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BASIN
VICINITY MAP
KEY MAP 580V '
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. DR.��IV-Il\T� INI�x
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SBEET N0. DESCRIPTION
1. COVER SHEET
G
2. GENERAL NOTES C
3. SURVEY CONTROL MAP 4
4. DRAINAGE AREA MAP `C
5—'7. PLAN AND PROFILE e
8,9. CROSS SECTIONS L
10. � INLET AND JUNCTION B �X DETAILS
11. SAFETY END TREATMEN I'
PROJECT
LOCATION
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12. HCFCD STANDARD DRAti TNG
STORM WATER POLLUTIt ►N PREVENTION L
PLAN DETAILS
/ � ode
C O N S U L T A N T S p� �� ZoOzO
1011 HYW 6 So., SU11�E 117 — HOUSTON, TEXAS 77077 0�� s
CO�JN`�'Y �UD�� ROB�R'-I' ECK]�LS
FR.ANCO IJ�� PCT a � ST�EV RA�ACK *� ����.qs.
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F� N� J-1 N O P C 1 � � JLJ R R Y .L! b Ll R� O 1J 1J BEN,.E. CORDELL...JR
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DIRa Bo Ca �'e Ce Da ARTB�JR Le �'�'OR�Y9 JRo .�
B9
PRIVATE UTILITY LIN) S SHOWN..
tom- � -,1' ;
RELIANT ENERGY/ENTEX DATE
SOUTHWESTERN BELL TELEPHONE CO. DATE
(VALID FOR ONE YEAR ONLY)
REl1ANT ENERGY/HOUSTON LIGHTING &POWER CO. f ATE
(APPROVAL ONLY FOR CROSSING UNDERGROUND DUCT
LINES UNLESS NOTED. VALID FOR ONE YEAR ONLY,)
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_
GENERAL NOTES
1. THE PROJECT PLANS ARE INTENDED AS A GUIDE. THE `PROJECT LIMITS
WILL BE DETERMINED IN THE FIELD BY THE ENGINEER PRIOR
TO CONSTRUCTION ACTIVITIES. DUE TO THE DYNAMIC CONDITIONS IN THE
FIELD, PROJECT SCOPE AND QUANTITIES MAY VARY FROM THE PLANS
AND/OR CROSS SECTIONS. HCFCD RESERVES THE RIGHT TO ADJUST
PLANS AND QUANTITIES AS NECESSARY. PROJECTS MAY BE ADDED OR
DELETED FROM THE PACKAGE AS PRIORITIES CHANGE.
-2. PROJECT CONSTRUCTION PRIORITY WILL BE DETERMINED BY THE
ENGINEER.
30 FENCES ENCROACHING INTO THE RIGHT-OF-WAY ARE NOT TO BE REMOVED
UNLESS OTHERWISE STATED ON THE PLANS. ACCESS IS LIMITED TO THE
AVAILABLE HCFCD RIGHT-OF-WAY UNLESS OTHERWISE STATED ON THE
PLANS. ANY ADDITIONAL OR ALTERNATIVE ACCESS IS THE RESPONSIBILITY
OF THE CONTRACTOR.
4. DO NOT ENTER PRIVATE PROPERTY WITHOUT PROPER AUTHORITY FROM
THE OWNER AND HCFCD.
50 IN CASES WHERE FENCE REMOVAL IS INDICATED ON THE PLANS, THE
FENCE SHOULD BE REMOVED AND PLACED NEATLY ON THE ADJACENT
PROPERTY.
6. THE ENGINEER WILL DETERMINE THE ACCEPTABILITY FOR REUSE
OF THE STRIPPED VEGETATION AND TOPSOIL. UNACCEPTABLE MATERIAL
WILL BE REMOVED AND WILL BE PAID AS EXCAVATION AND OFFSITE
DISPOSAL. MATERIAL FOUND TO BE ACCEPTABLE FOR REUSE SHALL BE
STOCKPILED ONSITE. PAYMENT FOR REUSEABLE MATERIAL SHALL BE BY
EXCAVATION AND' ONSITE FILL.
7. RIPRAP REMOVED DURING EXCAVATION FOR CHANNEL REPAIRS SHOULD
BE STOCKPILED FOR REUSE. PAYMENT SHALL BE AS EXCAVATION AND
ONSITE FILL.
