Friendlyville_Plans_5-29-26_accepted.pdf

PDF 3 MB Posted Jun 3, 2026

Attached to: SWW Fairgrounds Friendlyville Improvements
Solicitation number: 31-2607b
Issued by: Kittitas County, Washington

About this file

Written by GovTribe AI · Jul 13, 2026

This is a civil engineering design plan prepared by Fuller Designs for Lewis County's Friendlyville project located at 2545 N National Avenue, Chehalis, Washington 98532. The project encompasses 32.89 acres of open space government zoned land (Parcel Number 005605084002) and involves site improvements including asphalt paving, utility infrastructure, grading, erosion control, and stormwater management. The scope includes installation of approximately 10,400 square feet of asphalt pavement, a 40-foot by 14-foot by 5-foot infiltration trench with stormwater filtration systems, 4-inch PVC drainage piping, yard hydrants, electrical conduit and luminaire bases, and a Contech StormFilter catch basin for water quality treatment. The plans are dated May 29, 2026 and approved for construction with an expiration date of December 21, 2026. Grading operations include 400 cubic yards of cut and 400 cubic yards of fill, with the contractor responsible for verifying all dimensions in the field, maintaining record drawings, and obtaining necessary permits for right-of-way work. The site utilizes existing city water and sanitary sewer connections with topographic information provided by Butler Surveying Inc. and elevation data referenced to NAVD 88.

The contractor must comply with the 2024 Washington State Department of Transportation Standard Specifications, the Manual on Uniform Traffic Control Devices, City Road Standards, City Drainage Standards, and the International Building Code. Temporary erosion and sediment control measures are required, including silt fencing and inlet protection installed per the plans, with seeding or soil coverage required within specified timeframes dependent on season. The contractor bears full responsibility for job site conditions throughout construction, must identify and legally dispose of unsuitable materials encountered, maintain utility accessibility, and restore disturbed areas. All utilities shown on the plans are approximate, requiring the contractor to call 811 for underground locate services and verify exact utility locations before beginning work. Fuller Designs will not certify record drawings without inspection of below-grade utilities and structures, necessitating contractor notification prior to backfilling.

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Other files

File	Type	Posted
SWW_Fairgrounds_Friendlyville_Improvements_(Addendum_#3_Revision).pdf	PDF	Jun 25, 2026
Mandatory_pre_bid_job_walk_sign_up_sheet_for_Friendlyville.pdf	PDF	Jun 16, 2026
Friendlyville_Plans_5-29-26_accepted.pdf	PDF	Jun 3, 2026
Certificate_of_Insurance_Sample.pdf	PDF	Jun 3, 2026

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T N

D R

C H

D R

G T

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-4

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C0.1

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N /A

ABBREVIATIONS:

AC ASPHALT CONCRETE

BCR BEGIN CURB RETURN

BM BENCHMARK

BVCS BEGIN VERTICAL CURVE STATION

BCVE BEGIN VERTICAL CURVE ELEVATION

CATV CABLE TELEVISION

CB CATCH BASIN

CL CENTERLINE

CMP CORRUGATED METAL PIPE

CO CLEAN OUT

CY CUBIC YARD

° DEGREES

Ø DIAMETER

EE ELECTRICAL

ECR END CURB RETURN

EL ELEVATION

EOP EDGE OF PAVEMENT

EVCS END VERTICAL CURVE STATION

EVCE END VERTICAL CURVE ELEVATION

EX EXISTING

FF FINISH FLOOR

FG FINISH GRADE

FH FIRE HYDRANT

FL FLOW LINE

FM FORCE MAIN

G GAS

GB GRADE BREAK

GM GAS METER

GV GATE VALVE

HDPE HIGH DENSITY POLYETHYLENE

HP HIGH POINT

IE INVERT ELEVATION

K CALCULATED CURVE VALUE

L LENGTH

LCV LENGTH VERTICAL CURVE

LF LINEAR FEET

M METER

MH MAN HOLE

MJ MECHANICAL JOINT

NAP NOT A PART OF PROJECT

NFC NOT FOR CONSTRUCTION

OHP OVER HEAD POWER

P POWER

PC POINT OF CURVATURE

PI POINT OF INTERSECTION

PL PROPERTY LINE

POB POINT OF BEGINNING

POC POINT OF CONNECTION

PRC POINT OF REVERSE CURVATURE

PT POINT OF TANGENCY

PVC POLY-VINYL CHLORIDE

R RADIUS

RCP REINFORCED CONCRETE PIPE

RD ROOF DRAIN

RFC RELEASED FOR CONSTRUCTION

ROW RIGHT OF WAY

RPBA REDUCED PRESSURE BACKFLOW ASSEMBLY

S SLOPE

SF SQUARE FOOT

SD STORM DRAIN

SS SANITARY SEWER

ST STORM

STA STATION

SW SIDEWALK

T TELEPHONE

TB TRUST BLOCK

TC TOP OF CURB/CONCRETE

TESC TEMPORARY EROSION AND SEDIMENT CONTROL

TG TOP OF GRATE

TYP TYPICAL

UGP UNDERGROUND POWER

W WATER

WM WATER METER

WV WATER VALVE

± APPROXIMATELY

% PERCENT

Δ DELTA

VICINITY MAP

SITE

PROJECT INFORMATION:

