HomeMy WebLinkAboutWARWICK HOMES SITE PLANSTANDARD HCFCD NOTES FOR CONSTRUCTION DRAWINGS
1. Notify the Harris County Flood Control District, Property Management Department in
writing at least 48 hours prior to construction. Submit the HCFCD 48 hour pre -
construction notification form and a copy of the approved construction drawings to
HCFCD, 9900 Northwest Freeway, Houston, Texas 77092, Alto.: Property Management
Department.
2. Engineer shall submit certification letter and record drawings to the Harris County Flood
Control District, Property Management Department, requesting inspection of items
constructed in Harris County Flood Control District right-of-way. Prior to requesting
inspection, the drainage right-of-way and/or easements shall be staked and flagged.
3. Protect, maintain, and restore existing backslope drainage systems.
4. Backslope swale and interceptor structure elevations and locations shown on plans are
approximate. Final elevations and locations shall be field verified by the engineer prior
to installation.
5. Establish turf grass on all disturbed areas within the channel or detention right-of-way,
except the channel bottom and where structural erosion measures are used. Minimum
acceptance criteria are 75%coverage of live Bermuda brass and no erosion orrills deeper
than 4".
6. Backfrll in accordance with the Harris County Flood Control District Standard
Specification, Section 023 13 -Excavating andBackfrlling, or equivalent.
7. Excavate channel flowline to design elevation as shown on plans and downstream, as
necessary, to ensure no water in storm sewer during "dry" conditions.
8. Maintain flow in channel duringconstruction and restore channel to original condition.
9. Remove all excavated material from the Harris County Flood Control District or drainage
right-of-way. No fill is to be placed within a designated flood plain areawithout first
obtaining afill permit from the appropriate jurisdictional authority.
BENCHMARK:
USED FLOODPLAIN RIM NO. 020170, IS AN HCFCD ALUM DISC
STAMPED B 106 BM 02 ON BRIDGE AT EASTBOUND FAIRMONT
PARKWAY AND BIG ISLAND SLOUGH LOCATED ON DOWNSTREAM,
SOUTH SIDEWALK OF EASTBOUND BRIDGE, AT STREAM CENTER,
ELEV. 0 21.25 FT., NAVD 1988, 2001 ADJUSTMENT.
10. Obtain and comply with all applicable City, County, State, and Federal permits and 13LOCK 59
approvals, with assistance from Engineer, is necessary. 'TAIpMONf PAP.K M5f" 51 010N 6
map in Vol, 294, Pq,19 H,C,M,I:, I �
a I I I I ) 36
40 39 I 38 I 37 i \\
PLOCU --- I I 4z-
"PAI 0 T PAPK W�51 " 5�C110N 5 I 44 a3 • • / -
�j 7____ .. ..
Ima in ol, 29�t, Pq, �8 N,C,M.p. F.L �•• Nea5005E 923.
IA � _-------- &-- ----- - - - - - -
v, xaR,soti es sn a a 20' 91.00. w. _ - - -' -
Y-13. . e7 101.7r
I - ------
------------
�---
I
I a
i ` i PROP. DETENTION PON
I
(SEE OSS SECTIO
t j RESERVE "B" N
Z Z _ �tI �I sI 2.8959 ACRES
III
f ESTRICTED TO COMMERCIAL USE /.•
U I s I I i
RESERVE "A" I 20 I
1.5000 ACRES I I
a CEO m I' I (RESTRICTED TO COMMERCIAL 4EI i PROP. 8 LF-36" I
I I I Neat 3 E I HDPE, 0.25% I I
ram t vL 12os4) ' ' / I
Iowa X.
I i :� /
Y.ta a» e w 31
2o� u7
s9 einc_w_ 22
PROP. T p "C„ STM. S 11R. MH i
I I \ �. TR =FLUSH. NG
I 3l `i -ILIt� anL ESM M.
�' I » L = 13.29 (NE W)
OL 2a4, PQ 7e-79 H.O3,.R. gi i PROP. TYPE C STM. SWR. MH`- »
Ii �' TR =FLUSH W/ NG PLOP. 408 LF-24
FL = 14.20 (E) HD CAI 0.20% _T .-
II - - - - - - - r+__---.__-------------
i2l.
- _20' eno. w. L_ 1 --------t8-
---1------- ---
®_2.g1-g%=-- ..---urarroa'�-aza.eaEXI--' - - 5. „u-; • • VOL 294, PG. 7a H.C.M.R.
.. tom' a/ ....]2�-
FIN GRD (APPROX I 7'-6"
FI . 91 nn i
19'-0"
-EL - 19.50
1
SECTION B - B
PROPOSED EARTHEN OVERFLOW WEIR DETAIL
N.T.S.
T bi
Project Description
Worksheet
Circular Channel
Flow Element
ClrcularChannel
Method
Manning's Formu
Solve For
Discharge
Input Data
Mennings Coegic).012
PROP. LAGUSTRIUMS
3' CENTERS
FAIRMONT PARKWAY
a e
Rating Table for Circular Channel (250' ASPHALT R.O.W.)