8. IN AREAS OF SINKHOLE AND JUGHOLE REPAIR, EXCAVATION IS REQUIRED
TO EXPOSE UNDERGROUND VOIDS. SINKHOLES OCCURRING OVER OUT -
FALL PIPES WILL REQUIRE EXPOSING THE PIPE AND POSSIBLY REPLACING
THE BAND COUPLER OR COLLAR AS DIRECTED BY THE ENGINEER.
9. `DEEP PLOWING (IF NEEDED)
THE INTENT OF DEEP PLOWING THE SLOPE OR BERM OF A CHANNEL
IS TO BREAK UP THE DESICCATED SOILS AND TO ELIMINATE ANY VOIDS,
OR RILLING CLOSE TO THE SURFACE OF THE SLOPE OR BERM. THE
CONTRACTOR WILL DEEP PLOW THE SLOPE OR BERM TO A MINIMUM
DEPTH OF 2' IN AREAS CONTAINING VOIDS AND/OR RILLING.
IN AREAS OF VOIDS ONLY, THE SURFACE FROM WHICH THE 2' OF - DEPTH
IS MEASURED WILL BE THE LEVEL OF THE SURROUNDING SOIL.
IN AREAS OF RILLING, THE RILLS WILL FIRST BE KNOCKED DOWN AND
LEVELED OFF, THE 2' DEPTH WILL THEN BE MEASURED FROM THIS NEW
W SURFACE THE CONTRACTOR WILL DETERMINE THE MEANS AND METHOD
z
FOR DEEP PLOWING.
00
10. THE INTENT OF THE CHANNEL DESILT -IS TO 'RESTORE POSITIVE DRAINAGE
DURING LOW FLOW CONDITIONS. THE CONTRACTOR SHALL GRADE THE
CHANNEL FLOWLINE FOR POSITIVE 'FLOW. UNLESS SPECIFICALLY STATED
OTHERWISE, IT IS NOT THE INTENT OF THE PROJECT TO DEEPEN THE
CHANNEL BEYOND ITS ORIGINAL DESIGN' CONFIGURATION. EXCAVATION OF
SILT SHOULD NOT UNDERMINETHE TOE OF THE SLOPE.
1 1 . WHEN DESILTING A CONCRETE LINED SECTION, REMOVE ALL SILT ` WITHIN
THE CHANNEL ALONG THE SPECIFIED REACH,
UTILITY NOTES
1. THE LOCATION OF SOUTHWESTERN BELL TELEPHONE CO. UTILITIES ARE
NOT SHOWN. THE CONTRACTOR SHALL DETERMINE THE EXACT LOCATION
OF THE UTILITIES BEFORE COMMENCING WORK.- HE AGREES TO BE
FULLY RESPONSIBLE FOR ANY AND ALL DAMAGE WHICH -MIGHT BE
OCCASIONED BY HIS FAILURE TO EXACTLY LOCATE AND PRESERVE THESE
UNDERGROUND FACILITIES,
2. THE LOCATION OF UNDERGROUND UTILITIES (ENTEX) ARE SHOWN IN
APPROXIMATE LOCATIONS ONLY, SERVICE LINES ARE NOT SHOWN.
THE CONTRACTOR SHALL CONTACT THE UTILITY COORDINATING COMMITTEE
AT (713) 223-4567 OR 1-800-669-8344 A MINIMUM OF 48 HOURS PRIOR TO
CONSTRUCTION TO HAVE MAIN AND SERVICE LINES FIELD LOCATED. THE
CONTRACTOR SHALL DETERMINE THE EXACT LOCATION BEFORE COMMENCING
WORK AND AGREE TO BE FULLY RESPONSIBLE FOR ANY DAMAGES CAUSED
BY HIS FAILURE TO EXACTLY LOCATE AND PRESERVE THESE UNDERGROUND
FACILITIES,
3. WARNING - HL&P OVERHEAD LINES MAY EXIST ON THE PROPERTY, THE
PLANS DO NOT. ATTEMPT TO SHOW THESE LINES SINCE THEY ARE
CLEARLY VISIBLE: THE CONTRACTOR SHOULD LOCATE THEM PRIOR TO
BEGINNING ANY CONSTRUCTION, TEXAS LAW, CHAPTER 752, HEALTH'
AND SAFETY CODE, FORBIDS ALL ACTIVITIES IN WHICH PERSONS OR
THINGS MAY COME WITHIN 6 FEET OF LIVE OVERHEAD HIGH VOLTAGE
LINES, CONTRACTORS ARE LEGALLY RESPONSIBLE FOR SAFETY OF
CONSTRUCTION WORKERS UNDER THIS LAW, TO ARRANGE FOR
LINES TO BE TURNED OFF OR MOVED, CALL TERRY MARTIN, HARRIS
COUNTY FLOOD CONTROL DISTRICT AT (713) 684-4042.