APPLICANT: LEWIS COUNTY

360 NW NORTH ST

CHEHALIS, WA 98532

SITE ADDRESS: 2545 N NATIONAL AVE,

CHEHALIS, WA 98532

PARCEL NUMBER: 005605084002

ZONING (CITY): OSG - OPEN SPACE GOVERNMENT (CHEHALIS)

LOTS : 1 EXISTING 1 PROPOSED

ACRES: 32.89

SITE SOILS: URBAN LAND-XERORTHENTS COMPLEX

WATER: CITY

SANITARY SEWER: CITY

GRADING: 400 ± CY CUT

400 ± CY FILL

SYMBOLS

EXISTING PROPOSED DESC.

FRIENDLYVILLE (LEWIS COUNTY)

SECTION 20 TOWNSHIP 14N RANGE 02W

CITY OF CHEHALIS

WASHINGTON

DRAWING CONTENTS:

C0.1 - CIVIL COVER

C1.1 - EX CONDITIONS & TESC PLAN

C1.2 - TESC DETAILS

C2.1 - OVERALL SITE & UTILITY PLAN

C2.2 - OVERALL SITE DETAILS

C3.1 - GRADING PLAN

GEOTECHNICAL INFORMATION:

A GEOTECHNICAL REPORT WAS NOT PREPARED FOR THIS PROJECT. IN

LIEU OF A REPORT ALL CONSTRUCTION SHALL COMPLY WITH STANDARD

SPECIFICATIONS.

TOPOGRAPHIC INFORMATION:

TOPOGRAPHIC INFORMATION DEPICTED IN THESE DRAWINGS WAS

PROVIDED BY BUTLER SURVEYING INC. TOPOGRAPHIC INFORMATION

WAS NOT FIELD VERIFIED BY FULLER DESIGNS.

SURVEY INFORMATION:

BASIS OF ELEVATION

NORTH AMERICAN VERTICAL DATUM OF 1988 (NAVD 88) RELATIVE TO WASHINGTON DEPT.

OF TRANSPORTATION CONTROL POINT "L 532" HAVING A PUBLISHED ELEVATION OF 175.105'

(NAVD 88).

BASIS OF BEARING

WASHINGTON STATE PLANE SOUTH ZONE (NAD 83/2011) PER TIES TO WASHINGTON STATE

DEPARTMENT OF TRANSPORTATION CONTROL POINTS "L 532" AND "KRESKY". HELD THE

PUBLISHED COORDINATE AT "L 532" AND APPLIED THE COMBINED SCALE FACTOR OF

0.99991130 TO PRODUCE THE GROUND DISTANCES DEPICTED HEREON.

PROJECT SPECIFICATIONS:

THE WORK ON THIS PROJECT SHALL BE PERFORMED IN ACCORDANCE

WITH THE STANDARD SPECIFICATIONS FOR ROAD, BRIDGE AND

MUNICIPAL CONSTRUCTION, 2024 WASHINGTON STATE DEPARTMENT

OF TRANSPORTATION (WSDOT) (HEREAFTER "STANDARD

SPECIFICATIONS").

ALSO INCORPORATED INTO THESE CONTRACT DOCUMENTS BY

REFERENCE ARE:

A. MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MUTCD)

B. CITY ROAD STANDARDS

C. CITY DRAINAGE STANDARDS

D. THE INTERNATIONAL BUILDING CODE (IBC)

CURRENT EDITIONS OF THESE STANDARDS SHALL BE USED WHICH

EXIST ON THE DATE OF CONTRACT ACCEPTANCE.

CONTRACTOR SHALL OBTAIN COPIES OF THESE PUBLICATION AT

CONTRACTOR'S OWN EXPENSE.

THE CONTRACTOR IS RESPONSIBLE FOR PROVIDING ALL LABOR,

MATERIALS, TOOLS, EQUIPMENT, TRANSPORTATION, SUPPLIES AND

INCIDENTALS REQUIRED TO COMPLETE ALL WORK SHOWN ON THESE

DRAWINGS. ONCE WORK IS COMPLETED CONTRACTOR SHALL OBTAIN

ACCEPTANCE BY THE CITY AND PROJECT ENGINEER.

