AlaganikBoatRampRplDwg_Rev31May12.pdf

TETRA TECH EC, INC.

19803 North Creek Parkway

Bothell, WA 98011

CHUGACH NATIONAL FOREST

CORDOVA RANGER DISTRICT

ALAGANIK SLOUGH

BOAT RAMP REPLACEMENT

TITLE & INDEX SHEET

SFL

AJL/JPP

SO/REV05/31/2012

05/31/2012

05/31/2012

SHEET INDEX

NO. DESCRIPTION

PROJECT LOCATION

(~20 MILES SOUTHEAST

OF CORDOVA)

ANCHORAGE

CORDOVA

GULF OF ALASKA

ALAGANIK SLOUGH DAY USE AREA

TITLE & INDEX SHEET

EXISTING CONDITIONS PLAN

PROPOSED SITE PLAN

4 PROPOSED BOAT RAMP PROFILE

RETAINING WALL DETAILS

SCALE:1 INCH = 1.7 MILE

SIDEWALK & BOULDER DETAILS

HANDRAIL DETAILS (1)

HANDRAIL DETAILS (2)

CONCRETE BOAT RAMP PLANK DETAILS

TYPICAL RAMP SECTIONS

PLANTING DETAILS12

LOADING PLATFORM PLAN

at left

COPPER RIVER HIGHWAY

~MILE 17

MERLE K

(MUDHOLE)

SMITH AIRPORT

(CORDOVA

13-MILE)

ALAGANIK SLOUGH PETE DAHL SLOUGH

ALAGANIK SLOUGH

DAY USE AREA

ALAGANIK SLOUGH

RECREATION SITE

SURVEY REFERENCE MONUMENT (RM) CONTROL TABLE

POINT NORTHING EASTING ELEVATION DESCRIPTION BEARING & DISTANCE ROM

BASIS OF COORDS. (RM 5)

RM 1 49962.33 49962.18 57.42

2" ALCAP REFERENCE

MONUMENT ON 5

8" REBAR S45° 06' 36"W, 53.38'

RM 2 50125.89 50020.48 58.44

2" ALCAP REFERENCE

MONUMENT ON 5

8" REBAR N9°14' 32"E, 127.54'

RM 4 50171.62 50152.92 56.77

2" ALCAP REFERENCE

MONUMENT ON 5

8" REBAR

N41° 42' 09"E, 229.86'

RM 5 50000.00 50000.00 59.19 DRILLED HOLE IN BOULDER NA, BASIS OF COORDS.

TETRA TECH EC, INC.

19803 North Creek Parkway

Bothell, WA 98011

CHUGACH NATIONAL FOREST

CORDOVA RANGER DISTRICT

ALAGANIK SLOUGH

BOAT RAMP REPLACEMENT

EXISTING CONDITIONS PLAN

SFL

AJL/JPP

SO/REV05/31/2012

05/31/2012

05/31/2012

1 inch = 50 feet

GRAPHIC SCALE

NOTES:

1. THE BASIS OF BEARING FOR THIS

PROJECT IS S64°50'39" E, DIST.

10881.95, BASED ON GPS

OBSERVATIONS BETWEEN MONUMENT

POINTS 12 AND 11:

MONUMENT#11: FOUND 3-1/2" ALCAP

ON ALUMINUM ROD NEXT TO SIGN

"ALAGANIK BOAT LAUNCH SITE"

SOUTHWESTERLY OF THE INTERSECTION

OF "COPPER RIVER HIGHWAY" AND

"ALAGANIK ROAD". N 63112.965, E

41246.844, ELEVATION 101.58.

MONUMENT#12: FOUND ALCAP ON 5/8"

REBAR ON THE NORTH SIDE OF "COPPER

RIVER HIGHWAY" 100' ± SOUTH OF THE

BRIDGE OVER GLACIER RIVER. N

67738.6825, E 31396.9926, ELEVATION 96.76.