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*.• :*
BEN E. CORDELL, rJR.
12715
N
TA. 0+ 12.53, 0.46' RT.
SURVEY E PT. N0. 1
PK NAIL IN ASPHALT
/I--TBM ELEV.=11.43
S
3
LbT 4
LOT 5
LOT 6 I LOT 7
1 +00 2+00
S 87 ' 15" E 440.15
35
RESERVE
LOT 1 � LOT 2
SHOREACRES
VOA. 71 PG. 10 N.C.M.R.
FND.1 /2"I.R.
� STA. 2+97.00, 8.28 LT.
LOT 3
BAY COLONY
VOA. 81 , PG. 62 N.C.M.R.
LOT 9
PLAN CE
4+00
LOT 4
LOT 10 � LOT 11
NE - � S 88°27'OOf' E
5+00 6+00 7+00 8+00
9+00 ,, 10+00
8° 11
367:�1' N 88057'21 E 179.84
LOT 5 LOT 6 LOT 7 LOT 8 LOT 9
LOT 10 LOT 11 LOT 12 LOT 1300 00
_ o 0
STA. 4+52*649 7.09' RT. a � 0
SURVEY E PT. N0. 2 FND.5/8"I.R. X _ CL
a
5/8"I.R. STA. 7+49912 15.00' RT. Goo" QIN
NOTES
30' DRAINAGE AND UTILITY EASEMENT
AS SHOWN ON THE PLAT OF BAY COLONY 1. ALL BEARINGS ARE BASED ON THE PLAT OF BAY COLONY AS RECORDED
UNDER VOLUME 81, PAGE 62, HARRIS COUNTY MAP RECORDS
SUFFICIENT MONUMENTATION WAS NOT FOUND TO ACCURATELY DETERMINE
THE 30 FOOT DRAINAGE EASEMENT.
2. PROJECT BENCHMARK
-NGS MONUMENT NO. 1566 — BENCH MARK DISK LOCATED ABOUT
3.1 MILES SOUTH ALONG STATE HIGHWAY 146 BUSINESS FROM THE AZA a1lQiN o Norn
INTERSECTION OF 'BROADWAY AND SAN JACINTO AVENUE AT LAPORT, c o N s u w N owl dwo
r a
ABOUT 64 FEET EAST OF THE CENTERLINE OF STATE HIGHWAY 146 1011NIIBSa,SlliEn7—IgIaRILTFF S7W
(BROADWAY), 51 FEET NORTH OF THE CENTER LINE OF EAST SHORE
ACRES BLVD. 25 FEET NORTH OF A 28—INCH PALM TREE, 5 1/
NORTH OF THE NORTH END OF A SHORT STONE WALL, eL%%
ELEVATION: 8.06 (NAVD 88) (9.295 73 ADJ)
TBM #1— RAIL ROAD SPIKE IN POWER POLE LOCATED ALONG THE WEST K
OF THE DITCH 25 FEET NORTH OF SUNRISE DRIVE, Harms County
ELEV— 11.43 Flood Control District
OF T
Pao q�
00 Northwest Freeway
Houston, Texas 77092
ROBERT L. BOUSCHE
0090 Goo
9�9 a4g6 �rr`� • DATE: 8=2001
ess
40 0 40.,
's SCALE• NTS
i
SHEET NUMBER
SCALE IN FEET
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`D 02 1011 NYW 6 So., SWE 117 — HOUSTON, TEXAS-nv7
DESIGN CRITERIA PROVIDED BY 00
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HCFCD FOR 2YR . STORM
A = 17 . 9 AC
C = 0 . 55
Q = 29 . 6CFS
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BEN E CORDELL JR.
