6_AldenGulchTrailConstructionDrawings.pdf

PROJECT LOCATION

VICINITY MAP

TRAVEL DIRECTIONS:

SHEET OF

United States Department of Agriculture

Forest Service

INDEX OF SHEETS

SHEET SHEET TITLE DATE

01 COVER SHEET 2/15/2018

02 TRAIL PLAN & GENERAL NOTES 2/15/2018

03 TRAIL DETAILS & SECTIONS

FROM THE KETCHUM RANGER DISTRICT HEAD NORTHEAST ON SUN

VALLEY ROAD TOWARD BITTERROOT ROAD FOR 0.6 MILES; TURN

LEFT ONTO SADDLE ROAD AND CONTINUE FOR 0.5 MILES; TURN

RIGHT ONTO STATE HIGHWAY 75 AND CONTINUE FOR 14.3 MILES;

TURN LEFT ONTO BAKER CREEK ROAD AND CONTINUE FOR 3.2

MILES UNTIL REACHING THE ALDEN GULCH PROJECT STARTING

POINT.

KETCHUM RANGER DISTRICT OFFICE

206 SUN VALLEY ROAD

KETCHUM, ID 83340

RECOMMENDED BY:

STAFF ENGINEER

FOREST ENGINEER

DATE

RECREATION PROGRAM MANAGER

(R04) INTERMOUNTAIN REGION

SAWTOOTH NATIONAL FOREST

BLAINE COUNTY

IDAHO

ALDEN GULCH TRAIL CONSTRUCTION

PROJECT, 2018

2/15/2018

Braidy K. Richins

Shawn Robnett

Zach Poff

2/15/18

DATE

DATE

2/15/18

2/15/18

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DESIGNER

CHECKED

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OFSHEET

United States Department of Agriculture Forest Service

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B.RICHINS

B.RICHINS

S.ROBNETT

2/15/2018

KETCHUM RANGER DISTRICT

SAWTOOTH

NATIONAL FOREST

TRAIL PLAN &

GENERAL NOTES

INTERMOUNTAIN REGION

(R04)

ALDEN GULCH TRAIL

CONSTRUCTION

PROJECT

GENERAL NOTES:

TRAIL CONSTRUCTION NOTES:

TRAIL CONSTRUCTION FEATURE LEGEND

A

B

C

D

C1

C2

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D

A

TRAIL PLAN

BASE BID OPTION ITEM #1

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1. ALL MATERIALS AND WORKMANSHIP SHALL BE IN ACCORDANCE WITH THE FOREST SERVICE "STANDARD SPECIFICATIONS FOR CONSTRUCTION OF TRAILS AND TRAIL BRIDGES ON FOREST SERVICE ALL MATERIALS AND WORKMANSHIP SHALL BE IN ACCORDANCE WITH THE FOREST SERVICE "STANDARD SPECIFICATIONS FOR CONSTRUCTION OF TRAILS AND TRAIL BRIDGES ON FOREST SERVICE PROJECTS", INCLUDING SUPPLEMENTAL SPECIFICATIONS AS MODIFIED FOR THIS PROJECT. 2. ALL MATERIALS AND WORK ARE SUBJECT TO INSPECTION AND APPROVAL BY UNITED STATES FOREST SERVICE PERSONNEL. THE INSPECTOR, INCLUDING CONTRACTING OFFICER (CO), CONTRACTING ALL MATERIALS AND WORK ARE SUBJECT TO INSPECTION AND APPROVAL BY UNITED STATES FOREST SERVICE PERSONNEL. THE INSPECTOR, INCLUDING CONTRACTING OFFICER (CO), CONTRACTING OFFICER'S REPRESENTATIVE (COR), OR OTHER APPROVED PERSONNEL, SHALL, AT ALL TIMES, HAVE ACCESS TO THE WORK FOR THE PURPOSE OF INSPECTION AND TESTING, AND THE CONTRACTOR SHALL PREPARE FACILITIES FOR SUCH ACCESS AND SUCH INSPECTION AND TESTING, AS APPLICABLE. 3. THE CONTRACTOR SHALL MINIMIZE DAMAGE TO THE PROJECT SITE TO THE HIGHEST EXTENT POSSIBLE TO ENSURE THE LEAST AMOUNT OF DISTURBANCE. DAMAGE TO EXISTING SITE FEATURES THE CONTRACTOR SHALL MINIMIZE DAMAGE TO THE PROJECT SITE TO THE HIGHEST EXTENT POSSIBLE TO ENSURE THE LEAST AMOUNT OF DISTURBANCE. DAMAGE TO EXISTING SITE FEATURES OUTSIDE THE IMMEDIATE PROJECT LIMITS SHALL BE RESTORED TO PRE-CONSTRUCTION CONDITION OR BETTER BY THE CONTRACTOR AT NO COST TO THE GOVERNMENT. 4. PROTECT ALL EXISTING TREES, SHRUBS, BOULDERS, OR OTHER VEGETATION LOCATED OUTSIDE THE FLAGGED TRAIL CORRIDOR LIMITS UNLESS APPROVED OTHERWISE BY THE CONTRACTING OFFICER. PROTECT ALL EXISTING TREES, SHRUBS, BOULDERS, OR OTHER VEGETATION LOCATED OUTSIDE THE FLAGGED TRAIL CORRIDOR LIMITS UNLESS APPROVED OTHERWISE BY THE CONTRACTING OFFICER. 5. ROCKS/BOULDERS EXIST ALONG THE LENGTH OF THE PROJECT LIMITS. CONTRACTOR SHALL PROVIDE THE APPROPRIATE EQUIPMENT NEEDED TO HANDLE/REMOVE THESE EXISTING FEATURES. ROCKS/BOULDERS EXIST ALONG THE LENGTH OF THE PROJECT LIMITS. CONTRACTOR SHALL PROVIDE THE APPROPRIATE EQUIPMENT NEEDED TO HANDLE/REMOVE THESE EXISTING FEATURES. 6. TRAIL FINISHING WORK (WITH EXCEPTION OF TALUS TRAIL SECTIONS AND ARMORED FORD CROSSINGS) AND TREE CLEARING WILL BE PERFORMED BY OTHERS.TRAIL FINISHING WORK (WITH EXCEPTION OF TALUS TRAIL SECTIONS AND ARMORED FORD CROSSINGS) AND TREE CLEARING WILL BE PERFORMED BY OTHERS.

