A.03 FIO - Plans Vol II - Informational Drawings MSH SRS.pdf

PDF 37 MB Posted Aug 1, 2025

Attached to: MOUNT SAINT HELENS SEDIMENT RETENTION STRUCTURE CREST RAISE
Solicitation number: W9127N25BA007
Issued by: Department of the Army Corps of Engineers Engineering District Portland

About this file

Written by GovTribe AI · Aug 1, 2025

This file is a set of technical drawings (A.03 FIO - Plans Vol II) for the Mount St. Helens Sediment Retention Structure (SRS) 7 Foot Spillway Raise project, prepared by the U.S. Army Corps of Engineers Portland District. The drawings document the as-constructed conditions of a previous project completed in 2012, with key details including roller compacted concrete (RCC) placement, rock excavation, instrumentation plan, and staging areas. The project is located on the North Fork Toutle River in Cowlitz County, Washington, with contractor LKE Corporation having completed work under contract W9127N-12-C-0016.

The technical drawings provide comprehensive documentation of the project's implementation, featuring multiple sheets (G-001 through C-004) that detail site plans, rock excavation, RCC sections, staging areas, and instrumentation. Specific technical elements include elevation data referenced to NAVD 88, coordinate locations, slope variations, conduit placements, and construction notes. The drawings indicate this was the first of three planned crest raises for the Sediment Retention Structure, which was originally constructed in the late 1980s to store sediment and protect downstream levee systems from Castle Rock to Lexington.

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Other files

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Solicitation Amendment W9127N25BA0070007 SF 30.pdf	PDF	Oct 30, 2025
C.04 Bid Abstract - W9127N25BA007 Signed.pdf	PDF	Oct 22, 2025
Small Business Plan Template.docx	DOCX document	Oct 15, 2025
Amd 0006 Revised Specifications.pdf	PDF	Oct 1, 2025
Solicitation Amendment W9127N25BA0070006 SF 30.pdf	PDF	Oct 1, 2025
Solicitation Amendment W9127N25BA0070001 SF 30 (1).pdf	PDF	Sep 30, 2025
B.04 Davis-Bacon Act WD WA20250123 (09-12-25).pdf	PDF	Sep 16, 2025
Solicitation Amendment W9127N25BA0070005 SF 30.pdf	PDF	Sep 16, 2025
Solicitation Amendment W9127N25BA0070004 SF 30.pdf	PDF	Sep 9, 2025
MSH SRS Secondary Spillway Raise - Revised Cut Fill Report Amendment 0004.xlsx	XLSX spreadsheet	Sep 9, 2025
Solicitation Amendment W9127N25BA0070003 SF 30.pdf	PDF	Sep 3, 2025
Solicitation Amendment W9127N25BA0070002 SF 30.pdf	PDF	Aug 28, 2025
Foundation Prep and Treatment 1991 Fnd Report.pdf	PDF	Aug 25, 2025
B.04 Davis-Bacon Act WD # WA20250123 (08-08-25).pdf	PDF	Aug 25, 2025
SRS Raise Foundation Condition_15Oct2012.pdf	PDF	Aug 25, 2025
Solicitation Amendment W9127N25BA0070001 SF 30 PUBLISH.pdf	PDF	Aug 25, 2025
B.07 Pre-Bid Site Visit, Sign-In Sheet, FY25 MSH SRS Crest Raise.pdf	PDF	Aug 14, 2025
A.03 MSH SRS SCR Plans - Copy opt.pdf	PDF	Jul 28, 2025
B.08 Solicitation - W9127N25BA007 - MSHSCR25_SPECS_Advertise.pdf	PDF	Jul 23, 2025

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G 2E

C D

Fi le

L as t S av ed B y:

G-002

M O

U N

. H

T R

N S

R E

O N

D S

D R

, G

N O

S, AN

, P .E

D .M

C C

U R

D Y

T, P .E

D 1.

G -0

.d w g

PORTLAND DISTRICT

U .S

. A R

M Y

C O

O F

R S

D D

D , O

O N

N N

D R

B Y:

C H

D B

C R

O N

D B

C O

N O

SHEET

IDENTIFICATION

D R

G N

U M

US Army Corps of Engineers ®

T D

54321

GENERAL LEGEND

GENERAL CROSS REFERENCING SYMBOLS

SECTION

SCALE: X" = X'-X"SDXXX

SDXXX

SECTION/DETAIL TITLE

(CENTERED UNDER SECTION/DETAIL)

SECTION SYMBOL

DETAIL SYMBOL

B/W BETWEEN

CLSM CONTROLLED LOW-STRENGTH MATERIAL

CO CONTRACTING OFFICER

CY CUBIC YARD

E EASTING

EL ELEVATION

FT FEET

GQAR GOVERNMENT QUALITY ASSURANCE REPRESENTATIVE

H HORIZONTAL

HVAC HEATING VENTILATION AIR CONDITIONING

HWY HIGHWAY

LT LEFT

MIN MINIMUM

MSH MOUNT SAINT HELENS

NPDES NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM

NTS NOT TO SCALE

NGVD29 NATIONAL GEOTETIC VERTICAL DATUM OF 1929

NAD83 NORTH AMERICAN DATUM OF 1983

N NORTHING

O.C. ON CENTER

O.D. OUTSIDE DIAMETER

R= RADIUS EQUALS

RCC ROLLER COMPACTED CONCRETE

RT RIGHT

SRS SEDIMENT RETENTION STRUCTURE

STA STATION

TYP TYPICAL

V VERTICAL

W/ WITH

WD DESIGN UNIT WEIGHT

ABBREVIATIONS

PROJECT AREA WORK BOUNDARY

MAJOR CONTOUR

MINOR CONTOUR

FENCE

CENTERLINE

BREAKLINE

NOTES:

1. ALL DRAWINGS IN THE SHEET INDEX ARE CONTRACT DRAWINGS THAT

WILL BE MODIFIED TO AS-BUILT RECORD DRAWINGS BY THE

CONTRACTOR PER SECTION 01 78 00 PROJECT RECORD DOCUMENTS.

S O

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N B

C K

D B

D E

N E

D B

D E

S C

N M

A R

D A

T E

S U

B M

T E

D B

P L

O T S

C A

L E

C O

N T

R A

C T N

IDENTIFICATION

SHEET

D A

T E

A P

P R

D R

A W

G N

U M

B E

R of Engineers

US Army Corps fi

P L

O T D

A T

54321

DRAWING PLOT SIZE: ANSI D DATE AND TIME PLOTTED: 11/30/2012 1:30:29 PM BY USERNAME: bradh (Untitled Workspace) SHEET NAME: Sheet Name

OREGON

WASHINGTON

VANCOUVER

GRAVEL ACCESS ROAD

SEDIMENT DAM ROAD

BRIDGE

HIGHWAY 504

GREEN RIVER

PORTLAND

MT.HOODOREGON CITY

COLUMBIA

MT. ADAMS

THE DALLES

RIVER

LONGVIEWASTORIA

SCALE IN MILES

TILLAMOOK

KELSO

COWLITZ RIVER

RANDAL

ROCK

CASTLE

SCALE IN MILES

MT.ST

HELENS

KELSO

LAKE

SILVER

RIVER

COLUMBIA

LONGVIEW

ROCK

SOUTH FORK

TOUTLE RIVER

CASTLE

COWLITZ

RIVER

VICINITY MAPLOCATION MAP

O C

E A

N P

A C

100 403020 543 8761

10 50 0 21

NORTH FORK

TOUTLE RIVER

C-003

PROJECT SITE

U .S

A R

M Y C

O R P S O

F E

N G

E E

R S

P O

R T

L A

N D

O R

P O

R T

L A

N D D

T R

PORTLAND DISTRICT

S I

D T

R D

G .d g n

E C

G-001

U N

T S

H E

L E

FLOW

S P

ILLW

A Y

K Y

L E C

M C

C U

N E P .E

R D .1

E C

P H

H N

S T

A D

R E

E D R

E C

O R

D D

R A

G S

B U

T C

O N

N S

D E S

N A

E R

L A

N D K

E Y I

N D

E X P

L A

NINSTRUMENTATION PLANTRD-1.101-7/6C-004

STAGING AND DISPOSAL AREASTRD-1.101-7/5C-003

ROCK EXCAVATION PLAN AND SECTIONSTRD-1.101-7/4C-002

RCC PLAN AND SECTIONSTRD-1.101-7/3C-001

SURVEY NARRATIVE AND METADATATRD-1.101-0/2G-002

DESIGN AERIAL AND KEY INDEX PLANTRD-1.101-0/1G-001

DRAWING TITLEDWG #DWG ID

SHEET INDEX

S R S F

O O

T S

L W

A Y R

DATE OF ACCEPTANCE 11/16/2012

DATE OF COMPLETION OF CONTRACT 12/4/2012

DATE OF RECEIPT OF NOTICE TO PROCEED 7/30/2012

CONTRACTOR LKE CORPORATION

CONTRACT NO W9127N-12-C-0016

C-002

C-004

C-001

WASHINGTON

TOUTLE MTN. RANGE

OREGON

SKAMANIA CO.

