2025_55140_Exhibit_A_PlanSet_Part8.pdf

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Attached to
2025-55140 Tolmie Lift Station Improvements
Solicitation number
2025-55140
Issued by
Adams County, Asotin County, Benton County, Chelan County, Clallam County, Clark County, Columbia County, Cowlitz County, Douglas County, Ferry County, Franklin County, Garfield County, Grant County, Grays Harbor County, Island County, Jefferson County, King County, Kitsap County, Kittitas County, Klickitat County, Lewis County, Lincoln County, Mason County, Okanogan County, Pacific County, Pend Oreille County, Pierce County, San Juan County, Skagit County, Skamania County, Snohomish County, Spokane County, Stevens County, Thurston County, Wahkiakum County, Walla Walla County, Whatcom County, Whitman County, Yakima County, Asotin City, Clarkston City, Clarkston Heights-Vineland CDP, West Clarkston-Highland CDP, Benton City, Chelan City, Chelan Falls CDP, Clallam Bay CDP, Lewisville CDP, Rock Island City, Pacific Beach CDP, Whidbey Island Station CDP, Mercer Island City, Pacific City, Bainbridge Island City, Kingston CDP, Kitsap Lake CDP, Kittitas City, Klickitat CDP, Okanogan City, Anderson Island CDP, Fort Lewis CDP, Fox Island CDP, Herron Island CDP, Ketron Island CDP, North Fort Lewis CDP, Raft Island CDP, Stevenson City, Hat Island CDP, Lake Stevens City, Snohomish City, Spokane City, Spokane Valley City, Puget Island CDP, Garfield Town, Yakima City, Washington

About this file

The document is a civil engineering site plan and construction details set for the Tolmie State Park Wastewater Lift Station Retrofit project, prepared by the Washington State Parks and Recreation Commission (WSPRC) for Thurston County. The plan set specifically focuses on solenoid site plans and civil construction details for a wastewater lift station improvement project, with the engineering drawings marked as a 100% design plan set for review. The project involves relocating and removing existing solenoids at upper and lower sites within Tolmie State Park, including installation of new solenoid valves in mechanical rooms, restoration of water main conditions, and comprehensive site infrastructure modifications.

The engineering documents provide detailed technical specifications for trench work, pipe installations, utility crossings, and construction methodologies, with specific emphasis on site safety, utility protection, and environmental considerations. Notable technical requirements include mechanical compaction of backfill materials to 95% modified Proctor density, minimum trench and pipe zone dimensions, thrust block calculations for pipe fittings, and explicit instructions for utility locates, groundwater management, and daily site cleanup. The plans indicate a comprehensive approach to infrastructure retrofit that prioritizes precise engineering standards, utility preservation, and minimal environmental disruption during construction.

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Text version

PROPOSED SEWER LINE

LEGEND

UGS

UGSP

PL PL

OHPP EXISTING OVERHEAD PRIMARY POWER

UGPP EXISTING UNDERGROUND PRIMARY POWER

➤ ➤ EXISTING DRAINAGE SWALE

TEL EXISTING OVERHEAD TELEPHONE LINE

W W

SIG

EXISTING WATER LINE

EXISTING UNDERGROUND SIGNAL WIRE

UPT UPT EXISTING UNDERGROUND TELEPHONE LINE

SS SS

UGSP EXISTING UNDERGROUND SECONDARY POWER

EXISTING SANITARY SEWER GRAVITY MAIN

EXISTING BRUSH LINE

EXISTING EDGE OF ASPHALT

EXISTING TRAIL NETWORK

PROPOSED UNDERGROUND SIGNAL WIRE

PROPOSED UNDERGROUND SECONDARY POWER LINE

EXISTING PROPERTY LINE

SFM EXISTING SANITARY SEWER FORCE MAIN

UPPER

SEPTIC TANK

INSTALL NEW SOLENOID VALVE

INSIDE MECHANICAL ROOM.

SEE NOTES, THIS SHEET.

MECHANICAL

ROOM

UPPER RESTROOM

FACILITY

BUILDING CORNER

NORTHING: 659594.58

EASTING: 1074157.77

BUILDING CORNER

NORTHING: 659595.15

EASTING: 1074127.77

LOWER

SEPTIC TANK

INSTALL NEW SOLENOID VALVE

INSIDE MECHANICAL ROOM.

SEE NOTES, THIS SHEET.

