Attchment C Phase 2 Construction Set~2.pdf

PROPOSED TRAIL

BY OWNER, TYP.

EXISTING ROAD

PROPOSED TRAIL

BY OWNER

ACCESSIBLE BOARDWALK, TYP.,

APPROX. TOTAL LENGTH: 150 LINEAR FT

EXISTING

HISTORIC BARN

EXISTING

PARKING LOT

WASSON CREEK RESTORATION SITE

EXISTING GATE

A1.2

MODIFY GRADING @ TRAIL,

SEE ENLARGED PLAN

SSNERR VISTOR CENTER

PROJECT LOCATION (WASSON

CREEK RESTORATION SITE)

SEVEN

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HINCH RD

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COVER SHEET &

SITE PLAN

MAY 2025

1" = 50'-0"1 OVERALL SITE PLAN

N.T.S.2 VICINITY MAP

SHEET INDEX

ARCHITECTURAL

A1.1 COVER SHEET & SITE PLAN

A1.2 BOARDWALK & GRADING PLAN

A1.3 ENLARGED PLANS & FRAMING PLANS

A1.4 SECTIONS & ELEVATIONS

SP1 SPECIFICATIONS

SP2 SPECIFICATIONS

SOUTH SLOUGH NATION ESTUARINE RESEARCH RESERVE (S.S.N.E.R.R.)

WASSON CREEK BOARDWALKS PROJECT - PHASE 2

PROJECT NOTES

1.

2.

PHASE 1 WORK INCLUDED INSTALLATION OF HELICAL

PILES TO APPROXIMATE ELEVATION. EXISTING PILES

ARE INDICATED ON PLANS AND DETAILS. PILES WILL

NEED TO BE CUT DOWN TO ELEVATION PRIOR TO

INSTALLATION OF BOARDWALK.

BOARDWALK LOCATION & ORIENTATION SHOWN IS

APPROXIMATE RELATIVE TO EXISTING SITE AND

SHOULD BE VERIFIED.

ABBREVIATIONS

⌀ DIAMETER

@ AT

℄ CENTER LINE

(E) EXISTING

EA. EACH

EQ. EQUAL

MAX. MAXIMUM

MIN. MINIMUM

N.I.C. NOT IN CONTRACT

O.C. ON CENTER

PL PLASTIC LUMBER

REQ. REQUIRED

TYP. TYPICAL

W/ WITH

WD WOOD

# DATE DESCRIPTION

LOOKOUT

PLATFORM

(BENCHES N.I.C.)

A1.3

TYP.

8'

ACCESSIBLE

BOARDWALK, TYP.,

TOTAL LENGTH: 150

LINEAR FT

A1.4

A1.4

20'

A1.4

EXISTING HELICAL PILE

BELOW, FIELD VERIFY

LOCATIONS, TYP. OF (38)

A1.3

22'

138°

2°

9°

A1.4

(E) 18.31'

(E) 16.93'

(E) 16.37'

(E) 15.68'

(E) 15.49'

(E) 15.19'

LEGEND

XX.XX'

XX.XX'

EXISTING ELEVATION

TARGET ELEVATION

3.5% RUNNING

SLOPE, TYP.

(E) 9.74'

@ GRADE

13.92'

TOP OF BOARDWALK

16.81'(E) 10.76'

@ GRADE

1.5% CROSS

SLOPE, TYP.

TOTAL ESTIMATED LENGTH OF

RAILING: 52 FT. FIELD VERIFY.

13.92'

13.15'

TOP OF BOARDWALK

16.18'

15.73'

15.38'

15.00'

14.46'

11.75'

TOP OF BOARDWALK

(E) 9.91'

@ GRADE

12.10'

TOP OF BOARDWALK

(E) 8.30'

@ GRADE11.31'

TOP OF BOARDWALK

(E) 7.81'

@ GRADE

10.25'

TOP OF BOARDWALK

(E) 8.43'

@ GRADE10.61'

TOP OF BOARDWALK

9.76'

@ GRADE

(EXCAVATE TO -1.00' BELOW EXISTING)

1.5% MAX CROSS

SLOPE, TYP.

3.5% RUNNING

SLOPE, TYP.

NOTES

1.

2.

3.

4.

5.

KEEP BOARDWALK HEIGHT ABOVE

GRADE TO LESS THAN 30".

HANDRAILS REQUIRED AT HEIGHTS

30" OR MORE ABOVE GRADE ONLY.