COWLITZ CO.

MT. ST HELENS

LEWIS CO.

VICINITY MAP

C o w li tz R

CLARK CO.

SPIRIT LAKE

WOODLAND

Ka lama R

LONGVIEW

KALAMA

VANCOUVER

PORTLAND

Lewis R.

Columbia R.

KELSO

N. Fork Toutle R.

S. Fork Toutle R.

Green R.

To utl e R

SILVERLAKE

CASTLE ROCK

Coweeman R.

TOUTLE

AS CONSTRUCTED

500’ 0 500’

WORK AREA IS AVAILABLE IN DIGITAL FILES.

ORTHOPHOTO AERIAL IMAGERY OF SPECIFIED SPILLWAY

DESIGN AERIAL IMAGE SHOWN ON ALL SHEETS. COLOR

NOTE:

W9127N24R0005

937.5

937.8

937.7

938.5

937.5

936.4

938.6

938.0

SCRB

RS-R

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N E

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T E

D B

P L

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C A

L E

C O

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R A

C T N

IDENTIFICATION

SHEET

D A

T E

A P

P R

D R

A W

G N

U M

B E

R of Engineers

US Army Corps fi

P L

O T D

A T

54321

DRAWING PLOT SIZE: ANSI D DATE AND TIME PLOTTED: 11/29/2012 3:02:11 PM BY USERNAME: bradh (Untitled Workspace) SHEET NAME: Standard_Sheet

EAST NORTH ELEVATION DESCRIPTION

RS-R 1483302.440 382486.919 MONUMENT #1

SCRB 1483311.810 382479.480 SCRIBED X

S-9 381362.06

S-10 381304.92

GP-O 384836.921474838.10 810.22’ BRASS DISK

1481692.88 1000.05’ IR IN MON BOX

1481610.73 999.70’ IR IN MON BOX

USACE PRIMARY CONTROL CO-ORDINATES

REF

999.40’

999.32’

C-001

PROJECTED TO

EXISTING GRADE

DRILLED 2.5" DIAMETER HOLES THROUGH

RCC AND 5’ INTO ROCK. DRILLED HOLES

ALONG THESE LINES AT 5 FT SPACING.

PLACED RCC DIRECTLY

AGAINST EXISTING SHOTCRETE

RADIUS =300’

LOW FLOW CHANNEL

1+59.0

C-001

C-001C-001

1.0%

ROLLER COMPACTED CONCRETE

30’ 0 30’

934.0’

D .1

C -0

S it e P la n F

T .d g n

U .S

A R

M Y C

O R

P S O

F E

N G

E E

R S

P O

R T

L A

N D

O R

P O

R T

L A

N D D

T R

PORTLAND DISTRICT

A N

S I

G E

C D J T

M O

U N

T S

H E L E

N S

K Y

L E C

M C

C U

N E P .E

R C

C P

L A

N A

N D S

E C

N S

T R

D -1 .1

-0

J O

R D

A N R

E R

G E

C H J P

C-001

EL. = 949.0’

ELEV. VARIES

+3.5’

+3.5’+1.5’

EL. = 934.8’

EL. = 940.0’

PT 7 FOOT1483491.15382202.47E

PC 7 FOOT1483655.12382286.72H

PT 7 FOOT1483483.44382239.33G

REMARKSEASTINGNORTHING

PC 7 FOOT1483643.05382234.78F

POINT COORDINATES

N -1

-R -0

PROJECT ELEVATION = NAVD 88 (FT) -2.94’.

ELEVATIONS BASED ON DATUM ASSUMED NGVD 29/47

HORIZONTAL WA SOUTH NAD 27

PROJECT DATUM

PLUNGE POOL

MIN. 1’ THICK

1’ HIGH BY 1’ WIDE

RCC BUMPS

AND REPLACED WITH RCC.

OVEREXCAVATED SLOPE 3 FEET

SEE NOTE 3.

ASPHALT OR EXISTING RCC

PLACED RCC ON CLEANED EXISTING

8’+/-

8’+/-8’+/-8’+/-

ROLLER COMPACTED CONCRETE

-7.8% TO -10.2%

VARIES

EL. = 947.0’

+0.6% TO -2.4%

VARIES

CHANNEL

LOW FLOW

EL. = 945.5’

-0.4% TO +0.2%

VARIES -3.4% TO +2.6%

VARIES

-2.3% TO -6.9%

VARIES

-8.6% TO -14.5%

VARIES

N -1

-C -0

S R

S F

O O

T S

L W

A Y R

E R

E V

E D R

E C

O R

D D

R A

G S

/A S -B

T C

O N

N S

AND REPLACED WITH RCC.

OVEREXCAVATED SLOPE 3 FEET

SEE NOTE 3.

-2.7% TO -8.0%

VARIES

-1.0% TO -4.7%

VARIES

-10.0% TO -9.3%

VARIES

0.0% TO -0.2%

VARIES -1.0% TO -4.2%

VARIES

-4.0% TO -1.7%

VARIES

AS CONSTRUCTED

DATE OF ACCEPTANCE 11/16/2012

DATE OF COMPLETION OF CONTRACT 12/4/2012

DATE OF RECEIPT OF NOTICE TO PROCEED 7/30/2012

CONTRACTOR LKE CORPORATION

CONTRACT NO W9127N-12-C-0016

HOLE 5’ INTO ROCK

DRILLED 2.5" DIAMETER

5.7’

RCC

ADDITIONAL

HOLE 5’ INTO ROCK

DRILLED 2.5" DIAMETER

8.8

HOLE 5’ INTO ROCK

DRILLED 2.5" DIAMETER

0 20’10’

SECTION

E L

5’

0’

SLOPE = DOWNSTREAM FLOW.

DESIGN SLOPES SHOWN. ALL AS-BUILT SLOPES VARY. MINUS 4.

BY COR AND TO BE PAID FOR USING CLINS 0004 AND 0005.

OVEREXCAVATION AND REPLACEMENT WITH RCC WAS DIRECTED 3.

RCC SLOPES NOT TO EXCEED 1H:0.9V.2.

PROJECT ELEVATION = NAVD 88 (FT) -2.94’.

ELEVATIONS BASED ON DATUM ASSUMED NGVD 29/471.

NOTES:

0’

VARI

0’

8’

RCC

+ 1 .5’

8’+/-

9.3’

8’+/-

48.4’

S O

A T

N N

E N

A M

D W

N B

C K

D B

D E

N E

D B

D E

S C

N M

A R

D A

T E

S U

B M

T E

D B

P L

O T S

C A

L E

C O

N T

R A

C T N

IDENTIFICATION

SHEET

D A

T E

A P

P R

D R

A W

G N

U M

B E

R of Engineers

US Army Corps fi

P L

O T D

A T

54321

DRAWING PLOT SIZE: ANSI D DATE AND TIME PLOTTED: 11/30/2012 8:54:22 AM BY USERNAME: bradh (Untitled Workspace) SHEET NAME: Standard_Sheet

1+002+003+005+006+007+008+009+00 4+00 920920

C-002

C-002C-002

D .1

C -0

C h a n n e l F

T .d g n

C K E

X C

A V

A T

N P

L A

N A

N D S

E C

N S

U .S

A R

M Y C

O R

P S O

F E

N G

E E

R S

P O

R T

L A

N D

O R

P O

R T

L A

N D D

T R

PORTLAND DISTRICT

A N

S I

G E

C D J T

M O

U N

T S

H E L E

N S

C-002

K Y

L E C

M C

C U

N E P .E

T R

D -1 .1

-0

G E

C H J P

S T

E P

H E

N S

C H

L E

N K

E R P .E

GROUND

EXISTING

GRADE

FINISHED

2+58.9

2+25.3

S R

S F

O O

T S

L W

A Y R

E R

E V

E D R

E C

O R

D D

R A

G S

/A S -B

T C

O N

N S

N -1

-C -0

N -1

-R -0

1+001483842.90382266.56A

PC1483648.94382647.11B

REMARKSEASTINGNORTHING

PT1483502.96382820.44C

END1483374.22382916.74D

POINT COORDINATES

IS APPROXIMATE

FILL SLOPE SHOWN

PROJECT ELEVATION = NAVD 88 (FT) -2.94.

