Huntington Ravine Trail Bridge Plans.pdf

PROJECT LOCATION

PROJECT SITE

PROJECT LOCATION:

SHEET OF

United States Department of Agriculture Forest Service

INDEX OF SHEETS

SHEET SHEET TITLE DATE

G-01 TITLE SHEET 5/16/2025

C-02 DESIGN DATA & GENERAL NOTES 5/16/2025

C-03 QUANTITIES & MISCELLANEOUS DETAILS 5/16/2025

C-04 TEMPORARY TRAIL CLOSURE 5/16/2025

C-05 TYPICAL SECTIONS 5/16/2025

C-06 PLAN OF SITE 5/16/2025

C-07 PROFILE OF SITE 5/16/2025

C-08 PLAN OF STRUCTURE 5/16/2025

C-09 ABUTMENT PLAN 5/16/2025

C-10 STRUCTURE DETAILS 5/16/2025

FROM THE NH-16 / HUNTINGTON RAVINE TRAILHEAD INTERSECTION

OF PICKHAM'S GRANT, NEW HAMPSHIRE HEAD NORTHWEST ON

APPALACHIAN NATIONAL SCENIC TRAIL FOR 200 FEET, THEN

CONTINUE STRAIGHT ONTO TUCKERMAN RAVINE TRAIL. CONTINUE

ON TUCKERMAN RAVINE TRAIL FOR 1.6 MILES, THEN TURN RIGHT

ONTO HUNTINGTON RAVINE TRAIL. CONTINUE ON HUNTINGTON

RAVINE TRAIL FOR 0.1 MILES TO THE BRIDGE LOCATION.

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EASTERN REGION

WHITE MOUNTAIN NATIONAL FOREST - ANDROSCOGGIN RANGER DISTRICT

COOS COUNTY

NEW HAMPSHIRE

HUNTINGTON RAVINE TRAIL BRIDGE #1

REPLACEMENT @ MP 0.120

STRUCTURE NUMBER: 092202-31393-0.1200 (LAT 44.2650, LONG -71.2792)

PROPOSED STRUCTURE DESCRIPTION:

41 FOOT (OVERALL LENGTH) 24 FOOT MAIN SPAN AND 17 FOOT

APPROACH SPAN STEEL GIRDER BRIDGE WITH A TIMBER

DOWEL-LAM DECK ON STEEL GRADE BEAM FOUNDATIONS.

95% PLANS

RECOMMENDED BY:

FOREST ENGINEER

DISTRICT RANGER

DATE

APPROVED:

R9 DIRECTOR OF ENGINEERING DATE

DATE

FOREST SUPERVISOR DATE

R9 BRIDGE PROGRAM MANAGER DATE

PROJECT

LOCATION

TO GORHAM

TUCKERMAN RAVINE TRAIL

HUNTINGTON RAVINE TRAIL

BOOTT SPUR TRAIL

APPALACHIAN

NATIONAL

SCENIC TRAIL

APPALACHIAN

NATIONAL

SCENIC TRAIL

NH-16

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U.P. ENGINEERS & ARCHITECTS, INC.

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ENGINEERING ARCHITECTURE PLANNING SURVEYING ENVIRONMENTAL

DRAWING TITLE

PROJECT NAME

DRAWN

DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

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EASTERN REGION

HUNTINGTON RAVINE

TRAIL BRIDGE #1

REPLACEMENT @ MP 0.120

WHITE MOUNTAIN

NATIONAL FOREST

ANDROSCOGGIN

RANGER DISTRICT

DESIGN DATA &

GENERAL NOTES

5/16/2025

D.CARTER

J.ALLEN

G.JUNTTILA

U28-04493

C-02

10 2

GENERAL NOTES:

EXCEPT WHERE OTHERWISE INDICATED ON THESE PLANS OR IN THE SUPPLEMENTAL SPECIFICATIONS, ALL MATERIALS AND WORKMANSHIP SHALL BE IN ACCORDANCE WITH THE FHWA STANDARD SPECIFICATIONS FOR CONSTRUCTION OF ROADS AND BRIDGES ON FEDERAL HIGHWAY PROJECTS, FP-14.

THE PROPOSED IMPROVEMENTS COVERED BY THESE PLANS ARE IN ACCORDANCE WITH:

AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS, 10TH EDITION, 2024

AASHTO GUIDELINES FOR GEOMETRIC DESIGN OF LOW-VOLUME ROADS, 2ND EDITION, 2019

FSH 7709.56b TRANSPORTATION STRUCTURES HANDBOOK (USDA FOREST SERVICE)

THE EXISTING STRUCTURE SHALL BE CHECKED AT THE TIME OF STARTING CONSTRUCTION TO SEE THAT ITS RELATIONSHIP TO THE PROPOSED WORK IS AS SHOWN ON THESE PLANS AND ANY DIFFERENCES REQUIRING CHANGES IN THE NEW WORK SHALL BE REPORTED TO THE PROJECT ENGINEER.

THE WORK COVERED BY THESE PLANS INCLUDES REMOVAL OF THE ENTIRE EXISTING BRIDGE (SALVAGING AS SPECIFIED HEREIN), INSTALLATION OF THE NEW BRIDGE AS SHOWN HEREIN. CONSTRUCTION OF THE APPROACHES TO THE LIMITS SHOWN, PLACING RIPRAP, AND SLOPE RESTORATION.

THE TRAIL WILL BE CLOSED AND A DETOUR IS NOT POSSIBLE.

THE STATIONING AS SHOWN ON THESE PLANS FOR REFERENCE POINTS ARE BELIEVED TO BE CORRECT. IT SHALL, HOWEVER, BE CHECKED AT THE TIME OF STARTING CONSTRUCTION, AND IF THE STATIONING SHOWN ON THE PLANS IS INCORRECT, IT SHALL BE REPORTED TO THE ENGINEER.

THE CONTRACTOR SHALL COORDINATE ALL OF THEIR WORK AND ANY UTILITY COMPANIES RELOCATION WORK AT NO ADDITIONAL COST TO THE

PROJECT.

FOR PROTECTION OF UNDERGROUND UTILITIES AND IN CONFORMANCE WITH PUBLIC ACT 174, THE CONTRACTOR SHALL DIAL "811" A MINIMUM OF THREE FULL WORKING DAYS, EXCLUDING SATURDAYS, SUNDAYS AND HOLIDAYS PRIOR TO BEGINNING EACH EXCAVATION IN AREAS WHERE PUBLIC UTILITIES HAVE NOT BEEN PREVIOUSLY LOCATED. MEMBERS WILL THUS BE ROUTINELY NOTIFIED. THIS DOES NOT RELIEVE THE CONTRACTOR OF THE RESPONSIBILITY OF NOTIFYING UTILITY OWNERS WHO MAY NOT BE A PART OF THE "DIG SAFE" ALERT SYSTEM.

