Drawings.pdf

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:09/04

SANDY BEACH ROAD CULVERT REPLACEMENT TITLE

THORNE BAY RANGER DISTRICT

AJM 6/2013

AJM 6/2013

Q. SMITH 7/3/2013

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VICINITY MAP

KEY MAP

GULF OF ALASKA

CANADA

PRINCE OF WALES

YAKUTAT SKAGWAY

JUNEAU

SITKA

KETCHIKAN

PROJECT LOCATION

SANDY BEACH ROAD

CULVERT REPLACEMENT - 2013

INDEX TO SHEETS

NO. DESCRIPTION

1 TITLE SHEET

2 EXISTING SITE PLAN

3 PROPOSED SITE PLAN

4 PROPOSED ELEVATION VIEW

5-7 BRIDGE TYPICALS

8-10 BRIDGE/APPROACH RAIL TYPICALS

THORNE

BAY

COFFMAN

COVE

RO

AD

PETERSBURG

PRINCE O

F W

ALES ISLAND

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:09/04

SANDY BEACH ROAD CULVERT REPLACEMENT EXISTING SITE PLAN ~ ROAD 3000 ~ MP 28.05

THORNE BAY RANGER DISTRICT

AJM 6/2013

AJM 6/2013

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XX/XX/XX XXXXXXXXXXXXX X.XXXXXX

XX/XX/XX XXXXXXXXXXXXX X. XXXXXX

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SCALE IN FEET

0 7.5 15 30 60

EXISTING SITE PLAN

ROAD 3000

MP 28.05

60" Ø x 60' CMP

FLOW DIRECTION

TO EOR

TO

TH

ORN

E B

AY

EXISTING OUTLET INVERT

ELEVATION: 85.0'

EXISTING INLET INVERT

ELEVATION: 89.0'

EXISTING WOODEN SLAB BRIDGE (20' x 16' WIDTH)

ATOP EXISTING ROAD FILL, USED AS

EMERGENCY REPAIR FOR FAILING CMP

EDGE ROAD

ED

GE R

OAD

CLARENCE STRAIT

(OCEAN SIDE)

STREAM

TIMBER HILLS

IDE

RO

AD

GENERAL PROJECT DISCRIPTION

1. REMOVE EXISTING CMP AND TIMBER SLAB BRIDGE.

2. EXCAVATE EXISTING ROAD FILL TO OPEN UP STREAM BED.

3. INSTALL 50' MODULAR STEEL BRIDGE WITH APPROACH RAILS.

4. CONSTRUCT NEW ROAD ALIGNMENTS ON BOTH SIDES OF BRIDGE.

CONTOUR ELEVATIONS

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:09/04

SANDY BEACH ROAD CULVERT REPLACEMENT PROPOSED SITE PLAN ~ ROAD 3000 ~ MP 28.05

THORNE BAY RANGER DISTRICT

AJM 6/2013

AJM 6/2013

X. XXXXXXXXXX XX/XX/XX

XX/XX/XX XXXXXXXXXX X. XXXXXX

XX/XX/XX XXXXXXXXXXXXX X.XXXXXX

XX/XX/XX XXXXXXXXXXXXX X. XXXXXX

ACAD.DWG

3 10

SCALE IN FEET

0 7.5 15 30 60

PROPOSED SITE PLAN

ROAD 3000

MP 28.05

FLOW DIRECTION

STREAM

TO EOR

TO

TH

ORN

E B

AY

INSTALL 50' PREFABRICATED STEEL BRIDGE WITH STEEL GUARD RAIL

ALIGN EDGE OF BRIDGE WITH EDGE OF ROAD ON THE OCEAN SIDE

CENTER BRIDGE OVER CENTER OF STREAM @ CENTER OF ROAD

EDGE ROAD

ED

GE R

OAD

SHADED AREA IS APPROXIMATE

LIMITS OF SHOTROCK FILL REMOVAL

INCLUDING UNDER BRIDGE

DEPTH OF FILL AT MIDDLE

OF ROAD IS 15' TO 18'