ELEVATIONS BASED ON DATUM ASSUMED NGVD 29/47

NOTE:

EXCAVATION VARIES 932.3’ TO 932.9’

RCC

AS CONSTRUCTED

DATE OF ACCEPTANCE 11/16/2012

DATE OF COMPLETION OF CONTRACT 12/4/2012

DATE OF RECEIPT OF NOTICE TO PROCEED 7/30/2012

CONTRACTOR LKE CORPORATION

CONTRACT NO W9127N-12-C-0016

VERTICAL EXAGGERATION: 3x

PROFILE

ORIGINAL GROUNDROLLER COMPACTED CONCRETE ORIGINAL GROUNDEXCAVATED GROUND

EXCAVATED GROUND

40’

0 20’10’40’

10%

END=9+03.8

PLUNGE POOL

EXISTING GRADE

R=500’

C-002

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C A

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C O

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R A

C T N

IDENTIFICATION

SHEET

D A

T E

A P

P R

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B E

R of Engineers

US Army Corps fi

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54321

DRAWING PLOT SIZE: ANSI D DATE AND TIME PLOTTED: 11/29/2012 2:28:56 PM BY USERNAME: bradh (Untitled Workspace) SHEET NAME: Standard_Sheet

GRAVEL ACCESS ROAD

C-003

U .S

A R

M Y C

O R

P S O

F E

N G

E E

R S

P O

R T

L A

N D

O R

P O

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L A

N D D

T R

PORTLAND DISTRICT

A N

S I

G E

C D J T

M O

U N

T S

H E L E

N S

K Y

L E C

M C

C U

N E P .E

S T

A G

G A

N D D

P O

S A

L A

R E

A S

T R

D -1 .1

-0

J E

R E

M Y A

P P

T P .E

G E

C H J P

T R

D .1

C -0

P O

S .d g n

N -1

-R -0

N -1

-C -0

S R

S F

O O

T S

L W

A Y R

E R

E V

E D R

E C

O R

D D

R A

G S

/A S -B

T C

O N

100’ 0 100’

LIMITS OF CONSTRUCTION

APPROXIMATE

DATE OF ACCEPTANCE 11/16/2012

DATE OF COMPLETION OF CONTRACT 12/4/2012

DATE OF RECEIPT OF NOTICE TO PROCEED 7/30/2012

CONTRACTOR LKE CORPORATION

CONTRACT NO W9127N-12-C-0016

AS CONSTRUCTED

STOCKPILE

ROCK

EXCAVATED

NO POWER IS AVAILABLE ON THE SITE.2.

-2.94.

29/24 PROJECT ELEVATION = NAVD 88 (FT)

ELEVATIONS BASED ON DATUM ASSUMED NGVD 1.

NOTES:

A T

N N

E N

A M

D W

N B

C K

D B

D E

N E

D B

D E

S C

N M

A R

D A

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S U

B M

T E

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C A

L E

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IDENTIFICATION

SHEET

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R of Engineers

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54321

DRAWING PLOT SIZE: ANSI D DATE AND TIME PLOTTED: 11/29/2012 2:31:41 PM BY USERNAME: bradh (Untitled Workspace) SHEET NAME: Standard_Sheet

END 3" CONDUIT

APPROX. LOCATION

APPROX. 2’ DEEP

3" CONDUIT

APPROX. LOCATION

CONDUIT UP WALL

LOCATION BEGIN 3"

EL. 951.0 APPROX.

C-004

BEGIN 3" CONDUIT UP WALL

APPROX. LOCATION

EL. 950.3 +/-

C-004 C-004

3" CONDUIT

EL. 946.22 I.E.

NTS

DETAILA

D -1 .1

-0

U .S

A R

M Y C

O R

P S O

F E

N G

E E

R S

P O

R T

L A

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O R

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L A

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T R

PORTLAND DISTRICT

A N

S I

G E

C D J T

M O

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H E L E

N S

C-004

K Y

L E C

M C

C U

N E P .E

T R

U M

E N

T A

N P

L A

C H

Y G

A A

R D P .E

G E

C H J P

T R

D .1

C -0

In s tP la n .d g n

N -1

-R -0

N -1

-C -0

S R

S F

O O

T S

L W

A Y R

E R

E V

E D R

E C

O R

D D

R A

G S

/A S -B

T C

O N

LOW FLOW CHANNEL

GROUND

APPROXIMATE

DETAIL 1

~3"

3" GALVANIZED

STEEL CONDUIT

2’

ROLLER COMPACTED CONCRETE

DAYLIGHT 3" CONDUIT

EL. 946.89 I.E.

3" GALVANIZED

STEEL CONDUIT

APPROX. LOCATION

AS CONSTRUCTED

DATE OF ACCEPTANCE 11/16/2012

DATE OF COMPLETION OF CONTRACT 12/4/2012

DATE OF RECEIPT OF NOTICE TO PROCEED 7/30/2012

CONTRACTOR LKE CORPORATION

CONTRACT NO W9127N-12-C-0016

EXISTING WEATHER STATION

SAWCUT, REMOVE AND

REPLACE ASPHALT

3" GALVANIZED

STEEL CONDUIT

APPROX. LOCATION

NEW

PULL

BOX

EXACT TERMINATION LOCATION AT EXISTING WEATHER STATION.

AND TERMINATED 18" ABOVE EXISTING GROUND. USACE LOCATED

AT EXISTING WEATHER STATION CONDUIT RESURFACED VERTICALLY 4.

WITH BRACKETS SPACED NO MORE THAN 5’ APART.

(CONDUIT LENGTHS MARKED "X") WERE ATTACHED TO THE STRUCTURE

CONDUIT ATTACHED TO EXISTING CONCRETE SPILLWAY GUIDE WALL 3.

ALL CONDUIT 3" GALVANIZED STEEL.2.

PROJECT ELEVATION = NAVD 88 (FT) -2.94’.

ELEVATIONS BASED ON DATUM ASSUMED NGVD 29/471.

NOTE:

CORPS OF ENGINEERS 4 I

- 2.

GENERAL NOTES

The fol lowing sectioning convention shal I be interpreted thusly:

section identification letter ~ number of sheet on which section appears section identification letter

SECTION ffi sheet number where section is cut ~

Detai I ing convention shal I be interpreted similarly as for sectioning.

The fol lowing general abbreviations are used on the structural drawings.

D/S U/S ow C.J.

Contr. Jt.

Typ.

dwg.

El., Elev.

0, diat

Exp. Jt.

Det.

max., min.

w/, w/o

O.D.

I. D.

req'd N.C.

symm.

Ft.

NTS

std.

no.

cone.

anch.

re inf.

C.M.P.

CRES

galv.

W.P.

F. W.

F.H.

R.H.

o.c.

B.C.

C to C, C. C.

dist.

long.

horiz.

vert w.s.

RCC

PCC

TOG

sch gr at brg fed spec alum

R opp sp,sps c.s.

downstream upstream outlet works construction joint contraction joint typical drawin9 elevation diameter center I ine expansion joint detai I maximum, minimum with, without outside diameter inside diameter required no chamfer symmetrical feet not to scale at standard number concrete anchor rein for cement corrugated metal pipe corrosion resisting steel galvanize plate work point weld plate flat washer flat head round head on center bolt centers center to center distance longitudinal horizontal vertical waters top roller compacted concrete point of curvature point of tangency point of intersection point of compound curvature dam axis top of grating schedule grating bearing federal specification aluminum radius opposite space, spaces countersunk handrai I invert elevation

---- - __ _L

CONCRETE NOTES

Concrete and Roi ler Compacted Concrete design strengths wi I I be based on the fol lowing minimum 28-day compressive strengths:

a. Roi ler Compacted Concrete <RCCl <1 .) Placed in the Spi I lway or

Outlet Works 3000 psi (2.l Placed on the Embankment

Dam 2000 psi

b. Spi I I way Approach Pier Lining 4000 psi

c. Plunge Pool Lining 4000 psi

d. Outlet Works Exit Channel Lining 4000 psi

e. Al I other concrete 3000 psi

Actual strengths wi I I be dependent on the concrete mixes designed by the Contracting Officer.

Al I exposed edges and corners of concrete shall have%* chamfers unless otherwise noted.

This concrete shal I include corners of abutting wal Is and the bottom surface of floor slabs at contraction joints. but shal I not include blockouts for rails, gate guides, handrai I sockets. and stair treads, or as otherwise noted and/or marked N.C.

Al I re-entrant ang I es sha I I have I Y2· fi I I ets except at the junction of wal I and floor surfaces or as noted otherwise.

Al I horizontal concrete surfaces shal I receive a wood float finish <except for horizontal concrete subject to foot traffic, which shal I have a I ight broom finish) unless noted otherwise.

CONCRETE COVER

Unless otherwise noted, the clear distance from the face of the concrete to the reinforcement shal I be as fol lows:

a. Concrete cost ago inst earth or rock _______ 6 •

b. Concrete exposed to f I owing water __________ 6 •

c. Par ape ts. __ ------------------ ________ --------- _________ . 2 •

d. A I I other concrete________________________________ 4 •

REINFORCEMENT NOTES

Preparation of placing drawings and bar bending schedules shal I be in accordance with ACI 315, 1 Manual of Standard Practice for Detoi I ing Reinforced Concrete Structures.•

Unless otherwise noted, al I hooks shal I be standard hooks as defined by ACI 318-83.

Bar spacing dimensions are measured to the centers of bars.

stag. splice A symbol such as / indicates reinforcing bars to be stagger lap spliced by alternating lap locations as shown, and providing the indicated lap length.