2. ELEVATIONS ARE BASED ON THE

ELLIPSOIDAL HEIGHT 28.420 (METERS,

NAD83) AT FEDERAL BASE NETWORK

CONTROL STATION FOUND AT THE MERLE

K SMITH AIRPORT (CDV) AND STAMPED

“CORD”, PID UW 8134. LOCATED AT

60°29'37.36545" (N);

145°28'31.52355" (W).

3. SURVEY DATA COLLECTED SEPTEMBER

22, 2009 to SEPTEMBER 25, 2009 BY

LARSEN CONSULTING GROUP.

4. PREDICTED 50-YR HIGH FLOW

ELEVATION IS 56.4 FT. PREDICTED 6-MO.

LOW-TIDE ELEVATION IS 47.5 FT. THESE

PREDICTIONS ARE PROVIDED FOR

INFORMATION ONLY. CONTRACTOR

SHALL VERIFY EXPECTED RANGE OF

WATER ELEVATIONS DURING PERIOD OF

CONSTRUCTION.

LEGEND:

EDGE GRAVEL SURFACE

EXISTING BOAT RAMP

(TO BE REMOVED)

VISITOR KIOSK

PIT TOILET

TRUCK & TRAILER PARKING

PICNIC AREA

CULVERTBOARDWALK TO

VIEWING PLATFORM

ALAGANIK

SLOUGH

WASTE

RECEPTACLE

APPROXIMATE TOP

OF BANK AND 50-YR

HIGH WATER ELEV.

(SEE NOTE 4.)

APPROXIMATE

BOTTOM OF BANK

TURNAROUND

AREA

TP 1 SOIL TEST PIT

LOCATIONS

PROPOSED LOCATION

OF REPLACEMENT

BOAT RAMP (SEE SHEET 3)

WOODEN

BOLLARDS

BASIS OF COORDINATES

(DRILLED HOLE IN BOULDER)

BASIS OF

COORDINATES

RM 1

RM 5

REFERENCE

MONUMENT

FACILITY ENTRANCE

(3.2 MILES TO

COPPER RIVER HIGHWAY)

(direction of flow)

APPROXIMATE

6-MO. LOW WATER

ELEVATION

(SEE NOTE 4.)

at left

1 inch = 50 feet

GRAPHIC SCALE

NOTES:

1. STRIP EXISTING VEGETATION

AND SOIL TO 6-INCHES BELOW

GROUND SURFACE IN PARKING

AREA, AND TO 8-INCH DEPTH IN

BOAT RAMP APPROACH (STA.

0+37.18 TO 0+51.18) PER

PROFILE. PLACE GEOTEXTILE

SEPARATION LAYER AND TYPE D-1

CRUSHED AGGREGATE. SHAPE

AND COMPACT NEW MATERIAL TO

MATCH EXISTING PARKING GRADE

AND PROVIDE FOR POSITIVE

DRAINAGE.

2. BOARDWALK TO BE REMOVED

AND REPLACED UNDER SEPARATE

CONTRACT. CONTRACTOR TO

COORDINATE WITH ADJACENT

WORK ACTIVITIES.

3. REMOVE, PROTECT, AND

RE-INSTALL EXISTING SIGNS AS

REQUIRED.

EDGE GRAVEL SURFACE

EXISTING VISITOR KIOSK EXISTING PIT TOILET

PICNIC AREA

TO REMAIN

BOARDWALK TO

VIEWING PLATFORM

(SEE NOTE 2)

APPROXIMATE

TOP OF BANK

APPROXIMATE

BOTTOM OF BANK

SEE NOTE 1

DISTURBED AREAS BETWEEN TOP OF

BANK AND GRAVEL LOT TO BE

REPLANTED WITH NATIVE PLANT

SPECIES (SEE DETAILS, SHEET 12)

ALAGANIK SLOUGH

0+37.18

BEGIN CONSTRUCTION

NORTHING: 50000.24

EASTING: 50076.15

LIMITS OF GRADING

AND RIPRAP

3:1 3:1

EXISTING BOAT RAMP TO BE REMOVED

UPON COMPLETION OF NEW RAMP

A

SECTION ID.

