HomeMy WebLinkAboutR-410916m
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t"2"LETTERING
g �
TF4v� / r DOLT HOLES - 3 PLACES
O
FRAME AND VANED GRATE
•70•
5
T, C G" 12'. OR 2V
ONE ✓13 BAR HOOP FOR 6" HEIGHT
INCREMENT (SPACED EQUALLY),
SEE NOTE 1
RECTANGULAR ADJUSTMENT SECTION
\O\s EQUALLY SPACED 120" APART ON aauaa
- - - BOLT -DOWN SLOT, 12'
SEE DETAIL AND
NOTE I
I TE I
l� �
FRAME AND VANED GRATE 1lq" RENT ON
9
DRAIN
(1) 1DIA. PICKHQLE
j I OUTFACE TO STREAM I DUMP HO POLLUTANTS BOLT -DOWN SLOT DETAIL COVER BOTTOM VIEW
SEE NOTE 4
SEE NOTE 1
CLEAN SURFACE AND BOTTOM AREA. '\ - - - - - - - - - J i I.W LETTERING
PROVIDE JNIFORM CONTACT. THE SURFACE % m PLAN VIEW
AREA OF THE BASE SECTION MUST BE TOP \
MORTARED TO TV E BOTTOM AREA OF THE
ADJUSTMENT SECTION ADJUSTMENT SECTION :)I6^ HEI;LssLJJ LL1 TEHwc
�0 W'.11 x 1.5 SS RUBBER
NQt sFF �, NOTES: 1
1. AS ACCEPTABLE ALTERNATIVES TO THE REBAR SHOWN 25" DIA, WASHER
`)•Y' / B IN THE PRECAST BASE SECTION. FIBERS (PLACED IN
ACCORDANCE WITH STANDARD SPECIFICATION / 1'
pl / 9.05.WS)I. OR WIRE MESH HAVING A MINIMUM AREA OF 1 1
0.12 SQUARE INCI IES PER FOOT SI IALL BE USED WITI I
THE MINIMUM REQUIRED REBAR SHOWN IN THE 1 _ -
/ 2 112
ALTERNATIVE PRECAST BASE SECTION. WIRE MESH
SHALL NOT BE PLACED IN THE KNOCKOUTS. AS ANACCEPTABLE ALTE RHATIVE TO THE REBAR SHOWN IN
THE RECTANGULAR ADJUSTMENT SECTION, WIRE MESH
#3 BAR EACH CORNER I I I HAVING A MINIMUM AREA OF 0.12 SQUARE INCHES PER 3.
I
FOOT MAY BE USED. I I ✓ S
z I I COVER SECTION VIEW EON BOLTING DETAIL
2. THE KNOCKOUT DIAMETER SHALL NOT BE GREATER
THAN 2(r KNOCKOUTS SHALL HAVE WALL THICKNESS
` w OFT MINIMUM TO 2.5' MAXIMUM. PROVIDE A 1.5' I I 5'
/ MINIMUM GAP BETWEEN THE KNOCKOUT WALL AND THE I ' /
OLITSIDF OF THE PIPF AFTFR THIF PIPF ISINSTAI I FD, r ISOMETRIC 51
FILL THE GAP WITH JOINT MORTAR 'N ACCORDANCE WITH -�
#3 BAR EACH SIDE STANDARD SPECIFICATION 9.04.3. /
zD°
3. THE MAXIMUM DEPTH FROM THE FINISHED GRADE TO
v THE LOWEST PI-E INVERT SHALL BE 5 FEET. 5'
?!3 BAR EACH WAY 4. THE FRAME AND GRATE MUST BE INSTALLED WITH THE BASE SECTION 20" i/2' DIA.
FLANGE DOWN. 24" 2S 114' DIA, -
PRECAST BASE SECTION S. THE PRECAST BASE SECTION MAY HAVEA ROUNDED
FLOOR, AND THE WALLS MAY BE SLOPED AT A RATE CIF 7 OR 8 EQUAL SPACES
NOTES: 6 1/4' 1 v1B
1 H:24V OR STEEPER. F,,� ii4"DIA. NEOPRENE GASKET KET 1 1116'
THE OOVER OR ORATING OF A CATCH BASIN SHALL NOT BE ADJUSTED TO FINAW. GRADE UNTIL THE FINAL ELEVATION OF THE PAVEMENT, GUTTER, 1 DIRECTION FLOW
31 03 BAR I IOOF B. THE OPENINS SHALL BE MEASURED AT THE TOP OF THE DITCH, OR SIDEWALK IN WHICH IT IS TO BE PLACED HAS BEEN ESTABLISHED, AND UNTIL PERMISSION THEREAFTER IS GIVEN BY THE ENGINEER TO �-
/ PRECAST BASE SECTION. MCRTAR IN PLACE IN ACCORDANCE WITH VJSDOT/APNA STANDARD SPECIFICATION 7-05.3.