THE INTENT OF THESE DRAWINGS IS TO PRESCRIBE A COMPLETE

PROJECT. OMISSIONS FROM THE DRAWINGS OF DETAIL OF WORK

WHICH IS NECESSARY TO CARRY OUT THE INTENT OF THE DRAWINGS

SHALL NOT RELIEVE THE CONTRACTOR FROM PROVIDING THE

OMITTED WORK.

ANY PROPOSED ALTERATIONS BY THE CONTRACTOR AFFECTING THE

REQUIREMENTS AND INFORMATION IN THESE DRAWINGS SHALL BE IN

WRITING AND WILL REQUIRE APPROVAL OF THE ENGINEER AND

INSPECTOR.

WORK IN RIGHT OF WAY:

CONTRACTOR SHALL OBTAIN A RIGHT OF WAY PERMIT PRIOR TO

COMMENCING ANY WORK LOCATED IN RIGHT OF WAY. ALL WORK

PERFORMED IN THE RIGHT OF WAY SHALL ADHERE TO DRAWINGS,

STANDARD SPECIFICATIONS, AND REQUIREMENTS OUTLINED IN THE

RIGHT OF WAY PERMIT.

RECORD DRAWINGS:

FULLER DESIGNS IS REQUIRED BY THE CITY TO PROVIDE RECORD

DRAWING CERTIFICATION PRIOR TO FINAL CITY ACCEPTANCE. FULLER

DESIGNS WILL NOT CERTIFY RECORD DRAWINGS WITHOUT

INSPECTION OF BELOW GRADE UTILITIES AND STRUCTURES. PRIOR TO

BACKFILLING, CONTRACTOR SHALL NOTIFY FULLER DESIGNS OF

NECESSARY INSPECTIONS.

CONTRACTOR TO VERIFY ALL DIMENSIONS IN FIELD AND NOTIFY

ENGINEER OR INSPECTOR OF INCONSISTENCIES PRIOR TO START OF

CONSTRUCTION. CONTRACTOR SHALL MAINTAIN ONE SET OF THE

CONTRACT DRAWINGS THAT SHALL INCLUDE: ANY ALTERATIONS OR

LOCATION OF UNDERGROUND UTILITIES ENCOUNTERED DURING THE

PROGRESS OF THE PROJECT, ANY ALTERATIONS MADE TO THE

IMPROVEMENTS BEING INSTALLED. MARKED DRAWINGS SHALL BE

CLEAR AND LEGIBLE. DRAWINGS SHALL BE MARKED "RECORD

DRAWINGS" AND SHALL BE SUBMITTED TO THE ENGINEER UPON

PROJECT COMPLETION.

CONTRACTOR LIABILITY NOTE:

CONTRACTOR AGREES TO ASSUME SOLE AND COMPLETE

RESPONSIBILITY FOR THE JOB SITE CONDITIONS DURING THE COURSE

OF CONSTRUCTION OF THIS PROJECT. THIS REQUIREMENT SHALL

APPLY CONTINUOUSLY THROUGHOUT PROJECT EXECUTION AND NOT

BE LIMITED TO WORKING HOURS. CONTRACTOR SHALL PROGRESS

WORK IN A MANOR THAT SHALL INDEMNIFY AND HOLD FULLER

DESIGNS HARMLESS FROM ALL LIABILITY IN CONNECTION WITH

CONTRACTOR'S PERFORMED WORK.

REMOVAL OF UNSUITABLE MATERIALS:

IF UNSUITABLE MATERIALS AS DEFINED BY THE STANDARD

SPECIFICATIONS ARE ENCOUNTERED, THIS MATERIAL SHALL BE

REMOVED TO THE DEPTH REQUIRED BY THE ENGINEER OR

INSPECTOR AND REPLACED WITH SUITABLE MATERIAL.

PRIOR TO COMMENCING CONSTRUCTION THE CONTRACTOR SHALL

IDENTIFY A SITE TO DISPOSE OF UNSUITABLE MATERIALS. IF

UNSUITABLE MATERIAL IS IDENTIFIED ON SITE THE CONTRACTOR

SHALL PROVIDE CALCULATION OF UNSUITABLE MATERIAL AND NOTIFY

THE OWNER'S REPRESENTATIVE PRIOR TO REMOVAL. THE

CONTRACTOR SHALL DISPOSE OF UNSUITABLE MATERIAL LEGALLY

OFF SITE.

GENERAL NOTES:

CONTRACTOR SHALL COORDINATE ALL CONSTRUCTION ACTIVITIES

WITH ADJACENT PROPERTY OWNERS. DRIVEWAYS AND UTILITY

SERVICES SHALL REMAIN ACCESSIBLE AT ALL TIMES.

AREAS DISTURBED DURING CONSTRUCTION SHALL BE RESTORED TO

THEIR ORIGINAL PRE-CONSTRUCTION STATE OR BETTER UPON

COMPLETION OF WORK.

