2-NW-C1222 WHT Fish Passage and Habitat Restoration-Drwgs.pdf
PDF 8 MB Posted
- Attached to
- State Parks Project – Willapa Hills Trail Fish Passage and Habitat Restoration at Willapa Hills State Park
- Solicitation number
- NW-C1222
- Issued by
- Mason County, Washington
About this file
Summary
This is a set of construction drawings and specifications for the Willapa Hills State Park Trail Fish Passage and Habitat Restoration Project, prepared by the Washington State Parks and Recreation Commission in partnership with the Washington Department of Fish and Wildlife. The project addresses a fish passage barrier on an unnamed tributary to the Willapa River located in Lebam, Washington (Pacific County, Section 33, T.13N., R.7W.). The scope of work includes removal of two existing undersized 36-inch concrete culverts, excavation and stream channel restoration, installation of pre-cast abutments, construction of a 100-foot-long by 10-foot-wide pedestrian bridge, trail approach grading, and site stabilization with native vegetation plantings. The project encompasses approximately 730 linear feet of construction limits with detailed specifications for erosion control, dewatering procedures, temporary fish screening, and environmental protection measures. Survey data indicates three control points with elevations ranging from 95.90 to 102.38 feet, and the streambed profile shows a new roughened channel section at 10.27 percent grade and a standard channel section at 1.33 percent grade. The drawings were approved for construction on March 3, 2026, with design completion dated September 31, 2023.
The construction specifications require adherence to maximum horizontal tolerances of plus or minus 0.5 feet and vertical tolerances of plus or minus 0.1 feet. All necessary permits must be obtained by Washington State Parks, with copies maintained onsite by the contractor. The project requires coordination with the Washington Department of Fish and Wildlife for fish exclusion and removal prior to work initiation, installation of temporary fish screens, and maintenance of work isolation zones during construction. Site stabilization of all disturbed areas must occur within seven days of completion, followed by re-vegetation with native species including salmonberry, snowberry, Oregon grape, cedar, maple, and Douglas fir planted at specified densities ranging from 3 to 15 feet on center. Pre-construction meetings, construction staking, and coordination with the project engineer and construction inspector are mandatory, and the contractor is responsible for compliance with all permit terms, conditions, and environmental protection measures outlined in the project specifications.
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NORTH
PROJECT LOCATION
NORTH
VICINITY MAP
WILLAPA HILLS STATE PARK TRAIL
FISH PASSAGE AND HABITAT RESTORATION PROJECT
(ACTING) AREA MANAGER: KEVIN GOODRICH
CA
D#
: W
0-
-S
W -1
S
PE
C#
WASHINGTON STATE PARKS
& RECREATION COMMISSION
INDEX
DESCRIPTIONSHEET
COVER SHEET
WILLAPA HILLS STATE PARK TRAIL
ROBERTSON ROAD LEBAM, WA. 98577
PACIFIC COUNTY
SEC 33, T.13N., R.7W., W.M.
46°56'39" N & 123°356'41" W
EXISTING CONDITIONS PLAN
5 EROSION CONTROL NOTES & DETAILS
4 EROSION CONTROL & DEWATERING PLAN
3 GENERAL NOTES
ALI RAAD
HOLLY WILLIAMS, CHAIR
SCOTT MERRIMAN HOLLY WILLIAMS
ALFIE ALVARADO-RAMOS
DIANA DUPUIS, DIRECTOR
SOPHIA DANENBERG
6 DEWATERING NOTES & DETAILS
9 BRIDGE & TRAIL PLAN & PROFILE
8 STREAMBED PROFILE
7 STREAMBED ALIGNMENT
11 PLANTING NOTES & SCHEDULES
10 PROJECT NOTES & DETAILS
March 3, 2026
3/4/2026
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%%UAPPROVED FOR CONSTRUCTION
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CAPITAL PROGRAM MANAGER
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REGION MANAGER
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WESTPORT
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SHORES
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OCEAN
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OCEAN
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CATHLAMET
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KALAMA
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KELSO
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LONGVIEW
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WINLOCK
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TUMWATER
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DOTY
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OAKVILLE
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PE ELL
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ILWACO
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CITY
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RAYMOND
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ABERDEEN
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HOQUIAM
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MONTESANO
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ELMA
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SHELTON
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MOCLIPS
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ROCK
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CASTLE
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TOLEDO
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TENINO
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OLYMPIA
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LACEY
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ADNA
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CHEHALIS
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WILLAPA HILLS
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STATE PARK TRAIL
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PROJECT LOCATION
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SITE
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LEBAM
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LEBAM
PK #2-�
EXISTING WILLAPA HILLS STATE PARK TRAIL
IS ON THE OLD RAILROAD GRADE
44 LF EX. 36-INCH
CONCRETE CULVERT
@ 0.50%
US IE 83.98
OS IE 83.76
93/
9'1-
HUB #1
91,---------------
,---92--------
'--PK #1
S cale: 1 20'
�-61 LF EX. 2-36-INCH
CONCRETE CULVERT
@ 2.78%
US IE 83.10
OS IE 82.70 PROJECT CONTROL POINTS
SURVEY CONTROL POINTS TABLE
1 .
2.
3.
DescriQtion Easting Northing Elevation
HUB #1
PK #1
PK #2
ASSUMED
10000.000' 8000.000' 100.00' 9967.673' 7879.740' 95.90'
10149.306' 8078.056' 102.38'
SURVEY DISCLAIMER
THIS IS NOT A BOUNDARY SURVEY. ELEVATIONS SHOWN ARE
BASED ON AN ASSUMED DATUM. TOPOGRAPHIC INFORMATION WAS
GATHERED UNDER DIRECTION OF THE ENGINEER FOR THE SOLE
PURPOSE OF DESIGN AND CONSTRUCTION OF THIS PROJECT.
PROPERTY LINES, EASEMENTS, AND RIGHT OF WAY LOCATIONS
DISPLAYED ARE APPROXIMATE BASED ON INFORMATION OBTAINED
FROM RECORDED DOCUMENTS, FOR REFERENCE PURPOSES
ONLY. FIELD DATA COLLECTED 3-2022.
EXISTING CONDITIONS SHEET 2 OF 11
CAD NO. PARKC0DE-PR0JECTC0DE-YEAR-FILENAME
ACTION BY DATE
D..
D..
