Plan Sheets.pdf

PORTLAND

TROUTDALE

GRESHAM

HAPPY

VALLEY

US-84

US-26

I-2

I-5

HILLSBORO

OR-99E

MILWAUKIE

US-26

LAKE

OSWEGO

I-205

BEAVERTON

TIGARD

US-30

I-4

I-5

O R -2

O R- W

WEST LINN

PORTLAND METRO

CLACKAMAS COUNTY

MULTNOMAH COUNTY

W

AS

H

IN

G

TO

N C

O U

N

TY

N

C I T Y

O F F

C I A

I

L S

I C I N I T Y

M A P

V

CITY OF WEST LINN

2026 SEWER PUMP STATION IMPROVEMENTS PROJECTS

CITY ENGINEER: ERICH LAIS, PE

PHONE: 503-722-3434

EMAIL: ELAIS@WESTLINNOREGON.GOV

ENVIRONMENTAL SERVICES: JOE CONRAD

PHONE: 503-742-6072

EMAIL: JOSEPH.CONRAD@WESTLINNOREGON.GOV

DWG SHEET TITLE

G0.0 1 COVER

C1.1 2 DEMOLITION PLAN - MARYLHURST PUMP STATION

C1.2 3 DEMOLITION PLAN - CEDAROAK PUMP STATION

C2.1 4 SITE PLAN - MARYLHURST PUMP STATION

C2.2 5 SITE PLAN - CEDAROAK PUMP STATION

C3.1 6 CIVIL DETAILS

E0.0 7 ELECTRICAL- SYMBOLS AND LEGEND SHEET

E1.1 8 ELECTRICAL SITE PLAN- MARYLHURST PUMP STATION

E1.2 9 ELECTRICAL SITE PLAN - CEDAROAK PUMP STATION

E2.1 10 SINGLE LINE DIAGRAM - MARYLHURST PUMP STATION

E2.2 11 SINGLE LINE DIAGRAM - CEDAROAK PUMP STATION

E3.1 12 WIRING DIAGRAM

E4.1 13 ELECTRICAL SCHEDULES

E5.1 14 ELECTRICAL DETAILS

E5.2 15 ELECTRICAL DETAILS

S H E E T I N D E X

PROJECT VICINITY

N

MARYLHURST PUMP STATION

CEDAROAK PUMP STATION

PROJECT NO: SCALE:

CHECKED BY:

DRAWN BY:

DESIGNED BY:

Y:

\P ro je ct s\

W es t L in n, C ity o f\0

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P um p St at io n Im pr ov em en ts \C

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CENTURY WEST ENGINEERING CORPORATION

REUSE OF DOCUMENTS

CENTURY WEST ENGINEERING CORPORATION.

PROJECT WITHOUT THE WRITTEN CONSENT OF

USED, IN WHOLE OR IN PART, FOR ANY OTHER

ENGINEERING CORPORATION, AND IS NOT TO BE

SERVICE, IS THE PROPERTY OF CENTURY WEST

HEREIN, AS AN INSTRUMENT OF PROFESSIONAL

THIS DRAWING, AND THE DESIGNS INCORPORATED

OFSCALES ACCORDINGLY.

THIS SHEET, ADJUST

IF NOT ONE INCH ON

0" 1"

ORIGINAL DRAWING.

BAR IS ONE INCH ON

VERIFY SCALES

APPRBYNO. DATE REVISIONS

SHEET NO.

DRAWING NO.

DATE:

PORTLAND OFFICE

5500 MEADOWS ROAD, SUITE #250

LAKE OSWEGO, OR 97035

503.419.2130

503.639.2710 FAX

41469.005.01APRIL 2026

SEWER PUMP STATION IMPROVEMENTS PROJECT

CITY OF WEST LINN

R

DGR

NS

JAJ

G0.0

COVER

AS NOTED

DIGITALLY SIGNED

12/ 31/ 2026 2026-04-14 jlumpkin Line jlumpkin Line jlumpkin Line jlumpkin Line

22'