/ I 7. ALL PICKUP HOLES SHALL BE GROUTED FULL AFTER THE 2. SHIMS SHALL NDT BE USED TO SET FRAME -O GRADE. THE USE OF SHWAS IS PROHIBITED. T 6" 118
INLET HAS BEEN PLACED. USE GROUT TYPE 2 FOR 1 SOW MAX. J
43 BAR EACH NONSHR NK APPLICATIONS IN ACCORDANCE WITH R1(8"
STANDARD SPECIFICATION 9-20.3(2). 3. A CONTINUOUS LAYER OF MORTAR SHALL BE PLACED BETWEEN ADJUSTMENT RINGS AND BRICKS PRIOR -O PLACEMENT.
CORNER 16"MIN. SECTION A SECTION B 23 3l8' DIA. CL DIEM
B. ALL GRADE RINGS AND CASTINGS SHALL BE SET IN 4. ONLY BY APPROVAL OF THE CRY, THE USE OF BRICKS IS PERMITTED WHERE THE BRICKS ARE STAGGERED TO CREATE A RUNNING BOND OR Y2 BOND. 5i8'
MORTAR IN ACCORDANCE WITH STANDARD 1 5. BASE SECTION SHALL BE SEALED TO THE BOTTOM AREA OF THE ADJUSTMEN- SECTION WITH MORTAR. GASKET GROOVE DETAIL SPECIFICATION 9-04.3. THEN APPLY MORTAR TO INSIDE
AND CUTSIDE OF ALL JOINTS, RINGS, RISERS, AND 275/t E' DIA.
FRAMES 6. MCRTAR SHALL MEET THE REQUIREMENTS OF WSDOT/AP1'JA STANDARD SPECIFICATION 9-04-3
O I 7. PICK I LIFTING HOLES ARE TO BE GROUTED'WATER TIGHT. USE GROUT TYPE 2 FOR NON -SHRINK APPLICATIONS IN ACCORDANCE WITH STANDARD NOTES:
9. MORTAR SHALL S SPECIFICATION MIXED AND APPLIED PER 9.20,3(2). 34 VS' DIA.
R'S MANUFACTUREDIRECTIONS. 1. BOLT -DOWN CAPABILITY IS REQUIRED ON ALL FRAMES, GRATES, AND
8- MCRTAR SHALL BE MIXED AND APPLIED PER MANUFACTURERS DIRECTIONS, COVERS, UNLESS OTHERWISE SPECIFIED. PROVIDE TWO HOLES IN
10. FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE By THE FRAME THATARE VERTICALLY ALIGNED WITH THE GRATE OR FRAME SECTION VIEW
TAPPING, UNTIL FRAME IS FI ISH WITH PAVEMENT AS COVER SLOTS. THE FRAME SHALL ACCEPT THE 518'-11 NC x T ALLEN
W DE -ERMINED WITH A STRAIGHT EDGE OF SUFFICIENT 9 FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE BY TAPPING UNTIL FRAME IS FLUSH WITH PAVEMENT AS DETERMINED WITH A STRAIGHT EDGE OF HEAD CAP SCREW BY BEING TAPPED, OR OTHER APPROVED NOTES:
. SU=FICIENT LENG-H.
LENGTHMECHANISM. LOCATION OF BOLT -DOWN HOLES VARIES BY
MANUFACTURER. 1. ALL COVERS SHALL BE LOCKING UD PER EJ No. 3717C1
11. ALL MORTAR JOINTS SHALL BE TRIMMED FLUSH AND ' D ALL MORTAR JOINTS SHALL BE TRIMMED FLUSH AMID REMAIN VISIBLE UPON COMPLETION. OR APPROVED EOJAL.