ANY DESIGN CHANGE(S) MADE TO THE PLANS BY OUTSIDE PARTIES

(INCLUDING JURISDICTIONS, CITIES AND COUNTIES), WILL BE HELD

RESPONSIBLE FOR ANY LIABILITIES THAT MAY OCCUR DUE TO

CHANGE(S).

UTILITIES LOCATE NOTE:

EXISTING UTILITIES LOCATION SHOWN IN THIS PLAN SET IS BASED ON

INFORMATION OBTAINED FROM VARIOUS RECORDS RESEARCH,

ASBUILT DATA, AND FIELD MEASUREMENTS. FULLER DESIGNS

ASSUMES NO RESPONSIBILITY FOR EXACT LOCATION OF UTILITIES

EITHER SHOWN OR NOT SHOWN IN THESE DRAWINGS. CONTRACTOR

SHALL VERIFY THE EXACT SIZE, DEPTH, LOCATION, AND

ARRANGEMENT OF ALL UTILITIES PRIOR TO CONSTRUCTION.

CONTRACTOR SHALL CALL UNDERGROUND LOCATE AT 811 PRIOR TO

PERFORMING CONSTRUCTIONS ACTIVITIES.

LEGEND

LINETYPES

EXISTING PROPOSED DESC.

AC PAVEMENT

GRAVEL

CONCRETE

LANDSCAPE / GRASS AREA

X X X X

FM FM FM

G G G

SS SS SS

ST ST ST

SF SF

UE UE UE

w ww

OE OE

HATCH

EXISTING PROPOSED DESC.

BUILDING FOOTPRINT

BUILDING SETBACK

CLEARING AND GRUBBING

CONTOUR LINE (MAJOR)

CONTOUR LINE (MINOR)

CULVERT

DITCH

EASEMENT

EDGE OF PAVEMENT

EDGE OF GRAVEL

FENCE

FIBER OPTIC

FORCE MAIN

GAS MAIN

GRADE BREAK

LANDSCAPE

LOT LINE

PROJECT BOUNDARY

RIGHT-OF-WAY

ROAD CENTERLINE

ROAD CUT LINE

SANITARY SEWER PIPE

STORM PIPE

SIDEWALK

SILT FENCE

UNDERGROUND ELECTRIC

OVERHEAD ELECTRIC

TELECOMMUNICATION

WATER

OT OT OT

GB GB GB

CG CG

Y DH

Y D

XXX

MB MB

E E

CATCH BASIN

ELECTRIC TRANSFORMER

FIRE HYDRANT

GAS VALVE

ILLUMINARE & POLE

JUNCTION BOX

MAIL BOX

SANITARY SEWER MANHOLE

STORM MANHOLE

STREET SIGN

SPOT ELEVATION

SURFACE FLOW

TELECOMMUNICATION PEDESTAL

TREE

UTILITY POLE

WATER METER

WATER VALVE

J J

GVGV

APPROVED FOR CONSTRUCTION

BY DATE

PUBLIC WORKS DIRECTOR

APPROVAL EXPIRES 1 YEAR FROM ABOVE DATE

CENTRALIA/CHEHALIS

CITY LIMITS LINE

5/29/2026

Exp. 12/21/2026

G G

U E

G G

GGG

UE UE

UEU

ICV

ST ST ST ST ST ST ST

D ST ST STST

G G G

G G

W W

SSSS

G G

X X

SF SF SF SF

T N

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) 8

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R P

C1.1

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SECTION 20 TOWNSHIP 14N RANGE 02W

040 40 8020

SCALE 1" = 40'

APPROVED FOR CONSTRUCTION

BY DATE

PUBLIC WORKS DIRECTOR

APPROVAL EXPIRES 1 YEAR FROM ABOVE DATE

TESC PLAN NOTES:

T1 INSTALL SILT FENCE PER DETAIL 3-4, SHEET C1.2

INSTALL INLET PROTECTION PER DETAIL, SHEET C1.2T2

EROSION CONTROL NOTES:

1. ALL EXPOSED SOIL SURFACES SHALL BE SEEDED WITH AN

EROSION CONTROL SEED MIX OR HYDROSEEDED IF NOT WORKED

WITHIN 7 CALENDAR DAYS FROM MAY 1 TO SEPTEMBER 30. SOIL

SHALL BE COVERED WITHIN 2 DAYS FROM OCTOBER 1 TO APRIL 30.

2. SEEDED AREAS WILL BE COVERED WITH MULCH, HAY OR OTHER

PROTECTIVE COVERING APPROVED BY THE ENGINEER TO

PREVENT WASHOUT DURING RAIN EVENTS.

3. CONTRACTOR SHALL APPLY WATER TO GRAVEL SURFACES

DURING CONSTRUCTION TO MINIMIZE FUGITIVE DUST.

4. ROUTINE INSPECTION AND MAINTENANCE OF ALL INSTALLED

EROSION AND SEDIMENT CONTROL BMPS, ESPECIALLY AFTER

STORMS, IS REQUIRED.