IN LIEU OF A GEOTECHNICAL INVESTIGATION, THE FOUNDATIONS WERE DESIGNED WITH AN ASSUMED ALLOWABLE BEARING PRESSURE OF 2,000 PSF.

THE CONTRACTOR SHALL VERIFY SOILS PRIOR TO CONSTRUCTION OF ABUTMENTS BY HAND DIGGING. IF ORGANIC, SOFT OR OTHERWISE UNSUITABLE SOILS ARE ENCOUNTERED, HE SHALL CONTACT THE FOREST SERVICE CONTRACTING OFFICER REPRESENTATIVE FOR FURTHER INSTRUCTION.

WATER LEVEL IS SUBJECT TO CHANGE. THE CONTRACTOR IS RESPONSIBLE FOR DETERMINING THE EXPECTED WATER LEVELS DURING CONSTRUCTION.

NO MATERIAL SHALL BE ALLOWED TO ERODE INTO THE WATER COURSE, NOR SHALL MATERIAL BE PLACED INTO THE WATER COURSE EXCEPT AS

SHOWN ON THESE PLANS.

ALL EQUIPMENT SHALL BE CLEANED ACCORDING TO THE SPECIFICATIONS PRIOR TO USE ON THIS PROJECT. CONTRACTOR SHALL MAKE EQUIPMENT

AVAILABLE FOR INSPECTION PRIOR TO MOBILIZATION ONTO FS LANDS.

THE CONTRACTOR SHALL STOP WORK IMMEDIATELY AND NOTIFY THE FOREST SERVICE CONTRACTING OFFICER REPRESENTATIVE IF HERITAGE

RESOURCES OR HUMAN REMAINS ARE ENCOUNTERED.

NO WORK SHALL BE PERFORMED ON FEDERAL HOLIDAYS OR WEEKENDS WITHOUT PRIOR APPROVAL FROM THE FOREST SERVICE CONTRACTING

OFFICER REPRESENTATIVE.

THE CONTRACTOR SHALL PERFORM ALL IN-STREAM WORK BETWEEN JUNE 1ST THROUGH SEPTEMBER 15TH.

TREES SHALL BE CUT BETWEEN NOVEMBER 15TH AND MARCH 31ST.

SPECIFICATIONS:

ALL GRADING COMBINATIONS, AND SIZE REFER TO DOUGLAS FIR UNLESS SHOWN OTHERWISE ON THE PLANS. THE DESIGN VALUES FOLLOW LRFD BRIDGE DESIGN SPECIFICATIONS. THESE ARE THE MINIMUM REQUIREMENTS. OTHER SPECIES MAY BE USED WITH APPROVAL FROM THE FOREST SERVICE CONTRACTING OFFICER REPRESENTATIVE AND AT NO ADDITIONAL COST TO THE GOVERNMENT.

GRADING:

ALL DOUGLAS FIR-LARCH TO BE GRADED PER WCLIB STANDARD GRADING RULES. SOUTHERN PINE TO BE GRADED PER SPIB.

STEEL BEAMS AND DIAPHRAGMS SHALL BE AASHTO M270 GRADE 50 (GALVANIZED STEEL).

MATERIAL & TREATMENT:

TIMBER PRESERVATION TREATMENT SHALL BE IN ACCORDANCE WITH CURRENT STATE AND/ OR AASHTO SPECIFICATIONS. ALL TIMBER SHALL BE

TREATED WITH COPPER NAPHTHENATE HYDROCARBON SOLVENT A, PER AWPA, UC4B (MINIMUM).

REFERENCE DESIGN VALUES SHOWN ARE PER AASHTO LRFD BRIDGE DESIGN SPECIFICATIONS, 10TH EDITION, 2024 (U.N.O.)

DECK PLANK TO BE 4" DOUGLAS FIR-LARCH, NO.1 & BETTER (> 2 INCH WIDE) S2S1E. REFERENCE DESIGN VALUES (KSI): Fbo = 1.20, Fvo = 0.18, Eo = 1,800

CURB BLOCK TO BE DOUGLAS FIR-LARCH, DENSE SELECT STRUCTURAL (POSTS AND TIMBERS). REFERENCE DESIGN VALUES (KSI): Fbo = 1.75, Fvo = 0.17, Eo = 1,700

CURB RAIL TO BE DOUGLAS FIR, COMB. SYMBOL 24F-V8, DF/DF. REFERENCE DESIGN VALUES (KSI): Fbxo = 2.40, Fbyo = 1.55, Fvxo = 0.265, Fvyo = 0.23, Exo = 1,800, Eyo = 1,600

MISCELLANEOUS:

ALL TIMBER TO BE CUT EXACT LENGTH, DRESSED TO SIZE REQUIRED AND ALL PRACTICAL FRAMING TO BE DONE PRIOR TO TREATMENT.

ALL DECK PLANKS SHALL BE PREDRILLED PRIOR TO TREATMENT.

ALL PLANK FOR DECK PANELS SHALL BE PRECISION END TRIMMED TO LENGTH WITH 1/4" UNDERLENGTH & NO OVERLENGTH TOLERANCE

PERMITTED.

DECK PANELS SHALL BE ASSEMBLED WITH 3/8" DIAMETER RING SHANK DOWELS. ALL DOWELS ARE TO BE SIMULTANEOUSLY DRIVEN WITH EQUAL FORCE USING A MECHANICAL PRESS. ENSURING ALL HEADS ARE FLUSH WITH THE SURFACE OF THE TIMBER PLANK. MULTIPLE IMPACT TOOLS ARE

NOT TO BE USED TO SET DOWELS BECAUSE OF POTENTIAL FOR WOOD FIBER RUPTURE.

DECK PANELS WILL BE DELIVERED TO JOBSITE AFTER BEING FULLY ASSEMBLED TO FABRICATION PLANT.

ALL HARDWARE FOR TIMBER CONNECTIONS TO MEET ASTM A307-97 GALVANIZED TO F2329 (A153). ALL HIGH STRENGTH HARDWARE FOR DIAPHRAGM CONNECTIONS TO MEET ASTM F3125 GRADE A325 TYPE 3 OR GRADE A449 GALVANIZED TO A153.

ALL BOLTED STEEL CONNECTIONS SHALL BE MADE WITH A325 TYPE III BOLTS.

