HomeMy WebLinkAbout2459+Underwood+FINALPRE-DEVELOPMENT DRAINAGE PLAN
TOPO SURVEY
CIVIL:
COVER SHT.
DRAWING NO. TITLE
C-2.0
C-1.1
C-1.0
-
SITE PLAN
SWPPP PLAN
C-3.1 SWPPP DETAILS
LA PLAZA
C-3.0
LA PORTE, TX 77571
2459 UNDERWOOD ROAD,
LANDSCAPING PLAN
DRAWING INDEX
SCOPE OF WORK:
PROPOSED GAS STATION WITH CANOPY,
SHOPPING CENTER
HOUSTON, TX 77094
P. O. BOX 940161
TEL: 713-298-0297 FAX: 281-239-2710
MAK Design & Drafting LLC
JIN LEE
OWNER
CITY OF LA PORTE
C-5.0
48 HOUR NOTICE:
CONTRACTOR SHALL NOTIFY HARRIS COUNTY PRIOR TO COMMENCING
CONSTRUCTION AND / OR BACKFILLING ANY UTILITIES. CONTRACTOR(S)
TO CONTACT PUBLIC REVIEW DEPARTMENT @ (713-274-3931) OR
PUBLIC.REVIEW@HCPCID.ORG
C-2.1 DRAINAGE AREA MAP
C-2.2 PROPOSED DRAINAGE PLAN
C-1.3
C-1.2 PAVING PLAN
SITE DETAILS
C-2.3 DRAINAGE CALCULATIONS
- PLAT
-
TRAFFIC CONTROL PLAN
C-4.0 UTILITY PLAN
C-4.1 DETAILS
C-4.2 DETAILS
C-4.3 DETAILS
CBG
TEXAS
N
PLAN
SHEET
C-1.0
TITLE
PROJECT
SITE
HOUSTON, TX 77094
P.O.BOX 940161
TEL: 713-298-0297 FAX: 281-239-2710
201919
07-01-19
PROJECT NO.
DATE
SCALE
1 = 30- 0
JIN LEE
OWNER
MAK Design & NO ISSUE / REVISION DATE
Drafting LLC
MAK
Engineering
F-12117
LA PORTE, TX 77571
2459 UNDERWOOD RD.
LA
PLAZA
NOTE:
FUEL DISPENSING SHALL BE PROHIBITED WITHIN 25 FEET OF
ANY SOURCE OF IGNITION (2018 IFC SECTION 5706.4.5(17))
City Approving Authority certificate:
This is to certify that on ________day of _________, 20__ the City of La Porte,
Texas, has approved this site plan and development of LA PLAZA in
conformance with the ordinances of the City of La Porte.
By:
______________________________
Director, Plannin g and Development
______________________________
City Planner
_______________________________
City Engineer
16th June 21
This Drawing has been reviewed and found to be:
in compliance not in compliance (see markups) -> RESUBMIT
Approval of these plans does not relieve the contractor of responsibility of
ensuring proper construction per City ordinances. Any deviation from approved
plans must be submitted to the City for review and approval prior to construction.
Date: ________________ By:
6/22/2021
X
CBG
TEXAS
N
PLAN
SHEET
C-1.1
TITLE
PROJECT
LANDSCAPING
HOUSTON, TX 77094
P.O.BOX 940161
TEL: 713-298-0297 FAX: 281-239-2710
201919
07-01-19
PROJECT NO.
DATE
SCALE
1 = 30- 0
JIN LEE
OWNER
MAK Design & NO ISSUE / REVISION DATE
Drafting LLC
MAK
Engineering
F-12117
LA PORTE, TX 77571
2459 UNDERWOOD RD.
LA
PLAZA
CBG
TEXAS
N
PLAN
SHEET
C-1.2
TITLE
PROJECT
PAVING
HOUSTON, TX 77094
P.O.BOX 940161
TEL: 713-298-0297 FAX: 281-239-2710
201919
07-01-19
PROJECT NO.
DATE
SCALE
1 = 30- 0
JIN LEE
OWNER
MAK Design & NO ISSUE / REVISION DATE
Drafting LLC
MAK
Engineering
F-12117
LA PORTE, TX 77571
2459 UNDERWOOD RD.
LA
PLAZA
SITE
4 1/2"
...
