Laserfiche WebLink
Printed on:Friday 10/04/2024 01:06 PM 29C0481/AAAB/144921Pageof3 <br />Department of Transportation - Division of Maintenance Structure Maintenance & Investigations <br />5 <br />UNDERWATER INVESTIGATION DETAILS - NOT APPLICABLE FOR THIS BRIDGE. <br />STEEL INVESTIGATION DETAILS <br />SCOPE AND ACCESS <br />This report addresses hydraulic issues only and findings of a field investigation by the Structure Maintenance & Investigations (SMI) <br />Local Agency Hydraulics Branch. The channel was dry and a full inspection of the channel and substructure elements was performed. <br />The only National Bridge Inventory (NBI) item reviewed was the item 113 scour code (and applicable SNBI codes - see REVISIONS <br />below). All other NBI codes and elements ratings were carried over from the most recent Routine Inspection Report. <br />HISTORY <br />There was no scour reported in the two archived most recent routine investigations. <br />No Plans are available at this time. <br />REVISIONS <br />The NBI 113 scour code has been changed from 6: "Scour calculation/evaluation has not been made." to 8: "Bridge foundations <br />determined to be stable for the assessed or calculated scour condition." <br />A new federal coding guide is forthcoming. The new guide is the Specifications for the National Bridge Inventory (SNBI). The NBI 113 <br />scour code will be replaced with the SNBI Scour Vulnerability code. During the transition, SMI bridge reports will document both the 113 <br />and the Scour Vulnerability codes. The Scour Vulnerability code has been revised from 0: "Scour appraisal has not been completed." to <br />A: "Scour appraisal completed. Bridge determined to be stable for scour." <br />MISCELLANEOUS <br />The SNBI Channel Protection code was assigned N/A (Not Applicable) given no channel protection was noted. <br />The SNBI Scour Condition Rating code was assigned a 7 (Good). <br />WATERWAY <br />One to two inches of sediment build up was noted in each cell. <br />Upstream flow is well aligned with the culvert opening. <br />No significant scour or scour potential was noted. <br />INSPECTION COMMENTARY <br />- NOT APPLICABLE FOR THIS BRIDGE. <br />CONDITION INFORMATION <br />SPECIAL INSPECTION INFORMATION