REMOVE EXISTING 4'' DI 90 ELBOW

REMOVE EXISTING 4'' DI SPOOL REMOVE 4'' DI PLUG VALVE

REMOVE EXISTING 4'' DI WYE

REMOVE EXISTING 4'' SUBMERSIBLE PUMP

N

SCALE 1" =

2' 4'

2'

EXISTING PUMP CONTROLLER

SEE ELECTRICAL FOR DEMOLITION

EXISTING CATCH BASIN

PRESERVE

PROTECT EXISTING BOLLARD

PRESERVE AND PROTECT

EXISTING BOLLARD

ELECTRICAL HANDHOLE

SEE ELECTRICAL FOR DEMOLITION

PRESERVE AND PROTECT

EXISTING 8'' GRAVITY SEWER

EXISTING 8'' AC GRAVITY SEWER

REMOVE EXISTING 4'' DI SPOOL

REMOVE EXISTING 4'' DI SWEEPING ELBOW

REMOVE EXISTING PUMP MOUNT

REMOVE EXISTING GUIDE RAIL SYSTEM

AND MOUNTING BRACKET

REMOVE EXISTING BRACE

REMOVE EXISTING GUIDE RAIL BRACE

REMOVE EXISTING 4''

DI SPOOL

REMOVE EXISTING 4'' DI

45 ELBOW

REMOVE EXISTING 4'' DI SPOOL

REMOVE EXISTING 4'' DI PLUG

VALVE

REMOVE EXISTING

4'' DI PLUG VALVE

REMOVE EXISTING

4'' DI SPOOL

REMOVE EXISTING 4'' DI SPOOL

REMOVE EXISTING 4''

DI WYE

CUT EXISTING 4'' AC

FORCEMAIN

REMOVE EXISTING SUBMERSIBLE PUMP

REMOVE EXISTING 4'' CHECK VALVE

REMOVE EXISTING 4'' CHECK VALVE

CONDUIT FROM HANDHOLE

TO REMAIN

PRESERVE

AND PROTECT

EXISTING 8'' AC

GRAVITY SEWER

EXISTING 7' DIA WETWELL

REMOVE ACCESS HATCH

REMOVE ACCESS HATCH

REMOVE EXISTING WET WELL TOP SLABRIM ELEV = 629.9 ±

ASSUMED BOTTOM ELEV = 617.2 ±

EXISTING 4'' AC FORCEMAIN

FIELD VERIFY FITTINGS

SAWCUT PAVEMENT

PAVEMENT REMOVAL LIMITS

PRESSURE WASH AND VACUUM

WETWELL

I.E. 625.6 +/-

GENERAL NOTES

THE SCOPE OF THE PROJECT GENERALLY INCLUDES:

1. CONTRACTOR TO INSTALL BYPASS SYSTEM TO

ENSURE OPERATION OF UPSTREAM AND

DOWNSTREAM MANHOLES CONTINUE DURING

CONSTRUCTION.

2. CONTRACTOR TO DE-WATER WETWELL DURING

CONSTRUCTION.

3. CONTRACTOR TO INSTALL INFLATABLE BAG PLUG IN

EACH INLET FOR EXISTING PUMP STATION

REMOVE EXISTING 8'' GRAVITY SEWER

INSTALL PIPE BAG PLUG

PRIOR TO CONSTRUCTION

INSTALL BAG PLUG

PRIOR TO CONSTRUCTION

I.E. 625.6 +/-

FIELD VERIFY FITTINGS

2.

8'

3.8'

CUT4 '' AC FORCEMAIN, CLEAN AND PREPARE FOR COUPLER

PROJECT NO: SCALE:

CHECKED BY:

DRAWN BY:

DESIGNED BY:

Y:

\P ro je ct s\

W es t L in n, C ity o f\0

Se w er

P um p St at io n Im pr ov em en ts \C

AD

W O

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\S he et s\

C -0

EX

IS

TI

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S

IT

E.

dw g

CENTURY WEST ENGINEERING CORPORATION

REUSE OF DOCUMENTS

CENTURY WEST ENGINEERING CORPORATION.