IF GALVANIZED FASTENERS ARE CUT OR DAMAGED IN THE FIELD, THEY SHALL BE REPLACED OR TOUCHED UP WITH COLD GALVANIZING COMPOUND AT THE DISCRETION OF THE FOREST SERVICE CONTRACTING OFFICER REPRESENTATIVE.

CONSTRUCTION NOTES:

TIMBER DECK PANELS ARE MARKED IN THE SHOP FOR USE IN FIELD PLACEMENT OF THE PANELS ON THE GIRDERS, e.g. A1, B1, C1 FOR SPAN 1.

PLACE PANELS AS SHOWN ON SHOP DRAWINGS.

ALL HOLES DRILLED IN THE FIELD WHERE SPIKES ARE USED ARE TO BE 1/16" SMALL THAN THE SPIKE SIZE.

ALL HOLES DRILLED FOR BOLTS ARE TO BE 1/16" LARGER THAN BOLT SIZE.

HOLES DRILLED FOR 3/4" LAG BOLTS ARE TO BE 9/16" IN DIAMETER FOR THE THREADED PORTION OF THE BOLT AND 13/16" FOR THE SHANK.

ANY NUT OR MACHINE BOLT HEAD IN DIRECT CONTACT WITH TIMBER TO HAVE ON PLATE WASHER BETWEEN NUT & TIMBER, AND BOLT HEAD &

TIMBER.

ANY NUT OR MACHINE BOLT HEAD IN DIRECT CONTACT WITH STEEL TO HAVE ONE CUT WASHER BETWEEN NUT & STEEL, OR BOLT HEAD & STEEL.

SET THREADS ON ALL BOLTS AT NUT WITH A CENTER PUNCH AFTER TIGHTENING.

ALL TIMBER CUT OR DRILLED IN THE FIELD SHALL BE TREATED WITH COPPER NAPHTHENATE.

ALTHOUGH ALL PRACTICAL PRE-FRAMING WILL BE DONE PRIOR TO TREATING, SOME CUTTING & DRILLING WILL BE REQUIRED IN THE FIELD.

IF GALVANIZED FASTENERS ARE CUT OR DAMAGED IN THE FIELD, THEY SHALL BE REPLACED OR TOUCHED UP WITH COLD GALVANIZING COMPOUND AT THE DISCRETION OF THE FOREST SERVICE CONTRACTING OFFICER REPRESENTATIVE.

THE STEEL SUPERSTRUCTURE FROM THE OLD BRIDGE SHALL BE RE-USED FOR THE FOUNDATION OF THE NEW BRIDGE. THIS WORK SHALL BE PAID

FOR AS SUBSTRUCTURE STEEL, SALVAGED, MODIFIED, AND ERECTED.

HYDRAULIC DATA:

100 YEAR FREQUENCY

DRAINAGE AREA...............................................................................................................................................0.35 SQ MI

Q100...................................................................................................................................................................780.00 CFS

VELOCITY THRU STRUCTURE..........................................................................................................................10.98 FPS

BRIDGE OPEN AREA THRU STRUCTURE....................................................................................................76.11 SQ FT

FLOW AREA THRU STRUCTURE...................................................................................................................71.04 SQ FT

HIGH WATER ELEVATION................................................................................................................................3478.77 FT

SCOUR CRITICAL CODE

DESIGN DATA:

LOAD RATING (RATING FACTORS):

H-10 (CONCURRENT WITH SNOW LOAD)

INVENTORY RATING (STRENGTH 1, FLEXURE, MAIN SPAN).................................................................................1.16

OPERATING RATING (STRENGTH 1, FLEXURE, MAIN SPAN).................................................................................1.50

NOTE: LIVE LOAD DEFLECTION DOES NOT EXCEED 1/800 OF THE SPAN LENGTH.

DEAD LOAD:

THE DESIGN UNIT WEIGHT FOR ALL TIMBERS...................................................................................................50 PCF

THE BRIDGE RAILING LOAD...............................................................................................................39 PLF (PER SIDE)

SNOW LOAD...........................................................................................................................................................105 PSF

MATERIAL & FABRICATION NOTES:

SHOP DRAWINGS:

THE FABRICATOR SHALL BE RESPONSIBLE FOR THE PREPARATION OF SHOP DRAWINGS FOR THE TIMBER DECK, TIMBER RAILING, STEEL

BEAMS, AND STEEL DIAPHRAGMS IN ACCORDANCE WITH THE STANDARD SPECIFICATIONS.

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DRAWN

DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

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EASTERN REGION

HUNTINGTON RAVINE

TRAIL BRIDGE #1

REPLACEMENT @ MP 0.120

WHITE MOUNTAIN

NATIONAL FOREST

ANDROSCOGGIN

RANGER DISTRICT

QUANTITIES

& MISCELLANEOUS

DETAILS

5/16/2025

D.CARTER

J.ALLEN

G.JUNTTILA

U28-04493

C-03

10 3

ABBREVIATIONS (PLAN):