SHEET NO.

TETRA TECH EC, INC.

19803 North Creek Parkway

Bothell, WA 98011

CHUGACH NATIONAL FOREST

CORDOVA RANGER DISTRICT

ALAGANIK SLOUGH

BOAT RAMP REPLACEMENT

PROPOSED SITE PLAN

SFL

ATL/JPP

SO/REV05/31/2012

05/31/2012

05/31/2012

ACCESSIBLE

LOADING

PLATFORM

(SEE SHEET 6)

2+02.26

END CONSTRUCTION

NORTHING: 49837.84

EASTING: 50047.14

(direction of flow)

LEGEND:

POTENTIAL PICNIC SITE

(NOT IN CONTRACT)

PLACE 3'x3'x3' FLAT-BOTTOMED BOULDERS, SPACED 10' O.C. TYP., 69 TOTAL. SEE DETAIL, SHEET 8. CONTRACTING OFFICER TO APPROVE

FIELD LAYOUT PRIOR TO PLACEMENT.

PROVIDE AND INSTALL STANDARD "KEEP

RIGHT" SIGN NO. R4-7 (18"X24") & POST

BEHIND BOULDER IN ACCORDANCE WITH

2009 MANUAL ON UNIFORM TRAFFIC

CONTROL DEVICES (MUTCD).

at left

DRAINAGE ARROW

CULVERT

TO REMAIN

PROPOSED BOAT RAMP

CENTERLINE

POTENTIAL KIOSK

(NOT IN CONTRACT)

PARKING LOT HORIZONTAL CONTROL TABLE

POINT POINT DESCRIPTION NORTHING EASTING

1 MATCH 49965.31 49957.17

2 1/4 Δ 49996.55 49966.81

3 1/2 Δ 50027.10 49978.41

4 3/4 Δ 50056.86 49991.93

5 MATCH 50085.71 50007.31

6 MATCH 49983.69 50089.88

7 1/4 Δ 50018.46 50108.15

8 1/2 Δ 50059.49 50116.78

9 3/4 Δ 50101.28 50113.51

10 MATCH 50135.23 50101.37

11 TRAFFIC DIVIDER BOULDER 50129.43 50070.60

12 TRAFFIC DIVIDER BOULDER 50105.31 50052.26

13 TRAFFIC DIVIDER BOULDER 50099.11 50075.47

TYPE D-1 CRUSHED AGREGATE

PRE-CAST CONCRETE BOAT RAMP PLANKS

CONCRETE SIDEWALK

REPLANTING AREA

RIP RAP

STA0+

STA

1+

1 inch = 20 feet

NOTES:

1. SUBGRADE SHALL BE

STRIPPED OF VEGETATION

AND ORGANICS AND

EXCAVATED TO THE

DESIGN SUBGRADE.

EXPOSED SUBGRADE

SHALL BE STABILIZED WITH

GEOTEXTILE, THEN

BACKFILLED WITH ROCK

BORROW MATERIAL TO

CREATE COMPETENT

SURFACE TO ACCEPT BASE

COURSE MATERIAL.

OBTAIN CONTRACTING

OFFICER'S ACCEPTANCE

OF SUBGRADE PRIOR TO

PLACING GEOTEXTILE AND

BACKFILL MATERIAL.

SURVEY SUBGRADE AND

BACKFILL MATERIALS PER

THE SPECIFICATIONS.

ANCHOR GEOTEXTILE PER

MANUFACTURER'S

RECOMMENDATIONS.

2. LOWEST THREE PLANKS

TO BE INSTALLED AT 1

(VERT) : 3 (HORIZ) SLOPE

AND BURIED WITH RIPRAP

AS SHOWN.