SAVE & EXCEPT
0.47 ACRES
CITY OF LA PORTE
FOR LIFT STATION ACCESS
EXIST. 16" FORCE
DEER
PARK
�7c1<
ME
al a
LA PORTE
HARRIS �-
VICINITY MAP
NO SCALE
',i: �%ua (2e)
i FL = 6.53� I
eszat
- Y M.12 PROP. 68 LF-24" CMP
\ ® 0.20% W/ 6" PVC
RESTRICTOR (SEE DETAIL
THIS SHEET)
NOTE:
THE CONTRACTOR WILL REHAB AN
EXISTING OUTFALL.
Attribute Minimum Maximum Increment
Channel Slope (It/0)
0,002000
0.002600
0.000500
Depth (it)
2.00
3.00
0.60
Diameter (in)
24.0
38.0
6.0
Channel
Slope
(fU0)
Depth
(N)
Diameter
(In)
Discharg4
(cfs)
Velocity
(ftfs)
Flow
Area
(02)
Wetted
Perlmeler
(n)
Top
Width
(it)
0.002000
2.00
24.0
10.96
3A9
3.1
6.28
0.00
D.002600
2.00
24.0
12.25
3.90
3.1
6.28
0.00
0.002000
2.50
24.0
N/A
NIA
N/A
NIA
N/A
0.002500
2.60
24.0
N/A
N/A
N/A
N/A
N/A
0.002000
3.00
24.0
N/A
N/A
N/A
N/A
NIA
0.002600
3.00
24.0
NIA
N/A
N/A
NIA
NIA
0.002000
2.00
30.0
19.42
4.61
4.2
5.54
0.00
0.002500
2.00
30.0
21.72
6.16
4.2
5.64
0.00
0.002000
2.50
30.0
19.87
4.05
4.9
7.85
0.00
0.002500
2.50
30.0
22.22
4.63
4.9
7.86
0.00
0.002000
3.0D
30.0
NIA
NIA
NIA
N/A
NIA
0.002500
3.00
30.0
N/A
N/A
N/A
NIA
N/A
0.002000
2.00
36.0
25.33
5.06
5.0
6.73
0.00
D.002600
2.00
36.0
28.32
6.86
6.0
6.73
0.00
D.002000
2.50
36.0
32.78
6.21
6.3
6.90
0.00
0.002500
2.60
38.0
36.65
6.82
6.3
6.90
0.00
0.002000
3.00
38.0
32.31
4.57
7.1
9.42
0.00
0.002500
3.00
38.0
38.13
6.11
7A
9.42
0.00
ICK PLUG
2TAR SEAL
NOTES:
1. THE COORDINATES SHOWN HEREON ARE TEXAS SOUTH
CENTRAL ZONE NO. 4204 STATE PLANE GRID COORDINATES
(NAD83) AND MAY BE BROUGHT TO SURFACE BY APPLYING
THE FOLLOWING COMBINED SCALE 0.99987483.
2. TRACT IS IN ZONE "X" AND SUGHTLY IN ZONE "AE" AND
ONLY WITHIN 100 YR. FLOOD PLAIN IN AREAS SHOWN ON
PLAT PER FIRM NO. 48201C 0940L, 6/18/2007.
3. ZONED AS NEIGHBORHOOD COMMERCIAL (NC).
4. SCREENING AND/OR LANDSCAPING ADJACENT TO RESIDENTIAL
AREA SHALL BE REQUIRED IN ACCORDANCE WITH SECTION
106-444(A) OF THE CODE OF ORDINANCE.
5. PROPOSED USES SHALL BE STRICTLY RETAIL/COMMERCIAL/OFFICE.
6. EXTERIOR BUILDING DESIGN STANDARDS (FACADE ORD.) OF
100% MASONRY & GLASS PRODUCTS SHALL BE APPLICABLE
FOR THE PROPERTY.
7. NUMBER OF DRIVEWAYS ALONG FAIRMONT PARKWAY SHALL BE LIMITED,
TO ONE PER COMMERCIAL RESERVE.
ACCESS MANAGEMENT TECHNIQUES AND SHARED DRIVES SHALL BE APPLICABLE.
8. DRAINAGE MAINTENANCE SHALL BE THE
RESPONSIBILITY OF THE OWNER/DEVELOPER.
9. OWNER/DEVELOPER SHALL INSTALL SIDEWALKS ALONG
WILLMONT DRIVE AND FAIRMONT PARKWAY.
10. ALL INTERIOR UTILITIES WORK INCLUDING DRAINAGE COST/CONSTRUCTION ARE SOLE
RESPONSIBILITY OF THE OWNER/DEVELOPER.