MECHANICAL

ROOM

LOWER RESTROOM

FACILITY

BUILDING CORNER

NORTHING: 659889.83

EASTING: 1073630.25

BUILDING CORNER

NORTHING: 659869.12

EASTING: 1073646.47

EXTG HAND HOLE

TO REMAIN IN-PLACE

POWER POLE

REMOVE EXTG SOLENOID

AND SALVAGE TO OWNER

EXTG WATER MAIN SOLENOID

NORTHING: 659626.55

EASTING: 1073848.12

EXTG HAND HOLE

TO REMAIN IN-PLACE

WATER RESERVOIR

REMOVE EXTG SOLENOID

AND SALVAGE TO OWNER

WELL PUMP HOUSE

ENTRANCE

KIOSK

N/E

EXTG WATER MAIN SOLENOID

NORTHING: 659306.17

EASTING: 1074180.34

10'

20'

SOLENOID

SITE PLAN

C-11

LOWER SITE SOLENOID RELOCATION PLAN

PARKS FILE#

SCALE

PARKS

STATE

RECREATION

WASHINGTON

COMMISSION

AND

R E V I S I O

N S

CHECKED (HDQTS.)

REGISTERED STAMP

DESIGNED

CHECKED (FIELD)

DRAWN

ACTION BY

DATE

N O

CAD NO.

A P P

I N

T

D A T E

04/21/23JP/CS

04/21/23PCB

TOLMIE

STATE PARK

WASTEWATER

LIFT STATION

RETROFIT

AE 123-168

THURSTON COUNTY

SEC. 23, T.29N., R.1W., W.M.

100% DESIGN PLAN SET (REVIEW ONLY)

SHEET OF 24

PRELIMINARY

40525-070_C-10_SITE PLAN

LOWER SITE SOLENOID REMOVAL PLAN

TOLMIE STATE PARK OVERVIEW

NOT TO SCALE

UPPER SITE SOLENOID RELOCATION PLAN

UPPER SITE SOLENOID REMOVAL PLAN

GENERAL SOLENOID NOTES:

1. AFTER SOLENOID REMOVAL, INSTALL PVC PIPE AND FITTINGS AS NECESSARY TO RESTORE

WATER MAIN TO WATER-TIGHT CONDITION.

2. INSTALL NEW SOLENOIDS ABOVE GRADE.

3. SEE ELECTRICAL PLANS FOR WIRING INFORMATION.

4. NORTHING AND EASTING BENCHMARKS ARE RELATIVE TO DRAWING BASE MAP AND FOR

LOCAL LOCATION OF THE SOLENOIDS.

5. SEE NOTES SHEET FOR ADDITIONAL INFORMATION.

PARKS FILE#

SCALE

PARKS

STATE

RECREATION

WASHINGTON

COMMISSION

AND

R E V I S I O

N S

CHECKED (HDQTS.)

REGISTERED STAMP

DESIGNED

CHECKED (FIELD)

DRAWN

ACTION BY

DATE

N O

CAD NO.

A P P

I N

T

D A T E

04/21/23JP/CS

04/21/23PCB

TOLMIE

STATE PARK

WASTEWATER

LIFT STATION

RETROFIT

AE 123-168

PRELIMINARY

100% DESIGN PLAN SET (REVIEW ONLY)

SHEET OF 24

PRELIMINARY

CIVIL DETAILS AND

NOTES

C-20

40525-071_C-20_CIVIL

DETAILS AND NOTES

NATIVE SOIL CONDITIONS UNKNOWN,

CONTRACTOR SHALL BE RESPONSIBLE FOR

TRENCH STABILITY AND SAFETY.

BACKFILL AND MECHANICALLY COMPACT (6"

LIFTS) IMPORTED SELECT BACKFILL TO 95%

OF THE MODIFIED PROCTOR.

SANITARY SEWER

MAIN

EXCAVATE UNSUITABLE MATERIAL AND

PROVIDE FOUNDATION MATERIAL CLASS A

CONFORMING TO WSDOT SS 9-03.17

COMPACTED TO A UNIFORMLY DENSE AND

UNYIELDING FOUNDATION, WHEN UNSUITABLE

MATERIAL IS ENCOUNTERED AND AS DIRECTED

BY THE ENGINEER

VARIES,

MIN. 24"

DEPTH

PIPE OD + 24"

TRENCH LIMITS

PIPE OD + 16"

PIPE OD + 24"

MINIMUM AND MAXIMUM

WIDTH AT PIPE ZONE

12" MAX.