FIELD VERIFY EXISTING GRADES

AND SLOPES.

MAINTAIN 3.5% MAX RUNNING

SLOPE & 1.5% MAX CROSS SLOPE.

(E) PILINGS WERE INSTALLED TO

APPROXIMATE ELEVATION. CUT TO

CORRECT ELEVATION FOR

BOARDWALK INSTALL.

8.90'

@ GRADE

(ADD FILL TO +0.60' ABOVE EXISTING)

APPROXIMATE 5'

CONTOURS

DO NOT DISCHARGE FILL OR SEDIMENT INTO THE WATERS OF STATE

EXCAVATE TO TARGET ELEVATIONS AS SHOWN

PROTECT ALL EXISTING EMBANKMENTS AND

SLOPES OF TRAIL AND TREES, PLANTS, AND

SHRUBS

EXISTING TRAIL BEYOND TO BE ABANDONED,

EXCAVATE TO ACHIEVE SMOOTH GRADE TRANSITION

(MAINTAIN 3.5% MAX. SLOPE)

EXISTING TRAIL BEYOND, EXCAVATE TO

ACHIEVE SMOOTH GRADE TRANSITION

(MAINTAIN 3.5% MAX. SLOPE)

COMPACTED NATIVE SOIL, TYP.

ADD FILL AS REQUIRED, SEE SPECS

6'

- 0

" M

AX

5'

- 0

" M

IN

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BOARDWALK &

GRADING PLAN

MAY 2025

1/8" = 1'-0"1 BOARDWALK PLAN

WD 2x6 DECKING, TYP.

WD BENCHES, N.I.C. (2)

8'

0"

A1.4 6'

0" 6'

0"

21' - 0"

WD 2x4 CURB @ PERIMETER

EXTERIOR-RATED

ANTI-SLIP TAPE, TYP.

WD 2x6 DECKING, TYP.

8'

0"

WD 2x6 TOP RAIL @ RAILINGS, TYP.

WHERE INDICATED, SEE PLAN

A1.4

A1.4

WD 2x4 CURB EA. SIDE

EXTERIOR-RATED

ANTI-SLIP TAPE, TYP.

A1.3

EDGE OF

DECKING ABOVE

A1.4 PROVIDE ADJUSTABLE U-

BRACKETS @ (E) 2-7/8"⌀

HELICAL PILES, TYP.

10' - 0" 10' - 0"6" 6"

21' - 0"

6'

0" 6'

0"

6'

0"

PL J

OISTS @

" O

.C., T

YP.

PL

B

EA

M

PL

B

EA

M

PL

B

EA

M

PL

B

EA

M

EDGE OF DECKING ABOVE

PROVIDE ADJUSTABLE U-BRACKETS

@ (E) 2-7/8"⌀ HELICAL PILES, TYP.2

A1.4

8'

0"

PL

B

EA

M

PL

B

EA

M

PL

B

EA

M

10' - 0" O.C., TYP.

6'

0"

PL JOISTS @ 24" O.C., TYP.

(2) WD 2x4 POSTS

@ RAILINGS, TYP.

A1.4

PL

B

EA

M

PL

B

EA

M

10' - 0" MAX.

TYP.

5' - 0" O.C.

A1.3

WD 2x6 DECKING, TYP.

WD 2x4 CURB EA. SIDE

8'

0"

EQ

6'

0"

EQ

4"

1/4" GAP 5 1/2" 1/4" GAP

EXTERIOR-RATED

ANTI-SLIP TAPE, TYP.

WD 2x6 SUPPORT

RAIL BELOW

(2) WD 2x4 POST, FASTEN

W/ 2-1/2" WD SCREWS @

12" O.C., EA. SIDE

4"x4" WELDED

WIRE GRID

(2) WD 2x2s, EA.

SIDE OF POST

1"

1"

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ENLARGED PLANS &

FRAMING PLANS

MAY 2025

1/4" = 1'-0"4 ENLARGED PLAN @ LOOKOUT

1/4" = 1'-0"5 ENLARGED PLAN @ BOARDWALK

1/4" = 1'-0"1 ENLARGED FRAMING PLAN @ LOOKOUT

1/4" = 1'-0"2 ENLARGED FRAMING PLAN @ BOARDWALK

3/4" = 1'-0"6 ANTI-SLIP TAPE

3" = 1'-0"3 WOOD POST

# DATE DESCRIPTION

NOTE: PLASTIC LUMBER TO BE SIZED BY MANUFACTURER TO

SUPPORT 100 PSF LIVE LOAD WITH MAX. DEFLECTION OF

L/360. SEE SPECIFICATIONS.