LPSM - LUMP SUM

LNFT - LINEAR FEET

CUYD - CUBIC YARD

SQYD - SQUARE YARD

EA - EACH

LBS - POUNDS

EX - EXISTING

PROP - PROPOSED

NTS - NOT TO SCALE

TYP - TYPICAL

CL - CENTER LINE

CIP - COMPACTED IN PLACE

P.O.B. - POINT OF BEGINNING

P.O.E. - POINT OF ENDING

REF PT - REFERENCE POINT

OHWM - ORDINARY HIGH WATER MARK

OBS WSE - OBSERVED WATER SURFACE ELEVATION

Q100 WSE - 100 YEAR FLOOD WATER SURFACE ELEVATION

F.F. - FRONT FACE

B.F. - BACK FACE

SPA - SPACES

ABUT - ABUTMENT

PL - PLATE

GALV - GALVANIZED

U.N.O. - UNLESS NOTED OTHERWISE

MOBILIZATION15101 LPSM 1

ITEM NO. DESCRIPTION UNITS QUANTITY

CONSTRUCTION SURVEY AND STAKING, METHOD 1, TOLERANCE CLASS C15201 LPSM

SILT SOCK15702 LNFT

REMOVAL OF OLD STRUCTURE, PORTIONS, DISPOSAL METHOD A20304 LPSM

AGGREGATE BASE, GRADING D, COMPACTION METHOD B30103 CUYD

SEEDING, DRY METHOD62503 LPSM

TEMPORARY TRAIL CLOSURE63501 LPSM

TRAIL EXCAVATION, COMPACTION METHOD B20401 CUYD 4

CLEARING AND GRUBBING, DISPOSAL METHOD A20102 LPSM 1

STRUCTURE EXCAVATION20801 CUYD 120

STRUCTURAL BACKFILL20803 CUYD 35

OBJECT MARKERS, CARSONITE, HIGH INTENSITY REFLECTIVITY 63307 EACH 4

PLACING CONSERVED TOPSOIL, 3-INCH62403 SQYD 39

POST, STEEL, 3 LB63306 LNFT 20

62901 ROLLED EROSION CONTROL PRODUCT, TYPE 2.D WITH NATURAL NETTING SQYD 39

TREATED STRUCTURAL TIMBER55704 LPSM 1

SUMMARY OF PROJECT QUANTITIES

RIPRAP, CLASS VI, MACHINE PLACED25101 CUYD 75

SIGNS, TYPE III SHEETING63301 SQFT 3

GEOTEXTILE, TYPE III, CLASS I 25116 SQYD 160

OBJECT MARKER

SCALE: NTS

2'-2"

8"

2'-6"

2'-2"

6'-0"

2'-0"

BEGIN/END

STRUCTURE

TOP OF ROAD

TOP OF

STRUCTURE/

GRND

CARSONITEINSIDE EDGE OF

BRIDGE RAIL OR

TRAVEL WAY

1'-4"

OBJECT MARKERS, CARSONITE,

HIGH INTENSITY REFLECTIVITY

MULCHING, DRY METHOD62509 LPSM 1

STRUCTURAL STEEL, GALV, FURNISHED, FABRICATED AND ERECTED55501 LBS 5987

SUBSTRUCTURE STEEL, SALVAGED, MODIFIED, AND ERECTED55501.1 LBS 4216

WEIGHT

LIMIT

TONS

STEEL POST SIGN DETAIL

SCALE: NTS

42" (MIN.)

6'-6"

(MAX.)

5'-3"

POST, STEEL, 3 LB

(10 FEET)

R12-1 SIGN

EXISTING GROUND

1'-3"

1'-0"

SIGNS, TYPE III SHEETING

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TRAFFIC CONTROL PLAN - TRAIL CLOSURE

PROJECT

LOCATION

(2) TYPE III BARRICADES,

LIGHTED AT EACH END

OF WORK ZONE

DRAWING TITLE

PROJECT NAME

DRAWN

DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

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EASTERN REGION

HUNTINGTON RAVINE

TRAIL BRIDGE #1

REPLACEMENT @ MP 0.120

WHITE MOUNTAIN

NATIONAL FOREST

ANDROSCOGGIN

RANGER DISTRICT

TEMPORARY

TRAIL CLOSURE

5/16/2025

D.CARTER

J.ALLEN

G.JUNTTILA

U28-04493

C-04

10 4

TRAFFIC CONTROL PLAN KEY

SIGN

TYPE III BARRICADE

MOUNTED

ON BARRICADE

W20-3

R11-2

W20-3

ALL SIGNS, EXCEPT THOSE MOUNTED ON TYPE III BARRICADES SHALL BE

MOUNTED ON DRIVEN POSTS AT A 7 FOOT BOTTOM HEIGHT.

DETOUR NOTES:

TRAIL WILL BE CLOSED AND DETOUR ROUTE IS NOT AVAILABLE FOR THE

PROJECT LOCATION.

TO GORHAM

TUCKERMAN RAVINE TRAIL

HUNTINGTON RAVINE TRAIL

BOOTT SPUR TRAIL

APPALACHIAN

NATIONAL

SCENIC TRAIL

NH-16

APPALACHIAN

NATIONAL

SCENIC TRAIL

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TRAIL CLOSED

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TRAIL CLOSED AHEAD

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350 FEET

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TRAIL CLOSED AHEAD

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HUNTINGTON RAVINE TRAIL

HUNTINGTON RAVINE TRAIL

DRAWN

DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/1 5/2

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EASTERN REGION

HUNTINGTON RAVINE

TRAIL BRIDGE #1

REPLACEMENT @ MP 0.120

WHITE MOUNTAIN

NATIONAL FOREST

ANDROSCOGGIN

RANGER DISTRICT

TYPICAL SECTIONS

5/16/2025

D.CARTER

J.ALLEN

G.JUNTTILA

U28-04493

C-05

10 5

SCALE: NTS

PROPOSED BRIDGE SECTION

14.416' DECK O-O

6.0' 6.0'

12.0' CLEAR ROADWAY

PLAN GRADE

FLATFLAT

W16x36 (TYP.)

3.16' 3.16' 3.16'

SCALE: NTS

EXISTING TYPICAL SECTION (STA 9+50 - STA 9+84)

VARIES

EX BASE - UNKNOWN (VAR.)

VARIES

(VAR.)

SCALE: NTS

PROPOSED TYPICAL SECTION (STA 9+50 - STA 9+72)

6.0'

12.0'

AGGREGATE BASE,

GRADING D, COMPACTION

METHOD B

(6")

EXISTING

GROUND

PLACING CONSERVED TOPSOIL, 3-INCH

(TYP)

2.0%2.0%

SEEDING, HYDRAULIC OR DRY METHOD

MULCHING, HYDRAULIC OR DRY METHOD

ROLLED EROSION CONTROL PRODUCT, TYPE 2.D

(TYP)

TRAIL EXCAVATION,

COMPACTION METHOD B

(AS REQUIRED)

PLAN GRADE

6.0'

1:3

2.0'

1.0'

STRUCTURE

BACKFILL CLEARING AND GRUBBING,

DISPOSAL METHOD A

(ONLY MINIMUM AS REQUIRED

FOR CONSTRUCTION, TYP.)

1:2

13.60' PAY LIMITS OF AGGREGATE BASE,

GRADING D, COMPACTION METHOD B

9.0'-14.0' (VAR.)

EX GRADE

(STA 10+16 - STA 10+33)

(STA 10+13 - STA 10+33)

SCALE: NTS

PROPOSED APPROACH BRIDGE SECTION

14.416' DECK O-O

6.0' 6.0'

12.0' CLEAR ROADWAY

PLAN GRADE

FLATFLAT

W14x26 (TYP.)

3.16' 3.16' 3.16'

SCALE: NTS

EXISTING BRIDGE SECTION

10.0' DECK O-O

5.0' 5.0'

EXISTING

GRADE

FLATFLAT

3" THICK TRANSVERSE

PLANK DECK

EXISTING W16x26

(TYP.)3.0' 3.0' 3.0'

1:3

REMOVE OF OLD STRUCTURE

PORTIONS, DISPOSAL METHOD A

SUBSTRUCTURE STEEL,

SALVAGE, MODIFIED, AND

ERECTED

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BM1

BM2

CP CHK FROM NEW BASE

BM3

9+00

10+00

11+00

PC

: 8

+5 8.

