Project Location: Austin-Bastrop, Texas
Client: ABB Sistemas, S.A. de C.V., Nuevo León, México
Dates: February 2001 to March 2001

Five transmission towers for 345kV lines in Bastrop County, Texas, help to deliver energy from the Fayette Power Plant to the city of Austin. The loading conditions of these towers have been modified and the existing foundation elements had to be revised under increased loads. A geotechnical investigation project was carreid out by LCR&A for locations near each tower. A report was prepared and delivered to the client.

Results from the geotechnical studies were used while modeling the existing drilled shafts under new loadings. Site inspections helped to determine additional constraints or construction information for the existing structures. A full report was delivered to the client regarding the expected response of the existing foundation. The report included recommendations for strengthening four of the twenty drilled shafts under investigation.