W9127N23R0031 Plans and Drawings.pdf

PDF 16 MB Posted Jul 18, 2023

Attached to: Hills Creek Dam Spillway Rockfall & Reinforcement
Solicitation number: W9127N23R0031
Issued by: Department of the Army Corps of Engineers Engineering District Portland

About this file

Written by GovTribe AI · Dec 20, 2023

This file provides plans and drawings related to a federal solicitation for the Hills Creek Dam Spillway Rockfall & Reinforcement project. The solicitation number is W9127N23R0031 and was issued by the Department of the Army Corps of Engineers Engineering District Portland to solicit proposals for rockfall mitigation and spillway reinforcement work at Hills Creek Dam. Responses are due based on the solicitation schedule, with award anticipated after evaluation. The required work includes construction services to reinforce structures and mitigate rockfall hazards, as detailed in the associated plans and drawings, in support of dam infrastructure improvements.

View the file

Other files

File	Type	Posted
Amend 0002 W9127N23R0031.pdf	PDF	Aug 8, 2023
Final Bidder Inquiry Responses 8.8.23.pdf	PDF	Aug 8, 2023
AMND_0002 Spec 31 68 13.00 25.pdf	PDF	Aug 8, 2023
Site Visit Roster Hill Creek RR 7.24.23.pdf	PDF	Aug 1, 2023
Amend 0001 W9127N23R0031.pdf	PDF	Aug 1, 2023
Solicitation W9127N23R0031 Hill Creek RR.pdf	PDF	Jul 12, 2023
Attach A - Offerors Experience Form.pdf	PDF	Jul 12, 2023
Attach B - Past Performance Questionnaire .pdf	PDF	Jul 12, 2023

On GovTribe

Work with this file

Download the original file
Contacts named in this file
Similar government files
Ask GovTribe AI about this file

Try for free Login

Text version

The file's text, extracted by GovTribe without its formatting.

PATRICK L. DUYCK, P.E.

CHIEF, DESIGN BRANCH CHIEF, ENGINEERING & CONSTRUCTION DIVISION

SOLICITATION NUMBER: W9127N23R0031

DATE:

DISTRICT COMMANDER

COLONEL, CORPS OF ENGINEERS

US Army Corps of Engineers Portland District

THIS PROJECT WAS DESIGNED BY THE PORTLAND

DISTRICT OF THE U.S. ARMY CORPS OF ENGINEERS.

THE INITIALS OR SIGNATURES AND REGISTRATION

DESIGNATIONS OF INDIVIDUALS APPEAR ON THESE

PROJECT DOCUMENTS WITHIN THE SCOPE OF THEIR

EMPLOYMENT AS REQUIRED BY ER 1110-1-8152.

MICHAEL D. HELTON, PMP

MARK J. SAWKA, P.E.

HILLS CREEK DAM AND RESERVOIR

ROCK REMOVAL

AND REINFORCEMENT

G 2E

C C

Fi le

L as t S av ed B y:

N N

D R

B Y:

C H

D B

N U

D B

T D

C O

N O

SHEET

IDENTIFICATION

1 2 3 4 5 6

C R

O N

K D

US Army Corps of Engineers ®

SHEET OF

G-002

K D

N D

O C

K R

R C

, P .E

/0 5/

T, P .E

PORTLAND DISTRICT

U .S

. A R

M Y

C O

O F

R S

D D

D , O

O N

-1 .1

-0

.d w g

SITE VICINITY MAPSITE LOCATION MAP

GOOGLE

HILLS CREEK ROAD

PROJECT SITE

NF-21

US FOREST SERVICE RD 21

NF-23

GOOGLE

WILLAMETTE HWY (58)

PROJECT SITE

SITE ACCESS ROUTE

SCALE: NTS SCALE: NTS

C C

Fi le

L as t S av ed B y:

N N

D R

B Y:

C H

D B

N U

D B

T D

C O

N O

SHEET

IDENTIFICATION

1 2 3 4 5 6

C R

O N

K D

US Army Corps of Engineers ®

SHEET OF

G-003

K D

N D

O C

K R

R C

D R

, S U

Y N

E, LE

D , S

, A

N D

O N

, P .E

/0 5/

T, P .E

PORTLAND DISTRICT

U .S

. A R

M Y

C O

O F

R S

D D

D , O

O N

-1 .1

-0

.d w g

SHEET

NO. DRAWING NAME ACTION CODE

GENERAL

G-001 COVER SHEET 2

G-002 SITE MAPS 2

G-003 DRAWING INDEX, SURVEY NARRATIVE, LEGEND, SYMBOLS, AND

ABBREVIATIONS 2

CIVIL

C-101 CONCEPTUAL PLAN 2

C-102 CONCEPTUAL PLAN AND PROFILE 2

C-301 TYPICAL SECTIONS 2

GEOTECHNICAL

B-101 SPILLWAY PLAN 2

B-102 SPILLWAY PROFILE 2

B-301 SPILLWAY CROSS SECTIONS - STA. 0+00 AND 0+55 2

B-302 SPILLWAY CROSS SECTIONS - STA. 1+05, 1+75, AND 2+75 2

B-501 ROCK REINFORCEMENT DETAIL 2

STRUCTURAL

S-501 CONCRETE REHABILITATION DETAILS 2

INFORMATIONAL

HLD-2-7 SPILLWAY DAM CHUTE PLAN & SECTIONS 5

HLD-2-8 SPILLWAY DAM CHUTE DETAILS 5

1. SHEET ACTION NUMBER IDENTIFICATION KEY SHALL BE AS SHOWN BELOW:

1 DENOTES FIO DRAWING IS OBSOLETE AT THE

COMPLETION OF THIS CONTRACT

2 DENOTES DRAWINGS MUST BE UPDATED AT THE

COMPLETION OF THIS CONTRACT

3 DENOTES FIO DRAWING WILL BE SUPERCEDED BY

THE FOLLOWING DRAWINGS AT THE COMPLETION

OF THIS CONTRACT

4 DENOTES FIO DRAWING WAS REFERENCED BY THE

FOLLOWING CONTRACT DRAWINGS

5 DENOTES FIO DRAWING IS FOR REFERENCE ONLY

2. FIO DENOTES "FOR INFORMATION ONLY"

ACTION CODE KEY

MAJOR CONTOUR (EXISTING)

MINOR CONTOUR (EXISTING)

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

CMP CORRUGATED METAL PIPE

COR CONTRACTING OFFICER'S REPRESENTATIVE

CY CUBIC YARD

E EASTING

EG EXISTING GRADE

EL ELEVATION

EM ENGINEERING MANUAL

FT FEET

G.C.A GRADED CRUSHED AGGREGATE

H HORIZONTAL

HWY HIGHWAY

KO CONTRACTING OFFICER

L LENGTH

LVC LENGTH OF VERTICAL CURVE

MIN MINIMUM

NTS NOT TO SCALE

NAVD88 NORTH AMERICAN VERTICAL DATUM OF 1988

NAD83 NORTH AMERICAN DATUM OF 1983

N NORTHING

PC POINT OF CURVATURE

PT POINT OF TANGENCY

PVI POINT OF VERTICAL INTERSECTION

R RADIUS

STA STATION

TYP TYPICAL

V VERTICAL

W/ WITH

ABBREVIATIONSGENERAL LEGEND

DRAWING INDEX

ANCHORED MESH LIMITS

DEBRIS REMOVAL AREA

LIMITS OF DISTURBANCE

E E E ELECTRICAL CONDUIT

SURVEY NARRATIVE AND METADATA

DRAPED MESH LIMITS

SF SF SILT FENCE

1) DATA SOURCES

A 3FT-SORTED MULTIPOINT DATASET WAS EXPORTED FROM A DIGITAL

ELEVATION MODEL AND WAS USED TO GENERATE AN XYZ POINT FILE

FOR HILLS CREEK SPILLWAY ROCK REMOVAL AND REINFORCEMENT.

THE ELEVATION MODEL WAS FROM 2013-2014 LIDAR MERGED WITH 2015

BATHYMETRY AT HILLS CREEK DAM WHICH WAS USED FOR VOLUME

CALCULATIONS AND PROJECT MAPPING.

2) DATUMS

HORIZONTAL COORDINATE SYSTEMS:

STATE PLANE OREGON SOUTH FIPS 3602

NORTH AMERICAN DATUM OF 1983, 2011 ADJUSTMENT (NAD83 (2011))

UNITS: INTERNATIONAL FEET

VERTICAL DATUM:

NORTH AMERICAN VERTICAL DATUM OF 1988 (NAVD88 (GEOID 12B))

VERTICAL DATUM CONVERSIONS:

HILLS CREEK PROJECT ELEVATION + 3.82' = NAVD88 ELEVATION

3) SURVEY METHODOLOGY

LIDAR: WATERSHED SCIENCES, INC. (WSI) COLLECTED LIGHT DETECTION

AND RANGING (LIDAR) DATA IN THE LANE COUNTY 2013/2014 STUDY

AREA FOR THE OREGON DEPARTMENT OF GEOLOGY AND MINERAL

INDUSTRIES (DOGAMI).

