« Back to Projects Gallery

Cannelton Hydroelectric Project

Location: Hawesville, Kentucky
Client: American Municipal Power, Inc.
Services: Materials Testing

Project Description
The Cannelton Project is located on the Kentucky shore of the Cannelton Locks and Dam located on the Ohio River 721 miles below Pittsburgh, Pennsylvania. It is three miles upstream from Cannelton, Indiana. The navigation locks are located on the right descending bank or Indiana side of the river. The upper pool maintained above the dam extends upstream for a distance of 114 miles to the McAlpine Locks and Dam at mile 607 and for a short distance up the Salt River. The Powerhouse will enclose three horizontal-shaft bulb turbines with an expected running diameter of 7.5 meters. Each generator will produce approximately 28 MW at a 6.9 kV buss voltage for a total of 84 MW and 390,000 mwhs annually. Each generator buss will connect to the main step-up power transformers and then switch gear and take-off structure on top of the entrance building to the powerhouse and on to the 138kV transmission line. The transmission line will extend approximately 8.3 miles from the plant and will connect to a Louisville Gas and Electric substation.

Scope of Services
Thelen Associates, Inc. has been retained by the Owner, American Municipal Power, Inc. as the Materials Testing Consultant for this project. Due to the size and magnitude of this project, Thelen has established on-site laboratory testing facilities (construction trailers). These trailers (3) have been retro-fitted to accommodate aggregate, cement, concrete and soil testing applications. Additional laboratory Testing Program is to assist the Owner’s Engineer (MWH Americas, Inc.) in monitoring and confirming the Powerhouse Contractor’s (Walsh) Quality Assurance and Quality Control Programs during the construction of this 3 year project. Various types of testing services are being performed, in both field and on and off-site laboratory applications, for soils, cement, aggregates, concrete placement, soil-cement applications and other miscellaneous construction materials. Since the start of this project in March, 2011, Thelen has provided anywhere from 3 to 5 various levels of Certified Engineering Technicians on a daily basis. The Contractor is working 2 shifts per day on this project in order to meet the owner’s schedule.


Worked performed by Thelen Associates, Inc.