18"

TRACER / LOCATOR TAPE

PIPE ZONE BEDDING AND BACKFILL

PER DETAIL. SEE SHEET M-10

PROVIDE 6" OF CSTC

COMPACTED TO FIRM

AND UNYIELDING

CONDITIONS.

SURFACE FINISH PER

PLAN

18"18"

12"

KEY CDF TRENCH DAM

INTO 12" OF NATIVE

CDF TRENCH DAM

NO SCALE

1. CALL 1-800-424-5555 FOR UTILITY LOCATES 48 HOURS BEFORE CONSTRUCTION.

2. MINIMUM 12" VERTICAL CLEARANCE REQUIRED BETWEEN TOP OF SANIATER

SEWER MAIN AND THE BOTTOM OF CONDUITS CONVEYING POWER, SIGNAL,

AND/OR TELECOMMUNICATION LINES.

3. CHANGES SHALL BE SUBMITTED IN WRITING TO THE ENGINEER FOR APPROVAL

PRIOR TO IMPLEMENTATION OR CONSTRUCTION.

4. KEEP A COPY OF THE APPROVED PLANS AND ALL PROJECT PERMITS ON-SITE

WHENEVER CONSTRUCTION IS IN PROGRESS.

5. TAKE ALL NECESSARY PRECAUTIONS TO PROTECT THE PUBLIC AND PREVENT

NUISANCES. CONTRACTOR SHALL PROVIDE TEMPORARY BRACING FOR THE

STRUCTURE AND STRUCTURAL COMPONENTS UNTIL ALL FINAL CONNECTIONS

HAVE BEEN COMPLETED IN ACCORDANCE WITH THE PLANS. SEE DEMOLITION

NOTES, SHEET G-03

6. PREPARE COMPLETE AS-BUILT RECORDS.

7. PROVIDE ALL CONSTRUCTION STAKING ON THIS PROJECT INCLUDING THE

PREPARATION OF COMPLETE CONSTRUCTION RECORDS. STAKING FOR GRADES

AND ALIGNMENT SHALL BE PERFORMED BY AN ENGINEERING OR SURVEYING FIRM

LICENSED AND CAPABLE OF PERFORMING SUCH WORK. RIGHT OF WAY AND

EASEMENT LIMITS MUST BE CLEARLY IDENTIFIED IN THE FIELD DURING

CONSTRUCTION.

8. A PRECONSTRUCTION CONFERENCE AND 24-HOUR NOTICE WILL BE REQUIRED

PRIOR TO STARTING CONSTRUCTION OR RESTARTING CONSTRUCTION AFTER A

PERIOD OF MORE THAN 5 DAYS OF NO WORK BEING PERFORMED. SEE NOTES ON

SHEET G-03 TO G-07 FOR ADDITIONAL REQUIRED CONFERENCE MEETINGS.

9. RESTORE ALL AREAS DISTURBED BY CONSTRUCTION TO CONDITIONS EQUAL OR

BETTER TO THOSE FOUND PRIOR TO CONSTRUCTION. CONTRACTOR SHALL

HYDROSEED ALL EXISTING GRASS AREAS THAT ARE DISTURBED BY HIS

ACTIVITIES.

10. DETERMINE THE SCOPE, TYPE, SIZE, QUANTITY, METHOD OF INSTALLATION,

OPERATION, AND REMOVAL OF THE DEWATERING SYSTEM NECESSARY TO KEEP

THE EXCAVATION SITE DEWATERED TO STABILIZE THE SOILS FOR

CONSTRUCTION, IF GROUNDWATER IS PRESENT DURING EXCAVATION AND

CONSTRUCTION.

11. DISCHARGE WATER FROM THE DEWATERING SYSTEM IN ACCORDANCE WITH THE

REQUIREMENTS OF STATE AND LOCAL REGULATIONS AND THE REQUIREMENTS OF

THESE PLANS AND NOTES. AT NO TIME SHALL SILT LADEN WATER BE

DISCHARGED OFF SITE. SEE ANY APPLICABLE PERMITS AND SPECIAL PROVISIONS

REGARDING PERMISSIBLE DISCHARGE LOCATIONS FOR FILTERED STORM WATER.

IF NO PERMIT, AND SILT LADEN WATER SHALL BE HAULED OFF-SITE AND

DISPOSED OF IN ACCORDANCE WITH APPLICABLE LAWS AND REGULATIONS.

