HomeMy WebLinkAboutCORRESPONDENCE l e July 25, 2003
>: , Development Services
8" c 1101 Texas Avenue South
i o u) College Station, TX 77840
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3 cn Attn: Bridgette George
4a 5 c c RE: Gateway Express Carwash Project Review
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U z 0 ai c D ear Bridgette,
°ZS ..a". 0 . 0 Attached you will find the Gateway Express Carwash conceptual site plan, landscape
L. 8 'c' ( 4 1 ) ° plan, color samples, elevations, and Special District Site Plan Review Form. We have
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0 'rn —° = rn submitted a conceptual site plan at this time to show the layout and location of the
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'- w v) '- proposed carwash. Please submit this material for the next Design Review Committee
C5 = m r' eeting.
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Thanks,
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2 Veronica J. "Mo ga .E. �'�r.,"
" L Managing Partner 1 t -�-�
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re z 1; Attached: Site Plans
' 5 Landscape Plans
® Color Samples
w Elevations
Special District Site Plan Review Form
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Bridgette George September 19, 2003
A ssistant Development Manager
COCS Development Services
1101 Texas Ave.
College Station, TX 77840
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p ` N RE: Gateway Express Car Wash
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N Dear Bridgette:
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V ,>. a .S.3) c Attac please find 10 folded copies of the site plan documents and 3 full sets of
06 e A- 8 ' E construction documents for the above referenced project. If you will recall we have
_ _ et — ° previously submitted a conceptual plan along with elevations, color samples �� 0) a: P Y p p g les and P
>.' o landscape plans for this project. This was to assure that the project concept, landscape
c w 8' c > and architectural details would be acceptable. These plans were approved. We have
of — ° °- '- now completed the site plan documents along with the drainage report for the project
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w 0 _ (Y) (7) and these are attached. Although you will see public infrastructure on these plans,
note they reference "by others ". This is because they were affiliated with the final plat
for this property. The only public infrastructure item being contemplated on these
W plans is the installation of a single sanitary sewer manhole. We believe that the
c ui contractor who will be installing the waterline (shown as "by others ") will be
1 p; installing this sewer manhole at the same time. Attached is a receipt for the $600
C = infrastructure fee that was previously paid for these improvements. Also please note
.0 47 L that we have already paid the $200 development permit fee and the $200 Special
m 2 V District Review Fee. Attached is the $200 Site Plan review fee. Please note on the
r ,; ' , 2 n site plan that we have requested the use of wheel stops along the Chicken Express
to o r .; property. We have done so because Chicken Express plans will be forthcoming within
•_ 8 a few weeks for review and approval. We don't feel as though we will ever need to
o n even install these wheel stops as both properties will most likely be under construction
y concurrently. We did however want to point this out because we realize that it is an
item that is not normally approved. If you have any questions please give us a call.
lways thanks for your help.
a. et
0 0 S , cerely,
Z B S , t' r di
oC u) H Veronica J.: or i tn,'' I .E.
• ui Managing Partner en
CI = v t Attachment(s)
J . N " • 10 Folded Copies of Site Plan
to 2 .. • 3 Civil Sets
• 1 Drainage Report
ry z yu 0 • 3 f Aleti La4`a(�k Dams
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September 22, 2003
Spencer Thompson
City of College Station
c rn Development Services
� � rn P.O. Box 9960
' c College Station, Texas 77840
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�o ._ Re: Drainage Requirements for Gateway Station, Chicken Express and Future Restaurant to
=-`v 'c c o U = a 0' be located on Lot 2RD
el A':" c Dear Spencer,
a
j c • E p The purpose of this letter is to discuss the drainage infrastructure required for the proposed
._ w — •5-, Gateway Station, to be located on Lot 2RB, Chicken Express, to be located on Lot 2RE, and
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the future unnamed restaurant, to be located on Lot 2RD of the Gateway Subdivision. The
W 0 = Ts N u) proposed development will heretofore be referred to as the Congleton property. Per the City
of College Station Drainage Policy and Design Standards (DPDS), detention is required to
store excess volumes of stormwater runoff and discharge it at a rate equal to or less than the
tti pre - development peak flow rate. As is the case with other properties in the Gateway
D. Subdivision, this detention requirement is fulfilled through the use of a regional detention