>-' z
U) z
U) z
DESIGNED KLK 09/31 /23
DRAWN TG 09/31/23
CHECKED (FIELD) XXX XX/XX/XX
CHECKED (HDQTS.) XXX XX/XX/XX
I -;, I I,, I VI 2,, 1-
PROJECT ENGINEER
WASHINGTON
STATE
PARKS
AND
RECREATION
COMMISSION
WILLAPA HILLS
STATE PARK TRAIL
FISH PASSAGE &
HABITAT
RESTORATION
PROJECT
EXISTING
CONDITIONS PLAN
SCALE
o"---1"
IF SHEET IS LESS THAN
22"x34" IT IS A REDUCED SET
PARKS FILE#
SURVEY NOTES
1. THIS SURVEY WAS PERFORMED ON MARCH 2022 IN SUPPORT OF THE CULVERT REMOVAL AND BRIDGE
INSTALLATION IS INTENDED TO BE USED FOR THIS PURPOSE.
2. THIS IS NOT A PROPERTY BOUNDARY SURVEY, PROPERTY AND RIGHT-OF-WAY LINES HAVE NOT BEEN DETERMINED.
3. UNDERGROUND UTILITIES WERE NOT EXAMINED OR CONSIDERED AS A PART OF THIS SURVEY.
4. CONTOUR INTERVAL IS 1-FOOT.
UTILITY NOTIFICATION NOTES
"BEFORE YOU DIG CALL THE ONE CALL UTILITY NOTIFICATION CENTER 811 OR 1-800-424-5555
OR VISIT WWW.CALLBEFOREYOUDIG.ORG A MINIMUM OF TWO BUSINESS DAYS PRIOR TO CONSTRUCTION. IT'S THE LAW."
"WDFW MAKES NO REPRESENTATION AS TO THE EXISTENCE OR NONEXISTENCE OF ANY UTILITY, PUBLIC AND/OR PRIVATE, BURIED OR OVERHEAD, EXCEPT AS SHOWN ON THE DRAWINGS. WHERE UTILITIES ARE SHOWN ON THE DRAWINGS, THE
LOCATION, DEPTH AND/OR HEIGHT ARE APPROXIMATE. THE EXACT LOCATION, DEPTH AND/OR HEIGHT MUST BE
DETERMINED BY THE UTILITY COMPANY AND/OR THE LAND OWNER PRIOR TO ANY CONSTRUCTION WITHIN THE PROJECT
VICINITY."
CONSTRUCTION SEQUENCE NOTES
1. CALL FOR A PRE-CONSTRUCTION MEETING WITH THE PROJECT SPONSOR, CONSTRUCTION INSPECTOR AND ENGINEER.
2. CONSTRUCTION STAKING WILL BE PERFORMED BY INSPECTOR AND ENGINEER.
3. INSTALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES.
4. CONSTRUCT WORK ISOLATION ZONE PRIOR TO ANY WORK NEAR OR BELOW OHWM, COORDINATE
WITH WDFW TO PERFORM FISH EXCLUSION/REMOVAL.
5. REMOVE AND DISPOSE OF TWO EXISTING CONCRETE CULVERT PIPES, EXCAVATE AND CONSTRUCT NEW STREAM CROSSING, STREAM, AND ROUGHENED CHANNEL.
6. CONSTRUCT NEW PRE-CAST ABUTMENTS AND PEDESTRIAN BRIDGE.
7. STABILIZE ALL DISTURBED AREAS WITHIN 7 DAYS OF COMPLETION. RE-VEGETATE AND REMOVE WASTE MATERIALS
FROM SITE AS APPROVED BY THE SPONSOR AND LANDOWNER.
GENERAL CONSTRUCTION NOTES
1. ALL PERMITS NECESSARY TO CONSTRUCT THE PROJECT WILL BE OBTAINED BY WASHINGTON STATE PARKS.
COPIES OF THE PERMITS SHALL BE MAINTAINED ONSITE BY THE CONTRACTOR AND MADE AVAILABLE WHEN/IF REQUESTED.
THE CONTRACTOR SHALL BE RESPONSIBLE FOR COMPLYING WITH ALL PERMIT TERMS AND CONDITIONS.
2. THE CONSTRUCTION AND MATERIAL SPECIFICATIONS ARE PART OF THIS PLAN AND SHALL GOVERN THE
INSTALLATION OF THIS PROJECT.
3. THIS PROJECT SHALL BE CONSTRUCTED TO THE LINES AND GRADES SHOWN ON THE DRAWINGS AND DESCRIBED IN THE
CONSTRUCTION SPECIFICATIONS.
4. MAXIMUM TOLERANCES
a. HORIZONTAL
b. VERTICAL
SHALL BE AS FOLLOWS:
+/- 0.5 FT
+/- 0.1 FT
5. FAILURE TO MEET THE ABOVE TOLERANCES MAY RESULT IN THE REMOVAL AND REPLACEMENT OF PORTIONS OF THE
PROJECT AT NO ADDITIONAL COST.
6. ADJUSTMENTS TO LOCATIONS/TOLERANCES MUST BE APPROVED BY ENGINEER.
7.
8.
MAINTAIN A MINIMUM OF 5 FEET OF CLEARANCE FROM TREES MARKED FOR PRESERVATION.
TREE PRUNING MAY BE NECESSARY ON THE TREES MARKED FOR PRESERVATION. MEANS, METHODS, AND EXTENT WILL
BE DISCUSSED WITH THE CONTRACTOR AT THE PRE-CONSTRUCTION MEETING.
1.
2.
3.
4.
5.
6.
7.
8.
LINE LEGEND:
EXISTING MAJOR CONTOUR
EXISTING MINOR CONTOUR
PROPOSED MAJOR CONTOUR
PROPOSED MINOR CONTOUR
EDGE OF WATER
MHHW
OHW
ALIGNMENT
CROSS SECTION
BRUSH
PROPOSED ROAD FEATURE
TRAFFIC BARRIER
SILT FENCE
CONSTRUCTION LIMITS
EXISTING GRADE
PROPOSED GRADE
HIGH VISIBILITY FENCE
HATCH LEGEND:
EXISTING GRAVEL SURFACING
PROPOSED GRAVEL SURFACING
SLOPE PLANTING AREA
EXISTING WATER SURFACE
CONSTRUCTION NOTES
IDENTIFY ANY STRUCTURES OR MATERIALS WITHIN THE PROJECT AREA SLATED
FOR RELOCATION OR REMOVAL PRIOR TO PROJECT IMPLEMENTATION (E.G.
EXISTING BOULDERS/RIP RAP) AND CONDUCT OR ARRANGE FOR THEIR
REMOVAL OR RELOCATION. DISPOSE OF THE DEBRIS GENERATED FROM
REMOVAL AT AN APPROPRIATE LOCATION, AS AGREED UPON WITH PROJECT
SPONSORS.
EQUIPMENT USED ON THIS PROJECT MUST BE IN EXCELLENT WORKING
CONDITION, WELL MAINTAINED AND COMPLETELY FREE OF FLUID LEAKS
OF ANY KIND.