PC: 9+37.33

PC

: 1

0+

.7

PT

: 8

+5 5.

PT: 8+70.89

PT

: 9

+7 2.

PT: 11+08.45

N23° 3 3' 51"W

66.44'

N16° 21' 29"E 81.55'

N15° 00' 00"W

45.32'

PC STA = 9+37.33

N = 643510.9409 E = 1085752.9684

PI STA = 9+55.49

N = 643527.5867 E = 1085745.7084

PT STA = 9+72.17

N = 643545.0117 E = 1085750.8230

= 39.92 R = 50.00' T = 18.16' L = 34.84'

PC STA = 10+53.72

N = 643623.2565 E = 1085773.7895

PI STA = 10+81.79

N = 643650.1895 E = 1085781.6949

PT STA = 11+08.45

N = 643677.3023 E = 1085774.4300

= 31.36 R = 100.00' T = 28.07' L = 54.73'

DRAWING TITLE

PROJECT NAME

DRAWN

DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/1 5/2

5 1 6:

JA

LL

EN

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G

EASTERN REGION

HUNTINGTON RAVINE

TRAIL BRIDGE #1

REPLACEMENT @ MP 0.120

WHITE MOUNTAIN

NATIONAL FOREST

ANDROSCOGGIN

RANGER DISTRICT

HUNTINGTON RAVINE

TRAIL @ MP 0.120

PLAN OF SITE

5/16/2025

D.CARTER

J.ALLEN

G.JUNTTILA

U28-04493

C-06

10 6

GENERAL NOTES:

1. COORDINATE SYSTEM REFERS TO NAD83 NEW HAMPSHIRE STATE

PLANES, US FOOT. DATUM REFERS TO NAVD88.

2. REFERENCE POINTS "A" AND "B" REFER TO FINISH GRADE AT

CENTERLINE AT THE ENDS OF THE PROPOSED BRIDGE BEAMS.

3. PROVIDE SMOOTH TRANSITION FROM EXISTING TO PROPOSED

TRAIL AT THE ENDS OF THE BRIDGE APPROACHES. FADE OR

EXTEND PROFILE SLIGHTLY AS REQUIRED.

4. SURVEY WAS COMPLETED BY HORIZONS ENGINEERING FOR THIS

PROJECT BETWEEN OCTOBER AND DECEMBER 2024.

DESCRIPTION

HORIZONTAL AND VERTICAL CONTROL

LOCATION

STA / OFFSET NORTHING EASTING ELEVATIONPOINT

BM3

LEGEND

BENCHMARK

TREE LINE

EDGE OF GRAVEL

RIGHT OF WAY (R.O.W.)

PROPOSED EXISTING

SILT SOCK

RIPRAP

BM2

BM1 9+34.60, 5.1' LT 1085749.3983643506.4010 3476.74 8" BIRCH

GENERAL PLAN OF SITE

PROPOSED

SLOPE STAKE LINE

(TYP)

P.O.E.

REF PT "D"

EXISTING BRIDGE AND

APPROACHES TO BE REMOVED

P.O.B.

REF PT "C"

REF

PT "A"

REF

PT "B"

SILT SOCK

(TYP)

HUNTINGTON

RAVINE TRAIL

CONSTRUCTION

9+70.88, 12.8' LT

10+18.70, 18.4' RT

AGGREGATE BASE

REFERENCE POINTS

LOCATION

STATION NORTHING EASTING ELEVATIONPOINT

C D

B A

9+50.00

9+72.00 10+13.00

10+33.20

SOIL EROSION CONTROL REQUIREMENTS

SEEDING WITH MULCH

AND/ OR MATTING

FACILITATES ESTABLISHMENT OF VEGETATIVE COVER.

EFFECTIVE FOR DRAINAGEWAYS WITH LOW VELOCITY.

EASILY PLACED IN SMALL QUANTITIES BY INEXPERIENCED

PERSONNEL. SHOULD INCLUDE PREPARED TOPSOIL BED.

KEY DETAIL CHARACTERISTICS

RIPRAP USED WHERE VEGETATION IS NOT EASILY ESTABLISHED.

EFFECTIVE FOR HIGH VELOCITIES OR HIGH

CONCENTRATIONS. PERMITS RUNOFF TO INFILTRATE

SOIL. DISSIPATES ENERGY FLOW AT SYSTEM OUTLETS.

54 SILT SOCK FILTERS AND DETAINS RUNOFF.

3480.87 3478.10

PROPOSED 12' WIDE

AGGREGATE BASE, GRADING D,

COMPACTION METHOD B

(TYP)

CLEARING AND GRUBBING,

DISPOSAL METHOD A (TYP)

EXISTING EDGE GRAVEL

CLEARING AND GRUBBING,

DISPOSAL METHOD A

(TYP)

PROPERTY OWNER:

WHITE MOUNTAIN

NATIONAL FOREST

EXISTING EDGE GRAVEL

12'

EXISTING EDGE OF WATER

TR

IB

T O

C U

TL

ER

R

IV

ER

PROPOSED 12' WIDE

AGGREGATE BASE, GRADING D,

COMPACTION METHOD B

(TYP)

12" FIR

12" SPRUCE

PROPOSED

STRUCTURE

STA. 10+01

PROPERTY OWNER:

WHITE MOUNTAIN

NATIONAL FOREST

PROPERTY OWNER:

WHITE MOUNTAIN

NATIONAL FOREST

PROPERTY OWNER:

WHITE MOUNTAIN

NATIONAL FOREST

HUNTINGTON

RAVINE TRAIL

12'

EXISTING EDGE OF WATER

TR

IB

T O

C U

TL

ER

R

IV

ER

Feet 0 10 20

1085738.1149643547.0541 1085781.5355643584.4923

1085750.7738643544.8428 1085762.3219643584.1865 1085749.4214643523.0653 1085768.0108643603.5690

3479.43 3481.57

3477.73 3474.18

EXISTING ANCHOR

BOLT WITH CABLE

EXISTING ANCHOR

BOLT WITH CABLE

13 13

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.6

8+75

.0

9+00

.5

.1

.1

9+50

.8

.5

.7

.6

10+00

.4

.4

.5

10+50

.5

.8

11+00

PVI STA: 9+56.22

PVI ELEV: 3474.92

G.C.: 21.33% K: 0.58

LVC: 12.43

BV

C

S:

+5 0.