= W facility, located to the north of the College Station Home Depot. While the runoff from the
et MI a' Congleton property sites will not be discharged into the detention pond, the pond design
. p — provides excess stormwater detention for the contributing areas that will compensate for the
Z a s a`i volume increase on the adjacent properties after their respective development. The drainage
pp = ..e. v calculations, pipe design, and detention pond routing calculations for the Gateway Center are
en m f a detailed in the Drainage /Detention Report for the Home Depot (Bury & Partners -SA, Inc.,
n3 a re; 2002). These calculations include a post - development runoff coefficient of C =0.85 for
S drainage sub -basin 7. The drainage design for the Congleton property has a few variations
0 from the original report that have caused an increase in the peak flow for all of the relevant
ai rainfall events. The first of these is that the estimated runoff coefficient used in the Bury &
Partners report is C =0.85, lower than the majority of drainage basins within the Gateway
subdivision. There is no indication in the report as to why this assumption was made. The
actual runoff coefficient for the Congleton property is approximately C =0.88. In addition, an
5 p area calculation error was made for the Congleton property (drainage sub -basin 7) resulting in
N a difference of 0.27 acres. Finally, the Bury & Partners report used TxDOT IDF relationships
Q for Rational Method calculations instead of City of College Station IDF relationships. At the
0 a n direction of the City of College Station, the drainage design for the Congleton property
CL employs the TxDOT IDF curves in order to maintain consistency with the rest of the Gateway
IU a) M Subdivision. These differences result in an estimated flow increase of approximately 3.6 cfs
G H from the original Bury & Partners report. These increases were not in the original design;
`,,,,i- C i however, the Bury & Partners -SA, Inc. report demonstrated that significant reductions for total
1 . C 92 m peak runoff from the Gateway Subdivision will occur in all studied rainfall events. This
W a N � reduction is nearly 115 cfs for the 100 -year rainfall event. This should more than offset the
Z > CJ) ^ small increase resulting from variation in the estimated and actual drainage parameters.
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Exhibit 2 from the Bury & Partners drainage report shows Lot 2R (all included subdivisions)
located within the post - development drainage basin DA -1P. Exhibit 3 further demonstrates
that the lot is part of drainage sub -basin 7. In addition to evidence presented within the report
that only drainage basin DA -2P (32.5 ac.) is routed through the detention pond, StormCAD
outputs provide data indicating that drainage sub -basin 7 is included in the calculations for the
public 66" RCP (specified as a 60" RCP in the report) storm sewer, which is designed to
bypass the regional detention pond. As a result, the proposed Congleton property sites have
met the detention requirement specified in the College Station DPDS.
The stormwater runoff from the proposed developments enters the 66" RCP via a 24" RCP
connector. A grate inlet will be placed between Lots 2RB and 2RD and sized for the 100 -year
rainfall event. The water will then be carried through the 24" connector to a junction box at
the northeast end of the development. From there it will be carried in a 24" RCP and tied into
the existing 66" RCP storm sewer approximately 45 ft downstream of the nearest junction
box. Ultimately, the resultant flow will be discharged into Burton Creek. In order to
minimize disturbance to the existing storm sewer, no junction box will be placed at the
proposed connection. While not standard practice, the 66" pipe provides adequate access to
the proposed 24" RCP if maintenance is required. The carwash drainage infrastructure,
including connection pipes and grate inlet sizes and locations, is detailed in Sheet 1 of the
Gateway Station construction drawings. In addition, Hydraulic Grade Line calculations were
performed for the 66" RCP storm sewer in order to assess the effects of the existing water
surface on the proposed inlet. New calculations were performed because the Bury & Partners
drainage report included the design of a 60" RCP storm sewer that has since been modified to
a 66" RCP. The HGL at the proposed Congleton property inlet is approximately 272.02 ft,
providing more than a foot of clearance between the water surface and the proposed top of
grate. Drainage, pipe sizing, and hydraulic grade calculations have been provided as
Appendices A -1, A -2 and A -3. Review of the stormwater analysis indicates that the drainage
design presented in this report accounts for detention and will provide ample conveyance to
meet the drainage objectives of the City of College Station Drainage Policy and Design
Standards.
If ou have any questions or comments, please feel free to contact me.
S merely,
Iiii,,,
Veronica J.B orga P.