14 ' - 3 ..

A notation such as II'- o• fol lowing the bar size and spacing indicates a bent bar with on out-to-out dimension <not the bar length> of 14'- 3". A dimension on the short leg indicates the out-to-out length of the short leg. Where an L is shown on the short leg, the length shal I be equal to the splice length shown on the table. When no letter or dimension is given, provide a standard 90° hook.

Specific abbreviations used on reinforcement drawings in addition to General Abbreviations ore as fo I I ows:

T. F.

B.F.

E.F.

Cir.

Stag. Sp I.

o. L.

E.L.

E.W.

= top face = bottom face = each face = clear = stagger splice = outside layer = each layer = each way

I 1 U.S. ARMY

REINFORCEMENT TABLES

1. Development and splice lengths, in inches, for reinforcing bars used in this contract wi I I be found in the tables shown below unless otherwise noted on drawings.

2. Top bars ore horizontal reinforcement bars so placed that more than 12* of concrete is cast below the bars.

3. Table shown below is based on minimum bar spacing of 6".

4. Reinforcing steel shal I conform to ASTM A 615 including SI, Grade 60.

For f'c = 3,000 psi

Bar Development lengths Splice lengths

Number Top bars Other bars Top bars Other bars

I 2· 12· 12· 16" 21 • 28' 35• 45.

55•

13" 18' 22· 28" 39• 51 • 64* 81 •

1 oo·

12" 13• 16 ..

20· 28· 36" 46" 58' 71 *

For f'c = 4,000 psi

Bar Development lengths Splice lengths

Number Top bars Other bars Top bars Other bars

I 3" 18" 22" 27" 34• 44• 56' 71 ,, s1·

'---~ 90AUC01 AS wuo•J nuw ~u RfYl$IOH QATt OlSCfUl"TlOM

12· 13" 16" 19' 24" 32• 40* 50" 62"

U.S. ARMY ENGINEER DlSTRICT, PORTLAND

MOUNT ST. HELENS SEDIMENT CONTROL

COWLITZ ANO TOUTLE RIVERS. WASHINGTON

SEDIMENT RETENTION STRUCTURE

DRC

SPILLWAY AND OUTLET WORKS GENERAL

COMPUTER I

A10Eo I Oe:s1GN •

OR•FTING

THIS PRINT REDUCED

TO ONE-HALF SCALE

CAOO DaSlQH fl'IL£• tout I e/sra/<lall/oabul It 12x2•1 I .trd

GENERAL CONCRETE AND

REINFORCEMENT NOTES

SU8UE1'TEDt Dl'.S[QNED• I DftAWN• I CHECKl!!:Dt

McCRACKEN S. ERICSONj M. CRUMP NEAL R. HANSON P.E.

1986 SEP 8 TRD-2-2/11 l'"'-ATE

DATE1

D c

3 ___________________ f _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___ ? _____ ·- _____________________ L ___________________________ 1 __________________________ _ c

SPILLWAY APPROACH

PIER

SPILLWAY APPROACH

PIER LINING

EMBANKMENT DAM

EL.900.0

EL.860.0

0 ---- ~--0 4------~-------

' t I/) s

I ~ I o

2of I

I I

1-~

LEFT DAM

AXIS WALL

EMBANKMENT DAM

RETAINING WALL

PLUNGE POOL

EL. 820.0

Top of Rock

EL.900.0

P L A N 1 H ::50 I

CoMPuTe:Pt:

A10EO

Oe:sioN • OflilAFT!NO

THIS PRINT REDUCED

TO ONE-HALF SCALE

1 U.S. ARMY :

AS-CONSTRUCTED

CONTRACT NO. 0ACWS7-87-C-OOI 5

90AUG01 J.S CONSTRUCTED

U.S. ARMY ENGINEER DISTRICT, PORTLAND

MOUNT ST. HELENS SEDIMENT CONTROL

COWLITZ AND TOUTLE RIVERS, WASHINGTON

SEDIMENT RETENTION STRUCTURE

DRC ..

SP!LLWAY AND OUTLET WORKS GENERAL

PLAN

OEShlNllD• CHIE.CXE.01

NE AL R • HANS 0 N_L _ _l'_:_§:.:__ B.H.M. D.R.C

OATE1

1986 Sept. 8 73 TRD-2-2/12

I I I I I I I I I I I I I I I I

0' I

I c:

CORPS OF ENGINEERS 4

EMBANKMENT DAM

RETAINING WALL--~

LEFT DAM

AXIS WALL

so· -o· 40'-0'

.. I

<;1~ o,<J.') cilci +-i+-

~111!

""1<( ciJf I

OUTLET 1 WORKS

10''-o·

UPSTREAM ELEVATION

Y •• = I . -o.

10· -o·

U.S. ARMY

RIGHT DAM AXIS WALL

EL.1002.00 Top of parapet

EL.960.00

·'1.oo---SP ILL WAY

APPROACH PIER

EL. 940. 00

SPILLWAY APPROACH

PIER LINING

CoMP'UTl!:R

Aioa:o 01tSION 44

01"14FT!NG

THIS PRINT REDUCED

TO ONE-HALF SCALE

AS-CONSTRUCTED

CONTRACT NO. DACW57-e!·C-OO! 5

NOTE;

Pipe elevotlons show pipe Invert workpolnt elevotlons See TR0-2-2122.

U.S. ARMY ENGINEER DISTRICT. PORTLAND

MOUNT ST. HELENS SEDIMENT CONTROL

COWLITZ ANO TOUTLE RIVERS, WASHINGTON

SEDIMENT RETENTION STRUCTURE

SPILLWAY ANO OUTLET WORKS GENERAL

UPSTREAM ELEVATION

SUBMlTTI!:01 DttStCJNl!O'

NEAL R. HANSON, P.E. B.H.M.

c ... oD Ol!lfON FILE"• OAT&• $HllltTJ tout!e~r,:s/dom/asbul!t/ I 986 Sept._.§._ 74 TRD-2-2/13 c

D c

CORPS OF ENGINEERS

SPILLWAY

APPROACH PIER

SPILLWAY APPROACH

PIER LINING

E~_9 4.Q_!_OO.

4 3

RIGHT DAM AXIS WALL

EL.960.00

Cjz 0 co > . _o

4 3

I nl 0 18 ~lo 01 O'>

-1~ 01-:

t;I~

1 Vl

•1< c>10

<:J,i I

OUTLET! :woRKS I I

I I EL. 1 002. 50

EL ~39

0 0 lo 0 0 EL.. ~~ 3. :rn I I ol 0 0 0 0 EL.923.78 I I lo 0 0 0 0 Et..~13.:rn I

I I 0 0 01 0 0 f;!.,.9Q3,78

I I

0 0 IQ 0 0 EL.893.78

I I 0 0 o' 0 0 EL.883.78

I i~

~ EL.855.13

EL. 835. 00

z~::r: 0 00

EL. 820.00

DOWNSTREAM ELEVATION

Yt,·:: 1'-0"

Cjz 0 co > . _o

U.S. ARMY

LEFT DAM

AXIS WALL ·1

Jz Oc:o

>' _o

EL. 999.00

.~-EMBANKMENT DAM

RETAINING WALL

CEMBANKMENT

DA~

. 915.00 1----..lc.lz.!..:~~1:!--~ ~ > < > < > < > < : . < '.

CoMPUTEA A1e>£O

Oe::SIQN.

0AAFTtN0

THIS PRINT REDUCED

TO ONE-HALF SCALE

Cl.OD 01!.Sl.GN F lL&1 toutle/srs/dam/osbui It /2x2xl 4. trd

AS-CONSTRUCTED

CONTRACT NO. OACW57·87·C·OQl 5

NOTE:

Pipe elevotlons show pipe Invert elevations

U.S. ARMY ENGINEER DISTRICT. PORTLAND

MOUNT ST. HELENS SEDIMENT CONTROL

COWLITZ AND TOUTLE RIVERS. WASHINGTON

SEDIMENT RETENTION STRUCTURE

SPlLLWAY AND OUTLET WORKS GENERAL

DOWNSTREAM ELEVATION

SUBMITT£01 01.SlONl:Ot DftAWN1 CHltCJU!.D•

NEAL R. HANSON, P.E. McCRACKEN Z.F.

75 TRD-2-2/14

SHCl.'Tt DATlh

1986 Sept. 8

D c

CORPS OF ENGINEERS 4 3

EL. 900.00

EL.

L.fl60.

_IL820.00

4 3

1 O' -o•

15 '-0

I lo I~ 1+

I~ 1ci I ;j;

I •

1"'. to I 20'-0*

ELL965.00

I \ =r======== \ ====== -L----------~-----t- - - - - - - -- - --~- - - -

I \ I \

I I

0 u T l,1_LVLQ£LK_~_

DIVERSION CONDUIT

<To be plugged and filled with concrete after diversion is completed)

EMBANKMENT DAM

RETAINING WALL

U.S. ARMY

EL.875.00

12'-o·

._~o

EL.835.00

:r:

(J) ~

0. c ~ 0 V) >

1 os '-o·

OUTLET WORK

TRANSVERSE SECTION

YiG':: 1'-o•

CoMPUTSFt

A1oa:o Ds:s10.N a.