LEGEND:

2X VERTICAL EXAGGERATION (1"=10')

TETRA TECH EC, INC.

19803 North Creek Parkway

Bothell, WA 98011

CHUGACH NATIONAL FOREST

CORDOVA RANGER DISTRICT

ALAGANIK SLOUGH

BOAT RAMP REPLACEMENT

PROPOSED BOAT RAMP PROFILE

SFL

AJL/JPP

SO/REV05/31/2012

05/31/2012

05/31/2012

-13.00 %

0%

LIMITS OF

GEOTEXTILE

PLACEMENT

(ALSO SEE

SHEET 5)

1 inch = 10 feet

NOTES:

1. EXPOSED SUBGRADE SHALL BE

STABILIZED WITH GEOTEXTILE AND

BACKFILLED WITH 2' MIN. LAYER ROCK

BORROW MATERIAL, COMPACTED WITH

HEAVY CONSTRUCTION EQUIPMENT TO

CREATE COMPETENT STABLE SURFACE

IF DELETERIOUS MATERIALS (EG. PEAT

OR HIGHLY ORGANIC SILT OR CLAY) ARE

EXPOSED IN SUBGRADE, THEY SHALL BE

OVER-EXCAVATED AND REPLACED WITH

COMPACTED ROCK BORROW.

2. SLOPE AREAS SHALL BE STRIPPED OF

LOOSE MATERIALS, VEGETATION AND

ORGANICS. SUBGRADE SHALL BE

STABILIZED WITH GEOTEXTILE PRIOR TO

PLACEMENT OF RIPRAP SLOPE

PROTECTION. ANCHOR GEOTEXTILE AT

TOP OF SLOPE PER MANUFACTURER'S

RECOMMENDATIONS.

3. 1'-8" LAYER BASE COURSE,

ENCAPSULATED WITH GEOTEXTILE. AT

CONTRACTING OFFICER'S DISCRETION,

THE TOP 3" OF BASE COURSE MAY BE

SUBSTITUTED WITH TYPE D-1 CRUSHED

AGGREGATE.

4. 4" LAYER GRAVEL BEDDING. NO

GEOTEXTILE ENCAPSULATION. MEET

AASHTO M80, CLASS A, SIZE NO. 57.

5. AYC = ALASKA YELLOWCEDAR GRADE

#2 OR BETTER.

LEGEND:

2X VERTICAL EXAGGERATION (1"=5')

CL

CL

NOTE: FOR DETAILS NOT

SHOWN, SEE TYPICAL

SECTION A.

1.5

TETRA TECH EC, INC.

19803 North Creek Parkway

Bothell, WA 98011

CHUGACH NATIONAL FOREST

CORDOVA RANGER DISTRICT

ALAGANIK SLOUGH

BOAT RAMP REPLACEMENT

TYPICAL RAMP SECTIONS

SFL

ALJ/JPP

SO/REV05/31/2012

05/31/2012

05/31/2012

1 inch = 10 feet at left

TETRA TECH EC, INC.

19803 North Creek Parkway

Bothell, WA 98011

CHUGACH NATIONAL FOREST

CORDOVA RANGER DISTRICT

ALAGANIK SLOUGH

BOAT RAMP REPLACEMENT

LOADING PLATFORM PLAN

SFL

AJL/JPP

SO/REV05/31/2012

05/31/2012

05/31/2012

TYPE D-1 CRUSHED AGREGATE

PRE-CAST CONCRETE BOAT RAMP PLANKS

CONCRETE SIDEWALK

LEGEND:

17'-2"

8'-10"

26'-0"

3" Ø DRAIN

HOLE AT BASE

OF STEMWALL

(SEE NOTE 1)

W A

LL

TH

IC

KN

ES

S (T

YP

HANDRAIL

SEE SHEETS 5 AND 6

FOR DETAILS

1'-4"

1'-0"

#4 @18"

EW

4'-2"

2"