PROJECT WITHOUT THE WRITTEN CONSENT OF

USED, IN WHOLE OR IN PART, FOR ANY OTHER

ENGINEERING CORPORATION, AND IS NOT TO BE

SERVICE, IS THE PROPERTY OF CENTURY WEST

HEREIN, AS AN INSTRUMENT OF PROFESSIONAL

THIS DRAWING, AND THE DESIGNS INCORPORATED

OFSCALES ACCORDINGLY.

THIS SHEET, ADJUST

IF NOT ONE INCH ON

0" 1"

ORIGINAL DRAWING.

BAR IS ONE INCH ON

VERIFY SCALES

APPRBYNO. DATE REVISIONS

SHEET NO.

DRAWING NO.

DATE:

PORTLAND OFFICE

5500 MEADOWS ROAD, SUITE #250

LAKE OSWEGO, OR 97035

503.419.2130

503.639.2710 FAX

41469.005.01APRIL 2026

SEWER PUMP STATION IMPROVEMENTS PROJECT

CITY OF WEST LINN

R

DGR

NS

JAJ

C1.1

DEMOLITION PLAN

MARYLHURST PUMP STATIONAS NOTED

REMOVE PORTION OF 4'' AC FORCEMAIN

LENGTH AS NECESSARY FOR VALVE ASSEMBLY AND COUPLER

MARYLHURST

CIRCLE

REMOVE EXISTING WETWELL

PENETRATION GROUT AND PREP FOR NEW PIPE

CUT 8'' AC PIPE GRAVITY SEWER, CLEAN, AND PREPARE FOR COUPLER

REMOVE EXISTING 8'' AC GRAVITY SEWER

INSTALL BAG PLUG FOLLOWING PIPE CUT

2.

0'

DIGITALLY SIGNED

12/ 31/ 2026 2026-04-14

N

SCALE 1" =

2' 4'

2'

INSTALL 3.0 ' X 5.0' DOUBLE PANE ACCESS

HATCH WITH FALL PROTECTION GRATES

4'' DI PLUG VALVE

4'' PLUG VALVE

4'' DI CHECK VALVE

4'' DI CHECK VALVE

4'' DI PIPE

FL X PE

NEW SUBMERSIBLE PUMP #1

NEW SUBMERSIBLE PUMP #2

INSTALL NEW WETWELL TOP SLAB

MATCH EXISTING GRADE

PROJECT NO: SCALE:

CHECKED BY:

DRAWN BY:

DESIGNED BY:

Y:

\P ro je ct s\

W es t L in n, C ity o f\0

Se w er

P um p St at io n Im pr ov em en ts \C

AD

W O

R

KI

N G

\S he et s\

C 2.

Pr op os ed .d w g

CENTURY WEST ENGINEERING CORPORATION

REUSE OF DOCUMENTS

CENTURY WEST ENGINEERING CORPORATION.

PROJECT WITHOUT THE WRITTEN CONSENT OF

USED, IN WHOLE OR IN PART, FOR ANY OTHER

ENGINEERING CORPORATION, AND IS NOT TO BE

SERVICE, IS THE PROPERTY OF CENTURY WEST

HEREIN, AS AN INSTRUMENT OF PROFESSIONAL

THIS DRAWING, AND THE DESIGNS INCORPORATED

OFSCALES ACCORDINGLY.

THIS SHEET, ADJUST

IF NOT ONE INCH ON

0" 1"

ORIGINAL DRAWING.

BAR IS ONE INCH ON

VERIFY SCALES

APPRBYNO. DATE REVISIONS

SHEET NO.

DRAWING NO.

DATE:

PORTLAND OFFICE

5500 MEADOWS ROAD, SUITE #250

LAKE OSWEGO, OR 97035

503.419.2130

503.639.2710 FAX

41469.005.01APRIL 2026

SEWER PUMP STATION IMPROVEMENTS PROJECT

CITY OF WEST LINN

R

DGR

NS

JAJ

C2.1

SITE PLAN

MARYLHURST PUMP STATIONAS NOTED

CONNECT TO EXISTING

4'' AC FORCEMAIN

6.

