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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

Infrastructure

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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
GUYANDOTTE RIVER West Virginia Scour Critical — Countermeasures Ineffective Fair 2000 800
LILLYS CREEK Texas Scour Critical — Countermeasures Ineffective Good 1931 799
DRAW Texas Scour Critical — Countermeasures Ineffective Fair 1968 794
DRAW Texas Scour Critical — Countermeasures Ineffective Fair 1931 794
DRAW Texas Scour Critical — Countermeasures Ineffective Good 1968 794
DRAW Texas Scour Critical — Countermeasures Ineffective Good 1998 794
DRAW Texas Scour Critical — Countermeasures Ineffective Good 1968 794
DRAINAGE DITCH Texas Scour Critical — Countermeasures Ineffective Good 1990 793
LITTLE POST OAK CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1966 788
BOUQUET RIVER New York Scour Critical — Countermeasures Ineffective Good 2024 788
LANDERS CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1926 787
COTTONWOOD CREEK Texas Scour Critical — Countermeasures Ineffective Good 1999 781
FARMERS CREEK Texas Scour Critical — Countermeasures Ineffective Good 1991 774
BIG PINE CREEK BRANCH Texas Scour Critical — Countermeasures Ineffective Good 2001 768
BIG PINE CREEK BRANCH Texas Scour Critical — Countermeasures Ineffective Fair 2000 768
DRAINAGE DITCH Texas Scour Critical — Countermeasures Ineffective Good 1993 762
DRAW Texas Scour Critical — Countermeasures Ineffective Good 1993 762
DRAW Texas Scour Critical — Countermeasures Ineffective Good 1993 762
DRAW Texas Scour Critical — Countermeasures Ineffective Good 1993 762
WILDHORSE BRANCH # 1 Texas Scour Critical — Countermeasures Ineffective Fair 1925 761
HCFCD DITCH Texas Scour Critical — Countermeasures Ineffective Fair 1960 760
DRAW Texas Scour Critical — Countermeasures Ineffective Good 1976 758
DRAW Texas Scour Critical — Countermeasures Ineffective Good 1976 758
PENNYS CREEK Texas Scour Critical — Countermeasures Ineffective Good 1954 755
BRADEN BRANCH TRIBUTARY Texas Scour Critical — Countermeasures Ineffective Fair 1962 755
CASE CREEK Texas Scour Critical — Countermeasures Ineffective Good 1956 754
Holiday Creek Texas Scour Critical — Countermeasures Ineffective Good 2024 753
DRAW Texas Scour Critical — Countermeasures Ineffective Fair 1929 752
DRAW Texas Scour Critical — Countermeasures Ineffective Fair 1929 752
LITTLE ONION CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1929 752
DOGWOOD CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1929 752
ONION CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1929 752
COTTONWOOD CRK Texas Scour Critical — Countermeasures Ineffective Fair 1954 750
CHIMNEY ROCK DITCH Texas Scour Critical — Countermeasures Ineffective Fair 1969 750
SPRING CREEK FLOOD PLAIN Texas Scour Critical — Countermeasures Ineffective Good 2016 750
HL&P COOLING WATER CANAL Texas Scour Critical — Countermeasures Ineffective Fair 2005 750
DRAW Texas Scour Critical — Countermeasures Ineffective Good 2008 750
CLEVELAND BRANCH Texas Scour Critical — Countermeasures Ineffective Fair 1958 750
POOTATUCK RIVER Connecticut Scour Critical — Countermeasures Ineffective Good 2023 750
FLY CREEK New York Scour Critical — Countermeasures Ineffective Good 2024 749
Drainage Ditch Texas Scour Critical — Countermeasures Ineffective Good 1930 745
BERRY CREEK Texas Scour Critical — Countermeasures Ineffective Good 1996 741
NEWTON CREEK Texas Scour Critical — Countermeasures Ineffective Fair 2008 741
S. White Oak Creek Arkansas Scour Critical — Countermeasures Ineffective Fair 1963 740
HALLS BAYOU Texas Scour Critical — Countermeasures Ineffective Good 2012 740
HONDO CREEK Texas Scour Critical — Countermeasures Ineffective Good 2013 739
CEDAR CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1969 732
DELAWARE CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1940 732
RUSH CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1955 732
RAYMONDVILLE DRAIN Texas Scour Critical — Countermeasures Ineffective Good 2013 729

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