Laserfiche WebLink
<br />F, Hatchie River bridge failure illustrates a failure caused by stream <br />instability, The National Transportation Safety Board concluded: <br /> <br />". , . The probable cause of the collapse of the Northbound U,S. 51 <br />spans was the northward migration of the main river channel which <br />the Tennessee Department of Transportation failed te) evaluate an,j <br />correct, Contributing...wcls the lack of redundancy in the design of <br />the bridge spans." <br /> <br />(Note: We will discuss the Hatchie River bl"idge failure later in the course <br />(see Supplementary Module D). <br /> <br />G. Slides showing scour and stream stability problems at bridSjes at <br />various locations in U,S, illustrate the extent of the problem, <br /> <br />NOTES: <br /> <br />1,3 <br />