5. ANY SEDIMENT WHICH IS TRACKED ONTO PAVEMENT SHALL BE

REMOVED BY SHOVELING OR STREET SWEEPING. THE SEDIMENT

COLLECTED BY SWEEPING/SHOVELING SHALL BE REMOVED OR

STABILIZED ON‐SITE. THE PAVEMENT SHALL NOT BE CLEANED BY

WASHING DOWN THE STREET.

6. IF STABILIZED CONSTRUCTION ENTRANCE IS NOT EFFECTIVE IN

PREVENTING SEDIMENT FROM BEING TRACKED OUT OF THE SITE,

A WHEEL WASH AND/OR TIRE BATH SHALL BE LOCATED ON-SITE.

NOTES TO CONTRACTOR:

1. UTILITIES ON PLANS ARE APPROXIMATE AREA, CONTRACTOR TO

VERIFY BEFORE CONSTRUCTION

DEMOLITION NOTES:

D1 REMOVE AND SALVAGE EX LUMINARE. OLD LUMINARE TO BE STORED

IN CONVENIENT LOCATION FOR COUNTY USE. ENSURE CONNECTION

TO DOWNSTREAM LUMINARES REMAIN INTACT

RELOCATE EX ELECTRICAL PANEL OUTSIDE OF PROPOSED PAVING

LIMITS. BY OTHERS

REMOVE ABOVE GROUND PORTION OF WATER VALVE STEM.

REPLACE AT PROPOSED GRADE

REMOVE EX FENCE

PROJECT BOUNDARY

EX MINOR TOPO

EX MAJOR TOPO

EX CB

EX RD CENTERLINE

EX GAS LINE

EX FOG LINE

EX STORMWATER PIPE

EX SHACK

EX BARN

EX UNDERGROUND ELECTRIC

EX POWER VAULT

EX LUMINARE

EX BLUE PAVILLION

EX FOOD SHACK

EDGE OF ASPHALT

EX FENCE

SPEED BUMP

EDGE OF ASPHALT

TICKET BOOTH

GATE POST

EX CURB

EX OFFICE

SHEDS

EX SIGN

RETAINING WALL

FIRE HYDRANT

EX WATER LINE

EX SEWER

EX STALLS

T2 T2

EX FRENCH DRAIN

EX SURVEY

BENCHMARK

T N

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C1.2

N D

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N /A

SECTION 20 TOWNSHIP 14N RANGE 02W

APPROVED FOR CONSTRUCTION

BY DATE

PUBLIC WORKS DIRECTOR

APPROVAL EXPIRES 1 YEAR FROM ABOVE DATE

G G

G G G

G G

U E U

U E

G G

GGGG

UE UE

ICV

ST ST ST ST ST

D ST ST ST ST

G G G G G

G G

W W

G G

X X X

U E

T N

D R

C H

D R

G T

N S

K R

, S U

, W

) 8

-4

R P

C2.1

N D

O U

SECTION 20 TOWNSHIP 14N RANGE 02W

030 30 6015

SCALE 1" = 30'

APPROVED FOR CONSTRUCTION

BY DATE

PUBLIC WORKS DIRECTOR

APPROVAL EXPIRES 1 YEAR FROM ABOVE DATE

SITE PLAN NOTES:

P1 INSTALL 10,400 SF OF ASPHALT PER SECTION THIS SHEET

INSTALL GATE CONNECTING TO EX FENCEP2

UTILITY PLAN NOTES:

U1 INSTALL BASE AND CONDUIT ONLY FOR LIGHT POST 4' OFF WALKWAY

PER DETAIL 2-16, SHEET C2.2

INSTALL YARD HYDRANTS ATTACHED OR NEAR LIGHT POLES TO

AVOID MOWING HAZARDS PER DETAIL SHEET C2.2

WATER PIPE TO CONNECT TO EX MAIN

INSTALL 1.5'' PVC CONDUIT AS SHOWN FROM TRANSFORMER TO

LUMINARE BASES AS SHOWN. MAINTAIN MIN 18'' OF COVER OVER

CONDUIT. WIRING AND CONNECTION BY OTHERS

CONDUIT TO TERMINATE WITHIN 3' OF TRANSFORMER BASE. FINAL

CONNECTION INTO TRANSFORMER TO BE COMPLETED BY OTHERS

STORMWATER PLAN NOTES:

ST1 INSTALL 2' WIDE CONVEYANCE DRAIN TO COLLECT WATER AND FLOW

TOWARDS PROPOSED CATCH BASIN SEE SECTION THIS SHEET

4'' PVC PERF PIPE

4'' PVC NON PERF PIPE UNDERNEATH ASPHALT WALKWAY

INSTALL CONTECH STORM FILTER CATCH BASIN PER DETAIL ON

SHEET C2.2

40' LONG X 14' WIDE X 5' DEEP INFILTRATION TRENCH, SEE SECTION A

SHEET C2.2

PROPOSED 4'' CLEANOUT PER DETAIL THIS SHEET

INSTALL OBSERVATION WELL. SEE DETAIL ON THIS SHEET.