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1. TRAIL PLAN REPRESENTS THE APPROXIMATE FLAGGED LOCATION OF THE NEW APPROXIMATELY 4.65-MILE LONG TRAIL ALIGNMENT. THE CONTRACTOR SHALL CONSTRUCT A NEW FIELD-FIT TRAIL TRAIL PLAN REPRESENTS THE APPROXIMATE FLAGGED LOCATION OF THE NEW APPROXIMATELY 4.65-MILE LONG TRAIL ALIGNMENT. THE CONTRACTOR SHALL CONSTRUCT A NEW FIELD-FIT TRAIL APPROXIMATELY 4.65-MILE LONG TRAIL ALIGNMENT. THE CONTRACTOR SHALL CONSTRUCT A NEW FIELD-FIT TRAIL LONG TRAIL ALIGNMENT. THE CONTRACTOR SHALL CONSTRUCT A NEW FIELD-FIT TRAIL WITHIN 25' EITHER SIDE OF THIS FLAGGED ALIGNMENT. CONTRACTING OFFICER SHALL APPROVE DESIRED FIELD-FIT TRAIL ALIGNMENT PRIOR TO ACTUAL CONSTRUCTION ON THE GROUND. 2. CONTRACTOR SHALL CONSTRUCT THE NEW TRAIL WITH GRADE REVERSALS (DRAIN DIPS) LOCATED ALONG THE FULL TRAIL LENGTH EVERY 200' (MAX). COORDINATE LOCATIONS WITH CONTRACTING CONTRACTOR SHALL CONSTRUCT THE NEW TRAIL WITH GRADE REVERSALS (DRAIN DIPS) LOCATED ALONG THE FULL TRAIL LENGTH EVERY 200' (MAX). COORDINATE LOCATIONS WITH CONTRACTING OFFICER PRIOR TO CONSTRUCTION. DRAINAGE DIP SPILLWAYS SHALL CONTAIN ROCK ARMORING FOR EROSION PROTECTION. 3. FOR APPROVED FIELD-FIT TRAIL ALIGNMENTS IN CLOSE PROXIMITY TO EXISTING TREES, CONTRACTOR SHALL PROTECT/INCORPORATE ROOTS INTO TRAIL CONSTRUCTION TO CREATE BETTER USER FOR APPROVED FIELD-FIT TRAIL ALIGNMENTS IN CLOSE PROXIMITY TO EXISTING TREES, CONTRACTOR SHALL PROTECT/INCORPORATE ROOTS INTO TRAIL CONSTRUCTION TO CREATE BETTER USER EXPERIENCE. CONTRACTOR SHALL ALSO PROTECT/INCORPORATE NATIVE ROCK ELEMENTS IN THE SAME MANNER. BOTH SCENARIOS SHALL BE APPROVED BY THE CONTRACTING OFFICER ON THE GROUND PRIOR TO CONSTRUCTION. 4. CONTRACTOR SHALL CONSTRUCT TRAIL SWITCHBACKS HAVING BANKED CORNERS.CONTRACTOR SHALL CONSTRUCT TRAIL SWITCHBACKS HAVING BANKED CORNERS.

AutoCAD SHX Text = CONSTRUCT NATIVE SURFACE TRAIL (BEGIN TO CONSTRUCT NATIVE SURFACE TRAIL (BEGIN TO END WITH EXCEPTION OF OTHER NOTED TRAIL CONSTRUCTION FEATURES) = CONSTRUCT TALUS TRAIL (APPROXIMATELY 330' IN CONSTRUCT TALUS TRAIL (APPROXIMATELY 330' IN LENGTH) = CONSTRUCT ARMORED FORD STREAM CROSSING CONSTRUCT ARMORED FORD STREAM CROSSING [FORD #1 (C1) OR FORD #2 (C2)] = CONSTRUCT BANKED CORNER SWITCHBACKCONSTRUCT BANKED CORNER SWITCHBACK

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(TYP)

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(TYP)

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BEGIN 43°44'28.6"N114°34'01.4"W

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END 43°42'39.7"N114°32'41.3"W

AutoCAD SHX Text 43°44'03.1"N114°33'47"W

AutoCAD SHX Text 43°44'02.4"N114°33'46.2"W

AutoCAD SHX Text 43°43'43.8"N114°33'26.7"W

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NOT TO SCALE

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MILEPOST 3.0±43°43'16.9"N114°32'47.9"W

TYPICAL NATIVE SURFACE TRAIL SECTION TYPICAL TALUS TRAIL SECTION

PLAN VIEW

A

SECTION A-A

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TYPICAL TRAIL SECTIONS

TYPICAL ARMORED FORD CROSSING DETAIL

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TYPICAL BANKED CORNER SWITCHBACK DETAILD

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GRADE REVERSAL DETAIL & SECTIONS

DRAWING TITLE

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DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

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B.RICHINS

B.RICHINS

S.ROBNETT

2/15/2018

KETCHUM RANGER DISTRICT

SAWTOOTH

NATIONAL FOREST

TRAIL DETAILS &

SECTIONS

INTERMOUNTAIN REGION

(R04)

ALDEN GULCH TRAIL

CONSTRUCTION

PROJECT

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SLOPE ROUNDING IN COMMON MATERIAL

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1.5H:1V (MAX)