A 3-FOOT BARE EARTH DEM WAS DERIVED FROM LIDAR DATA USING TIN

PROCESSING OF THE GROUND POINT RETURNS.

BATHYMETRY: MULTIBEAM BATHYMETRY, SORTED TO A 5-FOOT POINT

GRID. COLLECTED IN HILLS CREEK LAKE ON 10 JUNE 2015 BY U.S. ARMY

CORPS OF ENGINEERS, PORTLAND DISTRICT SURVEY SECTION

(CENWP-OD-NWH).

OPTIONAL ANCHORED MESH LIMITS

OP OP OP HIGH VOLTAGE TRANSMISSION LINES

STAGING AREA

X X

X X X X X X X X

X X

XXXX

X X

E E

E E E E

O P

0+00

0+50

1+00

1+50

2+00

2+50

3+00

3+50

4+00

4+50

8+50

10+50

11+00 11+25

1260 1270

G 2E

C C

Fi le

L as t S av ed B y:

FLOW

030' 30'

POWERHOUSE

GATE

SPILLWAY

NF-23

CONCEPTUAL PLAN

NOTES:

1. THE SPILLWAY ACCESS DESIGN ILLUSTRATED IN THE CIVIL SHEETS OF THESE

PLANS REPRESENTS AN EXAMPLE OF A CONCEPTUAL DESIGN FOR ACCESS TO THE

SPILLWAY. ALL ACCESS TO BE DESIGNED BY CONTRACTOR. SEE SPECIFICATION

SECTION 01 10 10.00 25, CONTRACTOR'S OPERATIONS AND REQUIREMENTS, FOR

SPILLWAY ACCESS AND WORK PLAN SUBMITTAL REQUIREMENTS.

2. REFER TO SPECIFICATION SECTION 01 57 00.00 25, TEMPORARY ENVIRONMENTAL

CONTROLS REGARDING STORM WATER POLLUTION PREVENTION MEASURES.

3. THE CONTRACTOR MAY REMOVE AND REPLACE FENCE AS NEEDED FOR

CONSTRUCTION ACCESS. IF CONTRACTOR CHOOSES TO REMOVE FENCING AROUND

THE POWERHOUSE, INSTALL TEMPORARY SECURITY FENCING AND/OR LOCKED

GATE ACCESS TO PROVIDE PHYSICAL SECURITY TO FACILITY THROUGHOUT

ENTIRETY OF PROJECT. SECURITY FENCE SHALL BE REPLACED IN KIND TO AN

EQUAL OR GREATER CONDITION FOLLOWING CONSTRUCTION. PROVIDE DETAILS

FOR TEMPORARY SECURITY FENCING AND REPLACEMENT FENCING IN SPILLWAY

ACCESS AND WORK PLAN.

4. PROTECT ASPHALT FROM DAMAGE. REPAIR ASPHALT TO THE SAME CONDITION OR

BETTER THAN ITS CURRENT EXISTING STATE AT END OF PROJECT. CORRECT

DEFECTIVE AREAS BY MILLING, SAW-CUTTING, OR GRINDING.

5. REMOVE ALL DEBRIS, ROCK, AND VEGETATION DOWN TO CONCRETE AND CLEAN

FOR INSPECTION. REPAIR CONCRETE DAMAGE AS DIRECTED BY THE COR. SUBMIT

PATCH PRODUCT DATA SUBMITTAL AT LEAST 21 DAYS PRIOR TO INTENDED USE.

6. REMOVE ALL IMPORTED MATERIAL FROM SITE PRIOR TO END OF WORK. NO

IMPORTED ROCK, CULVERT, GEOTEXTILE, OR OTHER CONSTRUCTION MATERIALS

ARE TO REMAIN ON SITE POST PROJECT COMPLETION.

7. MAINTAIN SAFE WORKING DISTANCE FROM HIGH VOLTAGE ELECTRICAL HAZARD IN

ACCORDANCE WITH EM 385-1-1.

8. PROTECT EXISTING BURIED ELECTRICAL CONDUIT. SEE SPECIFICATION SECTION 01

10 10.00 25, 1.23.