3EE NOTE 1 REMAIN VISIBLE UPON COMPLETION. 2. REFERTO STANDARD SPECIFICATION 9.05.15(2) FOR ADDITIONAL
REQUIREMENTS.
ALTERNATIVE PRECAST BASE SECTION DNL=S<OTHFRWISFNOTFD,DRAWING 1%NOT TDSCALFINTS) 3. FOR FRAME DETAILS, SEE STANDARD PLAN204.00. UNIFSSOTHFRWISFNDTF.,ORAWINGISN(-T:ISCAT F(NTS)
Q VNLESS OTHERIV SE NOTED, DRAWING IS NOT TO SCALE (NTSI
STD. PLAN - 200.00 STD. PLAN - 202.00 UNLESS OTHERWISE NOTED, DRAWING IS NOT TO SCALE INT51
s�• PUBLIC WORKS APPR�. FC ip�• PUBLIC WORKS PR° STD. PLAN - 204.20 Ds STD. PLAN - 204.50
s1� DEPARTMENT CATCH BASIN TYPE 1 (jpZ 9/28/2018 �,♦ DEPARTMENT CATCH BASIN INSTALLATION �,q� g�zg/2018 1 t PUBLIC WORKS ROWs PUBLIC WORKS PP v
DEPARTMENT RECTANGULAR VANED GRATE (z'Az 9/28/2018 1 �, DEPARTMENT STORM ROUND FRAME AND COVERZ a; 28/2ols 1
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PIPE ALLOWANCES
MAXIMUM
PIPE MATERIAL
INSIDE
DIAMETER
REINFORCED OR FLAW
CONCRETE
1P
ALL METAL PIPE
1S
CPSSP^,
STD. SPEC. 9-05.20
12"
SOLID WALL PVC,
STO. SPEC. 9-115.12(1)
15_
PROFILE WALL PVC.
STC. SPEC. 9.05.12(2)
15'
' CORRUGATED POLYETHYLENE STORM
SEWER PIPE
CATCH B.451N FRAME ANC VANED
GRATE PER STD. PLAN 204.00
r RECTANGL LAR OR CIRCU-AR ADJUSTMENT
/ SECTION (TWO SECTIONS MAX.)
f! MOR-AR. (TYP.X SEE NOTE 5
28•NAAK 16"IAAAX FLATSLABTOP
SEE STANDARD PLANS 1.0, 110.1, 110.2, AND 111 FOR PAVEMENT
RESTORATION REQUIREMENTS
SURFACE RESTORATION AS
SPECIFIED IN CONTRACT DOCUMENTS , 48". 54'. 60". 72". 8.1•,
- -- 12" MIN. - EXISTING PAVEMENT SURFACE s 96" 120' OR 144' SEE NOTE 6, TYP.
\\ 15' IAAX. FOR
C'
MAINTANCE STEPS OR
- PRIVATE ROOF DRAIN LADDER
EN
/ COLLECTOR PIPE:
,v^J \ 8' AIN SEE NOTE 4 LOT LINE, TYP- W DIA MIN `^
C" DIA MIN. ROOF DRAIN PRIVATE TYPE I0,6% MIN.
L_ 12" ITYP.)
STUB WITH CLEANOUT (TYP.) CATCH BASIN 2 FT Nil V. COVER
NEAT LINE TRENCH
'CRUSHED SURFACING TOP COURSE" PER
W SDOT STD. SPEC 9-03.9(3)- COMPACTED -T 1 • MIN.
v✓ v p v TO 96% OF MAXIMUM DENSITY HOUSE (TYP.)
I 1'O"RING 2.6"MAT(. =T- REINFORCING STEEL, (TYP.)
MIN. 12' MAX.
1P- a GRAVEL BACKFILL FOR PIPE ZONE
1 I 1 12" 6 BEDDING PER WSPOT STD.
SECTKNJ 9-03.1213)
\ Y 'CRUSHED SURFACING TOP COURSE" -ER 3'MIN
.
