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US 62/641 Relocation - Kentucky Lock Addition Bridge

Accommodating a new lock design

  • 1.7

    Miles

  • 3

    FT Bridge

  • 12K

    FT Approach

  • Grand Rivers, Kentucky

    Grand Rivers, Kentucky

Helping to ensure the future water supply for many Kentucky communities

When the United States Army Corps of Engineers (USACE) Nashville District designed and constructed a new lock at the Kentucky Lake Lock and Dam site, US 62/641 had to be relocated downstream of the dam. The relocation required 1.7 miles of new roadway and a new 10-span, 3,000-foot-long bridge over the swift waters of the Tennessee River. The project also required 12,000 feet of approach embankment. We were hired to develop and oversee geotechnical explorations for roadway and structures with special consideration taken for the karst limestone conditions in the project area. Significant monitoring and instrumentation for deep drilled shaft construction was incorporated using sonar calipering methods, video inspection of underwater surfaces, and cross-hole sonic logging. 

Large settlements of foundation soils from the new embankment construction above the existing dam toe drains presented a challenge. In order to reduce settlements to acceptable weight limits, we designed a lightweight fill embankment consisting of expanded polystyrene (EPS) geofoam blocks instead of engineered fill soils. This was the first use of geofoam in the state of Kentucky and the design received an award. 

At a Glance

Offices
Meet Our Team

Tony Hunley, Vice President, Bridge Sector Leader

Bridges aren't just science, they’re art. Everything we do—from basic to long span—shows our public commitment and our passion for bridges.
Tony Hunley Vice President, Bridge Sector Leader Read More

Mike Perry, Senior Principal, Regional Business Leader, Transportation (US Southeast & North Central)

As a father of three, safety is always my priority. One day, my boys will be driving the roads and bridges that I design.
Mike Perry Senior Principal, Regional Business Leader, Transportation (US Southeast & North Central) Read More

Tony Hunley

Vice President, Bridge Sector Leader

Mike Perry

Senior Principal, Regional Business Leader, Transportation (US Southeast & North Central)

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