Managing Pa ner `
Cc: File
Drew Congleton, Owner
Frank Mihalopoulos, Del Mar Realty Investors
Attachments:
Excerpts from Bury & Partners, Inc. Drainage /Detention Report for the Home Depot,
August 2002
Mitchell & Morgan Drainage Calculations
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1 Hydrograph Report
r. Page 7
English
Hyd. N o. 2
I Post Developed Conditions
�
0 Hydrograph type = Rational Peak discharge = 315.24 cfs
Storm frequency = 100 yrs Time interval 1 min
D�eea 32.5 tic Runoff coeff. = 0.9
0 Intensity = 10.78 in Time of conc. (Tc) = 12 min
I -D -F Curve = Brazos.IDF Reced. limb factor = 2
Total Volume = 340,462 cuft
Hydrograph Discharge Table
0 Time -- Outflow Time -- Outflow
• (min cfs) (min cfs)
1 1 26.27 33 39.41
2 5254 34
3 7 13.14
ID 881
4 105.08
5 131.35 ...End
6 157.62
7 183.89
I 8 210.16 .
9 236.43
10 262.70
. 11 288.97
12 315.24
i 13 302.11
14 288.97
15 275.84
16 262.70
17 249.57
. 18 236.43
19 223.30
• 20 210.16
21 197.03
22 183.89
23 170.76
24 157.62
ID 25 144.49
26 131.35
• 27 118.22
28 105.08
ID 29 91.95
30 78.81
31 65.68
• 32 52.54
ID
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Hydrograph Report Page 1
English
Hyd. No. 2
Hydrograph type = Reservoir Peak discharge = 74.49 cfs
Storm frequency = 100 yrs Time interval = 1 min
Inflow hyd. No. = 1 Reservoir name = POND
Max. Elevation = 264.74 ft Max. Storage = 263,053 cuft
Storage Indication method used. Total Volume = 339,706 cuft
Hydrograph Discharge Table
Time Inflow Elevation Clv A Clv B CIv C CIv D Wr A Wr B Wr C Wr D Outflow
- ) ft cf cfs cfs cfs cfs ci s cfs cfs cfs
0 105.08 cfs 261.28 0.5 7 0.57 - --- - -- - - - 1.15
0.08 131.35 261.43 1.31 1.31 - - -- - - -- - - - - 2.62
0 157 261 -- - - - - - - 4.57
0.12 183.89 261.84 3.79 3.79 ----- - -- - -- - - -- 7.59
0.13 210.16 262.06 5.64 5.64 - -- - -- -- _- _ -_- 11.28
0.15 236.43 262.25 6.92 6.92 - -- - -- - - -- - - -- 13.83
0.17 262.70 262.46 8.94 8.94 - - -- - - -- - - -- - - -- - -- 17.88
0.18 288.97 262.69 10.68 10.68 - - -- - - -- - - -- 21.36
ND 0.20 31024 « 262.03 12.53 12.53 - - -- 25.05
0.22 302.11 263.15 14.35 14.35 ---- 28.69
0 0.23 288.97 263.35 15.70 15.70 -- - -- -_ -- 31.39
IP 0.25 275.84 263.54 16.69 16.69 - ` - 33.37
0.27 262.70 263.71 17.51 17.51 ____ __- _ - -_ 35.01
NO 0.28 249.57 263.88 17.93 17.93 - - -- - _- 35.86
0.30 236.43 264.02 18.64 18.64 37.28
II 0.32 223.30 264.14 22.83 22.83 -- _ 45.65
0.33 210.16 264.25 26.00 26.00 52.01
ID 0.35 197.03 264.35 28.53 28.53 - -__ __ -- __ -- 57.06
0.37 183.89 264.43 30.58 30.58 - - -- - - -- 61.17
MI 0.38 170.76 264.50 32.28 32.28 - - -- 64.56
0.40 157.62 264.57 33.64 33.64 - - -- _ 67.28
0.42 144.49 264.62 34.76 34.76 --- - - -- - - -- - -- 69.52
le 0.43 131.35 264.66 35.64 35.64 _ -_ 71.27
0.45 118.22 264.70 36.32 36.32 - 72.65
Pi 0.47 105.08 264.72 36.80 36.80 - - -- _W 73.61
0.48 91.95 264.74 37.11 37.11 74.21
• 0.50 78.81 264.74 « 37.24 37.24 ----- ---- ----- ---- ----- 74.49 «
ID 0.52 65.68 264.74 37.22 37.22 - - -- - - -- 74.43
0.53 52.54 264.73 37.03 37.03 - - -- - - -- 74.06
le 0.55 39.41 264.71 36.69 36.69 _ -_ -_ 73.37
0.57 26.27 264.69 36.18 36.18 72.36
• 0.58 13.14 264.65 35.50 35.50 - - -- _ - -_ 71.01
0.60 0.00 264.61 34.68 34.68 69.35
le 0.62 0.00 264.57 33.75 33.75 - - -- 67.50
0.63 0.00 264.53 32.83 32.83 - - -- -- 65.65
0.65 0.00 264.49 31.91 31.91 _ -__
- - -- 63.82
NI Continues on next page...
