12034320Q0037Drawings.pdf

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Example of roadway before obliteration with five foot or higher cut slopes

Example of roadway before obliteration with less than five foot cut slopes.

U.S. DEPARTMENT OF AGRICULTURE

FOREST SERVICE

Helena-Lewis & Clark NATIONAL

FOREST GREAT FALLS, MONTANA

FOREST ROAD

OBLITERATION

BEFORE AND AFTER PHOTOS

PAST OBLITERAnON WORK

DESIGNED:

DRAWN:

CHECKED:

"After" picture of same road as shown at left. Cut and fill slope material has been placed on the scarified roadbed and live vegetation material has been machine placed across the roadway to promote re-vegation. If ordered by the Contacting Officer, all disturbed surfaces will be seeded with appropriate grass seed. Some roads may require that a 3-5 foot passage way be provided that is not blocked by debris or large woody material. This passage way is to allow animal and human foot traffic. A tread is not required in this passage way.

"After" picture of same road as shown at left. Roadbed has been scarified to a minimum depth 12 inches and a maximum depth of 24 inches. Vegetation material has been machine placed to promote re-vegetation. If ordered by the Contracting Officer, all disturbed surfaces will be seeded with the appropriate seed mix. Note that if this was a designated snowmobile trail the scarification depth would also be 12 to 24 inches deep but no large woody debris, or other large obstacles would be placed on the road surface that would create hazards for snowmobiles.

S. Van Sickle

R. Gardiner

D. Woods

DATE:

DATE:

DATE:

3/2010

I

DATE REVISION

3/2010 3/2019

§( DRAWING NAME )

( SHEET __2._ )

Existing Cut

Slope

Road Surface

CULVERT REMOVAL

LIVE STREAM

A

Deposit Fill Mat'I on

Scarified Road Surface.

Existing Fill

Slope

Material

Existing Fill

Slope

NOTES:

1. Dewatering and stream restoration will be done under Excavator Rental Item of Schedule B. A Government Inspector is required to be on site during the course of this work and Contractor is required to give four working days notice prior to starting.

2. Government will obtain all necessary permits to work in live streams and Contractor is required to comply with the specifications in the permits.

3. Remove all fill material from floodplain down to the original channel. Place this removed material on the scarified roadbed. Fully re-contour the adjacent roadway.

4. Transplant live vegetation, sod and scatter available woody debris, including root wads on finished slopes to help establish new vegetation.

5. Sedimat material will be purchased and placed by the Government below the culvert site to capture dirt and silt generated by the culvert removal.

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U.S. DEPARTMENT OF AGRICULTURE

FOREST SERVICE

Helena-Lewis & Clark NATIONAL

FOREST GREAT FALLS, MONTANA

FOREST ROAD

OBLITERATION

TYPICAL ROUTE OBLITERATION

AND CULVERT REMOVAL

DESIGNED:

DRAWN:

CHECKED:

S. Van Sickle R. Gardiner D. Woods

Scarify road surface to a depth of 12-24".

When ordered by the Contracting Officer, leave a 3-5 foot passage way free of debris to promote animal and human foot traffic

Excavate material and place on remaining rm bed/

Place woody debris on re-contoured surface help prevent soil erosion. All slash must be compacted so that it is in contact with the soils.

Exception; do not place large woody material on designated snowmobile routes. If ordered all disturbed surfaces must be seeded in accordance with Specification C-3-3.

SECTION A-A

NOTE: This typical cross section will apply to all obliteration work.

Place woody material and debris on slope surface to prevent

Remove culvert and dispose off Government property erosion.

n,m ,;2n10

IDATE: 3/2010

DATE: 3/2019

SECTION B-B

REVISION

Place fill material on surface balancing amount on both sides. Avoid creating a berm.

Re-establish stream bank full width and flood plain.

§( DRAWING NAME )

ACAD.DWG

( SHEET __J_ )

oblitcover