Attachment 3 - Typical Overlay.pdf

PDF 292 KB Posted

Attached to
WRD Road Maintenance Federal contract opportunity
Solicitation number
1240BF23Q0072
Issued by
Department of Agriculture Forest Service

About this file

This document includes technical drawings and specifications for road maintenance work on the Tongass National Forest. The drawings provide details on typical road cross sections, overlay techniques, culvert installation, erosion control measures, and other aspects of road construction and repair. Additionally, the file references a related federal contract opportunity through the Department of Agriculture Forest Service for road maintenance services on the WRD Road in the Tongass National Forest. The solicitation is identified as number 1240BF23Q0072 and is seeking bids for road maintenance and repair work. No further information is provided on the terms, pricing, or response deadline for the contract opportunity.

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Text version

2%

2%

3-5%

DESIGN ROADWAY WIDTH

EXISTING GROUND

RECONDITIONED SUBGRADE

COMPACTED SPOT SURFACING

EXISTING

DESIGN ROADWAY WIDTH

EXISTING GROUND

RECONDITIONED SUBGRADE

COMPACED SPOT SURFACING

TYPICAL OVERLAY SECTION - CROWNED

OUTSLOPED SECTION

INSLOPED SECTION

SEE NOTE

NOTE: IN THOSE AREAS WHERE THE EXISTING ROAD, AFTER

RECONDITIONING IS WIDER THAN THE DESIGNED WIDTH OF

AGGREGATE, CENTER THE LIFT OF AGGREGATE ON ROAD

SURFACE AND FEATHER TO EXISTING SHOULDERS. WHEN

PLACING THE ADDITIONAL XXXX WIDTH OF AGGREGATE IN

TURNOUT AREAS AND SECTIONS REQUIRING CURVE

WIDENING, PLACE ADJACENT TO CENTERLINE LIFT AND

COMPACT TOGETHER.

NOTE: OUTSLOPED ROADS SHOULD BE USED WHEN ROAD

GRADES ARE GENTLE TO MODERATE (0% TO 8%) AND WHERE

CUTSLOPES ARE DRY. OUTSLOPED ROADS SHOULD BE

CONSTRUCTED WITH ROLLING DIPS FOR DRAINAGE. THERE

SHOULD BE NO DITCH ON THE INBOARD SIDE OF THE

OUTSLOPED ROAD.

NOTE: INSLOPED ROADS SHOULD BE USED WHEN ROAD

GRADES ARE MODERATE TO STEEP (6% AND UP) AND WHERE

TERRAIN MAY BE STEEP OR SLIPPERY. INSLOPED ROADS

ARE ALSO IDEAL FOR HIGHLY ERODIBLE AREAS. EXTRA

ATTENTION SHOULD BE PAID TO ESTABLISHING DITCHES AND

DRAINAGE FOR INSLOPED ROADS.

3-5%

DESIGN ROADWAY WIDTH

EXISTING GROUND

RECONDITIONED SUBGRADE

COMPACTED SPOT SURFACING

DRAWING TITLE

DRAWN

DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

OFSHEET

United States Department of Agriculture Forest Service

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R10

ALASKA REGION

KMRD Fire Cove Road Maintenance

TONGASS NATIONAL

FOREST

KM Ranger District

OVERLAY

ROAD SHAPE

XX/XX/XXXX

FS090523_R102013_L1-002.dwg

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Sheets and Views
R10 TONGASS - STANDARD ROADS DRAWINGS-COVERSHEET
R10 TONGASS - STANDARD ROADS DRAWINGS-EST QTY
R10 TONGASS - STANDARD ROADS DRAWINGS-TYP X-SECT
R10 TONGASS - STANDARD ROADS DRAWINGS-OVERLAY
R10 TONGASS - STANDARD ROADS DRAWINGS-CULVERT
R10 TONGASS - STANDARD ROADS DRAWINGS-STAKING
R10 TONGASS - STANDARD ROADS DRAWINGS-LINEAR GRADING 1
R10 TONGASS - STANDARD ROADS DRAWINGS-LINEAR GRADING 2
R10 TONGASS - STANDARD ROADS DRAWINGS-EROSION CONTROL
R10 TONGASS - STANDARD ROADS DRAWINGS-DEWATERING
R10 TONGASS - STANDARD ROADS DRAWINGS-PIT & QUARRY

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