STAGING AREA

APPROX. 0.7 ACRE

N N

D R

B Y:

C H

D B

N U

D B

T D

C O

N O

SHEET

IDENTIFICATION

1 2 3 4 5 6

C R

O N

K D

US Army Corps of Engineers ®

C-101

K D

N D

O C

K R

R C

C O

N C

, P .E

/0 5/

N W

T, P .E

PORTLAND DISTRICT

U .S

. A R

M Y

C O

O F

R S

D D

D , O

O N

-1 .1

-1

.d w g

DEBRIS REMOVAL AREA

SEE NOTE #5

CULVERT

STEEL FENCE

SEE NOTE #1

SEPARATION FABRIC UNDER ROCK

TO PROTECT ASPHALT SURFACE.

SEE NOTE #2

BURIED ELECTRICAL

CONDUIT.

SEE NOTE #8

LIMITS OF DISTURBANCE

CONTRACTOR-DESIGNED

RIPRAP ENERGY DISSIPATER

CULVERT WITH ANCHORED

DOWNSPOUT SECTION

INSTALL SILT FENCE

SEPTIC FIELD

ACCESS PROHIBITED

UNDERGROUND UTILITIES

AND SEPTIC

CONTRACTOR-DESIGNED

RIPRAP ENERGY DISSIPATER

HIGH VOLTAGE TRANSMISSION LINES

LOCATION APPROXIMATE

HIGH VOLTAGE TRANSMISSION LINES

LOCATION APPROXIMATE

115 KV ELECTRICAL HAZARD

SEE NOTE #7

FLOW

E E

4+50

5+00

5+50 6+006+507+007+50

8+00

9+00 9+50 10+00

-0.9%

0.0

ELEVATIO

AVD

88)EL

N (N

0+000+200+400+600+801+001+201+401+601+802+002+202+402+602+803+003+203+403+603+804+004+204+404+604+805+005+205+405+605+806+006+206+21

9.9%

14.8%

1.0%

3.0%

13.5%

0.2%

6+20

G 2E

C C

Fi le

L as t S av ed B y:

CONCEPTUAL PROFILE

020' 20'

CONCEPTUAL PLAN

020' 20'

SPILLWAY

C-102

K D

N D

O C

K R

R C

C O

N C

A N

D P

R O

, P .E

/0 5/

N W

T, P .E

PORTLAND DISTRICT

U .S

. A R

M Y

C O

O F

R S

D D

D , O

O N

-1 .1

-1

.d w g

N N

D R

B Y:

C H

D B

N U

D B

T D

C O

N O

SHEET

IDENTIFICATION

1 2 3 4 5 6

C R

O N

K D

US Army Corps of Engineers ®

DEBRIS REMOVAL AREA

CRANE PAD

POWERHOUSE

STEEL FENCE

CULVERT

LIMITS OF DISTURBANCE

EXISTING ELECTRICAL

CONDUIT. PROTECT FROM

DAMAGE.

CONTRACTOR-DESIGNED

RIPRAP ENERGY DISSIPATER

CULVERT WITH ANCHORED

DOWNSPOUT SECTION

CULVERT WITH ANCHORED

DOWNSPOUT SECTION

NOTES:

1. DESIGN AND BUILD ROAD AND CRANE PAD SUFFICIENT TO SAFELY SUPPORT CONTRACTOR'S

EQUIPMENT.

2. PIPES DRAWN FOR ILLUSTRATION PURPOSES ONLY. CONTRACTOR SHALL BE RESPONSIBLE FOR

SIZING DIVERSION PIPES. SUBMIT PE STAMPED ENGINEERING CALCULATIONS FOR SIZING OF

THE PIPES TO THE CONTRACTING OFFICER FOR APPROVAL. SUBMIT CALCULATIONS FOR NO

LESS THAN A 10 YEAR DESIGN STORM.

3. THE CONTRACTOR IS RESPONSIBLE FOR THE INSTALLATION AND INTEGRITY OF ALL CULVERTS.

4. ENERGY DISSIPATER ROCK PADS SHALL BE DEVELOPED BY THE CONTRACTOR AND APPROVED

BY THE CONTRACTING OFFICER. DISSIPATER SHALL BE PROPERLY SIZED TO PREVENT EROSION

AND RIPRAP USED PROPERLY SIZED TO PREVENT MOVEMENT.

