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Product Safety9,700+ CPSC product recalls Food Safety28,600+ FDA food recalls Pet Safety1.3M FDA animal adverse events Drug Safety17,500+ FDA drug recalls Device Safety38,400+ FDA device recalls Workplace Safety102,900+ OSHA injury reports Brand HistoryRecall lookup by company

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Scour Critical Bridges

23,522 bridges across the US 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 23,522 bridges have been identified as vulnerable to scour damage.

Bridge State Scour Status Condition Year Built ADT
GREENBRIAR CREEK Texas Scour Critical — Countermeasures Ineffective Good 2007 447
WHEAT CREEK Texas Scour Critical — Countermeasures Ineffective Good 1977 445
LITTLE SANDY CREEK REL 1 Texas Scour Critical — Countermeasures Ineffective Fair 1948 443
LITTLE SANDY CREEK REL 2 Texas Scour Critical — Countermeasures Ineffective Good 1948 443
LITTLE SANDY CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1948 443
DRAIN Texas Scour Critical — Countermeasures Ineffective Good 1978 442
JACOBIA CREEK Texas Scour Critical — Countermeasures Ineffective Good 1954 441
RAY CRK Texas Scour Critical — Countermeasures Ineffective Good 1954 441
SOUTH SULPHUR RIVER Texas Scour Critical — Countermeasures Ineffective Good 2017 441
DENTON CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1963 440
DRAW Texas Scour Critical — Countermeasures Ineffective Good 1938 437
DRAW Texas Scour Critical — Countermeasures Ineffective Good 1971 437
DRAW Texas Scour Critical — Countermeasures Ineffective Fair 1938 437
BOGGY CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1949 435
CLENDELING CREEK Texas Scour Critical — Countermeasures Ineffective Good 1958 433
CANEY CRK Texas Scour Critical — Countermeasures Ineffective Good 1967 430
Mtn. Fork River Polk Co. Arkansas Scour Critical — Countermeasures Ineffective Good 1979 430
ROBINSON BAYOU Texas Scour Critical — Countermeasures Ineffective Fair 1985 430
TRIB OF COFFEE CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1971 429
HARRIS CREEK Texas Scour Critical — Countermeasures Ineffective Good 2011 429
DRAW Texas Scour Critical — Countermeasures Ineffective Fair 1951 426
HOLLIDAY CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1940 426
DRAW Texas Scour Critical — Countermeasures Ineffective Fair 1951 426
DRAW Texas Scour Critical — Countermeasures Ineffective Fair 1951 426
PANTHER CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1951 426
PANTHER CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1955 426
NORTH FORK DEER CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1989 425
WAFER CREEK Texas Scour Critical — Countermeasures Ineffective Poor 1940 424
MEDINA RIVER Texas Scour Critical — Countermeasures Ineffective Fair 2001 424
COOKS SLOUGH Texas Scour Critical — Countermeasures Ineffective Good 2005 423
W FORK JERNIGAN CREEK Texas Scour Critical — Countermeasures Ineffective Good 1990 422
BOGGY CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1956 420
HCFCD DITCH Texas Scour Critical — Countermeasures Ineffective Fair 1963 420
DRAW Texas Scour Critical — Countermeasures Ineffective Good 2024 418
Ostrich Creek Washington Scour Critical — Countermeasures Ineffective Good 2022 416
HUNTING BAYOU Texas Scour Critical — Countermeasures Ineffective Fair 1988 402
CANTAU CREEK Texas Scour Critical — Countermeasures Ineffective Good 2016 402
HUNTING BAYOU Texas Scour Critical — Countermeasures Ineffective Good 1988 402
BYRD BRANCH Texas Scour Critical — Countermeasures Ineffective Good 1985 401
WOLF CREEK Texas Scour Critical — Countermeasures Ineffective Good 1985 401
WINDCREST LAKE Texas Scour Critical — Countermeasures Ineffective Poor 2000 400
DRAW Texas Scour Critical — Countermeasures Ineffective Poor 1967 400
DRAW Texas Scour Critical — Countermeasures Ineffective Good 1963 400
HCFCD DITCH 133-00-00 Texas Scour Critical — Countermeasures Ineffective Good 2000 400
HCFCD DITCH Texas Scour Critical — Countermeasures Ineffective Fair 2001 400
TAYLOR GULLY Texas Scour Critical — Countermeasures Ineffective Fair 2002 400
SULFUR BRANCH Texas Scour Critical — Countermeasures Ineffective Fair 2000 400
Seabourne Crk Texas Scour Critical — Countermeasures Ineffective Good 2023 400
TOWN CREEK Texas Scour Critical — Countermeasures Ineffective Fair 2007 400
ARNOLD BRANCH Texas Scour Critical — Countermeasures Ineffective Fair 2003 400

Scour Critical Bridges by State

States ranked by number of scour critical bridges.

StateScour CriticalUnaddressedCountermeasuresIneffective
Texas 3,912 75 516 3,321
Pennsylvania 2,233 45 2,187 1
Louisiana 1,302 13 1,288 1
South Carolina 1,263 0 1,217 46
Oregon 1,231 4 1,221 6
Michigan 1,081 14 1,062 5
Nebraska 962 224 732 6
New York 864 9 780 75
Indiana 756 7 749 0
Wisconsin 751 0 748 3
Kansas 638 9 626 3
California 623 27 562 34
Tennessee 581 12 569 0
Washington 516 14 487 15
Puerto Rico 496 9 487 0
Alabama 450 1 423 26
Iowa 392 3 385 4
New Jersey 362 2 360 0
Florida 357 4 339 14
Oklahoma 317 33 283 1
Missouri 312 4 307 1
Mississippi 301 6 286 9
Connecticut 279 0 276 3
Minnesota 257 38 202 17
Vermont 242 0 240 2
Colorado 241 3 238 0
Idaho 215 18 186 11
South Dakota 207 3 203 1
Arkansas 187 3 129 55
Massachusetts 166 15 106 45
Montana 166 13 140 13
Arizona 164 2 160 2
West Virginia 160 2 98 60
Alaska 159 1 146 12
Maine 140 13 126 1
North Carolina 130 9 105 16
New Mexico 127 4 114 9
North Dakota 102 14 87 1
Utah 100 6 82 12
Georgia 99 1 81 17
Illinois 99 3 85 11
Nevada 94 0 85 9
Rhode Island 94 0 93 1
New Hampshire 86 2 78 6
Hawaii 83 0 82 1
Kentucky 56 16 39 1
Maryland 54 1 51 2
Wyoming 51 1 48 2
Delaware 39 0 39 0
Ohio 12 2 4 6
Virginia 8 0 8 0
District of Columbia 5 0 4 1

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