CONTACT WDFW TO SCHEDULE FISH REMOVAL. MAINTAIN SMALL NETS TO
CONTINUE FISH REMOVAL DURING CONSTRUCTION AS FISH ARE OBSERVED.
AFTER INITIAL FISH REMOVAL, THE WORK AREA IS TO BE ISOLATED FROM
FRESHWATER UNTIL TARGET GRADES REACHED. ANY FISH MISSED DURING
THE INITIAL REMOVAL ARE TO ALSO BE SAFELY REMOVED AND RELOCATED BY
WDFW OR THE CONTRACTOR. CONTINUE FISH REMOVAL EFFORTS,
WITH FURTHER,INCREMENTAL DEWATERING AS NECESSARY, UNTIL ALL FISH ARE
PERCEIVED TO HAVE BEEN CAPTURED AND MOVED.
ANY DAMAGE TO THE PROPERTY OUTSIDE OF THE SCOPE OF THESE PLANS
SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO REPLACE / REPAIR.
PLACE ALL STRUCTURAL (NOT STREAMBED) FILL MATERIALS IN LIFTS NOT TO
EXCEED 8-INCHES AND COMPACT.
ALL EROSION CONTROL DEVICES MADE OF NON-BIO-DEGRADABLE MATERIALS
TO BE REMOVED UPON DEMOBILIZATION.
TEMPORARY SPOIL PILE LOCATIONS TO BE FLAGGED ONSITE BY ENGINEER PRIOR
TART F WORK.
ABBREV/A TIO NS
AISC - AMERICAN INSTITUTE OF
STEEL CONTRUCTION
ALUM - ALUMINUM
APPROX.- APPROXIMATELY
BM - BENCH MARK
CL - CENTERLINE
CLR. - CLEARANCE
CONC - CONCRETE
CP - CONTROL POINT
r/J - DIAMETER
DBH - DIAMETER AT BREAST HEIGHT
E. - EAST
EX. - EXISTING
ELEV. - ELEVATION
F.B. FLAT BAR
F.C. - FISH CONDUIT
FG - FINISH GRADE
FT - FOOT
FTG - FOOTING
F.W. - FISHWAY
GALV - GALVANIZED
GA. - GAUGE
HORZ. - HORIZONTAL
HPA - HYDRAULIC PROJECT APPROVAL
HSS - STRUCTURAL TUBING
ID - INSIDE DIAMETER
IE - INVERT ELEVATION
LAT. - LATITUDE
LFW - LOWER FISHWAY
LF - LINEAL FEET
LG - LONG
LONG. LONGITUDE
LT - LEFT
MAX. - MAXIMUM
M.B. - MACHINE BOLT
MFG. MANUFACTURER'S
MIL. - MILLIMETER
MIN. - MINIMUM
MISC. - MISCELLANEOUS
N. - NORTH
NF - NATIONAL FOREST
NO. - NUMBER
NRCS - NATURAL RESOURCES
CONSERVATION SERVICE
N.T.S. - NOT TO SCALE
MOD. - MODEL
O.C. - ON CENTER
OD - OUTSIDE DIAMETER
OHW - ORDINARY HIGH WATER
OSB - ORIENTED STRAND BOARD
PAV'T - ASPHALT CONCRETE PAVEMENT
PE - PROFESSIONAL ENGINEER
PK - PARKER KALON NAIL
PL - PLATE
PT - PRESSURE TREATED
REQ'D - REQUIRED
RT - RIGHT
S. - SOUTH
SEC. - SECTION
S.F. - SQUARE FEET
SHT. - SHEET
SPEC'S. - PROJECT SPECIFICATIONS
S.S. - STAINLESS STEEL
TBM - TEMPORARY BENCH MARK
TYP - TYPICAL
UFW - UPPER FISHWAY
US - UNITED STATES
VERT. - VERTICAL
W. - WEST
WA. - WASHINGTON
WRIA - WATER RESOURCE INVENTORY AREA
WSDOT - WASHINGTON STATE DEPARTMENT
OF TRANSPORTATION
W.S. - WATER SURFACE
PROJECT DESCRIPTION:
REMOVE EXISTING CULVERTS, RIP RAP AND
APPURTENANCES. REPLACE WITH A BRIDGE. RESTORE
STREAMBED CHANNEL AS SHOWN ON THE PROPOSED
PLANS.
PROJECT PARTNERS:
WASHINGTON DEPARTMENT
OF FISH & WILDLIFE
WASHINGTON DEPARTMENT OF STATE PARKS
SHEET 3 OF 11
CAD NO. PARKCODE-PROJECTCODE-YEAR-FILENAME
ACTION BY DATE
U) z
U)
DESIGNED KLK 09/31 /23
DRAWN TG 09/31/23
CHECKED (FIELD) XXX XX/XX/XX
CHECKED (HOOTS.) XXX XX/XX/XX
PROJECT ENGINEER
WASHINGTON
STATE
PARKS
AND
RECREATION
COMMISSION
WILLAPA HILLS
STATE PARK TRAIL
FISH PASSAGE &
HABITAT
RESTORATION
PROJECT
GENERAL NOTES
SCALE
IF SHEET IS LESS THAN
44 LF EX. 36-INCH-------
CONCRETE CULVERT
@ 0.50%
US IE 83.98
OS IE 83.76
EXISTING STA 3+35.88 = -------
PROPOSED STA 10+83.69
MATCH EXISTING CULVERT
ELEVATION 83.76
PK #2-�
PROPOSED FISH SCREEN-
PROPOSED COFFER DAM -
PROPOSED BY-PASS PIPE--
PROPOSE O BY-PASS PIP E--------t'-----th���-�====-�•'--+---\-�� 1 30LF SI LT FENCE-----��====�7tl=:=:t�:::::�9;6�
����-��t�'s;:---��H
STAGING AREA ( ENGINEER ANO� /,., "? __ _____..
CONTRACTOR TO DEFINE EXACT
'( STAGING AREA. CONSTRUCTION
ENTRANCE OFF PAGE 430' TO
WEST).
I
EX I STING ST A 2 + 5 2. 1 2 = ____ __j__-1-'--.\-----�'.'....___-�L---t------.'!i"''rH�
PROPOSED STA 10+00.00
MATCH EXISTING ELEVATION 80.87
CONSTRUCTION LIMITS, 730' ---
HIGH VISIBILITY FENCE
PROPOSED FISH SCREEN
PROPOSED BY-PASS PIPE----
'------91
-=-------_:97 98
91---------'.--�
96_
HUB #1
91-
_92-------------
93 ______.,.