5. MAX DESIGN ROAD GRADE: 15%. MAX SUPERELEVATION: 6%.

6. MAINTAIN ROAD IN SAFE CONDITION DURING CONSTRUCTION PER REQUIREMENTS IN EM 385-1-1.

CONTRACTOR-DESIGNED

RIPRAP ENERGY DISSIPATER

C-301

C C

Fi le

L as t S av ed B y:

N N

D R

B Y:

C H

D B

N U

D B

T D

C O

N O

SHEET

IDENTIFICATION

1 2 3 4 5 6

C R

O N

K D

US Army Corps of Engineers ®

SHEET OF

C-301

K D

N D

O C

K R

R C

N S

, P .E

/0 5/

N W

T, P .E

PORTLAND DISTRICT

U .S

. A R

M Y

C O

O F

R S

D D

D , O

O N

-1 .1

-3

.d w g

CULVERT

RECOMMEND PLACEMENT OF SELECT

GRANULAR FILL MATERIAL BETWEEN

SUBGRADE AND CULVERTS AS BEDDING

PRIOR TO COMPACTING UPPER LAYERS.

NOTES:

1. DEWATER SITE AS NECESSARY TO CONSTRUCT FILL PER

SPECIFICATIONS FOUND IN SECTION 31 00 00.00 25, EARTHWORK.

2. LENGTH OF PIPE TO BE FIELD VERIFIED PRIOR TO INSTALLATION.

TYPICAL ROADWAY SECTION

SCALE: NTSB

SECTION

SCALE: NTSAN

SURFACE COURSE

BACKFILL EMBANKMENT

CULVERT

SURFACE COURSE

CONTRACTOR DESIGNED

RIPRAP ENERGY DISSIPATER

2' MIN.

PLAN

SCALE: NTSC-102

0+00 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00

G 2E

C C

Fi le

L as t S av ed B y:

SPILLWAY PLANN

20' 0 20'

HILLS CREEK ROAD

SPILLWAY

N N

D R

B Y:

C H

D B

N U

D B

T D

C O

N O

SHEET

IDENTIFICATION

1 2 3 4 5 6

C R

O N

K D

US Army Corps of Engineers ®

B-101

K D

N D

O C

K R

R C

J O

, P .G

/0 5/

N . B

T, P .E

PORTLAND DISTRICT

U .S

. A R

M Y

C O

O F

R S

D D

D , O

O N

-1 .1

-1

.d w g

ANCHORED

MESH LIMITS

DRAPED MESH LIMITS

OPTIONAL ANCHORED

MESH

OPTIONAL ANCHORED

MESH

STAGING AREA

SEE NOTE #1

NOTES:

1. MAINTAIN ONE-LANE ACCESS TO FACILITY FOR

GOVERNMENT PERSONNEL AT ALL TIMES.

DO NOT BLOCK ENTRANCE OR EXIT

/2 g2ecdjsa Callout

ANCHORED MESH - MANDATORY

N (N

-0+40 -0+20 0+00 0+20 0+40 0+60 0+80 1+00 1+20 1+40 1+60 1+80 2+00 2+20 2+40 2+60 2+80 3+00 3+20 3+40 3+60 3+80 4+00 4+20 4+40 4+60 4+80

G 2E

C C

Fi le

L as t S av ed B y:

SPILLWAY PROFILE

20' 0 20'

N N

D R

B Y:

C H

D B

N U

D B

T D

C O

N O

SHEET

IDENTIFICATION

1 2 3 4 5 6

C R

O N

K D

US Army Corps of Engineers ®

B-102

K D

N D

O C

K R

R C

P R

J O

, P .G

/0 5/

N W

T, P .E

PORTLAND DISTRICT

U .S

. A R

M Y

C O

O F

R S

D D

D , O

O N

-1 .1

-1

.d w g

EXISTING GRADE

N (F

T, N

N (F

T, N

DISTANCE FROM CENTERLINE (FT)

020406080100120140

N (F

T, N

N (F

T, N

DISTANCE FROM CENTERLINE (FT)

020406080100120140160180200220240260280

G 2E

C C

Fi le

L as t S av ed B y:

20' 0 20'

HORIZONTAL SCALE: 1" = 20'

VERTICAL SCALE: 1" = 20'

20' 0 20'

HORIZONTAL SCALE: 1" = 20'

VERTICAL SCALE: 1" = 20'

B-301

K D

N D

O C

K R

R C

C R

N S

A N

J O

, P .G

/0 5/

N . B

T, P .E

PORTLAND DISTRICT

U .S

. A R

M Y

C O

O F

R S

D D

D , O

O N

-1 .1

-3

.d w g

N N

D R

B Y:

C H

D B

N U

D B

T D

C O

N O

SHEET

IDENTIFICATION

1 2 3 4 5 6

C R

O N

K D

US Army Corps of Engineers ®

3EXISTING GRADE

EXISTING GRADE

SECTION 0+55SECTION 0+00

N (F

T, N

DISTANCE FROM CENTERLINE (FT)

020406080100120140160180200220

N (F

T, N

DISTANCE FROM CENTERLINE (FT)

020406080100120140160180

N (F

T, N

DISTANCE FROM CENTERLINE (FT)

020406080100120

G 2E

C C

Fi le

L as t S av ed B y:

20' 0 20'

HORIZONTAL SCALE: 1" = 20'

VERTICAL SCALE: 1" = 20'

20' 0 20'

HORIZONTAL SCALE: 1" = 20'

VERTICAL SCALE: 1" = 20'

20' 0 20'

HORIZONTAL SCALE: 1" = 20'

VERTICAL SCALE: 1" = 20'

N N

D R

B Y:

C H

D B

N U

D B

T D

C O

N O

SHEET

IDENTIFICATION

1 2 3 4 5 6

C R

O N

K D

US Army Corps of Engineers ®

B-302

K D

N D

O C

K R

R C

C R

N S

5, +7 5, A N

J O

, P .G

/0 5/

N . B

T, P .E

PORTLAND DISTRICT

U .S

. A R

M Y

C O

O F

R S

D D

D , O

O N

-1 .1

-3

.d w g

EXISTING GRADE

SECTION 1+05

EXISTING GRADE

SECTION 1+75 SECTION 2+75

ANCHORED ROCKFALL MESH

HEXAGONAL HOT-DIPPED

GALVANIZED NUT AND HARDENED

WASHER

#10 (1-1/4"DIAMETER)

GRADE 75 BOLTS @ 8' O.C.

EACH WAY WITH

STAGGERING

PATTERN (SEE

ANCHOR SCHEDULE)

EPOXY COATED GRADE 75

THREADED BAR #10 (1-1/4" DIAMETER)

BEARING PLATE

MIN. 12" x 12" x 1"

GALVANIZED STEEL

ANCHORED MESH

NTS

ANCHORED ROCKFALL MESH

UNBONDED LENGTH

ANCHOR EMBEDMENT LENGTH (SEE ANCHOR SCHEDULE)

CEMENT GROUT NON-SHRINK 4,000 PSI MIN 3-DAY

COMPRESSIVE STRENGTH

SLOPE BREAK

5' -0

EXTEND MESH 5'

BEYOND SLOPE BREAK

WIRE ROPE ANCHOR OFFSET 2'-0"

WIRE ROPE ANCHOR

0.75-INCH, EMBEDDED 8 FEET

INTO ROCK, 20-FT SPACING

8' ANCHOR SPACING

DRAIN HOLE 25-FOOT DEPTH,

MINIUMUM 3-INCH DIAMETER

DRILLED 5 DEGREES ABOVE

HORIZONTAL. 16' VERTICAL X

16' HORIZONTAL SPACING

BOUNDARY ROPE 0.75-INCH

MINIMUM DIAMETER

EXCAVATE ROCK FACE OR INSTALL CONCRETE

BEARING PADS TO FACILITATE PRE-STRESSING

PLASTIC END CAP

6"MAX

2-INCH DIA SCHEDULE 80 SLOTTED

PVC PIPE

INSTALL ANNULAR PLUG

AND CENTER PVC PIPE IN

TOP 6 INCHES OF BORING

WITH DRY-PACKED,

NON-SHRINK GROUT

BORING DRILLED AT 5 DEG

ABOVE HORIZONTAL

3-INCH DIA. BOREHOLE

(MINIMUM)

CENTRALIZERS (SEE NOTE 5)

DRAPED ROCKFALL MESH

DRAPED MESH

NTS

WIRE ROPE ANCHOR OFFSET 2'-0"

WIRE ROPE ANCHOR

0.75-INCH, EMBEDDED 8 FEET

INTO ROCK, 20-FT SPACING

BOUNDARY ROPE 0.75-INCH

MINIMUM DIAMETER

MESH SPIKE PLATE AND HEX NUT

8' V

G 2E

C C

Fi le

L as t S av ed B y:

N N

D R

B Y:

C H

D B

N U

D B

T D

C O

N O

SHEET

IDENTIFICATION

1 2 3 4 5 6

C R

O N

K D

US Army Corps of Engineers ®

B-501

K D

N D

O C

K R

R C

R O

C K

R C

T D

J O

, P .G

/0 5/

N . B

T, P .E

PORTLAND DISTRICT

U .S

. A R

M Y

C O

O F

R S

D D

D , O

O N

-1 .1

-5

.d w g

DRAIN HOLE INSTALLATION DETAILS

SCALE: NTS-

ROCK ANCHOR INSTALLATION DETAILS

SCALE: NTS-

NOTES:

1. REFER TO SHEET B-101 FOR APPROXIMATE LOCATION AND LIMITS OF ROCK SUPPORT.

2. REFER TO SECTION 31 68 13.00 25 FOR INSTALLATION OF ROCK STABILIZATION.

3. INSTALLATION OF ROCKFALL MESH AND ANCHORS TO BE DONE IN ACCORDANCE WITH

MANUFACTURER'S RECOMMENDATIONS.

4. ROCKFALL MESH MUST BE INSTALLED IN VERTICAL ROLLS WITH MINIMUM OVERLAP AND

FASTENERS AS RECOMMENDED BY THE MANUFACTURER.

5. INSTALL CENTRALIZERS AT DEPTHS OF 2, 10, AND 20 FEET.

L S

C R

E E

K D

A M

A N

D R

E S

E R

V O

CONCRETE

FILL FLUSH WITH 5000 PSI

PLACING CONCRETE (TYP.)

CLEAN SURFACE PRIOR TO

TO SOUND SUBSTATE

CHIP UNSOUND CONCRETE

U .S

R M

Y C

O R

P S

O F

E N

E E

R S

P O

R T

L A

N D

R E

G O

P O

R T

L A

N D

T R

PORTLAND DISTRICT

M A

T T

H E

W H

A N

S O

N P

A N

S I

S-501

A D

V E

R T

A N

D R

F O

R C

E M

E N

T R

O C

K R

E M

O V

A L

W N

(SEE NOTE 1)

OUTLINE OF REPAIRED SECTION

(SEE NOTE 1)

DELAMINATED (HOLLOW) CONCRETE

OUTLINE OF SPALLED OR

SAWCUT

EXISTING CONCRETE

UNSOUND CONCRETE

REMOVE ALL LOOSE AND

U N

S O

U N

D C

O N

C R

E T

E R

E M

O V

E A

L L

L O

O S

E A

D CONCRETE

FILL FLUSH WITH 5000 PSI

SOUND SUBSTRATE

CONCRETE TO

CHIP UNSOUND

NEW CONCRETE (TYP.)

PRIOR TO PLACING

CLEAN SURFACES

EXISTING CONCRETE

REINFORCEMENT

EXISTING

OF REPAIR AREA (SEE NOTE 3)

SAWCUT AROUND PERIMETER

OF REPAIR AREA (SEE NOTE 3)

SAWCUT AROUND PERIMETER

(SEE NOTE 6)

MAXIMUM, (MIN. OF 2 BOLTS)

NUTS SPACED AT 6"x6" GRID

3/8" DIA. EXP. ANCHORS WITH

4X4-W1 .4XW1.4 SECURED BY

PROVIDE WELDED WIRE FABRIC

D E

E P

E R

T H

A N

TO REMAIN (SEE NOTES 4 AND 5)

EXISTING REINFORCEMENT

D E

T A

S U

R R

A T

H A

E L

C A

R L

H L

D -1

S -5

.d g n

R O

S H

A N

E M

B E

D M

E N

T Y

S E

E N

O T

DRAWING PLOT SIZE: $BORDER$

S O

N N

E N

A M

D W

N B

C K

D B

D E

N E

D B

D A

T E

E N

U M

B E

S I Z

S U

B M

E D

B Y

P L

O T

S C

A L

E P

L O

T D

A T

C O

N T

R A

C T

N O

IDENTIFICATION

SHEET

1 2 3 4 5 6

S C

N M

A R

K D

A T

E A

P P

R of Engineers

US Army Corps

BORDER VERSION UPDATE [12-2015]

$SHEETN$SHEET NAME:$USER$BY USERNAME:DATE AND TIME PLOTTED: $$$DATE$$$$ $TIME

A T

CONCRETE REPAIR NOTES:

TO MATCH EXISTING, AND PER PROJECT SPECIFICATIONS.

