Since 1983, AVI has been extensively involved with the investigation, design and construction of mine land reclamation projects. This includes over 20 major projects with a total construction cost in excess of 150
million dollars.

Each year the Department of the Interior, Office of Surface Mining Reclamation and Enforcement (OSM)
recognized outstanding reclamation projects throughout the nation.

AVI has been fortunate enough to receive this honor twice; 1) for the Silver Reef Reclamation Project in
Southern Utah, and 2) for the Shirley Basin Uranium District Project in Central Wyoming. The Shirley Basin
Uranium District Reclamation Project was a seven year, $35 million dollar project – one of the single largest
abandoned mine land projects in the country. Reclamation of this open pit uranium mine required 33 million cubic yards of earth movement and relocation of 3.2 miles of the
Little Medicine Bow River.

Since 1984 AVI has inventoried and prioritized over 2,000 abandoned mine sites. The most recent project involved
the statewide inventory of pproximately 800 abandoned mine sites for the State of Wyoming. All sites were mapped with Trimble GEO XM hand held GPS units. Data for each
site was logged in the GPS unit using a data dictionary developed specifically for the mine inventory. All field
collected information was exported to a final project data base developed in “Microsoft Access” prior to import into
the project final GIS deliverable.

• AWARDS •
RED BOY MINE
Wyoming Engineering Society
Honorable Mention

• AWARDS •
SILVER REEF PROJECT
WINNER
OSM Reclamation Project of the Year

• AWARDS •
SHIRLEY BASIN
URANIUM DISTRICT
RECLAMATION PROJECT
WINNER
OSM Reclamation Project of the Year

MINING METHODS & MINERALS

• Open-pit coal, uranium & bentonite mines
• Uranium mill tailings
• Underground hard rock mines (gold, silver, copper & uranium)
• Underground coal mines
• Underground coal mine fires

________________________________________________

SPECIAL PERMITTING REQUIREMENTS

• Threatened & endangered wildlife
• Cultural resources
• Wetlands
• Federal agency coordination & approvals
• Work in designated wilderness areas

________________________________________________

SYNOPSIS OF SCOPE OF WORK CATEGORIES

• Over 60 million cubic yards of earth movement
• 1,000 underground mine closures; shafts, adits & portals
• Stabilization of over 250 subsidence openings
• Work on 15 underground coal mine fires
• 3.2 miles of river relocation & stabilization
• Open-channel stabilization (50,000 + cubic yards of riprap)
• Restoration of over 4,000 acres of land disturbed by past mining activities