WSDOT STD. SPEC 9-03,9(3).'BANK RUN SEPARATE DASE INTEGRAL I RI
PRECAST PRECAST WITH RISER
\ GRAVEL FOR TRENCH BACKFILL' PER
S. %mod WSDOT STD. SPEC 9-03.19, OR 'GRAVEL
BORROW- PER WSDOT STD. SPEC 91
COMPACTED TO 95% OF MAXIMUM DENSITY
C
\ r r \
SD SO SD PRIVATE JOINT '
UTILITY
5' MIN. W UMHNT CURB, SIDFWAI. K CITY STORM DRAIN (SO) SYSTEM
R.O.W. LINE PRIVATE STORM DRAIN (SD) SYSTEM,
BENCH AS NEEDED FOR S.
SHORING SYSTEM WHEN I \/\
S" MIN. DIA PIPE, SEE NOTE 1 /
ROOF DRAN TO CONNECT INTO CITY r
CATCH BASIN II MIN SIZE TYPE 1
NOTES:
DEPTH IS 4' OR GREA-ER /%
\�
CLEANOUT, TYP AT EVERY 90',
1. NO STEPS ARE REQUIRED WHEN HEIGHT IS 4' OR -ESS.
PI-E I \
OR 2ND 45' BEND, AND AT 100' MAX.
SPACING ON STRAIGHT -SECTIONS
2. THE BOTTOM OF THE PRECAST CAM I BASIN MAY BE
S-OPED TO FACILITA-E CLEANING.
PIPE ZONE BEDDING AND BACKFILL I
3. THE RECTANGULAR FRAME AND GRATE MUST BE
PER STD. PLANS 220.00 AND 220. 10 I
NOTES:
INSTALLED WITH THE FLANGE DOWN. THE FRAME MAY BE
CAST INTO THE ADJUSTMENT SECTION
1. SEE STD. PLANS 220.00 AND 220.10 FOR PIPE MATERIALS AND MINIMUM COVER REQUIREMENTS. 4. KNOCKOUTS SHALL HAVE.4 WALLTHICKNESS OF 2"
MINIMUM I O 2.5' MAXIMUM. PHOVIUE A 1 5" MINIMUM GAP
BETWEEN THE KNOCKOUT YJALL AND THE OUTSIDE OF THE
2- 1 HE HUM AND FUU I ING DRAIN SYS I EMS ARE PRIV.AI ELY MAIN I AIMED.
PI PE. AFTER THE PIPE IS INSTALLED, FILL THE GAP WITH
I• SEE NOTE 1 �I
JOINT MCRTAR IN ACCORDANCE WITH STANDARD
3. FLOW PATTERN SHOULD BE TO THE NEAREST CB IF GRADE ALLOWS. OR TO THE NEXT DOWNSTREAM CO.
SPECIFICATION 9-04.3,
UNPAVED AREAS I PAVED AREAS
4. ROOF DRAIN COLLECTORS MUST BE ANALYZED FOR CAPACITY, SIZED FOR 25-YEAR PEAK FLOW.
6. ALL GRADE RINGS, RISERS, AND CASTINGS SHALL BE SET
IN MORTAR IN ACCORDANCE WITH STANDARD
S-ECIFICA710H 9-04.3.
A PVC PIPE MUST BE SDR 35 OR THICKER AND MEET THE REQUIREMENTS OF ASTM D3034.
6. WHEN CONNECTING TO A NEW PIPE, USE A FLEXIBLE
6. PVC PIPE USED IN PRNATELY MAINTAINED DRAINAGE SYSTEMS MJST BE WHITE IN COLOR.
CONNECTOR (KOR-N-SEAL BOOT WITH CORRUGATED PIPE
ADAPTER OR APPROVED ECL'AL). WHEN CONNECTING TO
7. SEE CONSTRUCTION PLANS FOR SPECIFIC PROJECT REGLiREMENTS.
AN EXISTING PIPE, USE A FABRICATED SAND COLLAR OF
THE SAME MATERIAL AS THE CONNECTING PIPE.
NOTES:
8. AREA DRAIN WITHIN CRAWL SPACE IS ALLOWED TO CONNECT INTO THE STORM DRAINAGE SYSTEM W TH
7. MORTAR SHALL BE MIXED AND APPLIED PER
THE FOLLOWING CONDITIONS.
MANUFACTURER'S DIRECTIONS,
1. SEE WSDOT/APWA STANDARD SPECIFICATIONS SECTION 2-09.4 FOR
MEASUREMENT OF TRENCH WIDTH.