CEMENT CONCRETE, 5 SACK CEMENT PER CUBIC YARD, 7 INCHES
PROPERTY, SAID DRIVEWAYS SHALL BE SEPARATED BY A MINIMUM
10. IF MORE THAN ONE PROPOSED DRIVEWAY IS BUILT ON THE SAME
DISTANCE OF 20 FEET (ROADWAYS WITH CURBS AND SIDEWALKS).
SUBGRADE. (3 INCHES MANUFACTURED CHAIRS ARE REQUIRED WITH
11. REINFORCING STEEL TO BE ELEVATED A MINIMUM OF 3" ABOVE
MAXIMUM SPACING OF 72 INCHES C/C EACH WAY).
THICK, FROM PROPOSED SAW CUT TO RIGHT-OF-WAY LINE
LAP (6"x12" W5xW4 AS ALTERNATE) FROM PROPOSED SAW CUT
SPACED AT 24 INCHES C.C., EACH WAY, WITH 10 INCHES MINIMUM
4. PROPOSED DRIVEWAY REINFORCING STEEL IS TO BE #4 DEFORMED
EXISTING ROADWAY REINFORCING STEEL WITH A MINIMUM LAP
5. PROPOSED DRIVEWAY REINFORCING STEEL IS TO BE TIED TO
6. PROPOSED GUTTER LINE IS TO BE MAINTAINED AT FACE OF
7. SAW CUT EXISTING CURB AT EACH END AND KNOCK OUT CURB
FROM BEGINNING TO END OF PROPOSED DRIVEWAY.
FROM FACE OF CURB (GUTTER LINE) AND BREAK OUT TO EXPOSE
8. SAW CUT EXISTING PAVEMENT A MINIMUM OF 12 INCHES AWAY
PROPOSED SAW CUT AT EXISTING PAVEMENT TO RIGHT-OF-WAY
9. COMPACT SUBGRADE FOR PROPOSED DRIVEWAY CONNECTION FROM
LINE, COMPACT TO 95% OF STANDARD PROCTOR DENSITY (+/-
2% OPT. MOISTURE). THE COUNTY ENGINEER RESERVES THE
RIGHT TO REQUIRE LABORATORY TESTS TO BE CONDUCTED.
(PROPERTY LINE).
TO RIGHT-OF-WAY LINE.
OF 8 INCHES.
EXISTING CURB.
EXISTING REINFORCEMENT STEEL.
1. PROPOSED DRIVEWAY, SIDEWALK, CURB, GUTTER LINE AND GRADE
2. PROPOSED SIDEWALK SHALL BE CONSTRUCTED WITH PORTLAND
3. PROPOSED DRIVEWAY SHALL BE CONSTRUCTED WITH PORTLAND
CEMENT CONCRETE, 4-1/2 SACK CEMENT PER CUBIC YARD, 4-1/2
INCHES THICK AND 4 FEET MINIMUM WIDTH. SEE DRAWING
NO.3 FOR ADDITIONAL INFORMATION AND DETAILS.
SHALL MATCH EXISTING STREET.
GENERAL NOTES:
R.O.W. LINE
18"
STANDARD
(SEE GENERAL NOTE NO.7)
3" CLEARANCE (TYP.)
7" THICK REINFORCED CONCRETE
3" CLEARANCE
12"
6"
PAVEMENT
CUT UNDER
EXISTING
6"
24"
NEW PAVEMENT
EXISTING PAVEMENT
GUTTER LINE
8" STEEL OVERLAP
12"
PROP. SAW CUT
PREFORMED JOINT
MAK Design &
Drafting LLC
MAK
Engineering
F-12117
CBG
TEXAS
N
0.18
A-11
0.15
A-3
0.15
A-5
0.18
A-6
0.19
A-4
0.22
A-8
0.17
A-9
0.20
A-10
0.19
0.17 A-1
A-2
0.19
A-7
ACREAGE
DRAINAGE AREA
AREA MAP
SHEET
C-2.1
TITLE
PROJECT
DRAINAGE
HOUSTON, TX 77094
P.O.BOX 940161
TEL: 713-298-0297 FAX: 281-239-2710
201919
05-25-20
PROJECT NO.
