HomeMy WebLinkAboutSEWER REPORT Sewer Report
FOR
CRESCENT POINTS TRACT 1
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/Cif° FM 6 0 — University Or. E
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SEPTEMBER, 2003 s �O f V
Prepared By:
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McClure Engineering, Inc.
1008 Woodcreek Drive, Suite 103 `x//9/03
College Station, Texas 77845
(979) 693 -3838
SEWER REPORT
for
CRESCENT POINTE, TRACT 1
GENERAL INFORMATION
Crescent Pointe, Tract 1 is a 55.5 acre tract of land in east College Station located
at the southeast corner of the intersection of Copperfield Parkway and FM 60 (University
Drive). The proposed development of this tract calls for a 10 -story office building that
will house the headquarters for The Adam Corporation. This building along with a motor
bank is situated on Lot 1, a 21.71 -acre tract. Future development plans for Lots 2 and 3
are unsure for now. It is assumed in this report that the remainder of the 55.5 acres will
be developed as commercial sites at some point in the future.
The area surrounding the site is mostly undeveloped pasture except for the
property across FM 60 to the north. That property is part of the Park Hudson
Development, which is a commercial subdivision consisting of office buildings and a
small hospital. Park Hudson falls within the city limits of Bryan.
SEWER SYSTEM ANALYSIS
The City of College Station is currently constructing a 12" sewer line in
conjunction with the Copperfield Parkway project. This line will serve as the primary
sewer outfall for Crescent Pointe, Tract 1. The connection point to the sewer line is
shown at Node 7 on the Sewer Line Schematic shown in Exhibit A.
Sewage flows from the proposed development are computed by fixture counts for
the office building. The total fixture count for this building is 800. In addition, sewer
flow from Lot 3 is assumed to connect into the system at Node 1. Discharge from Lot 3
is estimated by assuming a standard flowrate per acre for typical commercial construction
(7000 gpd/ac). Sewage from Lot 2 is assumed to connect into the existing sewer line at
Node 7 and therefore is not being accounted in this report. The flowrates and line sizes
are computed using the spreadsheet shown in Exhibit B. Peaking factors are also
computed by the spreadsheet and range from 3.2 to 3.31. An 8" sewer line has been
determined by this analysis to be large enough to serve lots 2 and 3; however, due to the
SEWER REPORT 1
CRESCENT POINTE, TRACT 1
uncertainty of future development on the site, a 10" line will be installed from Node 3 to
Node 7 to insure adequate capacity.
The calculated slopes for each line indicate the slope needed to pass the amount of
wastewater that it is carrying at 2.0 feet /sec. In each case, the calculated slope is
compared to the minimum slope allowed by TCEQ. As long as the calculated slope is
lower than the required slope, the lines can be constructed at the TCEQ minimum slope
and still be expected to function appropriately. Slopes shown in red on Exhibit B fit
these criteria.
Conclusion
All of the lines in the spreadsheets on Exhibit B have computed slopes shown in
red that are less than the minimum required by TNRCC. Therefore, we conclude that
the lines are adequately sized and will easily carry the sewage flows that are
expected to pass through them.
SEWER REPORT 2
CRESCENT POINTE, TRACT 1
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