Scour Critical Bridges in Florida

357 bridges in Florida 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 357 bridges in Florida have been identified as vulnerable to scour damage.

Clear
Bridge State Scour Status Condition Year Built ADT
SMACKS BAYOU CANAL Florida Scour Critical — Countermeasures Installed Fair 1960 447
SEASHELL CANAL Florida Scour Critical — Countermeasures Installed Fair 1982 400
Aucilla River Florida Scour Critical — Countermeasures Installed Poor 1984 400
Long Creek Florida Scour Critical — Countermeasures Installed Fair 1966 400
Canal Florida Scour Critical — Countermeasures Installed Fair 1977 322
RED HOUSE BRANCH Florida Scour Critical — Countermeasures Installed Fair 1991 301
NEW RIVER Florida Scour Critical — Countermeasures Installed Good 1992 300
GRAFF CANAL Florida Scour Critical — Countermeasures Installed Good 1950 300
FALLING CREEK Florida Scour Critical — Countermeasures Installed Fair 1968 300
ROBINSON BRANCH Florida Scour Critical — Countermeasures Installed Fair 1968 300
ROTHS CANAL Florida Scour Critical — Countermeasures Installed Fair 1950 270
SUWANNEE RIVER Florida Scour Critical — Countermeasures Installed Fair 1951 250
Ochlockonee River Florida Scour Critical — Countermeasures Installed Poor 1984 250
LATERAL CANAL AB Florida Scour Critical — Countermeasures Installed Fair 1965 230
LOUISE BAYOU Florida Scour Critical — Countermeasures Installed Fair 1963 230
MID-PRONG ST MARYS RIVER Florida Scour Critical — Countermeasures Installed Fair 1957 200
INDIAN RIVER Florida Scour Critical — Countermeasures Installed Fair 1964 170
N PRONG ST MARYS RIVER Florida Scour Critical — Countermeasures Installed Poor 1970 151
SIMMS CREEK Florida Scour Critical — Countermeasures Installed Good 2006 151
FLYING ARROW CANAL Florida Scour Critical — Countermeasures Installed Good 1995 150
SHIRED CREEK Florida Scour Critical — Countermeasures Installed Poor 1960 150
DEER CREEK Florida Scour Critical — Countermeasures Installed Good 1986 150
ZUTES CANAL Florida Scour Critical — Countermeasures Installed Good 1995 148
DEEP BOTTOM CREEK Florida Scour Critical — Countermeasures Installed Good 1990 128
CYPRESS CREEK Florida Scour Critical — Countermeasures Installed Good 1925 125
POWELL CREEK Florida Scour Critical — Countermeasures Installed Fair 1970 105
Crabgrass Creek Florida Scour Critical — Countermeasures Installed Fair 1972 105
BOECKMAN BAYOU Florida Scour Critical — Countermeasures Installed Good 1993 101
CLAY GULLY Florida Scour Critical — Countermeasures Installed Fair 1951 101
BELL SPRING RUN Florida Scour Critical — Countermeasures Installed Fair 1974 101
WEKIVA CREEK Florida Scour Critical — Countermeasures Installed Fair 2000 101
YELLOW WATER CREEK Florida Scour Critical — Countermeasures Installed Fair 1967 101
TROUT CREEK Florida Scour Critical — Countermeasures Installed Fair 1989 101
CANAL C-103 Florida Scour Critical — Countermeasures Installed Fair 1966 101
SPRING RUN CANAL Florida Scour Critical — Countermeasures Installed Fair 1960 100
PAYNE CREEK Florida Scour Critical — Countermeasures Installed Fair 1920 93
FALLING CREEK Florida Scour Critical — Countermeasures Installed Good 1999 91
WARRIOR CREEK Florida Scour Critical — Countermeasures Installed Poor 1975 88
ECONFINA RIVER Florida Scour Critical — Countermeasures Installed Fair 1985 81
TRIB OF ST MARYS RIVER Florida Scour Critical — Countermeasures Installed Fair 1983 71
ROSE CREEK Florida Scour Critical — Countermeasures Installed Fair 1999 71
Blue Cypress Creek Florida Scour Critical — Countermeasures Installed Fair 1978 53
LITTLE RIVER Florida Scour Critical — Countermeasures Installed Poor 1940 51
BRANCH OF SIMMS CREEK Florida Scour Critical — Countermeasures Installed Good 2007 51
DRAINAGE CANAL Florida Scour Critical — Countermeasures Installed Fair 1967 50
Beaver Creek #1 Florida Scour Critical — Countermeasures Installed Fair 2010 50
SALTY CREEK Florida Scour Critical — Countermeasures Installed Fair 1967 41
ALLIGATOR CREEK Florida Scour Critical — Countermeasures Installed Fair 1963 41
STEINHATCHEE RIVER Florida Scour Critical — Countermeasures Installed Fair 1996 41
Unnamed Branch Florida Scour Critical — Countermeasures Installed Fair 2000 39

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.