Level II scour evaluations follow a process in which hydrologic, hydraulic, and sedimenttransport data are evaluated to calculate the depth of scour that may result when a given discharge is routed through a bridge opening. The results of the modified Level II analysis for structure 1-65-118-4838 on Interstate 65 crossing Crooked Creek in Marion County, Indiana, are presented. The site is in the city of Indianapolis in the central part of Marion County. Scour depths were computed with the Water Surface PROfile model, version V050196, which incorporates the scour-calculation procedures outlined in Hydraulic Engineering Circular No. 18. Total scour depths at the piers were approximately 8.3 feet for the modeled discharge of 7,000 cubic feet per second and approximately 9.2 feet for the modeled discharge of 9,870 cubic feet per second.
|Title||Modified level II streambed-scour analysis for structure I-65-118-4838 crossing Crooked Creek in Marion County, Indiana|
|Authors||B.A. Robinson, D. C. Voelker, R. L. Miller|
|Publication Subtype||USGS Numbered Series|
|Series Title||Open-File Report|
|Record Source||USGS Publications Warehouse|
|USGS Organization||Indiana Water Science Center|