DRAFTING

THIS PRINT REDUCED

TO ONE-HALF SCALE

CA.DD Dlt$10N FlLE• tout le/srs/dom/asbul It /2x2x1 5. trd

EL.855.0 SI ope -0. 5X

AS-CONSTRUCTED

CONTRACT NO. OACl57·81·C·OO! S

AS CONSTRUCTED DRC

LOWERED DECK_,___i,J!'._Q_~~ ENl.:fl~NCE S. K.

OUCRIP'TIOM ff

U.S. ARMY ENGINEER DISTRICT, PORTLAND

MOUNT ST. HELENS SEDIMENT CONTROL

COWLITZ AND TOUTLE RIVERS, WASHINGTON

SEDIMENT RETENTION STRUCTURE

SPILLWAY AND OUTLET WORKS

OUTLET WORKS

TRANSVERSE SECTION

SUBMtTTEOt

NEAL R. HANSON, P.E.

¢AIU" Oiti!tdN l!IAANCH

OATl!.t SHEET, DESIGNED•

B.H.M. Z.F.

GENERAL

C:HE.CKIDr

D.R.C.

TRD-2-2/1 5 1986 Sept. 8 76

,.LATE

D c

CORPS OF ENGINEERS 4 VALUE ENGINEERING WILL INCREASE YOUR PROFITS

CONCRETING PROCEDURE. AT INTE.RFACE BETWEEI'! RCC Af..J!) CONCRETE

Form lsr

Old Concrete

Consolidation a11,,...,ance (Approx. 10% of Cone Spread)

/fCC ~nd ~ Placement

Old Concrete

Concre!"e.

/s "" 'st 1..,,1oced le wing a I:/ af tt.e end See Note I

RCC 15 :spread in thin layers unfil full fh1cknes:s i:s achieved.

An internal v1bra for1!J flrsf1nserte :n fhe RCC side of' +h,, 'otnfbefv.een +f)c ·t...,odtf"f'erenf _.,,r;cr ::~e.s f":;'!Jw~ l·; :::.;~,.s . ./ ;.Jtion or

Con:solida t ion of interf'act!I br,; internal vi bra tors is done fora longer period of' ti rne fhan ordinary part,, f) ·,,:0'1re thorough blending of' concref<? one/ !Y'CC.

cc ."'ere the hole pr:; l'.lced bf.I in::ier f1on of'the vibrator 1n fhe RCC being complede:ly closed.

Aii close. as po:s::uble: ro]cunf

Con::iolidof1on of' RCC i::i done by vibratory rolle:r too:Jcfo.:se J::J po:ssd)!e fo fhe joint.

Old Conct·<t:fe

VERTICAL FACE

1~0· rrnn.

RCC~

!)Place bedding mix offer ploceml!!nt ofRCC f:)Consolidafe bedding rni~ and inter face befwf!!en bedding mix and

RCC by immer:sion type vibro tor::i.

!J)Compoct RCC by v1brofory rollers.

Previously placed hardened bedd111g mix

I} Expose coarse s:ze aggregate byl?igh pres.sure washing and/ or wet sandblasf:ng.

e)Ploce beddtngrnix

3) Compoc t R.CC by vibra fory rollers.

VERTICAL COLD .JOINTS-R_CC

RCC

Old Concrete.

Consolidation allowance (Approx. 10% of' Cone. Spread)

Old Concrete

Vi bra tors not ;:,hown

Conso/1dat1on by two infernal vibrotor:J is done fora/anger period of' time than orc/inar·11 part::i fa in:sure thorough blending ..;f

RCC

Old Concrete.

Place Ji bedding mortar on clean f'ounda tion rock immedia fely prior to placement of RCC - work. bedding mortar info all crack$ anclsurf'ace irregularifie::s

Place bedding mix.

wh<!!n t!f"f thickness is less fhon6'

Place t</min of' RCC on f'oundafion RCC may be placed above normal f-op elevation of' llf't to a::, sure G"min. f-hicl<ne.ss

PLACEMENT OF 1st. RCC LIFT ABOVE FOUNDATION N.T.S.

l.lpstreom foct1 panel ct1ntered on tt1rt1/ing pod

'Yer-heal l'orm fslof"ng form sJmi/ar)

LeveNng Pod· contractor de.<signecl

Lt1v111ing

SLOPING FACE

~NCC ,4

::::=: r"":~ ~~ ~~~ ' ;;bedd;ng mot. after placement of RCC.

RCC

e)Con:solidafe bedding mix and in terrace b;!fween bedding mix and Foun-dation RCC by immersion f!lpe vibrafor::i.

!J) Compacf RCC by v1brafory roller.:t.

l)Expo.se coar.:se ::!Jh.e aggregate by high pre.s.:sure washing ond/ or wet :5andbla:::; ting.

t::}Place bedding mix

3) Compact RCC b!J vibratory rollers.

VERTICAL COLD JOINTS ON FOUNDATION

TYPICAL WALL LAYOUT

N.T.S.

Leveling Pad (contractor designed) (i\"mot .Sl"-c:? .7cc;r~gate .3000 psi cone ~ ' '

Forming Panel.:;

(confrac tor de.signed)

TYPICAL WALL LAYOUT

NT5.

U.S. ARMY

Rec Placement Steps for the Ups -eam Face of the Embankment Dam

N.T.S.

Step #1 Depositino Upstream Face RCC

211 ..

Step#3 Placement of Embankment

NOTES:

Step#4 Compaction of RCC and Embankment

Embankment

At the option of the contractor, placement of tht1 concrete may follow placement of RCC.

U.S. ARMY ENGINEER DISTRICT, PORTLAND

MOUNT ST. HELENS SEDIMENT CONTROL

COWLITZ AND TOUTLE RIVERS, WASHINGTON

SEDIMENT RETENTION STRUCTURE

DRC

DJ:

SPILLWAY ANO OUTLET WORKS GENERAL

N.Ts. ROLLER COMPACTED CONCRETE

PLACEMENT DIAGRAMS

NEAL R. HANSON P.E .

...... ,., i.:HQl.llf ••ANCM

""""' 8 SEP 86

77 TRD-2-2116

4 3 2

D c e

CORPS OF ENGINEERS

E!.860.0 \

VALUE ENGINEERING WILL INCREASE YOUR PROFITS

Embankmenf Refatnlng Wolf, see dwg. TRD-c-c/45

Lef'f Dam Axi.s Wall b

1./I ' '

.', &J 5/ope . ___ ~ ' .... ,, "1

I Von 08H

875,00 Leff Monolith') ~~---1-----=--.·---

'<:1r .. ··--·"l

_ _. __ cpnfr Jf. .;, 3.J.---=====+=lt==::!:..=E=r =a=c=o=. o=o====l

5/o.oe 'c::.

51ooe o:, ""-- Pfunge Pool

Et. aeo.o --~

II.

. Foroccess ladder and ")!' .sfc;;ir see dwg. TRO-e·c/39

1 "I .

. ..;.. ........ -· ~-··-.1.-... --. -- . -~---···--------!-I !-+•SE. .. -1----· -··+·

£1.539.:JO

FOr Cenler Monc/1/h Pion .see dwg. TRO-i':'-c/c5

Con tr:

OP£.Q~1-E D / /

Center Monolith "i;

51ope HAN;) 84 ,,./ .......... + ...... ----·-..

-fVon0~8~ ~-------------------+~-r------.

/' Ef. 875.00

U.S. ARMY

AS CONSTRUCTED

CONTRACT No • .OAcws-7-87· C' ·00 IS-to£/. 939

U.S. ARMY ENGINEER DISTRICT, PORTLAND

MOUNT ST. HELENS SEDIMENT

COWLITZ ANO TOUTLE RIVERS, WASHINGTON

SEDIMENT RETENTION STRUCTURE

OUTLET WORKS

NEAL R. HANSON P.E.

Ciii"U.Htir.ii-~ so

PLAN

D c

CORPS OF ENGINEERS 4

El. 860.00 El. 860.00--c

Op/Jona/ RC C -

VALUE ENGINEERING WILL INCREASE YOUR PROFITS

El. 900.00

Et. 899.00

'---..£/. 865.00

For Plunge Poot ond Plvnge Pool Lining See tJwg. TRtJ-2-2/19 a TRtJ-2-2/23

El 875.00

~~ ~ i;) (\j

IV on l-----1 Q8H

Et. 86.J.6.J ----

Et. 859.63 EL.835.00 t--:-----t·-----------------------.......,~+----·-·-+-·--t - ~--f- Oulletworks

£1.