BV

C E:

4.

EV

C

S:

+6 2.

EV

C E:

7.

LOW PT STA: 9+50.00

LOW PT ELEV: 3474.18

PVI STA: 10+30.30

PVI ELEV: 3478.08

G.C.: 13.00% K: 0.44

LVC: 5.78

BV

C

S:

0+

.4

BV

C

E:

8.

EV

C

S:

0+

.1

EV

C

E:

7.

LOW PT STA: 10+33.19

LOW PT ELEV: 3477.74

PVI STA: 9+68.11

PVI ELEV: 3478.89

G.C.: -19.32% K: 0.39

LVC: 7.62

BV

C

S:

+6 4.

BV

C E:

7.

EV

C

S:

+7 2.

EV

C E:

9.

HIGH PT STA: 9+72.00

HIGH PT ELEV: 3479.43

PVI STA: 10+16.47

PVI ELEV: 3481.54

G.C.: -24.00% K: 0.29

LVC: 6.84

BV

C

S:

0+

.0

BV

C

E:

1.

EV

C

S:

0+

.8

EV

C

E:

0.

HIGH PT STA: 10+13.00

HIGH PT ELEV: 3481.57

.00

-1.00%

.00

.3

3%

-25.00%

-12.00%

DRAWING TITLE

PROJECT NAME

DRAWN

DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/1 5/2

5 1 6:

JA

LL

EN

Z:

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EASTERN REGION

HUNTINGTON RAVINE

TRAIL BRIDGE #1

REPLACEMENT @ MP 0.120

WHITE MOUNTAIN

NATIONAL FOREST

ANDROSCOGGIN

RANGER DISTRICT

HUNTINGTON RAVINE

TRAIL @ MP 0.120

PROFILE OF SITE

5/16/2025

D.CARTER

J.ALLEN

G.JUNTTILA

U28-04493

C-07

10 7

GENERAL PROFILE

PROPOSED ROAD PROFILE AT CL

EXISTING ROAD PROFILE AT CL

Q100 WSE

= 3478.77'

OBS WSE = 3475.48'

REF PT "C"

P.O.B.

MATCH EXISTING

23.5'

CHANNEL

PROPOSED BRIDGE, CL STA 10+01:

41 FOOT (OVERALL LENGTH) 24 FOOT MAIN SPAN AND 17 FOOT

APPROACH SPAN STEEL GIRDER BRIDGE WITH A TIMBER

DOWEL-LAM DECK ON STEEL GRADE BEAM FOUNDATIONS.

PROP. LOW

CHORD

= 3479.77'

REF

PT "A"

REF PT "D"

P.O.E.

MATCH EXISTING

REF

PT "B"

EXISTING BRIDGE (TO BE REMOVED) CL STA 10+00.00:

23.9 FOOT (OVERALL LENGTH) x 10'-0" FOOT WIDE (O-O) STEEL

GIRDER BRIDGE WITH TIMBER APPROACHES ON STACKED

TIMBER SILLS.

3478.42

LIMITS OF

STRUCTURE

BACKFILL

LIMITS OF

STRUCTURE

BACKFILL

PROPOSED PROFILE @ CL

EXISTING PROFILE @ CL

3476.44

3478.66

Feet (Horizontal) 0 10 20

Feet (Vertical) 0 1 2

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BM2

CP CHK FROM NEW BASE

BM3

10+00

PT

: 9

+7 2.

N16° 21' 29"E 81.55'

14.00%

-1.00%

12.00%

33.33%

-25.00%

-12.00%

DRAWING TITLE

PROJECT NAME

DRAWN

DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/1 5/2

5 1 6:

JA

LL

EN

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EASTERN REGION

HUNTINGTON RAVINE

TRAIL BRIDGE #1

REPLACEMENT @ MP 0.120

WHITE MOUNTAIN

NATIONAL FOREST

ANDROSCOGGIN

RANGER DISTRICT

HUNTINGTON RAVINE

TRAIL @ MP 0.120

PLAN OF STRUCTURE

5/16/2025

D.CARTER

J.ALLEN

G.JUNTTILA

U28-04493

C-08

10 8

PROPOSED

SLOPE STAKE LINE

(TYP)

SILT SOCK (TYP)

CLEARING AND GRUBBING,

DISPOSAL METHOD A (TYP)

EXISTING EDGE GRAVEL CLEARING AND GRUBBING,

DISPOSAL METHOD A

(TYP)

EXISTING EDGE GRAVEL

EXISTING EDGE OF WATER

TRIB TO CUTLER RIVER

HUNTINGTON

RAVINE TRAIL

TR

IB

T O

C U

TL

ER

R

IV

ER

CONSTRUCTION

AND SURVEY

CENTERLINE

EXISTING STRUCTURE

(TO BE REMOVED)

BRIDGE PLAN

BRIDGE ELEVATION

PROPOSED GRADE

EXISTING

GROUND

AT TOE

PER PLAN

RIPRAP, CLASS VI

RIPRAP DETAIL

SCALE: NTS

REF PT "B"

STA: 10+13

REF PT "A"

STA: 9+72

PROPOSED

RIPRAP,

CLASS VI

(TYP)

AGGREGATE BASE,

GRADING D,

COMPACTION METHOD B

(6")

3'-9"

3'-9"

PER PLAN

OBJECT MARKERS,

CARSONITE, HIGH

INTENSITY

REFLECTIVITY

3'-9" 1'-0"

NOTE: FOR RIPRAP ALONG SIDES OF CHANNEL,

EXCAVATE EXISTING SOILS DOWN TO PROPOSED

BOTTOM OF RIPRAP. RIPRAP DEPTH MAY BE

REDUCED IF BEDROCK IS ENCOUNTERED.