OBSERVATION WELL SHALL BE INSTALLED AT POSITION SHOWN

WITHIN 5' OF END OF INFILTRATION GALLERY

ST2

ST3

ST4

ST5

15.00

R15.0

35.0020.00

SEWER CROSSING CONTRACTOR

TO VERIFY SEWER DEPTH

BEFORE CONSTRUCTION

ST1

ST2

ST3

ST4

ST5

4'' CLASS B ASPHALT

OR HMA

2'' TOP COURSE (5/8'' MINUS)

ASPHALT PAVEMENT SECTION

NTS

6'' BALLAST (1.25'' MINUS)

COMPACTED SUBGRADE

CSTC MIN

DRAIN ROCK

12'' MIN

4'' DI PERF PVC PIPE

CONVEYANCE DRAIN SECTION

NTS

A C2.2

PROPOSED MINOR

CONTOUR LINE

ST1

GEOTEXTILE FABRIC

WATER CROSSING CONTRACTOR

TO VERIFY WATER DEPTH

BEFORE CONSTRUCTION

6'' MIN

ASTM C33 SAND

ST6

MAINTAIN MIN 0.5%

SLOPE

MAINTAIN MIN 0.5%

SLOPE

IE=167.40

IE=169.00

3'' MIN

6'' MIN

12''

10'' 8 3/4'' 6 3/4''

6''

TRENCH BOTTOM BEDDING AS REQUIRED

4'' - 45 DEG ELBOW

IN LINE CLEANOUT WILL

UTILIZE A 4'' WYE

4'' PIPE

4'' - 45 DEG ELBOW

SEAL WITH

SILICONE OR

APPROVED

EQUAL SEALER

COMPRESSION PLUG

INLAND FOUNDRY

#248 VALVE BOX

WITH "SEWER"

CAST IN LID

RECESSED HANDLE

TYPE COVER

SECTION

FINISHED GRADE

C H

CLEANOUT

ST7

28" x 28" [711 x 711]

VANED INLET GRATE

(SOLID OPTIONAL WITH

INLET PIPE)

PLAN VIEW

CASTINGS NOT SHOWN

FLOW

28" x 28" [711 x 711]

ACCESS COVER

RIGHT SIDE VIEWELEVATION VIEW

2' -4

E R

2'-4" [711]

INSIDE RIM

2'-4" [711]

INSIDE RIM

2' -8

5'-1" [1549]

OUTLET PIPE

WITH BOOT

(12" [300]Ø MAXIMUM)

OPTIONAL INLET PIPES AND

ALTERNATE OUTLET PIPE LOCATIONS

2' -0

4'-5" [1346]

BYPASS

WEIR

ASSEMBLY

STORMFILTER

CARTRIDGE

(OPTIONAL)

ALTERNATE OUTLET

PIPE LOCATIONS

OUTLET PIPE

WITH BOOT

2'-0" [610]

2'-8" [813]

2.35' [718] MIN. (18" [457])

3.1' [946] MIN. (27" [686])

SEE LINKING OPTIONS ABOVE

FOR MAXIMUM RIM TO INVERT

BYPASS

WEIR

ASSEMBLYSTORMFILTER

CARTRIDGE

DECK

BYPASS

WEIR

ASSEMBLY

FINISHED GRADE

STORMFILTER

CARTRIDGE

(STANDARD)

R T

6" [1

. A

SINGLE UNITDUAL UNIT

(SHIPPED IN 1 PIECE)

GRATESOLID GRATE SOLIDGRATE SOLID FLOW

TRIPLE UNIT

(SHIPPED IN 2 PIECES)

GRATESOLIDSOLID FLOWFLOWGRATE SOLID SOLID

QUAD UNIT

(SHIPPED IN 2 PIECES)

GRATESOLIDSOLID FLOWSOLIDGRATE GRATE GRATESOLID

T N

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C2.2

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N /A

SECTION 20 TOWNSHIP 14N RANGE 02W

D F

O R

C O

R U

O R

R F

R O

M A

40.00'1.00'

1' MIN

NATIVE SOIL

1-1/2'' - 3/4'' WASHED

DRAIN ROCK

INFILTRATION GALLERY

NTSA

4' MIN

GEOTEXTILE FILTER FABRIC

PLACED ON TOP AND SIDES OF

DRAIN ROCK SECTION

12'' FILL / LANDSCAPE

4'' PVC OUTLET PIPE STUBBED

1' INTO DRAIN ROCK SECTION.