WD 2x6 DECKING

PL JOISTS @ 24" O.C.

(2) WD 2x4 POST @ 5' - 0" O.C.

WD 2x6 SUPPORT RAIL

WD 2x6 TOP RAIL

WD 2x6 SUPPORT RAIL

PL BEAMS @ 10' - 0" O.C.

4"x4" WELDED WIRE GRID

6' - 0"

R

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8' - 0"

7' - 0"

A1.4

1/2"⌀ THRU-BOLT, TYP.

(4) SIMPSON STRONG-DRIVE

0.27"x4" SCREWS, TYP.

(2) WD 2x2s, EACH SIDE OF POST

(E) 2-7/8"⌀ HELICAL PILES

@ 10' - 0" O.C., TYP.

PROVIDE ADJUSTABLE

HELICAL PILE U-BRACKET, TYP.

WD 2x4 CURB EA. SIDE

PL SOLID CONT. BLOCKING

A1.3

WD 2x6 SUPPORT RAIL

WD 2x6 TOP RAIL

WD 2x6 SUPPORT RAIL

(2) WD 2x4 POSTS @ 5' - 0" O.C.

4"x4" WELDED WIRE GRID

R

AI

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N

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H

ER

E O

C C

U R

S

WD 2x6 DECKING

PL JOISTS @ 24" O.C.

(E) 2-7/8"⌀ HELICAL PILES

@ 10' - 0" O.C., TYP.

PL SOLID CONT. BLOCKING

@ BEAMS, TYP.

PL BEAMS CROSSBEAMS

@ 10' - 0" O.C.

PROVIDE ADJUSTABLE

HELICAL PILE U-BRACKET, TYP.

(4) SIMPSON STRONG-DRIVE

0.27"x4" SCREWS, TYP.

NOTE: SLOPE BOARDWALK AS REQ., 3.5% MAXIMUM. KEEP HEIGHT

ABOVE GRADE TO LESS THAN 30" TO GREATEST EXTENT POSSIBLE.

SLOPE 3.5% MAX

SIMPSON CONCEALED-FLANGE

LIGHT JOIST HANGER, TYP.

(2) WD 2x2s, EACH SIDE OF

POST, TYP.

WD 2x4 CURB BEYOND

A1.3

WD 2x6 DECKING

PL JOISTS @ 24" O.C.

PL BEAMS @ 10' - 0" O.C.

6' - 0"

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8' - 0"

A1.4

SIM.

(E) 2-7/8"⌀ HELICAL PILES

@ 10' - 0" O.C., TYP.

PROVIDE ADJUSTABLE

HELICAL PILE U-BRACKET, TYP.

WD 2x4 CURB EA. SIDE

PL SOLID CONT. BLOCKING

PL CONT. RIM

JOIST

COMPACTED AGGREGATE

BACKFILL, HOLD DOWN 1/2"

FROM DECKING

SLOPE 3.5% MAX

NATIVE SUBGRADE

PL 4x4, STAKE INTO

GROUND W/ #4 REBAR

@ 24" O.C.

CANTILEVER PL JOISTS

AS REQUIRED

3' - 0" MAX.

VERIFY CANTILEVER

WD 2x4 CURB BEYOND

ADD BACK NATIVE

COMPACTED TOPSOIL

1' - 6"

6" THICK STONE EMBANKMENT @ SLOPE

3" TOPSOIL OVER STONE EMBANKMENT,

TO BE PLANTED BY OWNER

2'

0"

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SECTIONS &

ELEVATIONS

MAY 2025

1" = 1'-0"1 TYPICAL BOARDWALK CROSS SECTION @ RAILING

1" = 1'-0"4 LONGITUDINAL SECTION

1" = 1'-0"2 TYPICAL BOARDWALK CROSS SECTION

1" = 1'-0"3 LONGITUDINAL SECTION @ TRAIL

# DATE DESCRIPTION

NOTE: PLASTIC LUMBER TO BE SIZED BY MANUFACTURER TO

SUPPORT 100 PSF LIVE LOAD WITH MAX. DEFLECTION OF

L/360. SEE SPECIFICATIONS.

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SPECIFICATIONS

MAY 2025

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SPECIFICATIONS

MAY 2025