�- CONSTRUCTION LIMITS
'-----------P K # 1
Scale: 1" - 20'
ENTRANCE
I
�ALTERNATE STAGING AREA
-- ( ENGINEER ANO CONTRACTOR
CAD NO. PARKC0DE-PR0JECTC0DE-YEAR-FILENAME
ACTION
DESIGNED
DRAWN
CHECKED (FIELD)
CHECKED (HOOTS.)
BY DATE
0.
0.
z
Cf) z z
KLK 09/31 /23
TG 09/31/23
XXX XX/XX/XX
XXX XX/XX/XX
PROJECT ENGINEER
TO DEFINE EXACT STAGING t---------_.
AREA)
PROPOSED 100' LONG x 1 O' WIDE BRIDGE
(DESIGNED BY OTHERS)
WASHINGTON
STATE
PARKS
...__140LF SILT FENCE
AND
CONSTRUCTION LIMITS, 730' RECREATION
HIGH VISIBILITY FENCE
�-61 LF EX. 2-36-INCH
CONCRETE CULVERT
@ 2.78%
US IE 83.10
OS IE 82.70
TO BE REMOVED
ADDITIONAL DETAILS FOR EROSION CONTROL ARE
AVAILABLE IN THE 2019 STORMWATER MANAGEMENT
MANUAL FOR WESTERN WASHINGTON.
BMP C101:
BMP C103:
BMP C107:
BMP C150:
BMP C233:
PRESERVING NATURAL VEGETATION
HIGH VISIBILITY FENCE
CONSTRUCTION ROAD/PARKING AREA
STABILIZATION
MATERIALS ON HANO
SILT FENCE
COMMISSION
WILLAPA HILLS
STATE PARK TRAIL
FISH PASSAGE &
HABITAT
RESTORATION
PROJECT
EROSION CONTROL
& DEWATERING
PLAN
SCALE
o"---1"
EROSION CONTROL & DEWATERING PLAN SHEET 4 OF 11
IF SHEET IS LESS THAN
SILT FENCE NOTES:
1. FILTER FABRIC SHALL BE PURCHASED CONTINUOUS ROLL CUT TO
LENGTH AS NEEDED. IF JOINTS ARE NECESSARY FABRIC SHALL BE
SPLICED TOGETHER ONLY AT SUPPORT POSTS WITH A MINIMUM OF
(6) INCH OVERLAP. BOTH ENDS SHALL BE SECURED AS REQUIRED.
2. SILT FENCING SHALL BE INSTALLED TO FOLLOW CONTOURS. FENCE
POSTS SHALL BE SPACED A MAXIMUM OF EIGHT (8) FEET APART
UNLESS OTHERWISE SHOWN HEREIN. ALL POSTS SHALL BE DRIVEN
INTO THE GROUND A MINIMUM OF 30 INCHES.
3. A TRENCH SHALL BE EXCAVATED, ROUGHLY EIGHT (8) INCHES WIDE
BY EIGHT (8) INCHES DEEP UPSLOPE AND ADJACENT TO THE POST
TO ALLOW THE FILTER FABRIC TO BE BURIED.
4. WHEN STANDARD STRENGTH FILTER FABRIC IS UTILIZED, A WIRE SINGLE
SPACE MESH SUPPORT FENCE SHALL BE FASTENED TO THE UPSLOPE
SIDE OF THE POSTS (BETWEEN THE POST AND THE FILTER FABRIC
USING ONE (1) INCH MINIMUM LENGTH WIRE STAPLES, TIE WIRE OR
APPROVED HOG RINGS. ALL WIRE SUPPORT SHALL EXTEND INTO THE
TRENCH A MINIMUM OF FOUR (4) INCHES AND SHALL NOT EXTEND
MORE THAN 36 INCHES ABOVE ORIGINAL GRADE.
5. ALL FILTER FABRIC SHALL BE STAPLED OR WIRED TO SUPPORT FENCING
AND A MINIMUM OF 20 INCHES OF FABRIC SHALL BE EXTENDED INTO
THE TRENCH. FILTER FABRIC SHALL NOT BE STAPLED OR FASTENED TO
EXISTING TREES OR STRUCTURES UNLESS OTHERWISE DIRECTED BY THE
ENGINEER.
6. IF HIGH STRENGTH FILTER FABRIC AND CLOSER POST SPACING (4 FOOT
ON CENTER OR LESS) ARE USED, THE WIRE SUPPORT FENCING MAY BE
ELIMINATED. HIGH STRENGTH FABRIC SHALL BE STAPLED OR WIRED
DIRECTLY TO POSTS AS REQUIRED BY THE ENGINEER.
7. TRENCH SHALL BE BACKFILLED WITH 3/4 INCH MINIMUM DIAMETER
WASHED GRAVEL OR OTHER SIMILAR SOURCE AS APPROVED BY THE
ENGINEER.
8. SILT FENCING SHALL BE INSTALLED WHERE SHOWN ON THE PLAN, OR
AS MARKED IN THE FIELD BY THE ENGINEER, PRIOR TO COMMENCEMENT
OF WORK. ALL FENCING SHALL BE INSPECTED DAILY DURING CONSTRUCTION
AND AFTER EACH SIGNIFICANT RAINFALL EVENT UNTIL SITE HAS BEEN
PERMANENTLY STABILIZED. ANY REQUIRED REPAIRS SHALL BE MADE
IMMEDIATELY.
9. REMOVAL OF TRAPPED SEDIMENT SHALL BE PERFORMED WHEN
AMOUNTS REACH APPROXIMATELY 1 /3 HEIGHT OF THE FENCE ABOVE
GROUND OR SOONER.
10. SILT FENCING SHALL REMAIN IN-PLACE UNTIL SITE HAS BEEN
RE-VEGETATED TO ORIGINAL CONDITION OR DIRECTED BY THE ENGINEER.
COIR WATTLE./FASCINES INSTALLATION NOTES (IF NEEDED):
1. DESIGN BANK SLOPE VARIES, SEE PLAN VIEW.
2. INSTALL EROSION CONTROL COIR WATTLES AT THE WATER EDGE
AT TOE OF SLOPE TO DEPTH OF � HEIGHT OF WATTLE.
3. TIE ENDS OF COIR WATTLES TOGETHER WITH COIR TWINE FOR A
CONTINUOUS LINEAR SYSTEM.
4. DRIVE WOODEN STAKES NEXT TO THE COIR WATTLE EXTENDING 8"
ABOVE GROUND. TIE COIR WATTLE TO THE STAKES EVERY 3 FEET.
5. TRENCH ENDS OF COIR LOGS INTO THE BANK A MINIMUM OF 3
FEET AND COVER WITH COMPACTED SOIL.
6. BACKFILL ON UPSLOPE SIDE OF COIR WATTLE WITH NATIVE SOIL
AND STABILIZE WITH SPECIFIED VEGETATION.