SITE PLAN ACCURACY CERTIFICATE
I, HASSAN MOGHADDAM, P.E., am registered under the laws of the
State of Texas to practice the profession of engineering and hereby certify
that the above site plan is true and correct, and that all bearings, distances,
angles, curves, radii, and central angles are accurately shown onththe
�site
plan.
Hassan Moghaddam, P.E.
Texas Registration No. 43233
12'
Orifice Equation
Q=CA(2gH)^0.50
C.... ...... _... _ _...__...
. ___..__.... 0.80Area
0.1963
Diamter (in)
6.00
Head (ft)
1.00
(2gH)^0.50
8.0250
Q(CfS)
1.2599
_..__.-_........._.._.......... ....
100-year
---._._:.._._..._..._.._.
b
125.40
d
21.801
e
0.75
1
Area 1
i Area 2
Area (acres)
1.50
Cummulative Area (acres) 4.69
C
0.80
C 0.80
Tc (min)
20.74
:Tc (min) 23.13
7.53
I.. _. i-100(in/hour) 7.23
Q-100(cfs)
9.031
Q-100(cfs) 27.11
PROP. TOP OF CUT
EL = 21.00'
I/ EXIST. NG
21
18
15
12
9
6
21
18
15
TFALL
9
- 6
tfurlum = -I"uu � \- BOTTOM = 6.67
-80+00 -60+00 -40+00 -20+00 0+00 20+00 40+00 60+00 80+00
DETENTION POND TYPICAL SECTION A -A
1"=20' (HOR.)
1"=6' (VERT.)
Detention Calculations
Top Area @ WSEL 19.50' (ftA2) - - - 13,998.821 -
( Detention Required
R.M. No. 020170
Top Area @ WSEL 16 00' (ftA2)- - _ 6,52136
150 acre tract @ 9.45 acre-feet/acre 0.675
ALUM DISC
Average Area (ftA2) 10,260 09
2 8959 acre tract @ 0 25 acre-feet/acre 0.723
ELEV. ® 21.25 FT.
- -- - - - - -
Storage Depth (ft)_- 3.50:
- ---......- - -- - _ ...- -- -....
10.5159 acre tract @ 0.20 acre-feet/acre 0.103
_ .._..
Total Detention Re wired (PST7!eetL 1.501
\
Detention Provided (ft^3) 35,910.321 .
Top Area @ WSEL 16 00' (ftA2) 6,521:361
Note. 0.20 acre-feet/acre will be stored in the parking
Bottom Area @ 7..00' (ftA2) 701.93!
lot of the 2.8959 acre tract (0.58 acre-feet)
WARVdCK HOMES, INC.
WARWICK
MLMR PROPERTIES, LLC, A
Average Area (ftA2) 3,611.65I
65:
TEXAS LIMITED UABIUTY COMPANY
Aver
DEVELOPER:
Storage Depth(ft)_._
WARWICK HOMES, INC.
Detention Provided ftA3 32,504.81.
TOM CAUTHEN, PRESIDENT
PHONE: (713)385-1902-
.._..__._. _.__._._.._.,__ .._ .. .._...__�.._.. ......___... _.___,__.. _
..._.-__...... ....... .......: _....__.._
.. .-_., _._..,......__.__..
...__._....._........_................ ..._. _ _.: _......_......-------.._.._.
___...... _
SURVEYOR:
TotalDetentionP
Provided (ftA3) 68 415.12:
HE McKI A. M KINLEY
Total Detention Provided - .._ __ ._.. _...-__...
(acre-feet) 1.57:
..
........ .... ... ..__..___. ...__....... _....- ... .... ....
.....
' P.O. BOX 4218
....... ....... .. ... _;. ....
---..._.._._..... .-' --._. .... .. .. .. ...... .. ... ....._._---...
._........
PASADENA, TEXAS 77502
I
PHONE: (713)473-3502
FAX: (713)473-9601''..
CITY APPROVING AUTHORITY CERTIFICATE
THIS IS TO CERTIFY THAT THE CITY OF LA PORTE HAS APPROVED THIS SITE PLAN FOR STORM SEWER -
EXTENSION & DETENTION POND EXCAVATION IN CONFORMANCE WITH THE ORDINANCES OF THE CITY OF LA PORTS
BY:
DIRECTOR, PLA G DEP TMENT
BY:
CITY ENGINES
OF lii
2/14
let SUBMITTAL
HASSAN 61..... DDAM
HASSAN MOGHADDAM, P.E.
33k.. O . u4r�
ENGINEER
,�F'C/yq G\��
1
2109 San Miguel Drive
TEXAS 7546
1i�~FRIEND
OFFICE 281- 4,85-2404 E-MAIL hmoghaddam®yahoo.com
seal appebr(n�
Is document Was
WAR WI CK HOMES
authorized by
SSAN MOGHADDAM
P.E. 43233, on
STORM SEWER EXTENSION &
DETENTION POND EXCAVATION
10110 FAIRMONT PARKWAY
CITY OF LA PORTE
1"=60'
C•1