0'

5.0'

5.0' 6.

2'

INSTALL 4'' DI 90 ELBOW

FL X FL

INSTALL 4'' DI PIPE

PE X FL

LENGTH AS NEEDED

INSTALL 4'' DUCTILE SPOOL

LENGTH AS NEEDED

INSTALL 4'' MACRO HP WIDE RANGE COUPLING

CONNECTION TO EXISTING 4'' AC FORCEMAIN

INSTALL 4'' DI EXTERNAL SWING

CHECK VALVE

INSTALL 4'' PLUG VALVE

FL X FL

INSTALL 4'' DI CROSS

FL X FL

INSTALL 4'' PLUG VALVE

FL X FL

INSTALL FL X PE SPOOL

LENGTH AS NEEDED

INSTALL FLANGED COUPLING ADAPTER

INSTALL 4'' FL X PE SPOOL

LENGTH AS NEEDED

INSTALL STAINLESS STEEL PUMP GUIDE

RAIL SYSTEM AND MOUNTING BRACKET

INSTALL SUBMERSIBLE PUMP

INSTALL DISCHARGE BASE ELBOW ASSEMBLY

WITH AUTOMATIC PUMP MOUNT FLANGE

INSTALL GUIDE RAIL BRACING

INSTALL SUBMERSIBLE PUMP #1

INSTALL SUBMERSIBLE PUMP #2

INSTALL NEW TOP SLAB

MATCH EXISTING RIM ELEV

MATCH EXISTING PAVEMENT

INSTALL NEW 6.0' X 5.0' X 5.0' VALVE VAULT

INSTALL LATERAL AND LONGITUDINAL

SEISMIC BRACING

INSTALL BRACE

CONNECT TO WETWELL WALL

WITH WEDGE ANCHOR

INSTALL NEW 3'.0' X 5.0' ACCESS HATCH

WITH FALL PROTECTION GRATES

INSTALL NEW 3.0' X 5.0' ACCESS HATCH

WITH FALL PROTECTION GRATES

INSTALL 12'' OF GRANULAR BACKFILL

BELOW VAULT

MARYLHURST

CIRCLE

INSTALL FLOAT RACK

SEE ELECTRICAL DETAILS

C3.1

DOG HOUSE PIPE PENETRATION

TYPICAL BOTH SIDES FOR 8'' GRAVITY SEWER

CAST IN PLACE VAULT FLOOR

SLOPE TO DRAIN

2'' DI DRAIN PIPE 2% SLOPE MIN

DRAIN TO WETWELL

PIPE SADDLE SUPPORT

(TYP OF 2)

C3.1

VAULT ACCESS LADDER

C3.1

CAST IN PLACE 2'' FLOOR DRAIN

VAULT ACCESS LADDER

C3.1

INSTALL LATERAL AND LONGITUDINAL

SEISMIC BRACING

C3.1

GROUT PIPE PENETRATION

(TYP OF 3)

