Condition Survey of Lock and Dam 52, Ohio River.
Final rept. Jun 72-Mar 74,
ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MISS
Pagination or Media Count:
A program to conduct a condition survey of Lock and Dam 52, which is located on the Ohio River near Paducah, Kentucky, was authorized and funded by the U. S. Army Engineer District, Louisville, in June 1972. Lock and Dam 52 was constructed approximately 45 years ago. The purpose of this investigation was to determine the general condition of the structure in order that effective plans could be made to accommodate present and future river traffic. The U. S. Army Engineer Waterways Experiment Station was contracted to conduct a part of the investigation, including a crack survey, borehole camera studies in drilled holes, underwater television camera crack studies, and sonic studies of the structure. The Ohio River Division Laboratory ORDL conducted physical tests and a petrographic examination of drilled concrete cores. Results of ORDLs tests are also included in this report. The results of the investigations indicate that the concrete in the underwater sills, the piers, and the fixed weir is free from any deleterious chemical reactions. No silica-gel deposits, reaction rims, fractures, or other signs of distress due to alkali-aggregate reaction were found. Cracking of the concrete was extensive, but not excessive, and apparently can be attributed to such physical causes as freeze-thaw cycles of the exposed concrete, normal shrinkage,and foundation problems.
- Civil Engineering