El. 899.00

~ El. 960.00··--

OUTLET WORKS DIVERSION PLAN

.s~ ('"'4

~-o.ir-4,5:..o:jf::ol

I I CJ £/. 861.00

6" Fillet

(ot Sto 9+15 only}

CJ £/. 856. 50

· ra1sla.-9-f:'i5 onl'YT

£/. 863. 63 --

El. 875.00

.. 0UJ.:J!.:Hl.:.()2.

.Q1JILELW08KS DIV~8R I 0 Ii.

SECTION _

\la"-1'-o" a1

0\ .,.

S..:....1_,_fL l!~q.J2IL 2~ CJ El 830.00 I

Roughen surfoce · prior to concrete ptocemenl each side

( Ovflet Works

I CenteTh

OUTLET WORKS DIVERSION

® SECTION

Is"-- 1'-0"

U.S. ARMY

AS CONSTRUCTED

CONTRACT Nd. . .£Jlii'/;lj'2·87 · C·OO/,f'

Revised Elevation 8 Reference

U.S. ARMY ENGINEER DISTRICT, PORTLAND

MOUNT ST. HELENS SEDIMENT CONTROL

COWLITZ ANO TOUTLE RIVERS, WASHINGTON

SEDIMENT RETENTION STRUCTURE

OUTLET WORKS CONCRETE

DIVERSION PLAN AND SECTIONS

1986 SEPT JL___

TRD-2-2/20

DRC

D c

CORPS OF ENGINEERS 4

See l't -

vi c c ::I I., .... ., 5 ..., 3·-0·

See DETAIL

C.J. EL. 990.00

c ,J El 985 QQ c J EL 980 00

C.J. EL.975. 00

c J El 970 00

C.J. EL.965.00

C.J. EL. 960.00

c J El 955 00 c J EL 950 00

DETAIL

C.J. EL.934.00

C.J. EL.931 .00

C.J.

DETAIL 2

t;b.§2lUQ

C.J EL. 865. 00

C.J. EL. 8§1 ,oo

C.J.

C. J. EL. 882. 50

C.J. EL.880.00

C.J. EL.875.00

C.J. EL.870.0

I '-O'R.

c "t !:20Q i~lr!fl( !

L. 856. 0 c ·I ~ 850 00

C.J. EL. 845.00

C.J. EL. 840.00

C.J. EL. 835.00

C.J. EL. 830.00

C.J. EL. 825.00

EL. 820.00

15 ·-o· ea.

1 o·-o· 20 • -o· 1., 8·-

EL.999.00

I I

Concrete placement elevation required for Outlet Works diversion closure

EL 940 00

36't steel pipe, see sht.14

6'-o· 10·-o·

3'0iom.reinforced concrete pipe ttyp. for 6 levels)

--i-.-- - - - - - - - - - - - - - - - - - - - - - - - - - - - -· - - 1----1--__ i _ ______________________________ _ side

6. Fi I let t eo. corner HV finish

1 o·-o· I

C.J. EL.932.78

c J El .llZ.L.l.IL.

C.J. EL.922.78

C.J. EL.91 7 78

C.J. EL. 912. 78

C.J. EL 907.78

c ,J EL 902 18

C.J. EL.897. 78

C.J EL 887 78

c • .i. i;:L. aaz...LL

C.J. EL. 878.78

C.J. EL. 873.78

C.J. EL. 868. 78

C.J. EL. 863.63

Q.J. f;L. 85i!.§3

C.J. gng invert

EL. 855 .1 3

~See Note 5

I· I· I· I· I·

C.J.

Pipe Invert Work Point----..

c. J.

C.J. EL.998.45

HV finish

Slope 17.

G'R.

AS-CONSTRUCTED

Optional RCC

CO!!TRACT NO. 0ACl57·87·C·OOl 5

.. lllOWOTOIO !DIAS POW A •INNING PuTullll

CoMPUT&:R:

A10EO

0ESJON &

ORAFTINQ

THIS PRINT REDUCED

TO ONE-HALF SCALE

CAOO OltSlON l"'ILllt• tout I &/srs/dom/osbul l t /2x2x21 . trd •

U.S. ARMY

3•-0•

1 '-3'

(typ.)

SlopinQ face of curb is typical at curb drain and on deck side of ourb.

4• steel pipe 8 ea. operator

EL.995.45

C.J. EL.995.00

For steel plpe & rlnos see dwo. TRD-3-2-2

NOTES:

1, For pipe invert elevatlons see

Owgs. TR0-2-2/13 and TR0-2-2/14

2. For concrete placement elevations prior to Outlet Works Diversion. see Owo. TRD-2-2/20.

3, For steel pipe I In I nos see Mechonlcal Drawl nos

4, For RCC detoi Is see Dwo. TRD-2-2116

5, Concrete in placements marked with an • wi I I hove a desion strenoth F'o=4000psi.-Actual strenoth wi II be determined by the mix deslon selected by the Controctino Officer.

U.S. ARMY ENGINEER DISTRICT, PORTLAND

S.K S.K.

S.K.

D c

MOUNT ST. HELENS SEDIMENT CONTROL A

COWLITZ AND TOUTLE RIVERS, WASHINGTON .

SEDIMENT RETE~TION STRUCTURE

OUTLET WORKS CONCRETE

SECTIONS AND DETAILS

SHEET 1

1SUIMtTTC:D• CHltCIUt01

NEAL R. HANSON~~ B.H.M. Z.F. K.F.S. --. TRD.-2-2/21

CORPS OF ENGINEERS 4 VALUE ENGINEERING WILL INCREASE YOUR PROFITS U.S. ARMY

_£':!:_/::!. 985.0q_

C.J. §_LJ?J3_<LQQ ... 1---..--/.--µ.,,_,( __ "'~-'--l C.J. Cl 975 00

C.J£1c97Q.00 __ ..__..__l-A...

C.J.:__§J.:.Jt§2:,_02__ 1---+~~ .. -L>.--~'--l.

C.J. £/. .9GOOO

c. J. El. 9 !3 5 . 0 0 . '-'·~·--'""'-"---"'-----"-'---" C. J:.ff:.!,_9._!5_<]_.QQ. f .......... ,Al-.---··"'-"··-·~..,_··-A·--··----·-'- Minim um placement e!eva flon

-·-·;;:4--c;z,~;:.-,;c;70;.--3;1T-,;·'f Work __ _ CJ. _£!.9j__:t..OO . ........... jL ....... ,;. .... '---'·--"-···"·--·'---···"' Diversion closure

CJ. £/. 939.00

_s_._</.:JJ _ _,_~-~4. oo_ 1-c--....,x,.. .... ,A--.... ,,<-... .....-4~A--- -''---'"

C.J. _§!.:._9e92.Q___ ~...L-~!,.'-'---~C....-+-~---/··-~~::,....._._:,'--~

c. J._Q__f!..e4.oo _ ~._,,_,,_µ.,,.,~.+-·" ./ .. ···-~--'---"'--·'•--'-········" CJ £1._Jj?j_}?_:_qQ __

Opl'/Ono/ R.CC.

C.J, __ £/, 9/!f..:.P_Q.__ t·7'"°': ·tr•---;"""'-7"-·;A·----r°'r··r'-·-····A.---.. .\/ C.J. El. 909.00

_f.:..<l:__g_::?,9.J:.:QQ __ 1-···'-<--····".,t.

C.J. £!. 899.00 C.J Ei./. 894- .OO

C.J £.!. 889.00

C. J E !. 884..00

c. J EJ 88 0. 00. I-'----'--.'-··· .,£. ...... : • ..,;:... .. ""''---::..L--::..,c --~.C.7'---'-.,L--.C...,"---r'--"' _C.__J:.!f:.L ?3.Z§_gq_ t----;<c i--r···-:~-~:---;~··· r.~----~--:><;,..--.:,.<,.--.,,:. __ ...,c __ _,~~

c. <) :..§_ I. 8 7 JJ.:<]_(J __

_f.,Y.:....!f:.J..JJ§_f!._,_qg_ r""":r"":r~-r-...:....,."--····:--·"'7""·~c:..:.,~..::. .. :"':..... ..... /: ..... ~--"L...~ . .:-...

___ <;_:!::Lfl_~.2.Q.,_Q!.2.. ~--'-~"'-·'""····-~"--·--- .,..;0.. ..... -.0.. ........... _....,A~-·-'-· .. ·--'--··· ~"- ,, .......... ~ .. - ......... -·-··-·~ .... , _ C.J. £/. 845.Q.Q.._ ____ <:,_.J. Ef. 840.00

____ f:_J. E/83~.0Q_

...... <;,:!Lf:L~!jQ.02. ..

CJ _El.990.00.