APPLY COATING TO ALL PIPES IN ACCORDANCE

WITH SPECIFICATION 099000 COATING SYSTEM 10

2" FLAP VALVE

INSTALL 4" DI ELBOW

FL X FL

INSTALL 4" DI ELBOW

FL X FL, TURNED UP

INSTALL 4'' DI EXTERNAL SWING

CHECK VALVE

INSTALL 4'' PLUG VALVE

FL X FL

4" SS CAMLOCK FLANGE

ADAPTER W/DUST CAP

INSTALL 4" ROMAC STYLE

FLEXIBLE COUPLING

INSTALL 4" ROMAC STYLE

FLEXIBLE COUPLING

4'' DI PIPE

FL X PE

4" FLEXIBLE COUPLING

APPLY COATING TO INLET BAFFLES IN

ACCORDANCE WITH SPECIFICATION

099000 COATING SYSTEM 10

C3.1

INSTALL LATERAL SEISMIC BRACING

8'' FLEXIBLE COUPLING

8'' C900 DR18 PVC PIPE

CONNECT TO EXISTING 8'' GRAVITY SEWER

INSTALL 8'' ROMAC STYLE

FLEXIBLE COUPLING

INSTALL 8'' MACRO HP WIDE RANGE COUPLING

CONNECTION TO EXISTING 8'' AC GRAVITY SEWER

APPLY COATING TO WET WELL

INTERIOR IN ACCORDANCE WITH

SPECIFICATION 099000

COATING SYSTEM 70

4'' DI PIPE

FL X PE

INSTALL 8'' ROMAC STYLE FLEXIBLE COUPLING

APPLY COATING TO VALVE VAULT EXTERIOR IN ACCORDANCE WITH SPECIFICATION

099000 COATING SYSTEM 75

2.

0'

DIGITALLY SIGNED

PROJECT NO: SCALE:

CHECKED BY:

DRAWN BY:

DESIGNED BY:

Y:

\P ro je ct s\

W es t L in n, C ity o f\0

Se w er

P um p St at io n Im pr ov em en ts \C

AD

W O

R

KI

N G

\S he et s\

G -0

(C ov er

).d w g

CENTURY WEST ENGINEERING CORPORATION

REUSE OF DOCUMENTS

CENTURY WEST ENGINEERING CORPORATION.

PROJECT WITHOUT THE WRITTEN CONSENT OF

USED, IN WHOLE OR IN PART, FOR ANY OTHER

ENGINEERING CORPORATION, AND IS NOT TO BE

SERVICE, IS THE PROPERTY OF CENTURY WEST

HEREIN, AS AN INSTRUMENT OF PROFESSIONAL

THIS DRAWING, AND THE DESIGNS INCORPORATED

OFSCALES ACCORDINGLY.

THIS SHEET, ADJUST

IF NOT ONE INCH ON

0" 1"

ORIGINAL DRAWING.

BAR IS ONE INCH ON

VERIFY SCALES

APPRBYNO. DATE REVISIONS

SHEET NO.

DRAWING NO.

DATE:

PORTLAND OFFICE

5500 MEADOWS ROAD, SUITE #250

LAKE OSWEGO, OR 97035

503.419.2130

503.639.2710 FAX

41469.005.01APRIL 2026

SEWER PUMP STATION IMPROVEMENTS PROJECT

CITY OF WEST LINN

R

DGR

NS

JAJ

C3.1

CIVIL DETAILS

AS NOTED

C2.1,2

PIPE SADDLE SUPPORT DETAIL - TYPICAL

NTS

C2.1,2

SEISMIC LOAD SUPPORT DETAIL - TYPICAL

NTS

C2.1,2

PREFABRICATED VAULT ACCESS LADDER - TYPICAL

NTS

NOTE:

1. ALL MATERIALS 316 STAINLESS STEEL CONSTRUCTION

LATERAL SWAY BRACE

TOP VIEW

EXISTING WETWELL WALL

CONCRETE WEDGE ANCHOR

SWAY BRACE

ATTACHMENT

BRACE ROD UNIVERSAL SWIVEL

SWAY BRACE ATTACHMENT

UNIVERSAL SWIVEL SWAY

BRACE ATTACHMENT

SWAY BRACE

ATTACHMENT

BRACE ROD

UNIVERSAL SWIVEL SWAY

BRACE ATTACHMENT

LONGITUDINAL SWAY BRACE

SIDE VIEW

CONCRETE WEDGE ANCHOR

UNIVERSAL SWIVEL SWAY

BRACE ATTACHMENT

BASE PLATE DETAIL

WELDED BASEPLATE

THREADED ADJUSTABLE

SADDLE

2" SCHEDULE 40 EXTENSION

PIPE, LENGTH AS NEEDED

2" CONCRETE WEDGE ANCHORS (X4)

NOTES:

1) ALL LADDER MATERIALS ARE TO BE 316

STAINLESS STEEL.

EXTENSION SLEEVES

STANDARD LENGTH = 24"

DIGITALLY SIGNED

4.14.26 41469.005.01 DRAWINGS (ELEC)