The purpose of amendment 003 is to change the bid opening date and clarify the period of perofmance.

The purpose of amendment 0002 is to change bidopening date, period of performance and add a provision for bridge use during winter months.

The purpose of this amendment is to clarify bid opening time and date.

This is a total Small Business Set Aside under NAICS code 237310 size standard $45M.

Bid opening will be held at Superior National Forest Supervisors Office, 8901 Grand Ave. Place, Duluth, MN 55808 at time and date specified on Invitation for Bids.

The intent of this contract is to provide for replacement of three trail bridges in the Superior National Forest: Pincushion

Mountain Loop Bridge #2 Replacement @ MP 2.143, Pincushion Mountain Loop Bridge #6 Replacement @ MP 0.545, and

Caribou Snowmobile Trail No. 91044 over Noname Creek Bridge Replacement @ MP 10.556. The project will include

traffic control monitoring; demolition and removal existing bridges, furnish and install new timber abutments and wing

walls and all associated hardware; furnish and install rip rap, backfill and geotextile drainage material for cribbing; furnish

and place aggregate; install permanent bridge signs and object markers; furnish and install timber superstructure –

including dowel-laminated deck system, curb/railing systems, deck wearing surface (where designated) and all associated

hardware; approach rail system and all associated hardware where designated; seed and mulch all disturbed areas; and

protect the waterways and associated wetlands from siltation and other destructive impacts of construction.