Recently Completed
Interstate 77 - Tunnel restoration project |
| Restoration of the I-77 Big Walker Mountain and East River Mountain Tunnels |
Project at a Glance
May 2006
Est Completion Date
November 2008
Cost
$16 million
District
Bristol
Contact
Rob Griffith, P.E.
276-988-2566
What's been accomplished
The $16 million restoration project for the Interstate 77 Big Walker Mountain and East River Mountain Tunnels was completed on time and within budget in early November 2008.The following major repairs were accomplished between May 2006 and November 2008:
Big Walker Mountain Tunnel & East River Mountain
tunnels
- Cleaned all tunnel drainage systems.
- Removed and
replaced asbestos fire extinguisher cabinets with stainless steel
cabinets.
- Removed and replaced damaged wall tiles on over 2,300 square
feet of space inside the tubes.
- Addressed tunnel leaks.
- Removed and replaced the roadway curb tip throughout the
tunnels.
- Installed a new barrier wall throughout the
tunnel.
- Removed and replaced old handrail with new stainless steel
handrail.
- Repaired sections of concrete on the tunnel walls and
sidewalk.
- Inspected and removed deteriorated concrete from
ventilation duct openings and expansion joints.
Big Walker Mountain Tunnel only
- Replaced a section of the tunnel
ceiling damaged due to a vehicle fire.
- Improved and repaired drainage
configuration at select locations.
Contacts
Rob Griffith, P.E., 276-988-2566Andy Fowler, 276-228-5571
