Project consist of the construction of two Tie-Back retaining walls to stabilize highway slopes along U.S. 441 inside the Great Smoky Mountain National Park. Wall 1 was approximate 300 feet in length and up to 35 feet in height with sloping backfill and soldier piles bearing in colluvium. Wall face consisted of pre-cast panels supported in steel H-piles anchored into bedrock with anchors up to 210 feet in length. Wall 2 consists measured 200 feet in length and constructed of combined soldier piles bearing in bedrock and tie-back anchors anchored into bedrock.
Provided continuous engineering inspection during the installation of drilled piers and rock-anchor tiebacks. Provided Quality Assurance activity for proof testing of tiebacks. Monitored fresh concrete and grout. Performed Quality Control testing of concrete and aggregate materials. Observed and inspected pavement operations.