A- THE CONNECTION IS TO BE TIGHT LINED A MINIMUM OF 10' OUTSIDE OF THE FOUNDATION, AND IN NO
8. FRAME SHALL BE ADJUSTED TO PAVEMENT GRADE BY
--RAMIE
CASE CONNECTED UPSTREAM OF IHE FOOTING DRAIN SYS] EM FOR THE HOUSE.
TAPPING JNTIL IS FLUSH WITH PAVEMEN-AS
DETERMINED WITH A STRAIGHT EDGE OF SUFFICIENT
2. EXCAVATIONS OVER V CEEP SHALL COMPLY WITH THE SAFETY STANDARD
LENGTH.
DESCRIBED IN CHAPTER 295-155 PART N OF THE WAG.
B. THE AREA DRAIN MUST 9E ROUTED THROUGH A SUMP PUMP SYSTEM PRIOR TO CONNECTION TO THE
PUBLIC STORM DRAINAGE SYSTEM TO HELP PREVENT BACKUP DURING SURCHARGE CONDITIONS
9. ALL MORTAR JOINTS SHALL BE TRIMMED FLLSH AND
CATCH BASIN DIMENSIONS
CATCH BASIN
DIAMETER
MIN, WALL
THICKNESS
MIN. BASE MAXIMUM
THICKNESS KNOCKOUT SIZE
MINIMUM
DISTANCE
BETWEEN
KNOCKOUTS
48'
4-
6' 36'
8"
54'
4.5"
8' 42'
8"
60•
5"
S' 48"
8'
72"
6"
8' 60'
12'
84"
8"
12' TV
12"
96"
8"
1T 34'
12"
170'
7fW"
12' A[i
12"
144'
12"
1T ICE'
12"
PIPE ALLOWANCES
PPE MATERIAL WITH MAXIMUM INSIDE DIAMETER
CATCH BASIN
DIAMETER
CONCRETE
ALL METAL
CPBSP'
SOLID WALL
PVC2
PROFILE WALL
PVC,
48•
24'
3Y
24"
30"
30"
54•
30.
36,
30'
36,
36"
1.
36'
42'
36'
42"
42"
72'
42'
54'
42"
40"
40'
B4•
154'
6D'
S4'
48'
48'
96•
60-
72'
60'
48"
48'
120'
66'
84'
M.
49'
48'
144•
78"
95,
60'
48'
48'
'CORRUGA.TED POLYETHYLENE STORM SEWER PIPE (STD. SPEC. 9-0520)
2 STD, SPEC. 9-Ofi.12(1)
' STD. SPEC. 9-05.12(2)
3. MAXIMUM BACKFILL DEPTH ABOVE PIPE SHALL NOT BE EXCEEDED. AS REMAINVISIBLE UPON COMPLETION.
DETERMINED BY PIPE MANUFACTURER.
4. IN PAVED AREAS, F PIPE HAS LESS THAN 3' OF COVER, USE'CRUSHED
SURFACING TOP COURSE" FOR THE ENTIRE BACKFILL DEPTH ABOVE PIPE ZONE. JNLFSS OTHERWISE NOTED, DRAWING IS NOT TO SCALE (NTS)
5. SEE CONST7UCTION PLANS FOR SPECIFIC PROJECT REQUIREMENTS. AO% R,
STD. PLAN - 201.00
PRIPUBLIC WORKS
JNLESSOTHEF.WISE NOTED, O�AWINE IS MOTTO SGILE INTSI UNLESS OTHERWISE NOTED, OP.AWIAG IS NDT TO SCALE (INTS) DEPARTMENT CATCH BASIN TYPE 2 GAZ s/z$/zols I
STD. PLAN - 220.20 STD. PLAN - 225.00
GATE
s. H PUBLIC WORKS P" s PUBLIC WORKS TYPICAL PRIVATE STORM DRAIN J91iCif8✓�d 6Y:
�R� DEPARTMENT TYPICAL TRENCH AND BACKFILL GAZ 9I2s/zols I ;F� DEPARTMENT COLLECTION SYSTEM actin Pastucha 8' 13/zo
wb t nt.W�o-aWmrcna.wW 0A'E Nkw1tV4,'�.4*Hy-D.. DATE R 410 � 16
IN COMPLIANCE WITH CITY OF RENTON STANDARDS
=�h Qic WAsyDEVELOPMENT ENGINEERING
�SURFACE WATER UTILITY
CALL 48 HOURS Michael Sippo 03/30/2023
�
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2023403.15 DIG CALL 811
SURVEY BENCHMARK CONSULTANT 5. REISSUED FOR REVIEW SGC 2023/03/14 AB SURVEYED: SCALE: DATE:
SURVEYED VERTICAL: NAND 1988 •
CITY OF RENTON BM 1852, BRASS DISC IN CONIC SI NE 4TH ST AND 148TH AVE SE. PUBLISHED 138.614 METERS 4. ISSUED FOR REVIEW SGC 2022 12 02 AB AS SHOWN HORIZONTAL: NAD 1983/1991 2023 03 14
NAVD 88 = 454.769 FEET
MAINLAND ENGINEERING CONSULTANTS CORPORATION DESIGNED: EM C TY O M AD U EN 0 SHORT PLAT FIELDBCUK:
'�
CITY OF RENTON BM 2110 - 1/8" BRASS PIN IN 3" CONCONIC3. ISSUED FOR REVIEW SGC 2021 /04/14 AB RENTON MON IN CASE AT THE SI OF SE 176TH ST AND 116TH UNIT 206 8363 128TH STREET 2. ISSUED FOR REVIEW MK 2020/06/19 AB DRAWN: MK ONE 108TH AVE SE' RENTON, WA 98055 DRAWING No:
AVE SE PUB ELEV = 448.162 NAVD88 SURREY, B.C. V3W 4G1 ONE INCH DATUM
SURVEY 1. ISSUED FOR REVIEW MK 2019/11 /19 AB CHECKED: RM AT FULL SCALE Planning/Building/Public Works Dept. 16
TEL: (604) 543 8044 FAX: (604) 543 8104 IF NOT ONE INCH
CENTREPOINTE CONSULTANTS 14209 29TH ST E #105 SUMNER, WA 98390 PHONE: (253) 987-7859 EMAIL: CIVIL@MAINLANDENG.COM NAB
0. REVISION BY DATE APPR APPROVED: SCALE ACCORDINGLY STORM SEWER DETAILS SHEET
16_OF_42
#6 BARS @ 7- SPACING
12- (TYP.)
20"X224" DIA.,
4V
48' DIA.. OR 54-
MAX
DIA. HOLE
8"
2' (TYP)
17"
1"MIN.
I 9"
2 1r2' NIAX.
84- or 96" FLAT SLAB TOP
PREFABRICATED LADDER 12
MIN.
6T
96 BARS @ W SPACING
1
STEP 9 uz' MAX,
20"x24', 24" DIA.,
48' DIA„ OR 54"
DIA. HOLE
-
Lr ITYP.)
-
MIN.
8" 1' MIN.
2 1/2" MAX.
72" FLAT SLAB TOP
24' '8"MIN.
42
#4 BARS @ V SPACING
MIN-
ILMAX
43' MIN.
_
20x24QR
24'DLA HOLE
TYPICAL ORIENTATION ECCENTRIC CONE SECTION
"
2(TYP.)
IL 1
FOR ACCESS AND STEPS
R. l" MIN.
21fY MAX,
48", 34", or 60- FLAT SLAB TOP
��.
S.
2", 4", W, 12". OR 24" ONE 93 BAR HOOP FOR 6' �� r
HEIGHT NCREMENT(SPACED
EQUALLY), SEE NOTE 1 /
�S•
V T, 4'. 11
1 V. OR 24'
ONE X'3 BAR HOOP FOR 5' HEIGH I
INCREMENT (SPACED EQLALLY), CIRCULAR ADJUSTMENT SECTION
SEE NOTE 1
RECTANGULAR ADJUSTMENT SECTION
NOTES:
1. AS AN ACCEPTABLE ALTERNATIVE TO REBAR. WIRE MESH HAVING A MINIMUM AREA OF
112 SQUARE INCHES PER FOOT 61AY BE USED FOR ADJUSTMENT SECTIONS.
UN L=SS OTHERWISE NOTED, DRAWING 15 NOT TO SCALE INTS)
DS STD. PLAN - 204.60
s PUBLIC WORKS
MISCELLANEOUS DETAILS FOR
"PBVULZ
'�,�► DEPARTMENT
DRAINAGE STRUCTURES
9/28/2018 1
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