12. THOSE PERFORMING THIS WORK SHALL CLEANUP ALL AREAS AFFECTED BY THEIR

ACTIVITIES TO THE SATISFACTION OF THE WASHINGTON STATE PARKS AND

RECREATION (WSPRC) DEPARTMENT BY THE END OF EACH WORKING DAY OR

MORE FREQUENTLY IF REQUIRED BY THE WSPRC REPRESENTATIVE. THIS

INCLUDES REMOVAL OF ALL DUST, MUD, ROCKS, ASPHALT DEBRIS, AND REFUSE

FROM PARKING LOTS, STREETS, SIDEWALKS, DRIVEWAYS, AND ANY OTHER

AREAS AFFECTED BY THE CONSTRUCTION ACTIVITIES. FAILURE TO CLEANUP TO

THE SATISFACTION OF THE OWNER'S REPRESENTATIVE WILL NECESSITATE A

SHUTDOWN OF THE PROJECT UNTIL CLEANUP IS PROPERLY PERFORMED. DAILY

CLEANUP IS AN INTEGRAL PART OF EROSION AND POLLUTION CONTROL.

13. ALL EXISTING UTILITIES INDICATED ON THE DRAWINGS HAVE BEEN PLOTTED

FROM THE BEST INFORMATION AVAILABLE TO THE ENGINEER AND SHOULD

THEREFORE BE CONSIDERED APPROXIMATE ONLY AND NOT NECESSARILY

COMPLETE. THE SOURCE OF INFORMATION GENERALLY CONSISTS OF

CONSTRUCTION RECORDS AND OTHER DATA OBTAINED VERBALLY FROM

OFFICIALS ASSOCIATED WITH THE PARTICULAR UTILITY. OWNER AND ENGINEER

DO NOT GUARANTEE AND DO NOT ASSUME ANY RESPONSIBILITY FOR THE

ACCURACY OF THIS INFORMATION. IT IS UNDERSTOOD THAT OTHER ABOVE

GROUND AND UNDERGROUND FACILITIES NOT SHOWN ON THE DRAWINGS MAY

BE ENCOUNTERED DURING THE COURSE OF THE WORK. IT IS THE SOLE

RESPONSIBILITY OF THOSE PERFORMING THIS WORK TO INDEPENDENTLY VERIFY

THE ACCURACY OF ALL UTILITY LOCATIONS SHOWN TO AVOID DAMAGE AND/OR

DISTURBANCE TO SUCH UTILITIES, AND TO FURTHER DISCOVER AND AVOID ANY

OTHER UTILITIES NOT SHOWN HEREON WHICH MAY BE AFFECTED BY THE

IMPLEMENTATION OF THIS PLAN. WORKERS SHALL PRESERVE, PROTECT AND

SUPPORT ALL EXISTING UTILITIES ENCOUNTERED DURING CONSTRUCTION.

14. ALL UTILITIES SHALL BE LOCATED BY THE APPROPRIATE UTILITY LOCATING

PROFESSIONALS, PRIOR TO AND DURING CONSTRUCTION. IMMEDIATELY NOTIFY

THE ENGINEER AND THE UTILITY COMPANY WHEN A CONFLICT OCCURS.

15. COORDINATE WITH THE MAINTENANCE STAFF AT TOLMIE STATE PARK

REGARDING MAINTENANCE AND ACCESS TO THE FACILITIES.

GENERAL CONSTRUCTION NOTES

SEWER TRENCH DETAIL

NOT TO SCALE

PIPE LENGTH MEASUREMENTS

FLANGE x FLANGE (FLxFL) PIPE

MEASURED FROM FACE OF

FLANGE TO FACE OF FLANGE.

FLANGE x PLAIN END (FLxPE) PIPE

MEASURED FROM FACE OF FLANGE

TO CENTER OF FITTING.

PLAIN END x PLAIN END (PExPE) PIPE

MEASURED FROM CENTER OF FITTING

TO CENTER OF FITTING.

RESTRAINED JOINT x RESTRAINED

JOINT (RJxRJ) PIPE

MEASURED FROM CENTER OF

FITTING TO CENTER OF FITTING.

PIPE LENGTH

PIPE LENGTH

PIPE LENGTH

PIPE LENGTH

PIPE LENGTHS CALLED OUT ON PLANS ARE MEASURED AS FOLLOWS:

FITTINGS ARE ASSUMED TO BE STANDARD LENGTH

125#, 250# FLANGED OR COMPACT CLASS 350

MECHANICAL JOINTS. CONTRACTOR RESPONSIBLE

FOR VERIFYING LENGTHS. IT IS THE

CONTRACTOR'S RESPONSIBILITY TO TAKE INTO

ACCOUNT ANY VARIATIONS IN FITTING

DIMENSIONS.

