Project Description

Context of the project

The Wolf Creek Dam on the Cumberland River in southern Kentucky is nearly 2 km long and supports hydroelectric generation, flood control, navigation and recreational activities. Following discovery of regressive erosion in the underlying karsts, a contract was awarded to the Treviicos-Soletanche joint venture to rehabilitate the foundations of the dam.

Description of the project

The project involves repairing the dam to re-establish the watertightness of the dam/rock contact, and in particular:

  • Completion of the previous contract’s grouting at a depth of 100m, using sonic drilling and a water hammer.
  • Construction of a concrete wall, between the two grouting lines, at a depth of 85m (50m through the earth dam body and 35m in rock of varying strength from 50 to 200Mpa).

The wall must be very vertical, with a deviation tolerance of less than 0.15% at 85m, and a minimum thickness of 600mm.

Our solution

To solve the erosion issue, the joint venture built a barrier wall behind a 52,000 sq. metre, 1.8 metre thick, 85 metre deep diaphragm wall. The 91,000 sq. metre barrier wall, which combines secant piles and Hydrofraise® panels, runs through the embankment and extends downwards through 50 metres of clay and 35 metres of rock.

The project, which won a Deep Foundation Institute award, was handed over in 2014 following four and a half years of work.

Type of project:





Subsidiaries of Soletanche Bachy:

Nicholson Construction, Soletanche Bachy International

Project owner:

Prime contractor:

USACE Nashville District



Works period:

10/2008 – 09/2014

Types of techniques:

Icon diaphragm wall

Diaphragm wall

Icon secant piles

Secant piles

Icon grouting


Your country is: United States?

Key figures of the project


Related techniques

You have a project ?

Around the world, close to you. Soletanche Bachy is rooted in your territories to provide you with the solutions of foundation and soil technologies adapted to your needs.

Your country is: United States ?