DATE
SCALE
1 = 30- 0
JIN LEE
OWNER
MAK Design & NO ISSUE / REVISION DATE
Drafting LLC
MAK
Engineering
F-12117
LA PORTE, TX 77571
2459 UNDERWOOD RD.
LA
PLAZA
Δ
Δ
Δ
BOP AREA
4913 S.F.
GUY WIRE
OHP OHP
10.0'
10.0'
21.0'
√
STM STM STM ST
M STM STM STM STM STM STM STM STM
STM STM STM STM STM STM STM STM S
TM STM STM STM STM STM STM STM ST
M STM
STM STM STM STM STM STM S
TM STM STM STM STM STM STM STM ST
M STM
STM STM STM STM STM STM STM STM S
TM STM STM STM STM STM STM STM ST
M STM STM STM STM STM STM STM S
TM STM STM STM STM STM STM STM STM
STM STM STM STM STM STM STM STM S
TM STM STM STM STM STM STM STM S
TM STM STM STM STM STM STM STM STM
STM STM STM STM STM STM STM STM ST
M STM STM STM STM STM STM STM
STM S
TM STM STM STM STM STM STM STM ST
M STM STM STM STM STM STM
STM STM
STM STM STM STM STM STM
PROP. 90 LF 24" Ø
PVC @ 0.20% SLOPE
BOP ELEV. 17.0
TC 26.75
TC 26.25
TC 26.75
TC 26.75
TC 26.75
TC 26.75
8100 S.F.
TP 25.75
TP 25.75
TP 25.75
TP 25.75
TP 25.75
TP 25.75
TP 25.75
TP 25.75
TP 25.75
TP 25.75
TC 26.25
TP 25.75
TC 26.25
TP 25.75
TC 26.25
TP 25.75
TC 26.25
TP 25.75
TC 26.25
TP 25.75
I = b
(d + Tc)e
Tc = 10A 0.1761 + 15
RAINFALL INTENSITY :
INITIAL TIME OF CONCENTRATION:
VELOCITY V = 1.49
n
R 2/3 S1/2
PIPE DISCHARGE Q = VA
WHERE, A = D
4
2
CALCULATIONS
SHEET
C-2.3
TITLE
PROJECT
DRAINAGE
HOUSTON, TX 77094
P.O.BOX 940161
TEL: 713-298-0297 FAX: 281-239-2710
PROJECT NO.
DATE
SCALE
N.T.S.
OWNER
MAK Design & NO ISSUE / REVISION DATE
Drafting LLC
MAK
Engineering
F-12117
1. STORM SEWER PIPE USE FOR CONNECTION TO STORM SEWER IN PUBLIC R.O.W. SHALL BE REINFORCED CONCRETE PIPE ASTM C-76, CLASS III, WITH RUBBER
GASKET PER ASTM C-443 AND SHALL EXTEND TO FIRST INLET OR MANHOLE. ALL OTHER PRIVATE STORM SEWER MAY BE H.D.P.E. OR APPROVED EQUAL.
2. STORM SEWER SHALL BE CONSTRUCTED IN ACCORDANCE WITHTHE LATEST HARRIS COUNTY STANDARD CONSTRUCTION SPECIFICATIONS FOR STORM DRAINAGE
INCLUDING ALL CURRENT AMMENDMENTS THERETO.
3. ALL SEWER UNDER PROPOSED OR FUTURE PAVEMENT AND TO POINT ONE (1) FOOT BACK OF ALL PROPOSED OR FUTURE CURBS SHALL BE BACKFILLED WITH 1
1
2
SACK CEMENT/C.Y. STABILIZED SAND TO WITHIN ONE (1) FOOT OF SUBGRADE. CEMENT STABILIZED SAND TO BE IN ACCORDANCE WITH THE REQUIREMENTS OF ASTM C
33, LATEST EDITION.
RUN OFF Q A = CIA
DETENTION PROVIDED :
PARKING LOT DETENTION STORAGE VOLUME PROVIDED =0.7 AC-FT
DETENTION SUMMARY
TOTAL IMPERVIOUS AREA = 2.41 ACRE = 105,026 SF
EXISTING PERVIOUS AREA = 0
DETENTION VOLUME REQUIRED = 2.23 AC X 0.75 AC-FT/AC
PROPOSED BUILDING 20,040 S.F.