ABBREVIATIONS KEY

EXTG = EXISTING

TYP = TYPICAL

LF = LINEAR FOOT

NOM = NOMINAL

PE = PLAIN END

FL = FLANGE

MJ = MECHANICAL JOINT

RJ = RESTRAINED JOINT

NPT = NATIONAL PIPE TAPERED THREAD

DI = DUCTILE IRON PIPE

PVC = POLYVINYL CHLORIDE PIPE

CSBC = CRUSHED SURFACING BASE

COURSE

CSTC = CRUSHED SURFACING TOP COURSE

CDF = CONTROLLED DENSITY FILL

MIN = MINIMUM

MAX = MAXIMUM

FM = FORCE MAIN

GM = GRAVITY MAIN

SS = SANITARY SEWER LINE

SD = STORM DRAIN SEWER LINE

UG = UNDERGROUND

OH = OVERHEAD

PP = PRIMARY POWER

SP = SECONDARY POWER

℄ = CENTERLINE

∅ = DIAMETER

1.

2.

3.

4.

THRUST AT FITTINGS IN POUNDS

SOIL TYPE

SIZE

4"

6"

8"

10"

12"

14"

16"

3,140

7,070

12,565

19,635

28,275

38,485

50,265

4,440

9,995

17,770

27,770

39,985

54,425

71,085

2,405

5,410

9,620

15,030

21,640

29,455

38,470 19,615

15,015 7,545

9,855

5,54511,030

7,660 3,850

2,4654,905

2,760 1,385

6151,225

EDCBA

TEE AND

DEAD

ENDS

MUCK, PEAT, ETC.

SOFT CLAY

SAND

SAND AND GRAVEL

SAND AND GRAVEL CEMENTED WITH CLAY

HARD SHALE

1,000

2,000

3,000

4,000

10,000

TEST

PRESSURE

(PSI)

SAFE BEARING LOAD

(PSF)

NOTES

11.25

BEND

22.5

BEND

BEND

BEND

Contractor to provide blocking adequate to withstand full test pressure.

Divide thrust by safe bearing load to determine required area (in square feet) of concrete to distribute load.

Areas to be adjusted for other pressure conditions.

Provide two 1" (in) minimum diameter rods on valves up through 10" (in) diameter. Valves larger than 10" (in) require special tie rod design.

1.8

2.3

2.4

3.0

2.9

3.6

3.4

4.2

3.8

108 4.8

4.2

5.3

4.6

5.8

2.8

10"

12"

14"

16"

17"

17"

17"

17"

17"

17"

20"

24"

3.7

250 17"

4.5

5.2

200 5.8

6.5

7.1

24"

1" 27"

30"

THREAD 6"

4"

6"

8"

5/8"

5/8"

5/8"

5/8"

5/8"

7/8"

5/8"

3/4"

5/8"

7/8"

1 1/8"

11.25^

22.5^

45^

11.25^

22.5^

45^

11.25^

22.5^

45^

11.25^

22.5^

45^

11.25^

22.5^

45^

11.25^

22.5^

45^

11.25^

22.5^

45^

FOUR TIE RODS

WITH TURNBUCKLES

THREAD 6"

TWO TIE RODS

WITH TURNBUCKLES

CONCRETE

VOLUME

(Ft )

TEST

PRESSURE

(PSI)

CUBE

SIZE

(Ft)

TEE

OFFSET

DEAD END

BEND

VALVE

PLUGGED TEE

PLUGGED CROSS

PLUGGED CROSS

UNBALANCED CROSS

PLAN VIEW

PLAN VIEW

PLAN VIEW

PLAN VIEW

PLAN VIEW

PROFILE VIEW

PLAN VIEW

(USE COLUMN A )

(USE COLUMN B )

(USE COLUMN A )

(USE COLUMN B )

(USE COLUMN A )

PLAN VIEW

PLAN VIEW

TWO 1" (IN) DIAM. RODS

(SEE NOTE 4)

CONCRETE THRUST BLOCK DETAIL

NOT TO SCALE

HORIZONTAL BENDS

VERTICAL BENDS

Sheets and Views
C-11 SOLENOID SITE PLAN

File details come from the government source that posted it. Updated .