99001tT®rthftt 1Fseway .
S 12715 IH oustoilIl Te '101J�
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SHEET NUMBER
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C/ CONTRACTOR HALL REMOVE TREES ~ "
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STA. 0+29.45 AS DIRECTED Y THE ENGINEER STA. +52.13 W� Z
S JUN TION BOX t MOD. TYPE B INLET
SEED AIL SHEET. SEE DETAIL SHEET 10 a . zIm
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CONNECT P P. 54" RCP p L IL
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APPROXIMATE LOCATION �; U W �-
TO EXISTING RCP 1-Ill. Ii : ' OF +6I'�-v" gcec r ��� «� I— X � N
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WITH CONCRETE OLLAR N
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EXIST. 30t DRAIN GE AND J
UTILITY EASEMEN ;i U
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PROP. _151X42" RCP
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W/SET. SEE DETAIL d
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SCALE IN FEET �
-OHP— OVERHEAD.: POWER
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8.46
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EXIST. SO
TH TOB- ,
10
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01
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= 7.32La
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,-EXIST,
NORTF
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,
i
PROP,
SWAL
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3%18
IN.
6
6
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PROP. 4211
CL III
RCP ®
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PROP.
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RCP ®
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4
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STA. _6+ 2.32 Z
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AS I IRECTED BY THE ENGINEER MOD. PE „B„ INLET O 0
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WIN
+ SEED IL SHEET 10 -�- ° W> oN
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PROP. 24" RCP
EXIST. 30' D AINAGE AND
o O O
T UTILITY EASE ENT
REMOVE END JOINT p U
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EXTEND EXIST. w
i 24" RCP 9 9III-
_o w
Q
20 0 20 LEGEND o
= 1—
U (n
SCALE IN FEET -OHP-, OVERHEAD POWER
_G — UNDERGROUNDGAS
3+00 4+00 5+00 6+00 7+00
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ATE EL.
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PROP.
42„
CL III
PROP.
42" CL
M RCP ®
0.05%RCP
@ 0.
5%
4
4
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2
- .
L--- FL OF
EXIST.
CHAN
EL
FL
24 (S)
= 3.82
TCH EXI
T. SLOP
OM
FL 42" =
2.80
CL
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MIN
STA. 9+65.00
MATCH ENIST. 42" RCP
END PROJECT
8..-
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?.7' P STI- 2E IANT 0tjv0z,`(/E.ti
r, �Ge
CONNECT PROP 42" RCP
TO EXIST NG 42" RCP
W/ ON RETE COLLAR
10'-0" TYP.
2'-6" 5'-0" 2'-6"
8 --h2 111
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A I II ❑❑❑❑❑❑ jl I � I
MATCH TOP OF
CONCRETE WITH —
NATURAL GROUND
6" MIN. IF LESS THAN
48" DIA.
1' MIN, IF GREATER THAN
OR EQUAL TO
48' DIA,
CEMENT STABILIZED SAND
TO SPRINGLINE.
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1
20 0 20
SCALE IN FEET
10+00
0
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Sri �
EXIST. 42"I RCP
M TCH EXIST.
TYPICAL BEDDING DETAIL
NOT TO SCALE
1 1 +00
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'8IFIED TYPE "B" INLET BOX
EDETAILS SHT. 10 AND
DWG. N0. 02632-02) WITH
TE TOP, VULCAN
PLAN FOUNDRY COMPANY,
V-4880-1 OR APPROVED
EQUAL, APPROX, 489 SQ.IN,
10'-0" TYP. 6"
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" 5'-0" 2'-6" � GENERAL NOTES:
2 1' MAX. 21, STEEL REINFORCING #4 BARS
5, I (GRADE 40) AT 12" ON CENTER
EACH WAY.
o�
I�
N-..••-- 2. CONCRETE PAD AROUND TYPE "B"
INLET PAID FOR AS PART OF MODIFIED
8'--) MODIFIED TYPE "B" INLET.