-·Opt-1orJol R.C C

4 3

9+90.5 SECTION@

12· = t' -o· 83

_f0!.:....E.L57...§§...:22._ ~....,.""·-¥ cJ ... El. 980.00

C.J. El 975.00

~§.L'i.?..().:.QO._ C.J. £.!. 965.00

_f_,_,,!,.. E.I. 9{> 0.00 C.J. £.I. 955.00

C.J. El. 950.00

40~0"

Minirnum placement elevation .... --required f'or Ouf!cf Works

Diver:;;ion closure

...S: .. ':!: .. JJL~:i!...4:.:2.!L. •··-"<;-r'f--',,.,,,.__,,_..,~~-.,,,.,,_~'--...

C.J £1. 9e9.oo c.J £1. 9e4oo C.J. El. 919.00

C.J. El. 914.00 f!! 915' 00

_s_:._J. El.909.00 r--.:v-~-~"-'."--'?!'---¥-----';.C---'¥~~~....:o.r--1

c. J. E.I. 904.00 C.J. £.!. 900.00

SECTION

opt1~1 t?.c.e.

Nolei Troshbors not shown on this drwg.

SECTION@

-~·=1·-0· 83

NOTE:

For RCC de/01/s see drwq. TRD-2-2/16.

Apr. 8 7 Added revised pipe enfronce Detmf ond Sections

U. S. ARMY ENGINEER DISTRICT. PORTLAND

DRC

~~~~~~~~~~~~~~~~~~~~~~~~~-! A

MOUNT ST. HELENS SEDIMENT CONTROL

COWLITZ ANO TOOTLE RIVERS, WASHINGTON

SEDIMENT RETENTION STRUCTURE

OUTLET WORKS

SECTIONS AND DETAILS

SHEET 2

NEAL R. HANSON P. E.

CONCRETE

1986 SEPT 8 83 TRD-2-2/22

CORPS OF ENGINEERS ENGINEERING WILL INCREASE YOUR PROFITS

EL. 815.oO

~~ u·-o· l ' # I • J SpcsifiJ 5-0 ".J0-0

118 Concrete Anchor Sor

CJ_£t:__S65. 00

· # 10 Concrete -- Anchor Sor

CJ E.Z

NOT£: Drains onr equally spaced between concrete anchor bars of elevot!ons shown.

..ff. 844. 50

Pipe c"PVC Pipe (No Slots)

EL.875.00

_r:;± __ .. EL~. 85!!_.oo ____ _

See DfJrail

.. £L .. 8_-!6.f!!J ____ _

4 x 2 Ftexil>le Coupling

4" PVC Pipe

6x 4 PVC Reducer

%~',;,;vc:\ __ cf·-=·=-=====-;-;';o=_:::l:!:'====t;:::::~ --l Typ;,., ;-~c-. ~-.f!.-.'.'..d.~rt~ti_n ____ _

SECTION

See Detail 3

Upstream Concrete

Face

12# PVC

Waters tops

SECTION

11a" = 1' -o"

SECTION H

3"= 1'-0" 84

*5 Verticol/ /Jar- typical at each end of waterstrJp

SECT ION

1"= 1'-0"

SECTION

PVC

WOterstops-------.

NOTE:

rill 8 remove rock

Grout·--

SECTION

Note:

U.S. ARMY

Where the RCC option is used, RCC within I' - 6" of the water stops will not be of/owed.

Oroins shown on TR0-1-2/18 shall extend through the plunge pool lining.

U.S. ARMY ENGINEER DISTRICT, PORTLAND

MOUNT ST. 'HELENS SEO IMENT CONTROL

COWLITZ AND TOUTLE RIVERS, WASHINGTON

SEDIMENT RETENTION STRUCTURE

OUTLET WORKS

WATER STOPS

PLUNGE POOL

NEAL R. HANSON P. E.

..... o•••" MtAHeH

AND

LINING

CONCRETE

1986 SEPT. 8

84 TRD-2-2/23

CORPS OF ENGINEERS

PLAN SYMMETRICAL

ABOUT OUTLET

WORKS t_

5'-0'

EL. 938. 451

1·-s· I

30'-o· 30' -o•

EL.938.80 I

Slope 2X

Slope 2% ..

£ .938.30 .939.00 Slope 2X

8...: a -to

VI -

1 o·-o·

EL. 940. 00

I I

PLAN - CENTER MONOLITH

11s·=1 ·-o· l O' -o• q_

OUTLETIWORKS

7 '·6' I

12'-6'

_j ! I ,..1 '-o· Ctyp.)

2·-0· 1·-0·

._ __ 1,_,o,_·--'-o"-·-~-i----'-0-·-_.Q.~2,.'...:~i:-s·

DETAIL 2

114'=1 ·-o· 86

@Slope -

35•-o• 35'-o•

4sa85'-o• 1 1 4sa@5'-0" 7'-6' -o 1

~~~=-=2~0+-~o~'--~..:-__.::_~

' .' I I I ~1~·-s·

EL.938. 70 I I

5'-0' 7'-6'

EL. 938. 65 t--:-"f::..._--tl--f---1--t--4~~1--+-...:---L-4---1---!

cp ! ¢1 ! cb ¢ cb

! I i el gza

Jv~ ¢ I i TEL 918 55

I I

Cb I

I I

I .· ..

cbl cb cb

0 0

I I I I • El 908 55 I I

! !O 0 ! +El 898 55

I I

¢! t EL. 888. 55

IO O

¢ cp 0 0 I

I I

I cb ;.4

I cp ; ..

I._/ EL 880 00

~:: ... ·.~.... .• T, > ·< . ..; .

e DETAIL@

2'·o· R.

12• -6·

EL. 998. 30

CURB cun

Slope

EL.998.18

s I ope Y:t" /ft. to 3"0 PVC drain pipe.

. ·'. I :<· s• fi 11 et <typ. ea.

corner)

SECTION

118'=1 '-o·

EL.998.50

EL.998.46

EI. varies

0 ..

5'-o·

820 00

U.S. ARMY

1,4•• concrete anchors t 4• mox. spo.

embed 1 \4' m.~n.

1 a·• Drain ~L _ Slope -!'J_

1 '-2• r-ound wire cloth at each end

TYPICAL VALVE PIT DRAIN

1 '-o·

LADDER AND CAGE

l I

12 '-3' I l'-1Y2·11'-1!1'

OUTLET WORKS

4'-0' l'-IOY'i' 1 2'·1 Y2' I

EL.1002.50 .

I EL. 999. 00 , i

-1======='--4--~~~~~--'l,~~--'--~---+----====

Optional RCC

CoMP"UTER

A1r:.:>&O

0&:.S.ION •

0AAFTINO

NOTES•

I. FOR RCC DETAILS SEE DWG. TR0-2-2/16

2. FOR STAIRS. LADDERS. GRATINGS HATCH COVERS ETC.

SEE STRUCTURAL STEEL ANO MISC. METAL DRAWINGS.

3. FOR ADDITIONAL DETAILS AND DIMENSIONS OF UPSTREAM

PARAPET AT THE CENTERLINE OF THE OUTLET WORKS

SEE ELECTRICAL AND MECHANICAL DRAWINGS

AS-CONSTRUCTED

CONTRACT NO. DACY57·87·C-0015

90AUG01 REVISED AS CONSTRUCTED

60CT 87 LOWE.RED DECK TO EL.939 ___ _

U.S. ARMY ENGINEER DISTRICT, PORTLAND

MOUNT ST. HELENS SEDIMENT CONTROL

COWLITZ AND TOUTLE RIVERS, WASHINGTON

SEDIMENT RETENTION STRUCTURE

OUTLET WORKS CONCRETE

CENTER MONOLITH PLAN

TH Is PR INT REDUCED SUBWITTll:O• O«stONltO• ., TO ONE-HALF SCALE NEAL R. HANSON. P.E. B.H M z E

CAOO oe:stON f'CL£t touTle/srs/dom/asbul It /Zx2x25. trd

DATE.•

1986 Sept. 8

$Wl.l:T1

86 TRD-2-2/25

SK ..,

D c

CORPS OF ENGINEERS

ENGINEER WILL INCREASE YOUR PROFITS

f---r--------1~---lr-----T------,r-----...-~r.~o:p~o~f~r:o:ck~r:v.:a~r1;00~1:e~e:1:ev:a:'':o:nJ=~=======~--=-..

(DS edge of rocf shear z.one.

SIOP.!::_!!!_?!_

. 19+00

~--........:.: ... -·--------+· ---·---··-- .. -... -~--------------.. ·--··-'8!..03.. ___ .. ______ , ___ ._ .QY..U .. fL!fJll!/[S -r-£Kl T, QfAl!lif:.L .......... _ ...;;._ .................. ___ .. __ .............. _,_ .......... 20 .... ~00 -6% f W.P

.· .... · _J~t _____ J~ ______ 1 _____ J.._~ ____ .l _ _...::~ __ _JL-_____ ..._ ____ ~:,;.:: b/e eJevotionJ !e ck rvana Top of ro -------

STA. 18->50

SECTION B

l"=lo' 7

PLAN

1"=20'

CENTERLINE PROFILE

1'=20' f Low Flow Channel

SECTION @

Y211=t'-on

DRAWN AT STA. 21+62.50

U.S. ARMY

30:...ou ......... _.... ...... -.-----··------

NOTES:

22+00

I. All distances ore bosed on the ou1tet works exit channel centertine stationing.

2. Provide I~· x 3 !z• Key of slob f. at cantracfion joints.

AS CONSTRUCTED

CONTRACT No. Of/CWSZ.87-C - 0015"

90AUGOI AS CONSTRUCTED

Revised Low Flow Channel Slope

Revised Pion 8 Profile Added Detail

U.S. ARMY ENGINEER DISTRICT, PORll.AND

MOUNT ST. HELENS SEDIMENT CONTROL

COWLITZ AND TOUTLE RIVERS, WASHINGTON

SEDIMENT RETENTION STRUCTURE

OUTLET WORKS CONCRETE

EXIT CHANNEL LINING

-NEAL R. HANSON, P.E.

