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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
CANEY CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1966 1,360
CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1966 1,360
ALLEN CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1968 1,360
DRAIN Louisiana Scour Critical — Countermeasures Installed Poor 1968 1,360
SUGAR CREEK RELIEF Louisiana Scour Critical — Countermeasures Installed Fair 1979 1,360
DRAINAGE CANAL Louisiana Scour Critical — Countermeasures Installed Fair 1968 1,352
SANDY CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1964 1,348
BEECH CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1965 1,348
BEECH CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1965 1,348
GODFREY CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1965 1,348
SPRING CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1994 1,342
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1954 1,342
CHAPPEPEELA CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1963 1,342
CHAP RELIEF CR. Louisiana Scour Critical — Countermeasures Installed Fair 1963 1,342
BEAVER CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1966 1,341
COON GULLY Louisiana Scour Critical — Countermeasures Installed Fair 1973 1,337
Babin Canal Louisiana Scour Critical — Countermeasures Installed Fair 1979 1,336
CANEY BRANCH Louisiana Scour Critical — Countermeasures Installed Fair 1955 1,335
HAMILTON CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1957 1,333
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1982 1,329
BUSHNECK BAYOU Louisiana Scour Critical — Countermeasures Installed Fair 1958 1,316
DRAIN Louisiana Scour Critical — Countermeasures Installed Poor 1958 1,306
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1954 1,306
BAYOU DARBONNE Louisiana Scour Critical — Countermeasures Installed Fair 1963 1,302
LOBELL CREEK Louisiana Scour Critical — Countermeasures Installed Good 1961 1,298
PINEY BAYOU Louisiana Scour Critical — Countermeasures Installed Poor 1966 1,298
BAYOU CHICOT Louisiana Scour Critical — Countermeasures Installed Fair 1970 1,294
BICKHAM BAYOU Louisiana Scour Critical — Countermeasures Installed Poor 1981 1,286
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1980 1,273
BIG CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1955 1,264
LITTLE CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1962 1,260
LITTLE CROOKED CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1990 1,250
BOGGY BAYOU Louisiana Scour Critical — Countermeasures Installed Fair 1960 1,247
LILLEGS CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1955 1,241
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1977 1,236
BENS CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1955 1,235
GEE CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1972 1,230
FORKER CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1950 1,229
CANEY CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1978 1,222
SPRING BAYOU Louisiana Scour Critical — Countermeasures Installed Fair 1972 1,214
BAYOU LANANA Louisiana Scour Critical — Countermeasures Installed Fair 1968 1,210
CREEK Louisiana Scour Critical — Countermeasures Installed Fair 1930 1,209
BLACK BAYOU Louisiana Scour Critical — Countermeasures Installed Poor 1977 1,209
RED BAYOU Louisiana Scour Critical — Countermeasures Installed Fair 1930 1,209
DRAIN Louisiana Scour Critical — Countermeasures Installed Poor 1959 1,205
CRAINS CREEK Louisiana Scour Critical — Countermeasures Installed Poor 1959 1,205
CREEK Louisiana Scour Critical — Countermeasures Installed Good 2009 1,200
FiFi Bayou Trib Louisiana Scour Critical — Countermeasures Installed Fair 2000 1,200
PATRICKS CANAL Louisiana Scour Critical — Countermeasures Installed Fair 1981 1,200
WEST BRANCH Louisiana Scour Critical — Countermeasures Installed Fair 1959 1,199

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