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Scour Critical Bridges in Louisiana

1,302 bridges in Louisiana at risk from water erosion around foundations.

Scour Critical Bridges

Scour is the erosion of soil and rock around a bridge's foundation caused by moving water. When foundations are exposed or undermined, a bridge can collapse even if its deck and superstructure are in good condition. Scour is the leading cause of bridge failures in the US. These 1,302 bridges in Louisiana have been identified as vulnerable to scour damage.

Clear
Bridge State Scour Status Condition Year Built ADT
LITTLE TURKEY CREEK Louisiana Scour Critical — Countermeasures Installed Good 2003 1,059
BAYOU WYKOFF Louisiana Scour Critical — Countermeasures Installed Fair 1959 1,042
KYIAIES CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1975 1,026
MEDENHAUSE CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1975 1,026
SELZERS CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1978 1,022
SALINE BAYOU Louisiana Scour Critical — Countermeasures Installed Good 1982 1,022
CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1942 1,020
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1962 1,020
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1962 1,020
BEAVER CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1962 1,020
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1956 1,020
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1956 1,020
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1962 1,020
GRAND BAYOU Louisiana Scour Critical — Countermeasures Installed Poor 1977 1,013
BAYOU LAMOURIE Louisiana Scour Critical — Countermeasures Installed Poor 1950 1,009
RAWSON CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1970 1,007
BLACKWATER BAYOU Louisiana Scour Critical — Countermeasures Installed Poor 1960 1,003
COULEE Louisiana Scour Critical — Countermeasures Installed Fair 1974 1,000
MIDDLEFORK BAYOU DARBONN Louisiana Scour Critical — Countermeasures Installed Fair 1949 990
MIDDLEFORK B.DARBONNE RL Louisiana Scour Critical — Countermeasures Installed Fair 1949 990
BAYOU PAUL Louisiana Scour Critical — Countermeasures Installed Good 1994 985
CANAL/CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1964 983
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1991 980
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1970 977
BAKER CANAL Louisiana Scour Critical — Countermeasures Installed Poor 1960 973
BRUSH CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1974 972
COULEE KENNYS Louisiana Scour Critical — Countermeasures Installed Fair 1976 970
BRUSHY BAYOU Louisiana Scour Critical — Countermeasures Installed Poor 1975 968
TIGER BRANCH Louisiana Scour Critical — Countermeasures Installed Fair 1924 962
CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1967 943
DRAINAGE BAYOU Louisiana Scour Critical — Countermeasures Installed Poor 1960 941
ANACOCO CREEK Louisiana Scour Critical — Countermeasures Installed Good 1997 937
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1954 933
DRAIN Louisiana Scour Critical — Countermeasures Installed Poor 1954 933
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1954 933
BRUSHY CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1978 928
WALNUT CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1980 927
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1980 927
REDWINE CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1957 917
MADDEN CREEK BR. Louisiana Scour Critical — Countermeasures Installed Fair 1977 917
NATALBANY RIVER Louisiana Scour Critical — Countermeasures Installed Poor 1971 913
CANAL Louisiana Scour Critical — Countermeasures Installed Fair 1971 913
SIMS BAYOU Louisiana Scour Critical — Countermeasures Installed Fair 1982 913
JOES BAYOU Louisiana Scour Critical — Countermeasures Installed Fair 1954 894
TURKEY CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1971 892
DRAIN Louisiana Scour Critical — Countermeasures Installed Poor 1927 890
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1925 890
LYNN CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1950 886
CHOUDRANT CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1951 882
EDWARDS BRANCH Louisiana Scour Critical — Countermeasures Installed Fair 1973 882

Scour Critical Rating Codes

Code 2 — UnaddressedBridge is scour critical with no countermeasures installed. The foundation is vulnerable and no protective action has been taken.
Code 3 — Countermeasures InstalledProtective measures (riprap, sheet piling, etc.) have been installed to reduce scour risk, but the bridge remains classified as scour critical.
Code 6 — Countermeasures IneffectiveProtective measures were installed but have been assessed as ineffective. The bridge requires re-evaluation and additional action.

About Scour Critical Bridges

Scour critical bridges have been identified through underwater inspection or analysis as having foundations that are unstable or could become unstable during flood conditions. FHWA requires action plans for all scour critical bridges. Famous scour failures include the 1987 Schoharie Creek Bridge collapse in New York.

All Bridges Poor Condition Historic Bridges Bridge Stats