6"
SECTION A
10
Li
-OHP-
LEGEND
OVERHEAD POWER
UNDERGROUND GAS
0
0
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'* * f food Control District
fetwo
BEN E. CORDELL, JR, 5�;" �.............................. y A< �P1.�it't%✓Pu� i, i.�P 9'JS17
' DATE: 01-2002
SCALE: HORZ. 1 " 2Q'
VERT. 1 " = 2
SHEET NUMBER"
�� 7 OF 12
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a EXISTING
cn
W CHANNEL
w
0 PROPOSED
42'
RCP
CEME
T
FL
2.76
5
'10
10 STABL SAND 0 10 20
STA. 6+00
o w
0 noiII
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o a MINNAbilwow
o
Feembodo
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30' D.E. Q Q U
TV
ROPOSE
10 STABL SAND 0
STA. 5+00
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A/A ENG/ VEERS.LTD.
CONSULTANTS
IOU HYW 6 So., SUOE 111 - HOUSfON, TEXAS 17017
t
20
PROPOS D
L EL
F- F
w
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u
N N �W EXI TING w
42' RCP
CEME ItIlT FL 2.66
10 STABL SAND 0 10
STA. 4+00
9900 It olire t I i-
Houston, 77092.,
_• SHEET,
FEET 8 OF
10 STABL SAND 0 10
STA. 4+00
9900 It olire t I i-
Houston, 77092.,
_• SHEET,
FEET 8 OF
STATION
DIST.
IN
FEET
CUT
FILL
CUT
(CY)
FILL
(CY)
END AREA
Doua�E
END AREA
ENO AREA
oous�E
END AREA
0+32
0.0
36.83
68
0.0
36.83
0.0
136.41
1 +00
0.0
36.83
100
0.2
36.93
0.74
136.76
2+00
0.4
37.02
100
3.05
36.58
11.3
135.48
3+00
5.70
36.14
�
100
6.84
33.50
25.33
124.06
4+00
7.98
30.85
100
6.82
32.11
25.24
118.93
5+00
5.65
33.37
100
4.50
33.19
16.67
122.93
6+00
3.35
33.01
100
1.89
40.82
6.98
151.19
7+00
0.42
48.63
100
2.64
38:08
9.78
141.02
8+00
4.86
27.52
100
3.26
31.66
12.06
117.2fi
9+00
1.65
35.80
58.06
1,65
35.80
6.1 1
132.59
9+58.06
1.65
35.8 '
CUMULATIVE QUANTITIES =
114.2
1313.61
5 0 5
' SCALE IN FEET
��P� Fkgs ., S,
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BEN..E ..CORDELL.� JR. �9'� T�e��d➢nw�t �Frl��+
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DATE: 8-2001
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2—#8 BRRS
EXIST. 4" PIPE
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STANDARD 52 MANHOLE
RING AND COVER — SEE --
CITY OF HOUSTON STANDARDLli
DWG N0. 02084-01 � 0At
3
OUTSIDE (TYP.)
JUNCTION BOX DETAI
STA. 4+29.45
NOT TO SCALE
#6®6" w w �
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2—#8 BARS
INSIDE & OUTSIDE (T)
—#5 ® 6" (TYP.)
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MORTAR {
FILL `_ 2" CLRDl� '"�e L
24" LAP A/A ENGINEERS,L7�
@.6" CON S ULTANTS '
IDII HR 6 So., W 117 — BOUS A( 7Z0J7
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SECTION B-B
p��,� BEN E CORDELL JR. 99,00 F Northwest lre
�ray
$ p�� 11 12715 oustoit, 7Cem 77092
SIEVIEN E: LE S �oNAI
agar f4' DATE: 8-2001
SCALE:
eaeRe eUAL
/
SHEET ` NUMBER ;
10 OF 12
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1 `) The proper installation of the first Cross Pipe is critical
for vehicle safety. The top of the first Cross Pipe must
be placed at no more than 6" above the flow line.
<� Size of Cross Pipes, except the first bottom pipe, shall
be as shown. The first bottom
pipe shall be 3 1 /2 Standard Pipe (41' O.D:).