RO

AD

CLARENCE STRAIT

(OCEAN SIDE)

REMOVE EXISTING 60" Ø x 60' CMP

REMOVE EXISTING 20' WOODEN SLAB BRIDGE

AREA OF ROAD REALIGNMENT

IN SHADED PORTION ~ SEE TYPICAL

AREA OF ROAD REALIGNMENT

IN SHADED PORTION ~ SEE TYPICAL

NEW EDGE OF ROAD

ALIGN PARALLEL WITH BRIDGE & 2' TO SOUTH

NEW EDGE OF ROAD

NEW EDGE OF ROAD

NEW EDGE OF ROAD

ALIGN PARALLEL WITH BRIDGE & 2' TO SOUTH

ROAD REALIGNMENT

DIMENSIONS

SHADED AREA IS APPROXIMATE

LIMITS OF SHOTROCK FILL REMOVAL

DEPTH OF FILL AT MIDDLE

OF ROAD IS 15' TO 18'

MATERIAL TO BE REMOVED

CONSTRUCT NEW DITCH

(1.5' DEEP x 3' WIDE)

CONSTRUCT TO DRAIN

EXISTING EDGE

ROAD

TOP BANK

CONSTRUCT NEW ROAD ~ 2' SHOTROCK

BASE WITH 6" CRUSHED TOP COMPACTED

VARIES

NEW BANK SLOPE

1:1 (H:V)

10' CLEARING LIMITS

ROAD REALIGNMENT

TYPICAL

NTS

NOTE: IF BEDROCK IS ENCOUNTERED

ENGINEER WILL REALIGN ROAD TO MAX

WIDTH BEFORE BEDROCK. NO

BLASTING IS REQUIRED IN

PROJECT.

STREAM

NEW EDGE ROAD

REALIGNMENT 1

MIN R=200FT

REALIGNMENT 2

MIN R=200FT

STA 1+00

PC

STA 1+36

STA 2+24

END CUT

STA 2+74

PC

STA 3+14 PT

STA 3+95

STA 4+17

END CUT

BEGIN CUT

BEGIN CUT

PT

STA 2+02

INSTALL

50' PREFABRICATED STEEL BRIDGE

WITH STEEL GUARD RAIL 27" ABOVE

WEARING SURFACE & OBJECT MARKERS

INSTALL

25' APPROACH GUARD RAIL

EXISTING 60"Ø CMP

REMOVE AND DISPOSE

EXCAVATE EXISTING ROAD FILL TO

MAKE A 12' WIDE STREAMBED. EXCAVATION

DEPTH SHOULD BE TO 2' BELOW EXISTING

CMP INVERT ELEVATIONS OR TO BEDROCK.

INSTALL NEW RIPRAP (CLASS 4). WIDTH

OF MAT SHOULD BE A MINIMUM OF 30' AND A

MINIMUM THICKNESS OF 2' AND EXTEND FROM BELOW

BOTTOM OF STREAM BED TO SAME ELEVATION

OF THE SILL FOUNDATION - TYPICAL BOTH SIDES

SLOPE RIPRAP @ 1.25:1(H:V)

STREAMBED WIDTH - 12'

INSTALL BRIDGE SILL FOUNDATION IN EXISTING ROAD FILL.

BRIDGE ABUTMENTS WILL BE CONSTRUCTED SO THE TOP SURFACE

OF BRIDGE IS 0.5' ABOVE EXISTING ROAD ELEVATION AT BOTH ENDS,

THE SLOPE ON THE BRIDGE WILL BE APPROXIMATELY 3%. INSTALL A

0.5' LIFT OF CRUSHED ROCK ON THE APPROACHES TO MATCH

THE EXISTING ROAD ELEVATION. USE COMPACTED 3/4" MINUS

CRUSHED ROCK UNDER SILLS TO LEVEL FOUNDATION.