SLOPE = 0.00%

CONTECH LID

CONVEYANCE DITCH

4'' PVC PIPE

IE = 167.40

CONTECH CATCH

BASIN PER DETAIL

THIS SHEET

11815 NE Glenn Widing Drive, Portland, OR 97220

800-548-4667 503-240-3393 800-561-1271 FAX

STORMFILTER DESIGN NOTES

· CONCRETE CATCHBASIN STORMFILTER TREATMENT CAPACITY VARIES BY CARTRIDGE COUNT AND LOCAL APPROVALS

· PEAK CONVEYANCE CAPACITY IS 1.3 CFS

· CONCRETE CATCHBASIN STORMFILTER IS AVAILABLE WITH UP TO TWO (2), 18" [457] OR 27" [686] TALL CARTRIDGES

· UP TO 4 INDIVIDUAL UNITS MAY BE LINKED FOR AN ULTIMATE CAPACITY OF EIGHT (8) CARTRIDGES

CARTRIDGE SIZE (in. [mm]) 27 [686] 18 [457] RECOMMENDED HYDRAULIC DROP (ft. [mm]) 3.05 [930] 2.3 [701] SPECIFIC FLOW RATE (gpm/sf [L/s/m2]) 2 [1.36] 1.67* [1.13]* 1 [0.68] 2 [1.36] 1.67* [1.13]* 1 [0.68] CARTRIDGE FLOW RATE (gpm [L/s]) 22.5 [1.4] 18.79 [1.19] 11.25 [0.71] 15 [0.95] 12.53 [0.79] 7.5 [0.47]

* 1.67 gpm/sf [1.13 L/s/m2] SPECIFIC FLOW RATE IS APPROVED WITH PHOSPHOSORB® (PSORB) MEDIA ONLY

SITE SPECIFIC

DATA REQUIREMENTS

STRUCTURE ID

WATER QUALITY FLOW RATE (cfs [L/s]) 0.0219 PEAK FLOW RATE (cfs [L/s]) 0.16 RETURN PERIOD OF PEAK FLOW (yrs) 100

CARTRIDGE SIZE (27, 18) 27

CARTRIDGE FLOW RATE 11.25

MEDIA TYPE (PERLITE, ZPG, PSORB) ZPG

NUMBER OF CARTRIDGES REQUIRED 1

RIM ELEVATION 170

PIPE DATA: INVERT MATERIAL DIAMETER

INLET PIPE 1 167.40 PVC 4''

INLET PIPE 2

OUTLET PIPE 166.90 PVC 4''

NOTES/SPECIAL REQUIREMENTS:

GENERAL NOTES

1. CONTECH TO PROVIDE ALL MATERIALS UNLESS NOTED OTHERWISE.

2. DIMENSIONS MARKED WITH ( ) ARE REFERENCE DIMENSIONS. ACTUAL DIMENSIONS MAY VARY.

3. ALTERNATE DIMENSIONS ARE MILLIMETERS [mm] UNLESS NOTED OTHERWISE.

4. FOR FABRICATION DRAWINGS WITH DETAILED STRUCTURE DIMENSIONS AND WEIGHTS, PLEASE CONTACT YOUR CONTECH ENGINEERED

SOLUTIONS LLC REPRESENTATIVE. www.ContechES.com

5. STORMFILTER WATER QUALITY STRUCTURE SHALL BE IN ACCORDANCE WITH ALL DESIGN DATA AND INFORMATION CONTAINED IN THIS

DRAWING. CONTRACTOR TO CONFIRM STRUCTURE MEETS REQUIREMENTS OF PROJECT.

6. FILTER CARTRIDGES SHALL BE MEDIA-FILLED, PASSIVE, SIPHON ACTUATED, RADIAL FLOW, AND SELF CLEANING. RADIAL MEDIA DEPTH

SHALL BE 7-INCHES [178]. FILTER MEDIA CONTACT TIME SHALL BE AT LEAST 38 SECONDS.

7. SPECIFIC FLOW RATE IS THE MEASURE OF THE FLOW (GPM [L/S]) DIVIDED BY THE MEDIA SURFACE CONTACT AREA (SF [m2]).

8. STRUCTURE SHALL MEET AASHTO HS20 LOAD RATING, ASSUMING EARTH COVER OF 0' - 0'-2" [51] AND GROUNDWATER ELEVATION AT, OR

BELOW, THE OUTLET PIPE INVERT ELEVATION. ENGINEER OF RECORD TO CONFIRM ACTUAL GROUNDWATER ELEVATION. CASTINGS

SHALL MEET AASHTO M306 AND BE CAST WITH THE CONTECH LOGO.

INSTALLATION NOTES

1. ANY SUB-BASE, BACKFILL DEPTH, AND/OR ANTI-FLOTATION PROVISIONS ARE SITE-SPECIFIC DESIGN CONSIDERATIONS AND SHALL BE

SPECIFIED BY ENGINEER OF RECORD.

