HomeMy WebLinkAboutWater Report WINN PROFESSIOINAL ENGINEERS
AND
CONSTRUCTORS, LLC
June 24, 2014
Mr. Kent Watson
Wickson Creek SUD
P.O. Box 4756
Bryan, Texas 77805
RE: State Highway 30 and Roans Chapel Road Commercial Development Service Study
Dear Kent:
The current KYPipe model for the Wickson Creek SUD system was used to perform a
water service analysis for a proposed commercial development located at the corner of
Texas State Highway 30 and Roans Chapel Rd., in the extraterritorial jurisdiction of
College Station, Texas. According to e-mail correspondence from the potential developer,
John Clark of Clark Isenhour Real Estate Services, LLC, the proposed commercial
development will be located on an 8.407 acre tract at the southwest corner of the
intersection, and the City will require a fire flow rate of 2,500 gpm from two adjacent
hydrants.
Our analysis indicates that fire flow service is available to provide the required fire flow
rate under peak demand conditions of 0.76 gpm per connection on the remainder of the
Wickson Creek SUD system with a residual pressure of 20 psi. The conditions used for
the modeling are summarized in Table 1.
In order to provide fire flow service to the proposed commercial development site, the
simulation indicates that a new 12" water line crossing of SH 30 will need to be installed.
The proposed 12" line will begin at the proposed development site, tie-in to the existing
Wickson Creek SUD 6" line running parallel to SH 30 on the west side, cross under SH 30
by boring and installing 12" restrained joint pipe in 18" steel casing by dry bore, and tie-
in to the existing Wickson Creek SUD 12" line running parallel to SH 30 on the east side,
as seen in Figure 1. Fire hydrant placement for the site will be contingent on the scope
of the proposed development; however, a minimum of two hydrants will need to be
installed on the water lines within the development property. A preliminary cost estimate
for the water line and associated appurtenances is provided as Table 2.
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9113-553 ()5AO • f 003-5'1'341555 • www.wtnapec com
Mr. Kent Watson
June 24, 2014
Page 2
We appreciate the opportunity to provide this information. Please do not hesitate to call
if you have any questions or comments.
Sincerely yours,
Winn Professional Engineers &Constructors, LLC
Texas Registered Firm No. F-7846
'44•
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Walter T. in , Jr., P.E. V:Ai TER T.MK JR,
Principal
WTW/pkw
Attachments
PAPROJECTS\02-WACIark Isenhour Real Estate Service,LLC Service Study\SH30RoansChapelServiceStudyLtr062414.doc
TABLE
WICKSON CREEK SUD
SH 30 AND ROANS CHAPEL RD.COMMERCIAL DEVELOPMENT SERVICE STUDY
PEAK DEMAND SYSTEM CONDITIONS
Following are notes of system conthtions for fire flow modeling:
, Sources of supply were as follows: 1) the 500,000 gallon Wickson Creek SUD Elevated
Tank at Plant 3 in the Steephollow area, 2)the pumped interconnection with the City of
Bryan (COB) Distribution System along Bullinger Creek Road, and 3)the 250,000 gallon
Wickson Creek SUD Elevated Tank in King Oaks.
• A demand of 0.76 gpm per conenction was applied to all of the service connections in the
Wickson Creek SUD system to represent the peak demand.
• Without the elevated tank at King Oaks, the calculated maximum delivery rate using the
existing distribution system piping io2.1D0gprnwhile keeping residual pressures above
20 psi.
^ To meet the desired fire flow rate without the King Oaks elevated tank, it will be necessary
to replace the existing 6"line along SH 30 with 10"line where the flow through the 6" line
is not supplemented by a parallel 8" line and 12" line.
• The Wickson Creek SUD SCADA system will be used to automatically operate the COB
pumped interconnect based on the level in the Plant 3 elevated tank. The level in this
tank will drop during a fire flow event.