3'-9"

2'-0"

FLATREF PT "A"

REF PT "B"

LIMITS OF

STRUCTURE

BACKFILL

Q100 WSE = 3478.77'

OBS WSE = 3475.48'

STREAM BED

EL 3474.63' (+/-)

@ STA. 10+00

PROP. LOW

CHORD

= 3479.77'

3478.42

3476.44

3478.66

SCUPPER: 3 SPA @ 7'-4" = 22'-0"

1'

24'-0" BRIDGE CURB

1'

W16x36

12'-0"

CLEAR

14'-5"

DECK

O-O

PROPOSED

STRUCTURE

STA. 10+01

41'-0" (OVERALL BRIDGE LENGTH - REF. PT. A TO REF. PT. B)

24'-0" (OVERALL DECK LENGTH)17'-0" (OVERALL DECK LENGTH)

HUNTINGTON

RAVINE TRAIL

SCUPPER: 2 SPA @ 7'-6" = 15'-0"1'

17'-0" BRIDGE CURB

1'

OBJECT MARKERS,

CARSONITE, HIGH

INTENSITY REFLECTIVITY

OBJECT MARKERS,

CARSONITE, HIGH

INTENSITY

REFLECTIVITY

OBJECT MARKERS,

CARSONITE, HIGH

INTENSITY

REFLECTIVITY

90°

PROPOSED 12' WIDE

AGGREGATE BASE,

GRADING D, COMPACTION

METHOD B

(TYP)

RIPRAP, CLASS VI

(TYP. ALL QUADRANTS)

SILT SOCK (TYP)

5.0'

10.7' 5.8'

8.0'

10.0'

11.7'

6.6'

(TYP.)

16.5'

P.O.E.

REF PT "D"

P.O.B.

REF PT "C"

LIMITS OF

STRUCTURE

BACKFILL

Feet 0 4 8

W14x26

WEIGHT LIMITS

SIGN (R12-1)

(10 TON)

WEIGHT LIMITS

SIGN (R12-1)

(10 TON)

LIMITS OF:

STRUCTURE EXCAVATION LIMITS OF:

STRUCTURE EXCAVATION

REF PT "C"

P.O.E.

REF PT "D"

NOTE: APPROXIMATE LOW CHORD

OF EXISTING BRIDGE = 3477.43'

TR

IB

T O

C U

TL

ER

R

IV

ER

EXISTING FLOW CHANNEL

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STA. 10+00

DRAWN

DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

5/1 5/2

5 1 6:

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LL

EN

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EASTERN REGION

HUNTINGTON RAVINE

TRAIL BRIDGE #1

REPLACEMENT @ MP 0.120

WHITE MOUNTAIN

NATIONAL FOREST

ANDROSCOGGIN

RANGER DISTRICT

ABUTMENT PLAN

5/16/2025

D.CARTER

J.ALLEN

G.JUNTTILA

U28-04493

C-09

10 9

REF PT "B"

11'-101 2"

1'-21 4" 3'-2" 3'-2" 3'-01

2" 1'-21 4"

SCALE: NTS

SOUTH ABUTMENT PLAN

11'-101 2"

1'-21 4" 3'-2" 3'-2" 3'-2" 1'-21

4"

SCALE: NTS

PIER PLAN

1'-21 4" 3'-2" 3'-2" 3'-2" 1'-21

4"

11'-101 2"

1'-21 4" 3'-2" 3'-2" 3'-2" 1'-21

4"

SCALE: NTS

NORTH ABUTMENT PLAN

REF PT "A"

PROPOSED W14x26

EXISTING W16x26

EXISTING W16x26

EXISTING W16x26

PROPOSED W14x26

EXISTING W16x26

EXISTING W16x26

PROPOSED W16x36

STA. 9+89

A

A

B

B

C

C

SCALE: NTS

SOUTH ABUTMENT SECTION A-A

SCALE: NTS

PIER SECTION B-B

SCALE: NTS

NORTH ABUTMENT SECTION C-C

PROPOSED

W14x26

R

EF

. P T.

A

4"73

4"

EXISTING W16x26

(SUBSTRUCTURE STEEL,

SALVAGED, MODIFIED,

AND ERECTED)

PROPOSED

W14x26

PROPOSED

W16x36

4"73

4"

ST

A.

+8

R

EF

. P

T.

B

4"73

4"

PROPOSED

W16x36

(4) 3/4"Ø HOLES FOR 5/8"Ø

A325 BOLTS (TYP.) 11

4"

4"

1" 3"

1"

PROPOSED 1/2" STEEL

WEB STIFFENER (TYP.)

PROPOSED STEEL SOLE PLATE

PROPOSED STEEL SOLE PLATE

1"11 4"

1" 3"

1"

PROPOSED 1/2" STEEL

WEB STIFFENER (TYP.)

4"

3"

4"

PROPOSED 1/2" STEEL

WEB STIFFENER (TYP.)

1"

2"

5'-111 4"

5'-111 4"

EXISTING W16x26

EXISTING W16x26

(SUBSTRUCTURE STEEL,

SALVAGED, MODIFIED,

AND ERECTED)

SEE BACKER PLANK

CONNECTION ON

SHEET C-10

1/2" GAP (MIN.)

(4) 3/4"Ø HOLES FOR 5/8"Ø A325 BOLTS (TYP.)

EXISTING W16x26

(SUBSTRUCTURE STEEL,

SALVAGED, MODIFIED,

AND ERECTED)

SEE BACKER PLANK CONNECTION

ON SHEET C-10

1/4"

1/4" 1/4"

NOTE:

1. THE BEAMS SALVAGED FROM THE OLD

SUPERSTRUCTURE ARE TO BE CUT IN HALF AND

PLACED AS SHOWN FOR NEW FOUNDATIONS.

2. ANY REMAINING SALVAGED STEEL (NOT SHOWN) IS

TO BE TACK WELDED TO FOUNDATION STEEL AND

BURIED IN THE APPROACHES.

3. DO NOT BACKFILL THE FOUNDATIONS/STRUCTURE

UNTIL THE SUPERSTRUCTURE HAS BEEN PLACED

AND SECURED.

4"

PROPOSED 1/2" STEEL WEB STIFFENER

(NON-GALVANIZED)(INCLUDE WITH

SUBSTRUCTURE STEEL, SALVAGED,

MODIFIED, AND ERECTED)

1/4" 1/4"

1/4"

C L

BE

AR

IN

G

3"

PROPOSED 1/2" STEEL WEB STIFFENER

(NON-GALVANIZED)(INCLUDE WITH

SUBSTRUCTURE STEEL, SALVAGED,

MODIFIED, AND ERECTED)

1/4"

1/4"

PROPOSED 1/2" STEEL WEB STIFFENER

(NON-GALVANIZED)(INCLUDE WITH

SUBSTRUCTURE STEEL, SALVAGED,

MODIFIED, AND ERECTED)

C L

BE

AR

IN

G

(4) 3/4"Ø HOLES FOR 5/8"Ø

A325 BOLTS (TYP.)