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November 26, 2003
Veronica J.B. Morgan, P.E.
Mitchell & Morgan, LLP
511 University Drive East
Suite 204
College Station, TX 77840
Re: Congleton Carwash Water Requirements
Dear Veronica,
Attached is the Super 5000. Our
he water requirement specification sheet from D 8 for he Sup
facility will have two machines. The p eak demand
If you have any questions please give me a call.
Sincerely, /
�•
Drew ongleton
Vice President
Attachments
Cc: File
03 D 3 3
i December 4, 2003
Spencer Thompson
rn rn COCS- Development Services
c "A P.O. Box 9960
t - A vi o , College Station, TX 77840
to c
C -v � c . ' as as Re: Gateway Express Carwash
U = a �c
DS - C' 1 ' E Dear Spencer,
0 -c v
'' � o Attached you will find additional information
originally for Gateway
us for theExpress
water Carwash.
demands
C .r W c .. c 6 cm :N This information is a revision to so g Y sent to
CP _ . a $ for the project. Please note that the demands are higher than originally anticipated.
max. These new
w u = �, �, Our original site plan had the peak m water Candemap please ge numbers on your
demands place that peak at 148 gp you
site plan and change the water meter service appropriately.
ui
0 If you have any questions please give me a call.
c W
a
t i r: Sincerely, . L4-
I g2 ..c to Lt, • --- \I v
all 7 R9 LIA,,L t-f 'e . tatACCL__,_ P 21 E a
10 c Veronica J.B. Morgan, P.E.
C a5 Managing Partner
C o
O
Attachments
Cc: Bridgette George, COCS- Development Services
Carl Warren, COCS- Development Services
N c Drew Congleton, Gateway Fuels, LLC
Z d
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o ra
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rt , E l'i V
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Nov 26 03 11:05a D S MFG CO INC
636 677 4105 p, �!
DS SUPER 5000
EQUIPMENT ROOM INSTALLATION
REQUIREMENTS
Electrical Requirements: 240VAC, 3Phase, 4 Wire,
100 Amp Service (Industrial. Motor Rated Breaker)
208VAC, 3 PHASE, 4 Wire,
125 Amp Service (IndustriaLMotor Rated Breaker).
NOTE: Tke service amps Listed above are for the
Super 5000 only . Dryer motors are rated at
50 amps per motor @ 24OVAC 3Ph.
Water Requirements: 2" Main Water Supply
A) Pumping Unit: 1" Cold Soft Water (j 40 PSI, Minimum 25 GPM x z = So
B)
'/z" Hot, Soft Water L 40 PSI, 12GPM, from heater to Presoak Tank x = `!
l iydmm indcr. x t = 10
C) RO= 10 GPM @35 PSI
D) Chemical Hydrominders = 12 GPM (a7 40 PSI for 2 hydrominders. x z = 2
E) Twin tank Water Softener during Regeneration = 38 -40GPM @ 40 x t ma
PS I
NOTE: WATER PRESSURE MAY VARY FROM AREA TO AREA
SPEC THE WATER MAIN SIZE USING LOCAL WATER
CONDITIONS.
Air Requirements: Minimum: 5 HP, 14.5 cfm @ 175 PSI with main line regulator
set at 90 PSI and automatic drain.
Note: See Pictures and drawings for visual aid during "Hook - ".
•
December 4, 2003
' 71 7)
i
Spencer Thompson V _�
v► COCS- Development Services
i °' �3 P.O. Box 9960
c College Station,
TX 77840
in :° _ _ Re: Gateway Express Carwash
C -a � c a s
oz c ' E Dear Spencer,
e _ � ,
ress Carwash.
W Attached you will find additional information or sent to us for the p wate d demands
°' � N This information is a revision to some originally inall anticipated.
� � �
at = ° � for the project. Please note that e demands ter demands at water gpm o m x. These new
W U _ �, in Our original site plan had the p m Can you please revise these numbers on your
demands place that peak at 148 gp
site plan and change the water meter service appropriately.
ive me a call.
� W
If you have any questions please g
to ti
Sincerely,
• R. o R. s V-lC
ai
rn ; 1 .
f r; Veronica J.B. Morgan, P.E.
5 Managing Partner
o
Attachments
Cc: iiWittetkidge, COCS Development Services`
D. Carl Warren, COCS- Development Services
j N Drew Congleton, Gateway Fuels, LLC
a
ct:
ui
f a
w_
rt v •.•
e U u
November 26, 2003
Veronica J.B. Morgan, P.E.