• The COB interconnect on the 6" line along Boonville Road can be used to supplement the
fire flow rate. However, operation of the control valve is manual, and without the King
Oaks elevated tank, the additional capacity increases the fire flow rate to 2,200 gpm.
WPEC JUNE 2014
TABLE 2
WICKSON CREEK SUD
SH 30 AND ROANS CHAPEL RD. COMMERCIAL DEVELOPMENT SERVICE STUDY
PRELIMINARY COST ESTIMATE
Item Quantity Unit Unit Cost($) Cost($)
12"C900 PVC Restrained Joint Pipe w/Tracer Wire 220 L.P. 65.00 14,300
Bore and Install 18"Steel Encasement 210 L.P. 165.00 34,650
Tie-in New 12" Line to Existing 12" Line 1 EA. 5,000.00 5,000
Tie-in New 12" Line to Existing 6" Line 1 EA. 4,000.00 4,000
12"Gate Valve 2 EA. 2,000.00 4,000
6"Gate Valve 1 EA. 1,000.00 1,000
TOTAL CONSTRUCTION 63,000
Contingency(10%) 6,300
Basic Engineering 9,000
Surveying 3,000
Project Representative 2,500
TOTAL 83,800
WPEC JUNE 2014
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Schultz Engineering, LLC
Office: 979.764.3900
Fax: 979.764.3910
February 27, 2015
Alan Gibbs, P.E.
City Engineer
Development Services
City of College Station
College Station, Texas
RE: Letter Acknowledging City Standards—Roans Chapel Commercial Subdivision,
Brazos County, Texas
Dear Mr. Gibbs:
The purpose of this letter is to acknowledge that the construction plans for the water line,
for the above-referenced project, to the best of my knowledge, do not deviate from the
B/CS Design Guideline Manual.
Sincerely,
Deven L Doyen, P.E.
Civil Engineer
P.O. Box 11995 • College Station,Texas 77842
schultzengineeringllc.com
WICKS ON CREEK SPECIAL UTILITY DISTRICT
P.O. Box 4756
Bryan, Texas 77805-4756
Member Texas Rural Water Association 979-589-3030 Fax: 979-589-3275
www.wicksoncreek.com E-Mail: watson@wicksoncreek.com
03/27/15
Brazos County Road and Bridge
2617 W. Hwy 21
Bryan,Texas 77803
Re: Roans Chapel Commercial Subdivision
This is to advise you that Wickson Creek SUD does have the available capacity to service the Roans
Chapel Commercial Subdivision and we will provide water service to the Subdivision.
If you have any question please feel free to contact me.
Sincerely
Kent Watson,
General Manager
•
On Tap
Our Commitment ij Our Profession
Deven Doyen
From: David Hering <dhering@btutilities.com>
Sent: Friday, March 27, 2015 9:27 AM
To: Deven Doyen
Cc: Walter Williams
Subject: RE: Roans Chapel Commercial Subdivision
Deven,
BTU is okay with relocating the line in question at the developers expense. If anyone has any questions they are more
than welcome to contact me at the info below. Let me know if you need anything else.
Best Regards,
David Hering I Senior Line Designer
Bryan Texas Utilities
P. 979.821.5865
C. 979.450.3519
BlIV
From: Deven Doyen [mailto:deven@schultzengineeringllc.com]
Sent: Friday, March 27, 2015 7:48 AM
To: David Hering
Subject: Roans Chapel Commercial Subdivision
David,
I have been working with Walter on the relocation of the lines in the ROW on Roans Chapel, but can you confirm by
responding that BTU has approved the relocation of the line. The city wants confirmation that we are working with you
on this.
Thanks,
Deven Doyen, P.E.
Civil Engineer
Schultz Engineering, LLC
2730 Longmire Drive,Suite A
College Station, TX 77845
(979)764-3900—Office
(979)764-3910—Fax
deven@schultzengineeringllc.com
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