2. CONTRACTOR TO PROVIDE EQUIPMENT WITH SUFFICIENT LIFTING AND REACH CAPACITY TO LIFT AND SET THE STORMFILTER

STRUCTURE.

3. CONTRACTOR TO PROVIDE AND INSTALL PIPES. MATCH PIPE INVERTS SHOWN ON PROJECT SPECIFIC DRAWINGS.

4. CONTRACTOR TO TAKE APPROPRIATE MEASURES TO PROTECT CARTRIDGES FROM CONSTRUCTION-RELATED EROSION RUNOFF.

CONCRETE CATCHBASIN

STORMFILTER

STANDARD DETAIL

FLOW

FOOD TRUCK WATER CONNECTION (TYP)

NTS

LUMINARE BASE. SEE DETAIL

NATIVE

GRADE AND

LAWN

DRAIN ROCK

BLEED VALVESADDLE CONNECTION

TO EX WATER LINE

EX PRIVATE

WATER LINE

3/4'' WATER LINE

PLACE YARD HYDRANT ASSEMBLY WITHIN 6'' OF

LUMINARE BASE TO MINIMIZE MOWING

OBSTRUCTIONS

FROST FREEZE

YARD HYDRANT

ASSEMBLY

6'' ASTM33 SAND

EL = 169.00

RIM = 170.00

IE = 166.90

EXCAVATED SURFACE OF NATIVE SOIL SHALL

BE SCARIFIED AN NOT COMPACTEDNOTE:

CONTECH DETAIL SHOWN FOR

INFORMATIONAL PURPOSES ONLY.

CONTRACTOR MAY PROPOSE

ALTERNATE FILTERING CB (SUCH AS ADS

BAYSAVER SYSTEM) WITH APPROVAL

FORM PROJECT ENGINEER.

EL = 164.00

PLACE SCREEN AT

END OF OUTLET PIPE

OBSERVATION WELL PER

DETAIL SHEET C2.1

G G

G G G

G G

U E U

U E

G G

GGGG

UE UE

ICV

ST ST ST ST

ST ST ST ST ST

D ST ST ST ST

G G G G G

G G

W W

G G

X X X

U E

T N

D R

C H

D R

G T

N S

K R

, S U

, W

) 8

-4

R P

C3.1

G R

G P

N JF

N D

O U

SECTION 20 TOWNSHIP 14N RANGE 02W

030 30 6015

SCALE 1" = 30'

APPROVED FOR CONSTRUCTION

BY DATE

PUBLIC WORKS DIRECTOR

APPROVAL EXPIRES 1 YEAR FROM ABOVE DATE

15.00

15.00 PROPOSED MINOR

CONTOUR LINE

FG=170.68

FG=170.46

FG=172.20

FG=173.18

FG=172.83FG=172.52

FG=172.23

FG=171.85

FG=171.32

FG=171.46

FG=171.30

FG=171.10

FG=171.03

FG=171.54

FG=172.35

FG=172.87

FG=172.92

FG=176.00

FG=173.18

FG=170.38

FG=170.22

FG=170.68

FG=171.61

R15.0

CONNECT TO EX SURFACE

AND MATCH WIDTH

MATCH INTO EX REAR

OFFICE ENTRANCE

GRIND EX HMA SPEED CUSHION FLUSH

WITH SURROUNDING ASPHALT SURFACE

30.00

REPLACE 3.5'' HIGH BY 12' WIDE HMA

SPEED CUSHION AS SHOWN. SEE DETAIL

2-25 ON SHEET C2.2

R5.00 (TYP)

R10.00

R45.00

CENTER POINT

N: 504889.8119 E: 1023364.7324

NOTES TO CONTRACTOR:

1. PROJECT INTENT IS TO MAINTAIN EX GRADE THROUGH PROJECT

SITE AND SHEET FLOW RUNOFF TO FRENCH DRAIN NEAR BLUE

PAVILION. ONLY MINOR GRADING IS EXPECTED TO ACHIEVE

SURFACE ELEVATIONS SHOWN. GRADING ACTIVITIES SHALL

REMOVE ENOUGH MATERIAL SO STRUCTURAL SECTION SHOWN

ON SHEET C2.1 CAN BE PLACED. AFTER EARTH REMOVAL,

NATIVE SUBGRADE SHALL BE COMPACTED. CSBC AND CSTC

ROCK STRUCTURAL SECTION SHALL BE PLACED, GRADED AS

SHOWN, AND COMPACTED TO 95% PROCTOR. COMPACTION

REPORTS SHALL BE PROVIDED TO LEWIS COUNTY OR PROJECT

INSPECTOR PRIOR TO HMA PLACEMENT. ONCE COMPACTION IS

VERIFIED HMA PLACEMENT MAY COMMENCE.

File details come from the government source that posted it. Updated Jul 13, 2026.