Completed in 1986 by Mole Constructors, the A.R. Davis, Phase 4 project entailed approximately 3,484 linear feet of 117-inch tunnel, employing a 117-inch Lovat Tunnel Boring Machine. Excavation occurred through limestone, with the utilization of cellular concrete annulus backfill. Depths ranged from 30 feet to 70 feet.
Project Details
- Owner: City of Austin Water Utility
- Location: Austin, Texas, United States
- Performed as: Mole Constructors, Inc.
- Project value: $3,831,771.00
- Completion Date: 1986