FUTURE LAND DEVELOPMENT = 0
DETENTION RATE = 0.75 AC-FT/AC
= 1.7 AC-FT
TOTAL DETENTION STORAGE VOLUME PROVIDED = (0.7 + 1.7) AC-FT= 1.7 AC-FT
DETENTION POND STORAGE VOLUME PROVIDED = 1.0 AC-FT
TOTAL DETENTION STORAGE VOLUME PROVIDED = TOTAL DETENTION STORAGE VOLUME REQUIRED
24" PVC
6" PVC
PIPE
RESTRICTOR
NOTE:
1. RESTRICTOR PIPE SHALL BE GROUTED IN PLACE FROM END TO END.
CBG
TEXAS
N
MYRTLE CREEK DRIVE
UNDERWOOD ROAD
NOTE:
1. WORK THIS DRAWING WITH HARRIS COUNTY
PAVEMENT CNST & MARK DET. DRAWING
STABILIZED CONSTRUCTION EXIT
INLET PROTECTION BARRIER (IPB)
LEGENDS:
PROPOSED INLET
SC
FILTER FABRIC FENCE
WORK THIS DRAWING WITH SITE
PLAN FOR DETAILS.
NOTE:
(STAGE I AND STAGE II PROTECTION REQUIRED)
2. ALL INLETS IN PROPOSED PAVED AREA NEEDS
STAGE I AND STAGE II INLET PROTECTION.
IPB
IPB
IPB
IPB
IPB IPB
IPB
IPB
IPB
IPB
SC
SC
PLAN
SHEET
C-3.0
TITLE
PROJECT
SWPPP
HOUSTON, TX 77094
P.O.BOX 940161
TEL: 713-298-0297 FAX: 281-239-2710
201919
05-25-20
PROJECT NO.
DATE
SCALE
1 = 30- 0
JIN LEE
OWNER
MAK Design & NO ISSUE / REVISION DATE
Drafting LLC
MAK
Engineering
F-12117
LA PORTE, TX 77571
2459 UNDERWOOD RD.
LA
PLAZA
Δ
Δ
Δ
CBG
TEXAS
N
“
”
–
“
”
“
”
’
“ ”
’
PLAN
SHEET
C-4.0
TITLE
PROJECT
UTILITY
HOUSTON, TX 77094
P.O.BOX 940161
TEL: 713-298-0297 FAX: 281-239-2710
201919
07-01-19
PROJECT NO.
DATE
SCALE
1 = 30- 0
JIN LEE
OWNER
MAK Design & NO ISSUE / REVISION DATE
Drafting LLC
MAK
Engineering
F-12117
LA PORTE, TX 77571
2459 UNDERWOOD RD.
LA
PLAZA
DETAILS
SHEET
C-4.1
TITLE
PROJECT
PROJECT NO.
DATE
SCALE
N.T.S.
OWNER
NO ISSUE / REVISION DATE
HOUSTON, TX 77094
PO BOX 940161
TEL: 713-298-0297 FAX: 281-239-2710
MAK Design &
Drafting LLC
201918
JIN LEE
03-15-21
LA
PLAZA
LA PORTE, TX 77571
2459 UNDERWOOD ROAD
DETAILS
SHEET
C-4.2
TITLE
PROJECT
PROJECT NO.
DATE
SCALE
N.T.S.
OWNER
NO ISSUE / REVISION DATE
HOUSTON, TX 77094
PO BOX 940161
TEL: 713-298-0297 FAX: 281-239-2710
MAK Design &
Drafting LLC
JIN LEE
03-15-21
201918
LA
PLAZA
LA PORTE, TX 77571
2459 UNDERWOOD ROAD
MAK
Engineering
F 12117
SIDE VIEW
PLAN VIEW
INLET
FROM INTERCEPTOR
OUTLET
TO SEWER
JOINT SEALED w/
NONSHRINK GROUT
JOINT SEALED w/
NONSHRINK GROUT
FRONT VIEW
DETAILS
SHEET
C-4.3
TITLE
PROJECT
PROJECT NO.
DATE
SCALE
N.T.S.
OWNER
NO ISSUE / REVISION DATE
HOUSTON, TX 77094
PO BOX 940161
TEL: 713-298-0297 FAX: 281-239-2710
MAK Design &
Drafting LLC
JIN LEE
03-15-21
201918
LA
PLAZA
LA PORTE, TX 77571
2459 UNDERWOOD ROAD
MAK
Engineering
F 12117
36" CW20-X 36" 1D
(Flags-See Note 1)
Chevron SHALL be Alignment placed on (CW every 1-8L) other signs
channelizing device along taper.
END
X
ROADWORK\ 36" G20-X 18" 2
◊ I ◊ I I
.
I I
I I
I I
I I
I I
I I
I I
I I
I I
I I
I I
I I
o!o
ROAD END WORK I
36" G20-X 18" 2
I
•
•
•
•• I•
•• I·
•• I·
I·
...J
•
*
X
.....
