br />flow is achieved in pipes. See ACTUAL column for actual velocities achieved in pipes. All are <br />above or within a marginal difference from 3.00 cfs. Due to the request of 0.1' drops through <br />structures, the shallow nature of the site and storm system, the elevation of the building <br />connection to the internal storm system, the design of the bioretention median, and the outlet to <br />the city pond, the best possible slopes were provided in the system. The limitations were too <br />great in some cases to achieve exactly 3.00 cfs, but the velocities should be within a margin of <br />error that is acceptable to the city. <br />- CB's should be placed in low point across from each other. <br />CSG RESPONSE: Sheet C4.0 revised accordingly <br />- City required 0.1' Drop across structures. Need to give structure size/type. Need casting information. <br />CSG RESPONSE: Sheet C4.0 revised to show drops. Casting Schedule added to sheet C5.0 <br />(Detail 5) <br />4931 West 35th Street • Suite 200 • St. Louis Park • Minnesota •55416 • www.civilsitegroup.com <br />Matt Pavek, PE • 763-213-3944 Patrick Sarver, PLA • 952-250-2003 <br />