Lock Wall Expedient Repair Demonstration Monitoring, John T. Myers Locks and Dam, Ohio River

Abstract

Abstract : The lock chambers at John T. Myers Locks and Dam are very susceptible to wall damage from barge impact and abrasion. The majority of the damage includes gouges and spalls in the concrete adjacent to a lock wall armor strip. Many of the damaged regions are next to a vertical joint. The majority of the damage occurs in the 1,200-ft lock chamber as opposed to the 600-ft chamber. Innovative expedient repair methods and techniques that will not disrupt river navigation were evaluated and demonstrated. Non-traditional materials for repair and rehabilitation of concrete structures, such as fiber reinforced polymer (FRP) composites, were evaluated for specific application to inland hydraulic navigation locks and dams. This Monitoring Completed Navigation Projects (MCNP) expedient lock wall repair demonstration consisted of five aspects: (1) evaluating the John T. Myers Locks and Dam wall armor system, (2) monitoring the repair of the 600-ft chamber upper land-wall approach vertical joint, (3) monitoring the repair of the 600-ft chamber lower landwall approach vertical joint, (4) monitoring the repair of the 1,200-ft chamber upper-river approach wall, and (5) evaluating the feasibility of using fiber reinforced polymer (FRP) composites for inland hydraulic structure application.