1/4"TOP & BOT

4"

W14x26 CL

PIER

EXISTING W16x26

PROPOSED W16x36

EXISTING W16x26

EXISTING W16x26

4"

3"

4"

EXISTING W16x26

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DRAWN

DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

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EASTERN REGION

HUNTINGTON RAVINE

TRAIL BRIDGE #1

REPLACEMENT @ MP 0.120

WHITE MOUNTAIN

NATIONAL FOREST

ANDROSCOGGIN

RANGER DISTRICT

STRUCTURE DETAILS

5/16/2025

D.CARTER

J.ALLEN

G.JUNTTILA

U28-04493

C-10

10 10

4'-9"

4'-9"

A

A

4" DECK (NOM.)

SECTION AT SCUPPER

SCALE: NTS

SECTION A-A

SCALE: NTS

C L

RO

AD

W

AY

B

RI

DG

E

17' (NORMAL TO TOP FLANGE)

3'-2"

3'-2"

3'-2"

8'-2"

STRUCTURAL STEEL, GALV, FURNISHED,

FABRICATED, AND ERECTED (W14x26)

BOLTED CONNECTIONS

PER DIAPHRAGM

CONNECTION DETAIL (TYP.)

DIAPHRAGM CONNECTION

SCALE: NTS

C12x20.7 DIAPHRAGM

1/2"

SP

A.

C12 - OMIT AT FASCIA

13/16"Ø HOLES FOR 3/4"Ø

A325 BOLTS (TYP.)

SECTION B-B

SCALE: NTS

CENTERLINE OF

BEARING

3/4"Ø x 30" ASTM A307 GALV.

DM. HD. BOLTS WITH HEX

NUT AND (1) MALLEABLE

IRON WASHER EA.

(3) SPA.

@ 5"

4"

2"

2"

4" 4"

8"

4"

2"

2"

4" DECK (NOM.)

(2) 1"Ø x 14" ASTM A307 GALV.

DM. HD. BOLTS WITH HEX NUT

AND (1) MALLEABLE IRON

WASHER EA. (@ SPLICE)

3/4"Ø x 30" ASTM A307 GALV. DM. HD.

BOLTS WITH HEX NUT AND (1)

MALLEABLE IRON WASHER EA.

2"

1"

8"

4"x123

8"

GLU-LAM CURB

C12x20.7 DIAPHRAGM

1/2"

SP

A.

C12 - OMIT AT FASCIA

13/16"Ø HOLES FOR 3/4"Ø

A325 BOLTS (TYP.)

BEAM, DIAPHRAGM, DECK PLAN

SCALE: NTS

4'-9"

4'-9"

C L

RO

AD

W

AY

B

RI

DG

E

24'

3'-2"

3'-2"

3'-2"

4"

11'-8"

STRUCTURAL STEEL, GALV,

FURNISHED, FABRICATED, AND

ERECTED (W16x36)

BOLTED CONNECTIONS

PER DIAPHRAGM

CONNECTION DETAIL (TYP.)

CENTERLINE OF BEARING

4" 12'

APPROACH SPAN MAIN SPAN

WEB STIFFENER DETAIL

SCALE: NTS

2"

1'-3"

PROPOSED 1/2" STEEL

WEB STIFFENER

3/4" CHAMFER

(TYP.)

3 x 6" TIMBER NAILER, (TYP.)

(S2S1E) (2 1/2")

4" DECK PANELS,

S2S1E (3 1/2")

3/4"Ø X 9" DM. HD. BOLT

W/ (1) 3/4" CUT WASHER

& (1) 3/4" LOCK NUT @ 48"

O.C., BOLT THROUGH

DECK, NAILER, AND

STEEL GIRDER, FIELD

DRILL, (TYP.)

3/4"Ø X 4" HEX HD. BOLT W/ (1) 3/4" CUT

WASHER & (1) 3/4" LOCK NUT COUNTERSUNK

@ 48" O.C., THROUGH NAILER AND STEEL

GIRDER, FIELD DRILL, (TYP.)

4"

4"

BOLT

(STAGGER

@48" O.C.)

NAILER (TYP.)

B

B

3" x 12" BACKER PLANK

14'-5"

14'-5"

BOLT

(STAGGER

@ 48" O.C.)

NAILER (TYP.)

B

B

5/8" x 3" DM. HD. DR. SPIKE @ 12" O.C., PANEL SHIPLAP JOINT, (TYP.)

PANEL CONNECTION DETAIL

SCALE: NTS

BACKER PLANK CONNECTION

SCALE: NTS

3" M

IN

L4" x 4" x 1/2" x 9"

13/16"Ø HOLES FOR 3/4"Ø

A325 BOLTS (TYP.)

5/16" x 8" GRK-RSS

SCREWS OR EQUAL

3" x 12" BACKER

PLANK, S2S1E

(2 1/2")

BEVELED SOLE PLATE DETAILS

SCALE: NTS

APPROACH PIER

5-1/2" 1-1/2"

1-1/2"

1-1/4" 1-1/4"

3"

3"

5-1/2"

1/4"

1"

5-1/4" 1-1/2"

1-1/2"

1-1/4"

3"

5-1/4"

1"

1-3/4"

13/16"Ø HOLES

(TYP.)

STEEL

(TYP.) STRUCTURAL STEEL, GALV,

FURNISHED, FABRICATED,

AND ERECTED

(L4" x 4" x 1/2" x 8-1/2")

STRUCTURAL STEEL, GALV,

FURNISHED, FABRICATED,

AND ERECTED

(L4" x 4" x 1/2" x 8-1/2")

NOTE:

1. PANEL DECK, BACKER

PLANK, NAILER, CURB

RAILING, AND HARDWARE

SHALL BE INCLUDED WITH

"TREATED STRUCTURAL

TIMBER".

2. SOLE PLATE AND

HARDWARE FOR

DIAPHRAGM AND BACKER

PLANK CONNECTIONS TO BE

INCLUDED WITH

"STRUCTURAL STEEL, GALV,

FURNISHED, FABRICATED,

AND ERECTED".

3"

48"

(TYP.)

4" DECK PANEL (PANEL LENGTHS PER MFR)

(15'-21

2" DECK LENGTH)

4" DECK PANELS (PANEL LENGTHS PER MFR)

(24'-21

2" DECK LENGTH)

8'-6"

3/4"Ø X 4" HEX HD. BOLT

(SEE SECTION B-B) (TYP.)

3/4"Ø X 9" DM. HD. BOLT

(SEE SECTION B-B) (TYP.)

3/4"Ø X 4" HEX HD. BOLT

(SEE SECTION B-B) (TYP.)

3/4"Ø X 9" DM. HD. BOLT

(SEE SECTION B-B) (TYP.)

NOTE:

PROVIDE WASHERS FOR BOLTS THAT ARE BEVELED

AT THE SAME ANGLE AS THE SOLE PLATES.

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