Mitchell & Morgan, LLP
511 University Drive East
Suite 204
College Station, TX 77840
Re: Congleton Carwash Water Requirements
Dear Veronica, fr
Attached is the water requirement specification a will be 148 GPM.
Super 5000. Our
facility will have two machines. The peak demand
you have any questions please give me a call.
Sincerely,
Drew (,ongleton
Vice President
Attachments
Cc: File
Nov 26 03 11:05a D 5 MFG CO INC
636 677 4105 p.4
DS SUPER 5000
•
EOUIPMENT ROOM INSTALLATION
REOUIREMENTS
Electrical Requirements: 240VAC, 3Phase, 4 Wire,
100 Amp Service (IndustriakMotor Rated Breaker)
208VAC, 3 PIIASE, 4 Wire,
125 Amp Service (Industrial Motor Rated Breaker)
NOTE: Tke service amps listed above are for the
Super 5000 only . Dryer motors are rated at
SO amps per,notor Qa 24OVAC 3Ph.
Water Requirements: 2" Main Water Supply
A) Pumping unit: 1" Cold Soft Water (4 40 PSI, Minimum 25 GPM x z = So
8) '' /z" Hot, Soft Water @ 40 PSI, 12GPM, from boater to Presoak 'lank x =
liydromindcr.
C) RO - 10 GPM @ 35 PSI
D) Chemical Hydrominders = 12 GPM (a7 40 PSI for 2 hydrominders. x 2 ` 2y
E) Twin tank Water Softener during Regeneration — 38 -40GPM (a7 40 t WO y
PSI 4110 PM
lea
NOTE: WATER PRESSURE MAY VARY PROM AREA TO AREA
SPEC THE WATER MAIN SIZE USING LOCAL WATER
CONDITIONS.
Air Requirements: M um: 5 111', 14.5 cfm @ 175 PSI with main line regulator
set at 90 PSI and automatic drain.
Note: See Pictures and drawings for visual aid daring "Hook -Vp ".
Page 1 of 1
Susan Hazlett - PDMT: Automatic Car Wash behind Douglass Nissan: Steve Wise:
936- 494 -2989
,�� ��.i a � + �sw���Ri�n�u��Em, n�anm�d�w���u��meu�i�n�wummmiw�nimnnnu�mm�an��w�na�nMm
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From: Tammy Macik
To: Pre D Group
Date: 3/10/03
Time: 3:00 PM - 4:00 PM
Subject: PDMT: Automatic Car Wash behind Douglass Nissan: Steve Wise: 936- 494 -2989
Place: Administrative Conference Room
Mr. Wise is wanting to put an Automatic Car wash behind the existing Douglass Nissan Dealership at the
corner of University and SH 6. That would require breaking up the existing concrete slab and making the
new slab contour for the water flow. He is faxing in the plans today or tomorrow by 5.
Thanks,
Tammy Macik <><
Secretary
City of College Station
-979- 764 -6254-
"This e -mail message is for the sole use of the intended recipient(s) and may contain confidential and
privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are
not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original
mesage. Thank you."
file: / /C: \WINDOWS \TEMP \GW } 00001.HTM 3/10/03
usan Stanley - Fwd: Gateway Carwash Co Request Page 1
From: Bridgette George
To: Customer Service Reps; Lance Simms
Date: 6/3/2004 3:30:21 PM
Subject: Fwd: Gateway Carwash Co Request
FYI, we need the following addressed before issuing the CO. Please let me know if I need to pass this on
to the contractor. Thanks!
Bridgette George
Asst. Development Manager
City of College Station
P.O. Box 9960
College Station, TX 77842 -9960
979.764.3570
bgeorge @cstx.gov
www.cstx.gov
»> Jennifer Reeves 6/3/2004 2:36:26 PM »>
Crissy and I did a site visit this morning and discovered the following:
1) 3- missing Burford Hollys
2)12- missing Indian Hawthorns
3)2- missing Canopy Tree's
4)No ground cover (calls for sod and there is dirt)
5)Two timers for the car wash dryers (BIG BLOWERS) have been installed out in the middle of the
pavement as you exit the car wash. This was not on the approved site plan and is considered a safety
hazard because they are sticking about 4 -feet above the pavement. These should have been on the site
plan shown in a protected island or bollard protected. Please let us know if we need to do anything else.
Thanks, Reeves :o)
Jennifer Reeves
Staff Planner
City of College Station
jreeves
(979) 764 -3570
(979) 764 -3496 FAX ��$