CLEAR

COVER (TYP)

#4@18"

(TYP)

R=9"#4@18"

#5@18"

C

LE

A R

C O

V

ER

(T

YP

1'-10"

11"

(TYP)

#4 @ 7" (QTY 7)

RAMP

PLANK

V A

R I E

S

#5 (QTY 2)

COLD JOINT (TYP)

5'-0"

1'-0"

#4 @18"

EW

9'-8"

2"

CLEAR

COVER (TYP)

#4@18"

(TYP)

#4 @18"

R=9"

#4@18"

#5@18"

C

LE

A R

C O

V

ER

(T

YP

1'-4"

(TYP)

8"

(TYP)

#4@18"

2' LAYER

ROCK BORROW

(TYP)

V A

R I E

S

RAMP

PLANK

BASE COURSE

6" TYPE D-1

CRUSHED AGGREGATE

(TYP) SLOPE AWAY FROM

WALL

#5 (QTY 2)

NOTES:

1. INSTALL (2) 3"Ø PVC

SCHEDULE 80 PIPE, TO

CREATE DRAIN HOLE.

POSITION 3"Ø PIPE AT

BASE OF STEMWALL,

AVOIDING REBAR. COVER

INLET END W/ DOUBLE

LAYER OF GEOTEXTILE

EXTENDING MIN. 1FT IN

ALL DIRECTIONS FROM

PIPE OPENING. HOLD

GEOTEXTILE IN PLACE WITH

FREE-DRAINING BASE

COURSE.4

FOREST SERVICE

R-10

ALASKA REGION

U.S. DEPARTMENT OF AGRICULTURE

TETRA TECH EC, INC.

19803 North Creek Parkway

Bothell, WA 98011

CHUGACH NATIONAL FOREST

CORDOVA RANGER DISTRICT

ALAGANIK SLOUGH

BOAT RAMP REPLACEMENT

RETAINING WALL DETAILS

SFL

MJS/JPP

SO/REV05/31/2012

05/31/2012

05/31/2012

12at left

HANDRAIL NOT SHOWN FOR CLARITY

scale: 1/4" = 1'-0" scale: 1/4" = 1'-0" scale: 1/4" = 1'-0"

BROOMED FINISH

4" WIDE, SMOOTH

TROWELED

PERIMETER

T

O

R

EXPANSION JOINT IN

SIDEWALK (E)

CONTRACTION JOINT

IN SIDEWALK (C)

PREMOLDED

JOINT FILLER

NOTE:

1. PREMOLDED EXPANSION JOINT FILLING

TO BE PLACED BETWEEN SIDEWALK AND

TOP OF RETAINING WALL

T

O

R

6X6 -

W1.4XW1.4

6X6 -

W1.4XW1.4

M

IN

" M

IN

3'X3'X3' FLAT-BOTTOMED

BOULDER, TYP.

TYPE D-1 CRUSHED

AGGREGATE

ROAD OR PARKING

LOT SURFACING

FINISH

GRADE

10' ON CENTER

TYP.

TOP OF

PLANKS

TOP OF

RETAINING WALL

(T

YP

4"X6" AYC

RUB RAIL

3/4" CHAMFER

ALL CORNERS

HANDRAIL NOT SHOWN

FOR CLARITY

5/8" GALVANIZED

BOLT WITH NUT

AND WASHER

(SEE NOTE 3).

RUB RAIL

RUB RAIL

EPOXY ANCHOR

(SEE NOTE 2)

RETAINING

WALL

TETRA TECH EC, INC.