X
.....
X
.....
X
36" CW20-X 36" 1D
(Flags-See Note 1)
Chevron SHALL be Alignment placed on (CW every 1-8L) other signs
channelizing device along taper.
intensity Shadow Vehicle rotating, with flashing, ThtA and high
(oscillating See notes or 4 strobe & 5) lights.
36" CW20-X 36" 1D
(Flags-See Note 1)
(See 24" CW13-Note X 24" 1P 2) A.
· CW8-11
36" ee Note X 36" 2).A.
'
CW20-5TR
HT 36" X 36"
E ED, ,
I I
�HEAD CW16-24" X 9P 18"
OR
END
ROAD WORK
36" G20-X 18" 2
u
X
.....
.....
.....
n
END I
◊ . I ◊ /ROADWORK 36<i.2tf5•
I
•
•
•
•• I•
•• I·
•• I·
,.,,
•
.....
.....
.....
b]
• 0 �-mu � � i C
�b
�N
cc
:i
C
*
X
X
X
X
l[M]
I
intensity Shadow Vehicle rotating, with flashing, ThtA and high
oscillating (See notes or 4 strobe & 5) lights.
36" CW20-X 36" 1D
(Flags-See Note 1)
(See 24" CW13-Note X 24" 1P 2) .A.
36" CW8-X 36" 11
e Ncte 2)A.
11�11 ;�6;�: ..
OR
RIGHT LANE CLOSURE (5 LANE ROAD) RIGHT LANE CLOSURE ( 4 LANE BOULEVARD ROAD)
NO. REVISIONS DATE NAME
HARRIS COUNlY
PUBLIC INFRASTRUCTURE DEPARTMENT
ARCHITECTURE &: ENGINEERING DIVISION
FOR INTERIM REVIEW ONLY
DOCUMENT INCOMPLEIE:
NOT INTENDED FOR C0NSIRIJCllON,
BIDDING, OR PERMIT PURPOSES
ENGINEER: NAME
P.E. SERIAL No. NUMBER
DAlE: / /
TRAFFIC CONTROL PLAN SECTION SHALL BE
COMPLETED BY ENGINEER
SPACING
POSlED TAPER CHANNELIZING SIGN BUFFER
ROADWAY SPEED LENGTH DEVICES SPACING SPACE
TAPER TANGENT
LEGEND
= Type 3 Barricade •• Channelizing Devices
DP Heavy Work Vehicle tz§J Attenuator Truck Mounted (ThtA \
Trailer Mounted Portable Changeable
i Flashing Arrow Board ® Message Sign (PCMS)
..... Sign ◊
Traffic Flow
°' Flag
Uo Flogger
Desirable Minimum Suggested Spacing Maximum of Minimum Suggested
Posted Formula Taper �
en.gths "L" Sign
Speed Channelizing Spacing
. Devices ·x· Buffer Longitudinal Space
10· 11' 12' On a On o Distance "B"
Offset Offset Offset Taper Tangent
30 ws2 150' 165' 180'
30'
60' 120'
90'
-40 35 L= 60 265' 205' 225' 295' 320' 245' 35' 40' 80' 70' 160' 240' 120' 155'
45 450' 495' 540' 45' 90' 320' 195'
50 500' 550• 600· 50' 100' 400' 240'
--55 60 65 L=WS 650' 600' 550' 715' 660' 605' 720' 660' 780' 60' 55' 65' 110· 120' 130' 600' 500" 700' 410' 350' 295'
-70 75 700' 750' 770• 825' 840" 900' 70' 140" 800' 475'
75'
150' 900' 540'