""""1sas Sept a

87 TRD-2-2/26

DRC

D c

CORPS OF ENGINEERS 4

El. 999. oq __

E1. 939. 00

£!. 880.c.()2._

SECTION THRU DIVERSION CON

NTS

VALUE ENGINEERING WILL INCREASE YOUR PROFITS

:::1 ... 890 z j::

~ 880 I:;!

.J 0 870

6'x!O' Diversion Rating Curve

No other Pipes Operating

K11 =0.20 f=QOl2 L=l37' 11/S lnvert=856.5 1% Slope

Concre/fl Box Culvert

85o .......... --~---.o~oo=----i-__ 2_0L00----''----3-040_0 __ _.i. ___ 4_0LO_O__J

DISCHARGE, CFS

OUTLET WORKS DIVERSION

RATING CURVE

U.S. ARMY

,......-··--···-· ....... ·---···--·---·-----·------·-···--·----···----······ .... -·-----··-·--···· .... --····-··-··--·-----....c:..:-____ : .. -···'"·· __ A __ r __ e_ .. 0 .•.•..•. --·--------------------·---·--····-··-·····-···-----···· . .. ········-----·····------<..+.oo!.!R.tt.'!'.J!i!!{f1!l . .fonduil_.!O be filled with Concrit.t

Contractor Desiqned ._./- 811lkllead, Guides 8 Gated Openinq ( 6 Square fee~)

Invert

5'-o"

Detail @ 6 'x 10' Conduit

All Conduit with Concrete 8 Pressure Grout.

SECTION A

~ ·= i'-0" 88

Aggregate in this Area Before Placing Plug) (Expose

10'- o• --t -~ ____ 1o:c_o·~ _ --1-1o_·-o· ____ ~-1

-I% Slape ---

ELEVATION - PLUG AREA

A- Vertical Outlet Pipes

E~==t E----~::::, ::::::

PLAN-GROUT PIPE SYSTEM

NTS

,. 6

' P. .

. . , '. 4 .

..-t···t-ot······. Vertical Outlet P1j:Je

·Centered in 2" RI Hole .•. 4

DETAIL

NTS

5'-o"

I" Return

2" Intake

AS CONSTRUCTED

CONTRACT No. Df1L4!.ff:Z=.12.2:S...:.S? .. 9J.:5:... __

AS COOSTRUCTED ORC

Lowered Deck f Revised Entrances s Added Ratin Curve

U. S. ARMY ENGINEER DISTRICT, PORTLAND

MOUNT ST. HELENS SEDIMENT CONTROL

COWLITZ ANO TOOTLE RIVERS, WASHINGTON

SEDIMENT RETENTION STRUCTURE

OUTLET WORKS CONCRETE

DIVERSION CONDUIT PLUG

-NEAL R HANSON P. E

iJiii"f', ff ... ,. ••.IOllCM

L$Jf!l.'M..Q.11. .J. T!J.il.!.!1.eL- """~!.filc!!J<l<_ I

1986 Sept 8

88 TRD-2-2/27

D c

CORPS OF ENGINEERS 4 VALUE ENGINEERING WILL INCREASE YOUR PROFITS

IV on 2H

-·"' 2Von IH

Slope -0.5% c •"' /Von 2H

---------------------1 _i~ ~-"'--'o· ..,___--'-12' -_-'--6" --~ ~ ~ ~------·-----·------------·-----.---------------·--·-··----------- .... ·-.. -·----~-----------..,,-t------t

EL.853.00 -----3

,___-~----·-!+------~-'··--"·------·-··-·"··---·--··· .. -·, .. ,,,..... H r ~f

IS IS l:i i-------'~.11..___ ___ tfi'l----i'/i-------.J~f,......--~~-----fr-- .... __ i'lil----'~l,-------.. -"J•ll.~---'"lv . ..--·--·-·AL--------1lr--------11. __________ .

Slope-10%

A 24'-0" I s·-o·

SECTION fA\ 114"=1'-o" ~

4 I i

3'-9"

SECTION@

114"=1'-o" 89

U.S. ARMY

. ).~~7{~~~:;..,>}i~~·;:~.:.:-- cl. VOrtl!!S

": ..... :.·:.:~ . . : El.838.50

-l ~ 5'-.9.

"·~/;·:-~2 2[(.:.:.

·~. a~~ ll~OO .... 1.:.--- i/-'--~

":·:~~(:· :<,:y:i ~/.<'.~.. . ·.:: .. :fn.8:18.5~- 1- '7!..9" I

SECTION G.

1/4"=1'-o" a 9

/2\ 90AUGOI AS aJNSTRUCTEO If\ 87Febl7 Revised Low Flow Channel Slope -

U. S. ARMY ENGINEER DISTRICT, PORTI.AND

MOUNT ST. HELENS SEDIMENT CONTROL

COWLITZ ANO TOUTLE RIVERS, WASHINGTON

SEDIMENT RETENTION STRUCTURE

OUTl.ET WORKS CONCRETE

EXIT CHANNEL LINING

DETAIL AND SECTIONS

I+-

~I-

ORC

- I._,., 1986 Oct. 30

~~-"-'-'-"-"---II 8 9 TRD-2-2/28 I """"'

INDEX

G-001 7FT RAISE DESIGN AREIAL AND KEY INDEX PLAN

G-002 7FT RAISE SURVEY NARRATIVE AND META-DATA

C-001 7FT RAISE RCC PLAN AND SECTION

C-002 7FT RAISE ROCK EXCAVATION PLAN AND SECTION

C-003 7FT RAISE STAGING AND DISPOSAL AREAS

C-004 7FT RAISE INSTRUMENTATION PLAN

D1 - GENERAL PLAN

INSTRUMENTATION AND LOCATION PLAN

TRE-1-12/2 EMBANKMENT PROFILE

TR-20-6/2 SPILLWAY OUTLET WORKS PLAN

TRD-1-5/1 LEFT WALL PROTECTION PLAN

TRD-1-5/2 LEFTWALL PROTECTION PLAN II

TRD-1-5/7 CREST PROTECTION PLAN

TRD-1-5/8 CREST PROTECTION – SECTION AND DETAILS

TRD-1-5/10 GENERAL DETAIL – NEW ACCESS ROAD DETAILS

TR-20-7/4 FOUNDATION EXPLORATION PLAN

TR-20-7/16 SPILLWAY CENTERLINE AND GEOLOGIC PROFILE

TR-20-7/17 SPILLWAY GEOLOGIC SECTIONS

TRX-5-1/46 SPILLWAY LOGS OF EXPLORATION AND PHOTOS – SHEET 8

TRX-5-1/71 SPILLWAY LOGS OF EXPLORATION AND PHOTOS – SHEET 33

TRX-5-1/93 SPILLWAY LOGS OF EXPLORATION AND PHOTOS – SHEET 55

TRX-5-1/100 SPILLWAY LOGS OF EXPLORATION AND PHOTOS – SHEET 62

TRX-5-1/113 SPILLWAY LOGS OF EXPLORATION AND PHOTOS – SHEET 75

7.Combined.pdf

TRD-2-2_11_R1

TRD-2-2_12_R1

TRD-2-2_13_R2

TRD-2-2_14_R2

TRD-2-2_15_R2

TRD-2-2_16_R2

8.Combined.pdf

TRD-2-2_19_R3

TRD-2-2_20_R2

TRD-2-2_21_R4

TRD-2-2_22_R2

TRD-2-2_23_R3

TRD-2-2_25_R2

TRD-2-2_26_R3

TRD-2-2_27_R3

TRD-2-2_28_R2

TRD-2_2_29

TRD-2-2_30

TRD-2-2_32

TRD-2-2_35

TRD-2-2_39

TRD-2-2_40

TRD-2-2_41

TRD-2-2_42

TRD-2-2_43

TRD-6-1_1

TRD-3-2_1

TRD-3-2_2

TRD-3-2_3

TRD1_1.104SRS-G002.pdf

Sheets and Views

ANSI-D

TRD1_1.104SRS-G002.pdf

Sheets and Views

ANSI-D

File details come from the government source that posted it. Updated Aug 1, 2025.