7. SUPPLEMENTAL PLANT PLUGS MAY ALSO BE INSERTED INTO THE
COIR WATTLE.
2"X 2" WOOD-�
POST OR STEEL
POST AT 8' O.C.
FILTER FABRIC
MATERIAL
II
FASTEN WITH STAPLES OR, 'II WIRE RINGS (TYP.) '\)
11 11
• iL 8"X8" TRENCH --- 1L-- -------
11 11
11 11
8' MAX.
2"X2" 1 4 GA. --�
WELDED WIRE FABRIC
OR EQUAL
I y������
- ��%'W'
-II - rol '°
II �
I
Li Li �--�
BURY BOTTOM OF FILTER
FABRIC MATERIAL IN 8"X8"
TRENCH BACKFILL AS
SPECIFIED.
TYPICAL SILT FENCE DETAIL
N.T.S.
2"X 2"X 14 GA.
WIRE FABRIC OR
EQUIVALENT
FILTER FABRIC-,
MATERIAL
2"X 2" WOOD ----
POST OR STEEL
POST AT 8' O.C.
I
MIN.
6"
TYPICAL SILT FENCE SECTION VIEW
N.T.S.
BACKFILL WITH NATIVE
SOIL AND SEED.
EROSION CONTROL
BLANKET OR COIR MAT
WATTLE/
FASCINES
COIR TWINE
WOODEN SUPPORT STAKE
WATER LEVEL
SECTION VIEW
N.T.S.
EROSION CONTROL NOTES & DETAILS SHEET 5 OF 11
CAD NO. PARKC0DE-PR0JECTC0DE-YEAR-FILENAME
ACTION BY DATE
en z en z
DESIGNED KLK 09/30/23
DRAWN TG 09/30/23
CHECKED (FIELD) XXX XX/XX/XX
CHECKED (HOOTS.) XXX XX/XX/XX
12-/rr/J--•1,,1, PROJECT ENGINEER
WASHINGTON
STATE
PARKS
AND
RECREATION
COMMISSION
WILLAPA HILLS
STATE PARK TRAIL
FISH PASSAGE &
HABITAT
RESTORATION
PROJECT
EROSION CONTROL
NOTES & DETAILS
SCALE
IF SHEET IS LESS THAN
NOTE:
EXTREME CARE SHALL BE TAKEN TO ENSURE
THAT NO PETROLEUM PRODUCTS, HYDRAULIC
FLUID, SEDIMENT LADEN WATER, CHEMICALS, OR
ANY OTHER DELETERIOUS MATERIALS ARE
ALLOWED TO ENTER THE STREAM. ALL
CONTAINERS AND EQUIPMENT SHALL BE
MAINTAINED FREE OF LEAKS AND STORED SUCH
THAT LEAKAGE CANNOT DRAIN OR LEACH INTO
THE STREAM. TEMPORARY FISH SCREEN.
INSTALL PER WDFW STANDARDS 1
I
(SEE NOTE THIS SHEET) SITE I
SCREEN AT POOL LOCATION TO I
PREVENT IMPINGEMENTS. I
I I I I
I I I I I I
EXISTING :
ROAD I
- - TOP BANK- - - - - -Top BANK-
Q) 71---
-TOE-.
FLOW� STREAM - CHANNEL -+-1---
--ToE-'..._ ._ . , �
PUMP
SET
UP
AREA
FISH SCREEN. MONITOR AND
CLEAR DEBRIS AS REQUIRED.
PEA GRAVEL SANDBAG
OR NATIVE STREAMBED
GRAVEL PLACED BY
HAND.
PLACE STRAW BALE BARRIER
ALONG LOW SIDE OF
INFILTRATION SITE.
I
EXISTING :
ROAD I
I
I
I I I I iT;J.J.---PUMP STANDING WATER FROM
CONSTRUCTION AREA TO UPLAND
INFILTRATION SITE. (SITE TO BE
STAKED IN FIELD BY ENGINEER
PRIOR TO CONSTRUCTION).
TYPICAL DEWATERING
SCALE: N.T.S.
PEA GRAVEL SANDBAG
DAM 2' -0" HIGH MIN.
6 MIL. POLYETHYLENE
PLASTIC SHEETING.
12" DEWATERING PIPE----._
TOE IN FRONT OF
PLASTIC INTO
STREAM BED 1 : 1
FLOW� MIN., 1'-0" DEEP.
d �
- - - �. -y-.::..... -
NOTE:
1. REMOVE ALL COMPONENTS AND RESTORE AREAS DISTURBED BY DE-WATERING FACILITY FOLLOWING CONSTRUCTION.
2. INSTALL SHORT STREAM DIVERSIONS AT INDIVIDUAL LOCATIONS WHERE THE PROPOSED STREAM ALIGNMENT MEETS THE
EXISTING STREAM ALIGNMENT, AND WHERE WHERE STRUCTURES WILL BE REMOVED.
STAGING AREA TO BE DETERMINED
BY THE ENGINEER AND THE
CONTRACTOR AT THE PRE
CONSTRUCTION CONFERENCE.
,---;_.3 (z)
TEMPORARY FISH SCREEN.
INSTALL PER WDFW STANDARDS
(SEE NOTE THIS SHEET)
_ -TOP BANK- - -
(D ALL WORK SHALL BE IN ACCORDANCE WITH HPA.
DURING CONSTRUCTION (IF REQUIRED) STREAM FLOW
SHALL BE DIVERTED THROUGH BYPASS PIPE. DIVERSION
SHALL BE APPROVED BY PROJECT ENGINEER
PRIOR TO REMOVING EXISTING CULVERTS.
PLACE BAGS FILLED WITH PEA GRAVEL TO SEAL
BYPASS INLET AND OUTLET (IF DIVERSION REQUIRED).
SCHEMATIC
ISOLATED
WORK
AREA
EXCAVATE EXISTING FILL.
- TOE---- . , _
PLACE NEW BED MATERIAL MIX AND REMOVE
BYPASS PIPE (IF INSTALLED).: ,,=,
SCREEN
iff?;iS]lf if}\
COVER ALL EXPOSED SOIL WITH STRAW MULCH
AND GRASS SEED. (SEE SHEET 11 FOR PLANTINGS).
REMOVE DIVERSION BAGS AND FISH SCREENS
BY HAND (IF INSTALLED).
NOTE: (IF BYPASS REQUIRED)
STREAM BYPASS TO BE INSTALLED AND ACTIVE PRIOR TO WORK
WITHIN OHW. BYPASS TO REMAIN ACTIVE DURING ALL TIMES UNTIL
CULVERT AND STREAM WORK IS COMPLETE.