* Conventional Roads Only
** Toper lengths have been rounded off.
L=Length of Toper(FT) W=Width of Offset(FT) S=Posted Speed(MPH)
GENERAL NOTES
1. 2. the Flags All traffic triangle attached control symbol to devices signs are OPTIONAL. where illustrated shown are are REQUIRED, OPTIONAL. except those denoted with
3. right-Inactive of-work way line vehicles and or not other parked equipment on the paved should shoulder. be parked near the
4. to A Shadow 100 feet Vehicle in advance with a of ThtA the should area of be crew used exposure anytime without It can adversely be positioned affecting 30
Barricades the road performance or work or conditions other or channelizing quality require of the the devices work. traffic may If control workers be substituted to are remain no longer
for in place, the present Shadow Twe but .3
5. Vehicle Additional and Shadow ThtA. Vehicles with ThtAs may be positioned off the paved surface,
6. next Contractor to those shall shown provide in order and install to protect traffic wider control work devices spaces. in conformance with
edition part VI with of Texas revisions) Manual during on Uniform construction. Traffic Control Devices (ThtUTCD - Latest
PROJECT TITLE:
UNDERWOOD ROAD 45 450' 45' 320'
90' 195'
MAK Design & Drafting LLC
P.O.Box 940161
Houston, TX 77094
Ph. # 713-298-0297 C-5
2
OUTFLOW RESTRICTOR DESIGN:
PREDEVELOPMENT PEAK FLOW
TOTAL EASEMENT AREA = 7,700 S.F.
201410
05-25-20
JIN LEE
LA
PLAZA
LA PORTE, TX 77571
2459 UNDERWOOD RD.
TOTAL OUTFALL RATE FOR PROPOSED PROPERTY = 5.40
DRAINAGE ANALYSIS
2 - YEAR STORM EVENT
STORM SEWER CALCULATION (PROPOSED PROPERTY)
AREA
PIPE RUN
FROM TO
RUN-OFF TOTAL
AREA (AC) RUN-OFF
AREA (AC)
DRAINAGE
"A"
"A"
A-2 I I
A-3
A-6
2 4
I3
I6
0.17 0.36
0.15 0.15
0.16 0.30
I4
A-5 I5 I 0.14 0.14
6
A-7 I I
A-9
7 8
I9
0.19 0.49
0.22 1.41
POND 0.19 1.77
I9
A-10 I10
I7
A-1 I1
0.19 0.19
A-4 I4
I8 0.19 0.70
A-8 I8
I10 0.17 1.58
A-11 POND 0.18 1.95
CONCENT. CO-EFF. RUN-OFF
T (MIN) "C" I (IN.) Q (CFS)
TIME OF
C
RAIN FALL
INTENSITY
TOTAL
RUN-OFF
A Q A (CFS)
MANNING PIPE DIAM. LENGTH
"n" (IN) (LF)
REACH
0.01
(S)
SLOPE %
0.01
0.01
128
49
85
0.01 50
0.01
0.01
0.01
60
130
80
0.01 95
0.01 94
0.01 90
VELOCITY
R (FT) V (FT/SEC) "Q"
HYDRAULIC
RADIUS
2.86
DISCHARGE
(CFS)
PIPE
18.18
2.86
2.86
2.86
5.19
8.44
2.86 DISCHARGE
OK
5.19
18.18
18.18
10 - YEAR STORM EVENT
RUN-OFF
I (IN.) Q (CFS)
RAIN FALL
INTENSITY
TOTAL
RUN-OFF
Q (CFS)
0.63 1.42
A A
0.59 0.59
0.63 1.18
0.55 0.55
0.75 1.93
0.86 5.55
0.75 0.75
0.75 2.76
5.2
5.3
5.3
5.2
5.3
3.5.7 3
5.2
5.2
100 - YEAR STORM EVENT
RUN-OFF
I (IN.) Q (CFS)
RAIN FALL
INTENSITY
TOTAL
RUN-OFF
Q (CFS)
0.93 1.97
A A
0.83 0.83
0.88 1.65
0.77 0.77
1.04 2.69
1.20 7.73
1.04 1.04
1.04 3.84
7.3
22.3 7.3
22.2
22.2
22.1
22.5
22.5
22.5
22.5
22.3
22.5
22.4