TOP OF EXISTING

GRAVEL ROAD

CONSTRUCT A LIFT 6" OF 3/4" MINUS CRUSHED ROCK THAT MATCHES EXISTING

ROAD WIDTH DRIVING SURFACE AFTER COMPLETION.

LENGTH OF LIFT WILL BE 50' FROM END OF BRIDGE.

TYPICAL BOTH SIDES. COMPACT NEW LIFTS OF CRUSHED ROCK.

INSTALL

25' APPROACH GUARD RAIL

3' MIN.

TYPICAL

SCALE

0 20 40 FEET10

NOTES:

1. CLEAN SHOTROCK EXCAVATED TO OPEN UP STREAM

MAY BE USED IN CONSTRUCTION OF BRIDGE & APPROACHES. MOST

OF THE EXCAVATED EXISTING FILL MATERIAL WILL BE HAULED OFFSITE.

2. ANY EXCESS SHOTROCK FROM THE REMOVAL OF CULVERT AND

WASTE MATERIAL FROM ROAD ALIGNMENT WILL BE STORED OR DISPOSED OF

AT A SITE WITHIN A 5 MILE RADIUS OF THE PROJECT, DESIGNATED BY THE ENGINEER.

3. THE 20' EXISTING WOODEN SLAB BRIDGE USED IN EMERGENCY REPAIR OF FAILING

CMP WILL BE CAREFULLY REMOVED AND HAULED BACK TO THE STORAGE YARD IN

THORNE BAY AT A SITE DESIGNATED BY THE ENGINEER.

REMOVE A 20' X 16' TIMBER SLAB BRIDGE THAT WAS

TEMPORARILY PLACED ATOP THE ROAD FILL OVER THE EXISTING

CMP FOR EMERGENCY REPAIR OF THE FAILING EXISTING CMP.

SEE NOTE 3.

CURVED ALIGNMENT CURVED ALIGNMENT

PROPOSED ELEVATION VIEW

BRIDGE @ MP 28.05

ROAD 3000

USDA FOREST SERVICE - TONGASS NATIONAL FOREST SH. ofR-10 -

DESIGNED: DATE:

DATE:DRAWN:

REVIEWED: DATE:

DATE: REVISION: BY:

PLOT ON 11"X17" PAPER

TONGASS

ENGINEERING & RECREATION TNFTYP:09/04

SANDY BEACH ROAD CULVERT REPLACEMENT PROPOSED ELEVATION VIEW ~ MP 28.05-RD 3000

THORNE BAY RANGER DISTRICT

AJM 6/2013

AJM 6/2013

4 10

FISH TIMING WINDOW FOR

CONSTRUCTION

PREFERRED CONSTRUCTION OF

THE BRIDGE IS LIMITED TO A

WINDOW OF TIME BETWEEN

JUNE 15 & AUGUST 15. REQUEST

FOR DIFFERENT TIMING MAY BE

SUBMITTED TO THE C.O. FOR

APPROVAL

ESTIMATED QUANTITIES

> SHOTROCK EXCAVATION & REMOVAL

TO OPEN STREAM ~ 550 CY

> RIPRAP ~ 80 CY

> CRUSHED ROCK FOR NEW

APPROACHES ~ 60 CY

> SITE EXCAVATION ~440 CY

rburke Typewritten Text rburke Typewritten Text rburke Text Box rburke Sticky Note Accepted set by rburke rburke Sticky Note None set by rburke rburke Sticky Note Unmarked set by rburke rburke Typewritten Text rburke Typewritten Text rburke Typewritten Text rburke Text Box rburke Text Box ajmurph Typewritten Text ajmurph Text Box

SANDY BEACH ROAD CULVERT REPLACEMENT

mdorgan Typewritten Text Rail to be 27" above wearing surface

Text Box ajmurph

SANDY BEACH ROAD CULVERT REPLACEMENT

ajmurph ajmurph ajmurph ajmurph ajmurph