19803 North Creek Parkway

Bothell, WA 98011

CHUGACH NATIONAL FOREST

CORDOVA RANGER DISTRICT

ALAGANIK SLOUGH

BOAT RAMP REPLACEMENT

SIDEWALK AND BOULDER DETAILS

SFL

AJL/JPP

SO/REV05/31/2012

05/31/2012

05/31/2012

GRAPHIC SCALE: NOT TO SCALE

at left

BOULDER DETAILS

SECTION VIEW

CONCRETE SIDEWALK DETAILS

RUB RAIL DETAIL

NOTES:

1. RUB RAIL TO BE FASTENED FLUSH TO RETAINING WALL AS SHOWN ON

RUB RAIL DETAIL 1. ANCHOR SPACING SHALL BE 2' STARTING 1' FROM

ENDS. ANCHOR BOLT HEAD SHALL BE COUNTERSUNK.

2. EPOXY GEL UNITEX PRO-POXY 400 OR EQUIVALENT SHALL BE USED

FOR CONCRETE ANCHORS.

3. GALVANIZED BOLTS SHALL BE COUNTERSUNK IN RUB RAIL AND

SECURELY ANCHORED IN CONCRETE RETAINING WALL.

CORNER

POST

END

POST

TOP OF

RETAINING

WALL

RAIL

RAIL

DIMENSION AS SHOWN

ON PLAN (SEE SHEET 6)

THREE RAIL

HANDRAIL

WELD (SEE GENERAL

NOTE 2)

BOLT DOWN CONNECTION

(SEE SIDE VIEW)

FINISH GRADE

(SIDEWALK)

BOLT DOWN

CONNECTION. MOUNT

SYMMETRICALLY ON TOP

OF WALL.

(SEE SHEET 11)

NOTES:

2% MAX. 4

CANTILEVER

RETAINING

WALL

1. HANDRAIL DETAILS ARE BASED ON UNITED STATES ACCESS BOARD (AND

FOREST SERVICE OUTDOOR RECREATION ACCESSIBILITY GUIDELINES)

STANDARDS.

2. SEE SHEET 10 FOR WELD DETAILS.

3. SEE SHEET 10 FOR ANCHOR PLATE FOR BOLT DOWN CONNECTION DETAILS.

4. HOT-DIP GALVANIZE ALL PARTS AFTER FABRICATION.

5. SEE SHEET 10 FOR APPROVED POST AND RAIL MATERIALS.

RAIL 6" RADIUS

PREMOLDED

JOINT FILLER

TETRA TECH EC, INC.

19803 North Creek Parkway

Bothell, WA 98011

CHUGACH NATIONAL FOREST

CORDOVA RANGER DISTRICT

ALAGANIK SLOUGH

BOAT RAMP REPLACEMENT

HANDRAIL DETAILS (1)

BIS

AJL/JPP

SO/REV05/31/2012

05/31/2012

05/31/2012

GRAPHIC SCALE: NOT TO SCALE

ANCHOR PLATE FOR BOLT DOWN CONNECTION

1/2" dia. DRAINAGE HOLE

AT BASE OF EACH POST

1/8

1/8

1. DETAILS ARE BASED ON UNITED STATES ACCESS BOARD STANDARDS.

2. SELECT MATERIALS FROM TABLE. POSTS AND RAIL SHALL BE IDENTICAL

MATERIAL.

3. ALL STEEL PIPE WELDS ARE COMPLETE JOINT PENETRATION, IN

ACCORDANCE WITH AWS D1.1. USE E70XX WELDING ROD.

4. POSTS SHALL BE VERTICAL. THE TOP RAIL SHALL BE CONTINUOUS OVER A

MINIMUM OF TWO POSTS.

5. ON STRUCTURE, THE RAILING SHALL CONFORM TO THE VERTICAL

ALIGNMENT OF THE STRUCTURE. RAILS SHALL HAVE A SPLICE IN THE POST

SPACE OCCURING AT EXPANSION JOINTS.

6. HOT-DIP GALVANIZE ALL PARTS AFTER FABRICATION, ASTM A123.

7. STEEL ANCHOR PLATE SHALL MEET ASTM A36 SPECIFICATIONS.

8. EPOXY GEL UNITEX PRO-POLY 400 OR EQUIVALENT SHALL BE USED FOR

POST-INSTALLED CONCRETE ANCHORS.