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(3) The third Cross Pipe from the bottom of the Culvert shall a
always be installed using a bolted connection. Care shall
be taken to ensure that concrete does not flow into
the Cross Pipe so as to permit disassembly of the bolted o
connection to allow cleanout access. At the Contractor's '
option, all other Cross Pipes may also be installed using
the bolted connection details.
(4) Any additional Concrete required for Cross Pipe anchorage
shall be included in the Price Bid for Safety End Treatmeni
y „ Such Concrete shall be Structural concrete in accordance H 'th
Section 03310 -''Concrete
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GENERAL NOTES:
Cross Pipes are designed for a traversing U Femme,
� Toad of 10,000 pounds at yield as recommended by U W
Research Report 280l,i 'Safety Treatment of X :D
of Roadside Parallel —Drainage Structures", Texas I V) L—
Transportation Institute, March 1981.
Safety End Treatments shown herein are intended 0 _I
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for use in those installations where out of control 0 Z ry
vehicles are likely to traverse the openings
approximately perpendicular to the Cross Pipes. L�.I p
Concrete and all necessary inverts shall be IZ
considered Structural Concrete in accordance with O LLJ W
Section 03310, "Concrete". Z
Payment for slope concrete and toewall is included Q Z
in the Price Bid for each Safety End Treatment. Q W
Cross Pipes shall conform to the requirements _ LLJ
of ASTM A53 (Type E or S, Grade B), ASTM A500 0 U <(
(Grade B), or API 5LX52. _ Q. V)
Bolts and nuts shall conform to ASTM A307.
i4 All steel components, except concrete
2,� reinforcing, shall be galvanized after
fabrication. Galvanizing damaged during
Min transport or construction shall be repaired
Clear in accordance with the specifications.
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Concrete W _
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IF
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The Contractor may, at his option,
provide and install a pre —cast
unit conforming _ to the details `Ili, '
hereon:._ -
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FIJI
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IF
A/A ENGINEERS,
FiFilC O N S U L T A N T 3'
Reinforcement; #4 (Grade 40) at 12" OCEW or / O rorr rm1 s so., suoe m - rrotrsroN hwts not
welded wire fabric meeting the requirements
of ASTM A185.
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BEN E. COROELL JR: Newest Freeway
eve 12715 eve ]( ouston, Texas 17092
DATE: 8-2001
SCALE:
MODIFIED FROM TXDOT sNEET' NUMBER
STANDARD SETP-PO
11 OF 12
TOE OF
SLOPE
SEE NOTE B.6.
INTERCEPTOR STRUCTURE AND a
INLET PROTECTION (SEE DETAIL): a
BACKSLOPE SWALE
TWO ROWS STAGGERED a
MIN. TWO ROWS
STAGGERED SOD
PANELS (TYP.)
TYR� o
PROP. TOP OF SLOF
0
SEE .DETAIL "A" �
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v
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PROP, TOE OF SLOF = o
PLAN NOTE:
PROVIDE STAPLES PER
SPECIFICATION -SECTION
NO, 02922 SOD,
STAGGERED SOD PANELS fl I fl
2 MIN.
fl I fl 1
�° rfl fl 1 fl L
"U" STAPLES ` "U" STAPLES
fl fl I 0
DETAIL "A" DETAIL " B
SEE DETAIL "B"
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NOTE: p W Q
PROP, TOP OF SLOPE WHERE NO BACKSLOPE SWALE 0 W
EXISTS OR FOR PAVED CHANNEL.
x PLACE A DOUBLE ROW OF SOD I
PANELS AT TOP OF SLOPE. N O J
p O
2� MPX I U I Q
20 MpX• SOD p Z
PROP. TOE OF SOD LL1 W [Z
SLOPE OR NORMAL SEE DETAIL "A"
WATER SURFACE
FOUR ROWS STA GERE)
STAGGERED SOD PANELS Q Z
SECTION SOD PANELS I-��1 Q W
SOD PANELS
50' INTERVALS I 20' I i_ 201 50' INTERVALS_i
D AS NEEDED AS NEEDEDyyy
D
FLOW
soD INTERCEPTOR STRUCTURE
SYMBOL & INLET PROTECTION
SODDING
0 0 �
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FILTER DAM NOTES: a, � a
A. TYPES OF FILTER DAMS ^ `
1. TYPE 1 (NON -REINFORCED)
a. HEIGHT - 18-24 INCHES, MEASURE VERTICALLY FROM EXISTING GROUND TO TOP OF FILTER DAM.
b. TOP WIDTH - 2 FEET (MINIMUM) I
c. SLOPES 2:1 MAXIMUM).