WOVEN WIRE MESH PROFILE BAR PERFORATED PLATE
0.087 inch 1.75 mm 0.094 inch
2.2 mm 2.4 mm
(6-14 mesh) (3/.32 inch)
THE MAXIMUM OPENING APPLIES TO THE ENTIRE SCREEN
STRUCTURE INCLUDING THE SCREEN MESH, GUIDES, AND
SEALS. THE PROFILE BAR CRITERIA IS APPLIED TO THE
NARROW DIMENSION OF RECTANGULAR SLOTS OR MESH.
THE ALLOWABLE WOVEN WIRE MESH OPENINGS IS THE
GREATEST OPEN SPACE DISTANCE BETWEEN MESH WIRES.
* VERIFY SCREENING MATERIAL MEETS PERMIT REQUIREMENTS.
MESH SIZE
PEA GRAVEL SANDBAG
DAM 2' -0" HIGH MIN.
SHAPE
FLOW�
AND TYPE OF MATERIAL
FISH SCREEN. MONITOR AND
CLEAR DEBRIS AS REQUIRED.
PEA GRAVEL SANDBAG
OR NATIVE STREAM BED
GRAVEL PLACED BY
HAND.
TYPICAL DEWATERING SECITON (IF REQUIRED)
Scale: N.T.S. SHEET 6 OF 11
CAD NO. PARKC0DE-PR0JECTC0DE-YEAR-FILENAME
ACTION BY DATE
z
Cf) z z
DESIGNED KLK 09/31 /23
DRAWN TG 09/31/23
CHECKED (FIELD) XXX XX/XX/XX
CHECKED (HOOTS.) XXX XX/XX/XX
PROJECT ENGINEER
WASHINGTON
STATE
PARKS
AND
RECREATION
COMMISSION
WILLAPA HILLS
STATE PARK TRAIL
FISH PASSAGE &
HABITAT
RESTORATION
PROJECT
DEWATERING
NOTES & DETAILS
SCALE
IF SHEET IS LESS THAN
22"x.34" IT IS A REDUCED SET
PROPOSED FUTURE CL -
STREAMBED ALIGNMENT. CONSTRUCTION LIMITS�
44 LF EX. 36-INCH
CONCRETE CULVERT
NOT PART OF THIS CONTRACT.
@ 0.50%
US IE 83.98
OS IE 83.76
PLACE EXISTING ANGULAR ROCK FROM--�
CHANNEL TO SURROUND EXISTING CULVERT
OUTLET TO SUPPORT SLOPE AS NEEDED.
EXISTING STA 3+35.88 =---�
PROPOSED STA 1 0+83. 69
MATCH EXISTING CULVERT
ELEVATION 83. 76
2 O LF NEW ROUGH EN ED ------17r-;,�r7�=::::::____�L_����STREAMBED CHANNEL �/°"'
@ 1 0. 2 7 % z...______94 -
GRADE BREAK & ANGLE POINT
ELEVA Tl ON
1 .
;1:tr _ _____..64LF NEW
STREAMBED CHANNEL
@ 1.33%
EXISTING STA 2+52.12 =
PROPOSED STA 10+00.00
MATCH EXISTING ELEVATION 80.87
'-------91
... ,r.r···
HUB #1
91---------..._
93 ____ -./
Scale: 1" -
"----PK # 1
---------i---PROPOSED 100' LONG x 1 O' WIDE BRIDGE
(DESIGNED BY OTHERS)
'--------CONSTRUCTION LIMITS
20'
\._-61 LF EX. 2-36-INCH
CONCRETE CULVERT
@ 2.78%
US IE 83.1 0
OS IE 82.70
TO BE REMOVED
PROPOSED STREAMBED ALIGNMENT
NOTE:
ENGINEER TO DIRECT FINAL GRADING OF CHANNEL.
ENGINEER TO DIRECT PLACEMENT OF ROUGHENED
CHANNEL MATERIALS.
ALL TREES TO BE REMOVED FOR DEMOLITION TO
BE TEMPORARILY STOCKPILED TO BE PLACED IN
CHANNEL AS DIRECTED BY THE ENGINEER.
SHEET 7 OF 11
CAD NO. PARKC0DE-PR0JECTC0DE-YEAR-FILENAME
ACTION BY DATE
a.
a.
Cf) z z
DESIGNED KLK 09/31 /23
DRAWN TG 09/31/23
CHECKED (FIELD) XXX XX/XX/XX
CHECKED (HOOTS.) XXX XX/XX/XX
PROJECT ENGINEER
WASHINGTON
STATE
PARKS
AND
RECREATION
COMMISSION
WILLAPA HILLS
STATE PARK TRAIL
FISH PASSAGE &
HABITAT
RESTORATION
PROJECT
SCALE
STREAM BED
ALIGNMEN-r o"---1"
IF SHEET IS LESS THAN
EXISTING STA 3+35.88 = ----
PROPOSED STA 10+83.69
MATCH EXISTING CULVERT
ELEVATION 83. 76
PROPOSED BRIDGE DECK---
ELEVATION 99.00
(DESIGNED BY OTHERS)
EXISTING STA 2+52.12 = ---
-- 44 LF EX. 36-INCH
CONCRETE CULVERT
@ 0.50%
US IE 83.98
DS IE 83.76
PROPOSED STA 10+00.00 �
MATCH EXISTING ELEVATION 80.87 1::0--,· -----,-----,------------,-------------,---=-------;:---'-----r'-----=';=--:.._,-"-----,---=-=---cr=----'---A-
------,-----------,--- ��□---A-j--
I
I go-t--+--+---t---t--+--+--+--+--+--+--+------n-\-+--+-� / --4---'---++------+----+---+--------+-------+--+--+--+--+--+--+--+---+---+---+-/ .\�·---+f-
Bu a:
0+75 0+00 1+00
61 LF EX. 2-36-INCH
CONCRETE CULVERT
@ 2.78%
US IE 83.10
OS IE 82.70
TO BE REMOVED
2+00 /
64LF NEW STREAMBED___,
CHANNEL @ 1 .33%
\ r - - _I_ -f----l7 7 \ \ 3+00 4+00
5+00
�-PROPOSED FUTURE CL
STREAMBED GRADE
6+00
NOT PART OF THIS CONTRACT.
20LF NEW ROUGHENED
STREAMBED CHANNEL
@ 10.27%
�STA 10+63.69
GRADE BREAK & ANGLE POINT
ELEVATION 81 .83
PROPOSED STREAM PROFILE
Scale: Horz. 1" - 40' Ve rt. 1 " = 1 0 '
7+00
-C-
-,5 -C-
,0
-5
-C-u
-o
SHEET 8 OF 11
CAD NO. PARKC0DE-PR0JECTC0DE-YEAR-FILENAME
ACTION BY DATE
Q.