(See Note 8)

TETRA TECH EC, INC.

19803 North Creek Parkway

Bothell, WA 98011

CHUGACH NATIONAL FOREST

CORDOVA RANGER DISTRICT

ALAGANIK SLOUGH

BOAT RAMP REPLACEMENT

HANDRAIL DETAILS (2)

SFL

AJL/JPP

SO/REV05/31/2012

05/31/2012

05/31/2012

GRAPHIC SCALE: NOT TO SCALE

ALL HANDRAIL (POSTS, RAILS) SHALL BE 1 1/2"Ø PIPE SCHEDULE 40

8"

4"

CL

TETRA TECH EC, INC.

19803 North Creek Parkway

Bothell, WA 98011

CHUGACH NATIONAL FOREST

CORDOVA RANGER DISTRICT

ALAGANIK SLOUGH

BOAT RAMP REPLACEMENT

CONCRETE BOAT RAMP PLANK DETAILS

SFL

AJL/JPP

SO/REV06/05/2012

06/05/2012

06/05/2012

GRAPHIC SCALE: NOT TO SCALE

4" CHAMFER (TYP)

STIRRUPS AND REBAR SPACED PER

MANUFACTURER'S

RECOMMENDATIONS FOR PLANK

DIMENSIONS (TYP)

8"X8" AYC CURB, 3" GAP

BETWEEN TIMBER

AND TOP OF PLANK (TYP)

SUBGRADE PREPARED IN

ACCORDANCE WITH SHEETS 4&5

AND THE CONTRACT SPECIFICATIONS

SWAGELESS

THREADED STAINLESS

STUD END FITTING

(FOR CABLE

TERMINATION AT FIRST

AND LAST PLANKS)

4"x4"x1/4" STAINLESS

STEEL PLATE WITH

1"-DIAMETER HOLE

DRILLED IN CENTER

1" THICK X 6" X 6" SQUARE

SKIRTBOARD RUBBER SPACER

WITH 3/4" DIAMETER HOLE

DRILLED IN CENTER FOR WIRE

ROPE

1/2" DIAMETER 6 X 19

TYPE 304 STAINLESS

STEEL WIRE ROPE

1 1/2" DIAMETER PVC

PIPE SLEEVE FOR

ROUTING WIRE ROPE

16'

8"X8" AYC

CURB (TYP)

4' (TYP)

1 1/2" PVC PIPE

SLEEVE FOR

ROUTING WIRE

ROPE

1'-11" (TYP)

11-1/2" (TYP)

PLAN-VIEW

3" X 6" x 8" AYC SPACER

5/8" HOT-DIP GALVANIZED BOLTS, COUNTERSUNK IN

WOOD AND CONCRETE PLANKS.

ALTERNATIVELY, THE 5

8" Ø ANCHORS MAY BE PRECAST

INTO THE PLANKS OR POST-INSTALLED CONCRETE

ANCHORS MAY BE USED (ALL THREAD) (SEE NOTE 3)

at left

GEOTEXTILE (SEE SHEETS 4 & 5)

LAP SPLICE (TYP) BETWEEN

ADJACENT TIMBERS AS

NEEDED.

8" TYP

4" (TYP)

FOR LIMITS OF CURBING, SEE

TYPICAL SECTION A, SHEET 5.