2. TYPE 2 (REINFORCED),
0. HEIGHT - 18-36 INCHES, MEASURE VERTICALLY FROM EXISTING GROUND TO TOP OF FILTER DAM.
b. TOP WIDTH - 2 FEET (MINIMUM).
c. SLOPES - 2:1 (MAXIMUM).
3. TYPE 3 (REINFORCED)
0. HEIGHT - 36-48 INCHES, MEASURE VERTICALLY FROM EXISTING GROUND TO TOP OF FILTER DAM. &11
b. TOP WIDTH - 2 FEET (MINIMUM), t p U`
c. SLOPES - 3: 1 (MAXIMUM). `
4. TYPE 4 (GABION)
0. HEIGHT - 30 INCHES (MINIMUM MEASURE VERTICALLY FROM EXISTING GROUND TO TOP OF FILTER C kM.
b. TOP WIDTH - 2 FEET (MINIMUMS: QC�
5. TYPE 5. AS SHOWN ON THE PLANS,
B. CONSTRUCT FILTER DAMS ACCORDING TO THE FOLLOWING CRITERIA UNLESS SHOWN OTHERWISE ON THE PLANS. - ON
1. TYPE 2 AND 3 FILTER DAMS: SECURE WITH 20 GAUGE GALVANIZED WOVEN WIRE MESH WITH 1 INCH
DIAMETER HEXAGONAL OPENINGS,
2. GRANULAR FILL:
0. PLACE ON MESH TO HEIGHT AND SLOPES SHOWN ON PLANS OR AS SPECIFIED BY THE ENGINEER.
b. 3-5 INCHES FOR ROCK FILTER DAM TYPES 1,2, AND 4 AND 4-8 INCHES FOR ROCK FILTER DAM TYPI 3.
REFER TO GRANULAR FILL IN SPECIFICATION SECTION NO, 02378-RIPRAP AND GRANULAR FILL.
3. WIRE MESH: FOLD AT UPSTREAM SIDE OVER GRANULAR FILL AND TIGHTLY SECURED TO ITSELF ON THE
DOWNSTREAM SIDE USING WIRE TIES OR HOG RINGS.
4. IN STREAMS: SECURE OR STAKE MESH TO STREAM BED PRIOR TO AGGREGATE PLACEMENT,
5. SEE SPECIFICATION SECTION NO, 02364-FILTER DAMS,
6. EMBED ONE FOOT MINIMUM INTO SLOPE AND RAISE ONE FOOT HIGHER THAN CENTER OF DEPRESSED AREA AT �p Q��O}i COMIC ;!
SLOPE. flo@d.Conk@ Dvfif Ud
THIS DETAIL SHEET HAS BEEN PREPARED FOR USE ON
HCFCD PROJECTS OR PROJECTS TO BE MAINTAINED BY 9900lgort west reeway,
THE HCFCD WHEN COMPLETED BY OTHERS, THE ENGINE ER ff3ouston,'Tvmas`77092
SHOULD CAREFULLY REVIEW THESE DETAILS TO DETERM 4E
THEIR APPLICABILITY TO A PARTICULAR PROJECT, IF
REVISIONS ARE NECESSARY, THEY SHALL BE CLEARLY DATE: 8-2001
DELINEATED AND NOTED IN THE REVISION BLOCK IN
ACCORDANCE WITH RULE §131,152 (e) OF THE TEXAS SCALE: NTS
STATE BOARD OF REGISTRATION FOR PROFESSIONAL
ENGINEERS, AN ENGINEER WHO INCORPORATES THE SHEET 'NUMBER
DETAILS ON THIS SHEET INTO HIS WORK MUST SEAL TI IS
SHEET AND BECOME-RESPONSIBLEFOR ITS USE IN THI 12 OF " 12
P.E. SEAL AND SIGNATURE END PRODUCT IN ACCORDANCE WITH RULE §•131.166(n ). {