10. IF REPAIRS CROSS EXISTING JOINTS, REPLACE JOINT MATERIAL IN-KIND PER INFORMATIONAL DRAWINGS. PLACE NEW JOINT

9. REMOVE CONCRETE TO LARGER OF: 3/4" MIN. OR 0.5 BAR DIAMETER MIN., AROUND EXPOSED REINFORCEMENT.

TO PROJECT SPECIFICATIONS.

8. CONSTRUCTION, EQUIPMENT, SURFACE PREPARATION, AND PATCHING MATERIAL FOR CONCRETE REPAIR ARE TO CONFORM

CONDITION, IN ACCORDANCE WITH PROJECT SPECIFICATIONS. PLACE NEW CONCRETE WHEN BONDING COAT IS STILL WET.

7. APPLY A BONDING COAT WITH A THICKNESS OF 1/8" AFTER PREPARATION OF EXISTING CONCRETE TO SATURATED SURFACE DRY

6. PROVIDE GALVANIZED WELDED WIRE FABRIC AND GALVANIZED ANCHORS INTO SOUND CONCRETE FOR METHOD 2 REPAIR.

AND COAT WITH AN APPROVED GALVANIZED PAINT OR GALVANIZED COATING.

5. CLEAN ALL EXPOSED EXISTING REINFORCEMENT BARS TO BE RETAINED WITH A WIRE BRUSH OR SAND BLAST, STRAIGHTEN

CONCRETE", ACI 318-19.

AREA. PROVIDE SPLICE LENGTHS PER AMERICAN CONCRETE INSTITUTE "BUILDING CODE REQUIREMENTS FOR STRUCTURAL

SPACING. PROVIDE SUPPLEMENT REINFORCING ADJACENT TO EXISTING REINFORCEMENT FOR FULL LENGTH OF REPAIR

SECTION > 33% ). CLEAN EXISTING REINFORCEMENT AND SUPPLEMENT WITH NEW REINFORCING STEEL OF SAME SIZE AND

4. AT LOCATIONS WHERE EXPOSED EXISTING REINFORCING STEEL IS SEVERELY CORRODED OR DAMAGED (LOSS OF CROSS

CONCRETE/MORTAR. ROUGHEN SURFACE OF EXISTING SUBSTRATE TO 1/4" AMPLITUDE PRIOR TO PLACEMENT OF NEW CONCRETE.

MANUFACTURER RECOMMENDATIONS. COR MUST VERIFY SUBSTRATE PREPARATION PRIOR TO PLACEMENT OF NEW

CONCRETE TO SOUND SUBSTRATE. PREPARE CONCRETE SUBSTRATE PER PROJECT SPECIFICATIONS, AND PER

USE A MAXIMUM 28LB SIZE PNEUMATIC HAMMER OR OTHER APPROVED METHOD FOR CONCRETE REMOVAL. REMOVE ALL

3. SAWCUT AROUND PERIMETER OF SPALLED/DETERIORATED CONCRETE. DO NOT CUT THROUGH EXISTING REINFORCEMENT.

2. FOR DETAILS OF EXISTING CONCRETE SLAB AND WALLS SEE INFORMATIONAL DRAWINGS HLD-2-7 AND HLD-2-8.

METHOD 2 FOR DAMAGE THAT IS DEEPER THAN 2" DEPTH.

ACCORDANCE WITH PROJECT SPECIFICATIONS. METHOD 1 REPAIR IS TO BE USED FOR CONCRETE DAMAGE UP TO 2" DEPTH, SPALLED AND/OR DETERIORATED CONCRETE. REPAIR IDENTIFIED CONCRETE AREAS PER DETAILS ON THIS SHEET, AND IN

PART OF THIS CONTRACT AND MARK AREAS TO REPAIR WITH APPROVAL OF COR. REPAIR CONCRETE AREAS THAT HAVE

1. IN THE PRESENCE OF THE COR, INSPECT EXISTING CONCRETE UNDER AREAS THAT ARE CLEARED AND/OR GRUBBED AS

N.T.S.

PLAN OR ELEVATION

REPAIR CONCRETE PER METHOD 2)

ENCOUNTERED

(IF REINFORCING STEEL IS

SHALLOW SPALL (2" MAX DEPTH)

METHOD 1

DEPTH)

DEEP SPALL (GREATER THAN 2"

METHOD 2

	2023-07-13T09:27:13-0700
HANSON.MATTHEW.D.1231608695

	2023-07-13T10:43:18-0700
DUYCK.PATRICK.L.1242841189

File details come from the government source that posted it. Updated Jul 18, 2023.