Q.
z z z
DESIGNED KLK 09/31/23
DRAWN TG 09/31/23
CHECKED (FIELD) XXX XX/XX/XX
CHECKED (HDQTS.) XXX XX/XX/XX
PROJECT ENGINEER
WASHINGTON
STATE
PARKS
AND
RECREATION
COMMISSION
WILLAPA HILLS
STATE PARK TRAIL
FISH PASSAGE &
HABITAT
RESTORATION
PROJECT
STREAM PROFILE
SCALE
o"---1"
IF SHEET IS LESS THAN
22"x34., IT IS A REDUCED SET
100' LONG x 1 O' W IDE BR IDGE
(BY OTHERS) DECK ELEVATION 99.00
111!!!!!1"-
_ -- 98
'---___ 94-------�
'-.---93---------, '------92------------, 91-----------, STA 1 +30. 95 (TRA IL)
END BR IDGE
STA 1 . 95 (TRA IL)
END TRA IL GRAD ING
MATCH EX IST ING
CAD NO. PARKC0DE-PR0JECTC0DE-YEAR-FILENAME
ACTION
DESIGNED
DRAWN
CHECKED (FIELD)
CHECKED (HDQTS.)
BY DATE
"'z
<fl z
<fl
5w Cl'.
z
KLK 09/31 /23
TG 09/31/23
XXX XX/XX/XX
XXX XX/XX/XX
PROJECT ENGINEER
STA 0+ 10.95 (TRA IL) �__,
BEG IN TRA IL GRAD ING
MATCH EX ISTING STA 1 +30.95 (TRA IL) WASHINGTON
TAPER TRA IL AS DIRECTED-----' PROPOSED BRIDGE & TRAIL PLAN END BRIDGE
BY THE ENG INEER
STA 0+30.95 (TRA IL
,,-------- STA 1 +50.95 (TRA IL)
BEG IN BR IDGE
,----------1 OO' LONG x 10' W IDE BR IDGE END TRA IL GRAD ING
(BY OTHERS) DECK ELEVAT ION 99.00 MATCH EXIST ING
�TTR,RAAJILL�G�R�AajD)EEl11�.77:5�%7a -===��T-----,-----1�1---�-l---=---=-�=:__:;�=:__:__:_���-------r��---iE�L�EV�A�T�ION 98.95
Scale: 1" = 1 O'
J
9ai------t1-- f--t--��-�\'___�/�
\ � I �-+-
________.'l
�------h--------l------L,o
81�1/l-+��-tt--A-�-------t---\-�--L-�5 '----TRA IL GRADE -0.25%
STA 0+ 10.95 (TRA IL) _ _J
BEGIN TRA IL GRADING
MATCH EXIST ING
ELEVAT ION 99.35
STA 0+30.95 (TRA IL) �__,
BEG IN BRIDGE
0+00
61 LF EX. 2-36- INCH-_,,,
CONCRETE CULVERT
@ 2.78%
US IE 83.10
DS IE 82.70
TO BE REMOVED
1+00 �-MONOL ITH IC PRECAST CONCR lfE
ABUTMENT DES IGNED BY OTHERS
�-PROPOSED CHANNEL CROSS-SECT ION
SEE DETAIL SHEET 10 OF 11
PROPOSED BRIDGE & TRAIL PROFILE
Scale: HORZ. 1" = 1 o' VERT. 1" = 2'
SHEET 9 OF 11
STATE
PARKS
AND
RECREATION
COMMISSION
WILLAPA HILLS
STATE PARK TRAIL
FISH PASSAGE &
HABITAT
RESTORATION
PROJECT
BRIDGE & TRAIL
PLAN & PROFILE
SCALE O .. ___ 1 '
IF SHEET IS LESS THAN
NOTE:
VARIES -
i PROPOSED CHANNEL r VARIES
NEW CHANNEL THALWEG
DISTURBED AREAS TO BE PLANTED AS PER
5.26% 34.4% 2.00%
THE PLANTING NOTES & SCHEDULE SHEET 11. 2 (MIN.)
,..-....-,.,������� l!!'"""l'�F 0.1' EDGE CHANNEL
1.0' MAIN CHANNEL
0.12' LOW FLOW CHANNEL
3.0' NEW STREAMBED
STREAMBED GRAVEL MIX 4.7' 4.7'
2.9' 2.9'
2.4' ..
2.4'
TYPICAL CHANNEL CROSS SECTION
1"- 2' rD
DECK EL.= 99.00
C
� "_ . ·"·I".
�-. ====· , .. -�"kfm;-"®}.' ·,• ,.,, -����-.�-I ,�D ��===��I ===�K=A �====
,·.-•··•·· co
INSTALL BACKWALL AS PER
BRIDGE MANUFACTURERS
SPECIFICATIONS.
LEGEND:
B
G
A 4" MINIMUM DEPTH CRUSHED
SURFACING TOP COURSE IN
ACCORDANCE WITH WSDOT STANDARD
SPECIFICATIONS FOR ROAD, BRIDGE
AND MUNICIPAL CONSTRUCTION 2022.
8. BALLAST ROCK IN ACCORDANCE WITH
WSDOT STANDARD SPECIFICATIONS
FOR ROAD, BRIDGE AND MUNICIPAL
CONSTRUCTION 2022.
C. GUARDRAIL DESIGNED BY OTHERS.
STREAMBED GRAVEL MIX
SEE NOTE THIS SHEET.
TYPICAL
N.T.S.
BRIDGE
D. ASSUMED PRE-CAST ABUTMENTS.
(2.5' WIDE x 1.5' HIGH x 14' LONG)
DESIGNED BY OTHERS.
E. MAINTAIN A MINIMUM 1 .5' CLEARANCE.
F. NON WOVEN GEOTEXTILE, MIRAFI 160H
OR EQUIVALENT.
G. COMPACTED NATIVE MATERIAL.
J yQ100 EL.- 91.66 yQ z EL.= 83.65
SECTION
H. COVER EXCAVATED FILL WITH 1 FOOT
OF TOPSOIL AND MULCH ACCORDING
TO SPECIFICATIONS. SEE PLANTING
SCHEDULE AND NOTES SHEET 11
I. BRIDGE DELINEATER
J. BRIDGE DEPTH 2.5'
K. 4.25" CORRUGATED DECK WITH
CONCRETE WEARING SURFACE
L. 3' MINIMUM WIDTH
M. ASSUMED 4' WIDE x 3' HIGH x 15'
LONG STRUCTURAL BASE MATERIAL.
GRAVEL MIX. IF STREAMBED
GRAVEL MATERIAL IS FOUND
IN GROUND WHILE EXCAVATING.
TO BE APPROVED BY THE
ENGINEER.
