HomeMy WebLinkAboutSewer ReportSewer System Report
for
Cedar Creek Plaza
College Station, Texas
January, 2012
Prepared Bv:
Schultz Engineering, LLC
TBPE Firm No. 12327
P.O. Box 11995
College Station, TX 77842
2730 Longmire Drive, Suite A
College Station, Texas 77845
(979) 764-3900
y,t1,
F-12327
SCHULTZ ENGINEERING, U.C.
General Information
Location: Cedar Creek Plaza is located on North Graham Road between Holleman
Drive South Road and Old Wellborn Road.
General Note: This commercial lot will flow into the proposed public sanitary sewer
line to be constructed through the adjacent property. This sewer line will
connect to the existing 12" sewer line that crosses Rock Prairie Road
West.
Land Use: Commercial
Design Criteria
Primary Sewer Outfall.
An existing 12" sewer line.
Domestic Demand:
Total Fixture Unit Count. 144
Total Peak Demand: 54 gpm
10%Infiltration Assumed
Pipe: PVC ASTM D 3034 SDR 26
Applicable Exhibits: Exhibit A — Sanitary Sewer System Layout
Appendix A — Fixture Unit Determination
Appendix B — Sanitary Sewer Analysis Spreadsheet
Conclusion
The proposed 8" line flows into an existing manhole previously
constructed. The analysis in Exhibit B checks the calculated slope
required to pass the estimated flow against the design slope shown on the
plans. The spreadsheet indicates the design slope is greater than the
minimum computed slope, so we conclude that the system is more than
capable of carrying the anticipated flows from this phase and future
phases of the subdivision.
Exhibit B also shows the full flow velocity in the proposed lines to be 2.4
fps and the calculated peak flow velocity is 1. 73fps.
Appendix A
Normal Flow Calculations
Fixture Count Determination
Cedar Creek Plaza
Fixture Unit Value
Fixture Type # of Fixtures Load Factor Fixture Units
Bathroom Group
6
0
Kitcken Sink
9
1
9
Lavatory
18r
2
36
Urinal (valved
0
5
`� 0
Water Closet valve
0
_
10
_. �v 0
Water Closet (tank) i
18
4
72
Washer 9
0
4
0
Service Sink
9
3
27
Drinking Fountain
Total = 144
Demand - 54 gpm
m
LL
0
7
LL
P P
a oaLL
W �I
r. U
o �o
O
O
y Y
o v a
_ o 0
e
N
r
N 3�
e
c m c m 3
o
e
o
P
v
v o
�qv v�aw
c
o�
I
O
m
U
W
a
a.
d
E W_
G
N
O
9
m
h
Q'
U
rv_
rv_
C
CjC
O
A �
y w
0
0
c
e v
0
W
O
N
O
O
U
T^
W
C
G
U
6
sapoN un:aAsdn
a
'a
maj MO(j
Sunnq)Auoo
I
apoH o3
❑
a
a
apoH mad mold
cal
(sos qd Augslxa)
slo'j (enuop)sa-d
6 0
V
0
r p
s)o-I Iunuop!say
o
0
U
m
�
W
