| Abstract: | The modified potential-scour index described in this report is based on a potential-scour index used by the U.S. Geological Survey Maryland District (Maryland index), and a prototype index developed by the U.S. Geological Survey Tennessee District (Tennessee index). The modifications were made to (1) improve the technical content of theMaryland index, and (2) provide a more extensive set of index variables for assessment of potential scour at bridges. The report demonstrates and describes problems that were encountered when using the Maryland index in a study of county- maintained bridges in Maryland from 1993 to 1995.The modifications made to specific index variables and ranking values in the Maryland index are presented and discussed. A comparison of potential-scour ratings from the modified potential- scour index, as applied to two bridges, is presented.This comparison indicates that the modified potential-scour index produces potential-scour ratings that most consistently reflect scour conditions observed at these bridges. |
| Genre: | USGS Numbered Series |
| ProdID: | 22900 |
| Citation Author: | Doheny, Edward J. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | iv, 16 p. ;28 cm. |
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| Citation Publisher: | U.S. Geological Survey ;
Branch of Information Services [distributor], |
| Citation Series: | Open-File Report |
| Citation Series Code: | OFR |
| Citation Series Number: | 96-554 |
| Citation Search Results Text: | A modified index for assessment of potential scour at bridges over waterways; 1996; OFR; 96-554; Doheny, Edward J. |
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| Citation Year: | 1996 |
| Type: | citation/reference |
| Text: | A modified index for assessment of potential scour at bridges over waterways; 1996; OFR; 96-554; Doheny, Edward J. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/of/1996/0554/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/of/1996/0554/report.pdf |
| Date Other: | Tue, 1 Jul 1997 00:00 -0500 |
| Publisher: | U.S. Geological Survey ;
Branch of Information Services [distributor], |