PRE-CAST

CONCRETE

PLANK

NUT AND WASHER

(SEE NOTE 1)

4" CHAMFER

4" X 12" TREATED TIMBER SILL

(SEE NOTE 5)

RIPRAP

8"X1'-11"-16'

CONCRETE PLANK

1 1/2" PVC PIPE

SUBGRADE (SEE

SHEETS 4 AND 5)

SEPARATION

GEOTEXTILE

4'-0"GRAVEL BEDDING (SEE

NOTE 4, SHEET 5)

4"X12" TREATED

TIMBER SILL

HEAVY

BROOM

FINISH (SEE

NOTE 6)

8"

8" 3"

6"

3" 1'

SILLS TO BE LAP JOINED

USING 1/2"Ø STAINLESS

STEEL THREADED ROD

WITH FLAT WASHERS &

NUTS, BOTH ENDS

SHRUB, TREE, AND GROUND COVER PLANTING DETAIL

BACKFILL WITH TOPSOIL

SEE NOTE

SPREAD ROOTS OUT

EMERGENT PLANTING DETAIL

PLANTING HOLE 3 TIMES

THE ROOT SPREAD

BREAK UP ROOTBALL OF CONTAINER PLANTS,

INCLUDING PLUGS PRUNE CIRCLING ROOTS

3 TIMES

THE ROOT SPREAD

ROOT

DEPTH

UPPERMOST ROOT SHALL BE NO MORE THAN

1" BELOW SOIL SURFACE

MOUND SOIL TO FORM WATERING WELL AT

DRIPLINE OF EACH PLANT

NON-SYNTHETIC FIBER JUTE MAT (OR CLEAN WOOD

MULCH) AS APPROVED BY THE OWNER TO PROVIDE

TEMPORARY EROSION AND SEDIMENT CONTROL

DURING PLANT ESTABLISHMENT. MULCH MATERIALS, IF

USED, SHALL BE FEATHERED TO BASE OF PLANT.

INSTALL PLANT

VERTICALLY

EXISTING SOIL

EXISTING SOIL

UPPERMOST ROOT SHALL BE NO MORE

THAN 1" BELOW SOIL SURFACE

BREAK UP ROOTBALL OF CONTAINER

PLANTS, PRUNE CIRCLING ROOTS

TETRA TECH EC, INC.

19803 North Creek Parkway

Bothell, WA 98011

CHUGACH NATIONAL FOREST

CORDOVA RANGER DISTRICT

ALAGANIK SLOUGH

BOAT RAMP REPLACEMENT

PLANTING DETAILS

BIS/WDB

BIS/JBC

SO/REV05/31/2012

05/31/2012

05/31/2012

12at left

PLANT MATERIAL SCHEDULE

COMMON

NAME SCIENTIFIC NAME PERCENT

COMPOSITION

DENSITY PER AREA

REVEGETATED *

TOTAL PLANTS

NEEDED

SITKA SPRUCE PICEA SITCHENSIS 8 1 1

SITKA ALDER

ALNUS CRISPA

SSP. SINUATA 17 2 2

WILLOWS

SALIXSPP. (AS

AVAILABLE) 50 6 5

SWEETGALE MYRICA GALE 25 3 2

TREE/SHRUB TOTAL 100 12 12

* APPROXIMATELY 500 SQUARE FEET

SEED MIX AND APPLICATION RATES

COMMON

NAME

SCIENTIFIC NAME PERCENT

COMPOSITION

POUNDS PER AREA

REVEGETATED *

TOTAL POUNDS

NEEDED

BLUEJOINT

REEDGRASS

CALAMAGROSTIS

CANADENSIS 67 0.2 0.2

SITKA SEDGE CAREX SITCHENSIS 33 0.1 0.1

TOTAL 100 0.3 0.3

* APPROXIMATELY 500 SQUARE FEET

NOTES:

1. TREES AND SHRUBS SHALL BE PLANTED AT APPROXIMATELY 8 FEET ON CENTER.

2. SEED MIXTURES SHALL BE APPLIED TO BARE SOIL AT A RATE OF 30 POUNDS

PER ACRE.

3. SEED MIXTURES SHALL BE CERTIFIED “WEED-FREE.”

4. THE USE OF MULCH, FERTILIZER, ORGANIC SOIL TACKIFIERS, OR THE METHODS

THAT WOULD BE USED TO APPLY SEED MIXTURES SHALL BE APPROVED BY THE

FOREST SERVICE PRIOR TO USE.