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
0.75
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
3.6
0.46
0.41
0.43
0.38
0.51
0.59
0.51
0.51
0.51
0.46
0.49
0.97
0.41
0.81
0.38
1.32
3.80
4.91
0.51
1.89
4.40
5.40
0.25
0.50
0.25
0.25
0.31
0.25
0.25
0.31
0.38
0.50
0.50
3.6
3.6
3.6
3.6
4.2
4.8
5.8
3.6
4.2
5.8
5.8
12"
24"
12"
12"
12"
15"
18"
12"
15"
24"
0.01 24" 47 0.20
0.67 6.22
0.75 6.97
0.71 7.68
5.3
5.2
5.2
0.93 8.66
1.04 9.70
0.99 10.69
I2
DISCHARGE
OK
DISCHARGE
OK
DISCHARGE
OK
DISCHARGE
OK
DISCHARGE
OK
DISCHARGE
OK
DISCHARGE
OK
DISCHARGE
OK
DISCHARGE
OK
DISCHARGE
OK
7.3
7.3
7.4
7.3
7.3
7.3
7.3
7.3
7.3
AREA PROPERTIES PIPE PROPERTIES
2 YRS 10 YRS 100 YRS
b
d
e
75.01 93.53 125.4
16.2 18.9 21.8
0.8315 0.7742 0.7500
FROM EXHIBIT 3-1 AND 3-2 HCFCD MANUAL
DRAINAGE AREA = 2.23 ACRE
IMPERVIOUS COVER 0%
PREDEVELOPMENT PEAK FLOW :
FOR 2 YRS = 1.8 CFS
10 YRS = 3.0 CFS
100 YRS = 4.8 CFS
--- OUTFALL 0.18 1.95 22.4 0.75 0.01 24" 45 0.38 0.50 5.8 3.6 0.49 5.40 18.18
5.2 0.71 7.68 0.99 10.69 DISCHARGE
OK
7.3
I11
I11
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
0.20
TC 26.25
TP 25.75
TC 26.25
TP 25.75
TC 26.25
TP 25.75
TC 26.25
TP 25.75
TC 26.75
TP 25.75
TC 26.25
TP 25.75
TC 26.25
TP 25.75
TC 26.25
TP 25.75
TP 25.75
TP 26.25
TP 25.75
TC 26.25
TP 25.75
STEP
STEP
STEP
STEP
STEP
STEP
STEP
PROP. 85 LF 12" Ø
PVC @ 0.20% SLOPE
PROP. 60 LF 15" Ø
PVC @ 0.20% SLOPE
PROP. 130 LF 18" Ø
PVC @ 0.20% SLOPE
PROP. 80 LF 24" Ø
PVC @ 0.20% SLOPE
PROP. 95 LF 12" Ø
PVC @ 0.20% SLOPE
PROP. 128 LF 12" Ø
PVC @ 0.20% SLOPE
PROP. 49 LF 12" Ø
PVC @ 0.20% SLOPE
PROP. 94 LF 15" Ø
H.D.P.E. @ 0.20% SLOPE
PROP. 50 LF 12" Ø
PVC @ 0.20% SLOPE
PROP. 47 LF 24" Ø
RCP @ 0.20% SLOPE
PARKING LOT CROSS SECTION (TYP.)
NOTE:
FLOW
LINE
PARKING LOT CROSS SECTION (TYP.)
0.75'
BLDG. WALL
F.F. ELEV. 27.00
TC 26.25
PROP.BB-I7
TOP 25.00
FL -- 19.89
SIDE
WALK
TP 25.75
TC 26.25
TP 25.75
EL 26.75
MAX. WATER SURFACE ELEVATION 25.75
STEP
TC 26.25
TP 25.75
TC 26.25
TP 25.75
TC 26.25
TP 25.75
STEP
TC 26.75
TC 26.75
TC 26.25
TP 25.75
0.15
A-3
0.14
A-5
0.16
A-6
0.19
A-4
0.22
A-8
0.17
A-9
0.19
A-10
0.19
A-1
0.17
A-2
0.18
A-11
0.19
A-7
6" RESTRICTOR
DETENTION POND CROSS SECTION (TYP.)
SCALE: N.T.S.
1'-0" FREEBOARD
PROP. 45 LF 24" Ø
RCP @ 0.38% SLOPE
MAK Design &
Drafting LLC
MAK
Engineering
F-12117
OR 1/2" NON-EXTRUDING
1" BOARD EXPANSION
#4 @ 24" C/C
COMPACT SUBGRADE TO 95% STANDARD
PROCTOR DENSITY
EXIST. CURB
BACK OF
4' MINIMUM
2'
NON-EXTRUDING PREFORMED JOINT
1" BOARD EXPANSION OR 1/2"
1:50 MAX CROSS SLOPE
DETAILS
C-1.3
SHEET
TITLE
PROJECT
HOUSTON, TX 77094
P.O.BOX 940161
TEL: 713-298-0297 FAX: 281-239-2710
PROJECT NO.
DATE
SCALE
N.T.S.
OWNER
MAK Design & NO ISSUE / REVISION DATE
Drafting LLC MAK
Engineering
F-12117
JIN LEE
201410
05-25-20
LA
PLAZA
LA PORTE, TX 77571
2459 UNDERWOOD RD.