HomeMy WebLinkAboutSanitary SewerSanitary Sewer Report
for
Tower Point Infrastructure Development
College Station, Texas
Prepared for:
Weiner Development Corporation
Prepared by:
Walter P. Moore & Associates, Inc.
920 Main Street, 10 Floor
Kansas City, Missouri 65104
October 7, 2009
INTERIM REVIEW ONLY
Document Incomplete: Not in.ten:ded
for permit or construction.
Engineer KEVIN P. SULLIVAN, P.E.
P.E. Serial No; 102419
Date- 1 0 —
07 -09
Walter P. Moore and Associates, Inc.
TBPE Firm Registration No. 1856
TABLE OF CONTENTS
SANITARY SEWER OVERVIEW 2
PROJECT DESCRIPTION 2
SANITARY SEWER ANALYSIS 3
FUTURE DEVELOPMENT 4
CONCLUSION 4
APPENDIX 5
SANITARY SEWER OVERVIEW
Introduction
The sanitary sewer line has been prepared for the Tower Point Infrastructure Development
project located in College Station Texas.
The sanitary sewer has been prepared in general conformance with the requirements of
College Station and TxDOT.
The purpose of the report is to verify adequate capacity of the proposed sanitary sewer line for
the drainage area discharging into the system for the commercial development.
This sanitary sewer analysis consists of this narrative plan, the accompanying exhibits included
in the appendices.
PROJECT DESCRIPTION
Location and Outfall Information
The site is located is at approximately Latitude 30° 33' 31" N and Longitude 96° 15' 40" W
determined using the USGS map. The site is located in the Wellborn SE Quadrangle Brazos
County, Texas. The site slopes to the west and northwest of the property.
Existing Conditions
The site of the project is located approximately at the west corner of the intersection of
Highway 6 and Highway 40 in College Station, Texas. The site is bounded by Highway 6 to the
north, Highway 40 to the east and private development to the south and west.
The project size is approximately 32 acres in size and is currently not developed. The site
consists of primarily rocky soil with minimal vegetation.
Sanitary Sewer Report
Tower Point Infrastructure Development Page 2
Proposed Site Conditions
Proposed development consists of a commercial retail shops with associated parking, drives,
sidewalk, and landscaping. The public infrastructure being constructed consists of new public
roadways, public water mains, public storm sewer systems, and public sanitary sewer
systems. The public sanitary sewer will be connected to an existing 10" PVC sanitary sewer
system located at the east of the existing round - about. The new sanitary sewer extension will
be extended to the south and southeast along the new private drive C with lateral lines stubbed
for future development on the west and southwest portion of the development. Two additional
sanitary sewer lines will be extended from private drive C to the HEB property line to serve the
HEB gas station and retail center (See Exhibit 1). HEB engineers will design the sanitary
sewers within the HEB site.
SANITARY SEWER ANALYSIS
Existing Analysis
The existing sanitary sewer manhole at the east side of the round -about which is the point of
connection collecting approximately 34.5 acres of commercial development (See Exhibit 2).
The existing 10" PVC sanitary sewer system at the round -about has a maximum peak hourly
flow of 1.23x10 ^6gpd or 1.90cfs and slopes to the northwest along Arrington Road.
Proposed Analysis
The proposed sanitary sewer drainage area discharging to the existing system is analyzed
below:
A =34.5 acres
Capita =30 persons /acre
Retail =25gpd /person
Design (8" PVC) _> Q Average Daily Flow
Q Peak Hourly Row = (Q Average Daily Flow 4
25,875gpd
Sanitary Sewer Report
Tower Point Infrastructure Development Page 3
0 Peak Hourly Flow = 103,500gpd or 0.16cfs
FUTURE DEVELOPMENT
The sanitary sewer for the future development to the north, northwest, and west of HEB will be
designed and submitted to the city for approval as lots are developed for each phase.
CONCLUSION
The existing sanitary sewer system has adequate capacity to handle the new sanitary sewer
flows discharging to the existing system at the connection point located east of the existing
round - about.
Sanitary Sewer Report
Tower Point Infrastructure Development Page 4
APPENDIX
Exhibit 1 Sanitary Sewer Layout
Exhibit 2 Proposed Sanitary Sewer Drainage Area
Sanitary Sewer Report
Tower Point Infrastructure Development Page 5
EXHIBIT 1
HIGHWAY 40
EXHIBIT 2
•■•••--•,•-•,•-• •-_,-•,- •-
••: •
‘\ \k \
\*"
HIGHWAY 40
•
!
! I !
•
.....•maas,.••■••■••••••!....E...
•• • • . '• • •
• •