Phase 4 Spec_403.01 page 39.doc

Amendment 2

ATCH 3 AG-0355-S-09-0004

May 7, 2009

Recovery - West Fork Rock Creek Road #2071 Phase 4

Beartooth Ranger District, Custer National Forest

306 - Dust Palliative

306.03 General.

Add the words “or rainy” after the word “foggy” in the third sentence.

306.04 Preparation and Application.

Add the following:

Compact by having vehicles with a mass greater than 1 ton traverse the road a minimum of three times.

306.08 Payment. Replace this section with the following:

Separate payment is not made for Dust Palliative. Include the cost of Dust Palliative in the price bid for other items in the contract.

403.01 Description

Add the following:

Asphalt cement shall be Performance Graded Asphalt Binder (PGAB 64-22) or equal as specified by Montana Department of Transportation.

411 - Asphalt Prime Coat

411.06 Asphalt Application.

Add to the fifth paragraph:

If emulsified asphalt is used, use choker aggregate.

602 - Culverts and Drains

602.03 General:

Add the following:

Ensure that the final installed alignment of all pipe allows no reverse grades, and does not permit horizontal and vertical alignments to vary from a straight line drawn from center of inlet to center of outlet by more than 2 percent of pipe center length or 1.0 feet, whichever is less.

607 - Cleaning, Reconditioning, and Repairing Existing Drainage

607.04 Cleaning Culverts in Place.

Add the following:

If approved by the CO, all or part of the pipe designated to be cleaned in-place may be removed, cleaned, and re-laid in accordance with Section 602. In these cases, furnish all material required to replace damaged pipe and joints and relay the pipe.

Section 617. Guardrail

617.05 Add the following to the first paragraph:

Provide the CO with a copy of the Manufacturer’s Installation Instructions for Guardrail Terminal Sections at least 10 working days prior to installation.