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EXISTING GROUND

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HIGH WATER MARK

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FLOW

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RETAINER TYPE AS SPECIFIED

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TREAD

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STREAM

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ROCK CHECK DAM

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BURY SIDE RETAINER PERPENDICULAR TO TREAD SURFACE

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BACKFILL WITH SUITABLE MATERIAL

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36" (TYP)

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BEGIN/END FORD WIDTH TO DAYLIGHT

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BEGIN/END FORD WIDTH TO DAYLIGHT

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BEGIN/END FORD WIDTH TO DAYLIGHT

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BEGIN/END FORD WIDTH TO DAYLIGHT

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ROCK RETAINER (LENGTH VARIES)

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SIDE-CAST UNSUITABLE OR WASTE MATERIAL. MINIMIZE DISTURBANCE.

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PLACED STONE MATERIAL FOR ARMORING

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2% (MAX)

AutoCAD SHX Text SWITCHBACK NOTES: : 1. CONSTRUCT HAVING A 10'-20' INTERIOR CONSTRUCT HAVING A 10'-20' INTERIOR RADIUS. 2. BERMS SHALL BE A MINIMUM 4' TALL. BERMS SHALL BE A MINIMUM 4' TALL. 3. COORDINATE INTERIOR BARRIER COORDINATE INTERIOR BARRIER PLACEMENT AND TYPE, AS APPLICABLE, WITH CO PRIOR TO CONSTRUCTING. 4. COORDINATE NEED FOR RETAINING WALL COORDINATE NEED FOR RETAINING WALL STRUCTURES, AS APPLICABLE, WITH CO PRIOR TO CONSTRUCTING IMPROVEMENTS. 5. DETAIL IS MEANT TO CONVEY GENERAL DETAIL IS MEANT TO CONVEY GENERAL LAYOUT PARTICULARS. FINAL LAYOUT TO BE DETERMINED ON THE GROUND.

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PLACED STONE MATERIAL FOR ARMORING AND EROSION CONTROL (TYP)

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SLOPE ROUNDING IN COMMON MATERIAL

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1.5H:1V (MAX) (NESTED ROCKS IN SIDE SLOPE NOT SHOWN FOR CLARITY)

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EXISTING GROUND (TALUS ROCKS NOT SHOWN FOR CLARITY)

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SIDE-CAST UNSUITABLE OR WASTE ROCK/STONE MATERIAL. MINIMIZE DISTURBANCE.

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2% (MAX)

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BACKFILL WITH SUITABLE MATERIAL

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LESS THAN 1-INCH HEIGHT DIFFERENCE BETWEEN NEIGHBORING ROCKS

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BASE ROCK

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SHOULDER ROCK (TYP)

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LEVELING COURSE

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NOT TO SCALE

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NOT TO SCALE

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AVERAGE

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EXISTING GROUND

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12 INCH MINIMUM SURFACE COURSE WHEN SPECIFIED

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FLOOD LINE

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% PROFILE GRADE

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GEOTEXTILE WHEN SPECIFIED

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ROCK SPILLWAY AS SPECIFIED

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FILL SLOPE

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CUT SLOPE

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FILL

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FINISHED GRADE

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CUT

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TYPICAL FILL SECTION

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TYPICAL CUT SECTION

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UNSUITABLE MATERIAL TO BE DISPOSED AT A LOCATION DESIGNATED ON THE GROUND

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SEE SECTION 911 TYPICAL SECTIONS

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ROCK SPILLWAY AS SPECIFIED

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SEE SECTION 911 TYPICAL SECTIONS

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OUTSLOPE % %

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OUTSLOPE % %

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L2 (10 FOOT MINIMUM)

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L3 (20 FOOT MINIMUM)

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EXISTING GROUND

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TOP OF CUT

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BOTTOM OF DIP

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SKEW

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4" TO 8" GABION ROCK SPILLWAY KEYED INTO SLOPE SIDE (MINIMUM 2' WIDTH/LENGTH)

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FINISHED GRADE

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