Maryland SHA's Procedure for Assessing Existing Bridges for Scour Vulnerability and for Rating Unknown Foundations

by Leonard N. Podell, (M.ASCE),
Stanley R. Davis, (M.ASCE),
Dan Sajedi,



Document Type: Proceeding Paper

Part of: North American Water and Environment Congress & Destructive Water

Abstract:

The Maryland State Highway Administration developed a recommended screening procedure for rating existing bridges for Item 113, Scour Critical Bridges, in the National Bridge Inventory (Maryland SHA, 1992). The procedure serves as a guide in identifying those bridges with site conditions that permit a rating of Item 113 without a detailed scour, hydrology, hydraulic and structural stability analysis. The screening process requires the application of engineering judgment by qualified structural, hydraulic and geotechnical engineers in order to arrive at reasonable and prudent decisions.



Subject Headings: Bridge foundations | Highway bridges | Scour | Ratings | Bridge tests | Structural stability | Inventories

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