STREAMBED MATERIAL SPECIFICATION
*STREAMBED MATERIAL GRADATION
PER W.S.D.O.T. STD SPECIFICATION
FOR ROAD, BRIDGE AND MUNICIPAL
CONSTRUCTION SECTION 9.03
STREAMBED GRAVEL MIX AND ROUGHENED
CHANNEL MIX TO BE MIXED ONSITE
(EXCEPT BOULDERS, > 12").
STREAMBED GRAVEL MIX
D100 = 6" D84 - 2 1/4" D50 - 3/ 4" D36 = 1/4"
D10 = SILT
3" - 6" = 5% MAX.
1" - 3" = 35%
SAND - 1" = 55%
SAND/CLAY = 5% MIN .
1 PART 6" COBBLES, 9.03.11 (2)
9 PARTS STREAMBED SEDIMENT, 9.03.11 (1)
STREAMBED MATERIAL SHALL BE APPROVED BY
THE ENGINEER BEFORE PLACEMENT. PARTICLES
WITHIN A GIVEN RANGE SHALL BE DISTRIBUTED
EVENLY WITHIN RANGE.
ROUGHENED CHANNEL MIX
D100 = 36" D84 - 18" D50 - 7" D36 - 4 1 /4" D10 - 1/2"
28" - 36" - 10% . MAX.
1 8" - 28" - 20% 12" - 18" - 25% 6" - 12" = 5% 4" - 6" = 1 0% 2" - 4" = 10%
SAND - 2" = 10%
SAND/CLAY = 10% MIN.
ROUGHENED CHANNEL MATERIAL SHALL BE
APPROVED BY THE ENGINEER BEFORE
PLACEMENT. PARTICLES WITHIN A GIVEN RANGE
SHALL BE DISTRIBUTED EVENLY WITHIN RANGE.
3.0' DEPTH TRANSITION ROUGHENED CHANNEL
INTO STREAMBED MATERIAL GRADUALLY OVER 8'
IN LENGTH TO BE DIRECTED BY ENGINEER.
ROUGHENED CHANNEL ELEVATION TO BE
APPROXIMATELY 6" HIGHER THAN FINAL GRADE
TO ALLOW FOR SETTLING.
BRIDGE AND STRUCTURAL ELEMENTS BY OTHERS
(PRE-CAST ABUTMENTS, STRUCTURAL BASE
MATERIAL, AND OTHER DETAILS TO BE CONFIRMED
TO SUPPORT FINAL BRIDGE LOAD).
PROJECT NOTES & DETAILS SHEET 10 OF 11
CAD NO. PARKCODE-PROJECTCODE-YEAR-FILENAME
ACTION BY DATE
Cf) z iii w O'.
z
DESIGNED KLK 09/31/23
DRAWN TG 09/31/23
CHECKED (FIELD) XXX XX/XX/XX
CHECKED (HOOTS.) XXX XX/XX/XX
PROJECT ENGINEER
WASHINGTON
STATE
PARKS
AND
RECREATION
COMMISSION
WILLAPA HILLS
STATE PARK TRAIL
FISH PASSAGE &
HABITAT
RESTORATION
PROJECT
PROJECT NOTES &
DETAILS
SCALE
IF SHEET IS LESS THAN
�-CONSTRUCTION IMPACTED
AREA (REMAINING AREA)
REPLANTING
S cole: 1
-::c------
I
20'
HUB #1
DISTURBED AREA PLANTING NOTES:
EVENLY DISTRIBUTE SALMONBERRY, SNOWBERRY,
AND OREGON GRAPE AT 3-5' ON CENTER.
CAD NO. PARKC0DE-PR0JECTC0DE-YEAR-FILENAME
• PLANTING ZONES PROVIDED ARE APPROXIMATE. APPROPRIATE PLANT 0------------+---o
SPECIES AND DISTRIBUTION VARY WITH EACH INDIVIDUAL SITE AND
,---92 _____ __
93 ____ ___,,, '----PK # 1
PLANT SPECIES CHARACTERISTICS.
HERBACEOUS PLANTINGS MIGHT BE APPROPRIATE WITH WOODY
PLANTINGS.
PLANTING TO OCCUR WINTER OR EARLY SPRING .
PLANTS SHALL BE MIN. 2-YRS. OLD.
IF BARE ROOT STOCK USED, PLANTS SHALL BE PLANTED WITHIN
(2) DAYS.
EVENLY DISTRIBUTE CEDAR, MAPLE AND FIR
1 O' - 15' ON CENTER.
�- CONSTRUCTION IMPACTED REPLANTING
AREA (REMAINING AREA)
SOUTH FACING ROBERTSON ROAD SLOPE
SPACING
3' -5' ON CENTER
APPROXIMATELY 100 PLANTS
RIPARIAN PLANTINGS
1 GAL SNOWBERRY
1 GAL OREGON GRAPE
1 GAL RED ALDER
1 GAL SALMONBERRY
CONSTRUCTION IMPACTED REPLANTING AREA (REMAINING AREA)
SPACING
3'-5' ON CENTER
APPROXIMATELY 400 PLANTS
1 O' - 15' ON CENTER
APPROXIMATELY 65 PLANTS
DO NOT PLANT TREES WITHIN 15' OF
TRAIL OR BRIDGE, OR UNDERNEATH
BRIDGE (ALDER, CEDAR, MAPLE, FIR)
3'-5' ON CENTER
SLOPE UNDER BRIDGE
APPROXIMATELY 20 PLANTS
RIPARIAN PLANTINGS
1 GAL SNOWBERRY
1 GAL OREGON GRAPE
1 GAL SALMONBERRY
1 GAL WESTERN RED CEDAR
1 GAL BIG LEAF MAPLE
1 GAL DOUG FIR
LIVESTAKE WILLOW
LIVESTAKE SALMONBERRY
SHEET 11 OF 11
ACTION BY DATE
z en z Q en
UJ
C( z
DESIGNED KLK 09/30/23
DRAWN TG 09/30/23
CHECKED (FIELD) XXX XX/XX/XX
CHECKED (HDQTS.) XXX XX/XX/XX
PROJECT ENGINEER
WASHINGTON
STATE
PARKS
AND
RECREATION
COMMISSION
WILLAPA HILLS
STATE PARK TRAIL
FISH PASSAGE &
HABITAT
RESTORATION
PROJECT
PLANTING NOTES &
SCHEDULES
SCALE
o"---1"
IF SHEET IS LESS THAN
| WHT- Fish Passage-Cover.pdf |
| Sheets and Views |
| COVER |
| WHT PAC CO BRDG PH2 - 100 Percent Design.pdf |
| Willapa Hills State Park Trail Construction Drawings_Stamped Reduced.pdf |
File details come from the government source that posted it. Updated .