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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
BRANCH SANDY CREEK Texas Scour Critical — Countermeasures Ineffective Good 2013 108
TENMILE CREEK Montana Scour Critical — Countermeasures Ineffective Good 2023 107
MULBERRY CR Texas Scour Critical — Countermeasures Ineffective Good 2005 106
WETLAND Texas Scour Critical — Countermeasures Ineffective Good 2024 105
WETLAND Texas Scour Critical — Countermeasures Ineffective Good 2024 105
SMALL Iowa Scour Critical — Countermeasures Ineffective Good 2023 104
DRAINAGE DITCH Texas Scour Critical — Countermeasures Ineffective Good 2004 104
STEELE CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1970 103
SQUAW CREEK Wisconsin Scour Critical — Countermeasures Ineffective Fair 2020 103
CLEAR CREEK Texas Scour Critical — Countermeasures Ineffective Good 2024 103
Draw Texas Scour Critical — Countermeasures Ineffective Fair 1954 103
BRUSHY CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1999 102
JENNINGS CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1954 101
DUCK CREEK Texas Scour Critical — Countermeasures Ineffective Fair 2007 100
WHITE ROCK CREEK TRIB Texas Scour Critical — Countermeasures Ineffective Good 2024 100
LAKE CREEK TRIBUTARY 2 Texas Scour Critical — Countermeasures Ineffective Fair 2009 100
LORING BRANCH Texas Scour Critical — Countermeasures Ineffective Fair 1996 100
DRAW Texas Scour Critical — Countermeasures Ineffective Fair 1930 100
DIRTY WOMAN CREEK Montana Scour Critical — Countermeasures Ineffective Fair 1970 100
ROCK CREEK California Scour Critical — Countermeasures Ineffective Good 2017 100
WATER MILL RIVER Massachusetts Scour Critical — Countermeasures Ineffective Fair 1991 100
PEACH CREEK Texas Scour Critical — Countermeasures Ineffective Fair 2015 100
HCFCD DITCH Texas Scour Critical — Countermeasures Ineffective Fair 1988 100
KNOWLTON CREEK Idaho Scour Critical — Countermeasures Ineffective Good 2024 100
BARNETT BR Texas Scour Critical — Countermeasures Ineffective Fair 1951 100
WATER DEER BROOK Massachusetts Scour Critical — Countermeasures Ineffective Good 2000 100
DRAW Texas Scour Critical — Countermeasures Ineffective Good 1986 100
LITTLE CYPRESS CREEK REL Texas Scour Critical — Countermeasures Ineffective Good 2009 100
HALLS BAYOU Texas Scour Critical — Countermeasures Ineffective Good 2010 100
Lake Creek Texas Scour Critical — Countermeasures Ineffective Good 1959 100
SIX MILE CREEK Texas Scour Critical — Countermeasures Ineffective Good 1979 100
DRY CREEK RELIEF Texas Scour Critical — Countermeasures Ineffective Good 2003 100
CREEK Oklahoma Scour Critical — Countermeasures Ineffective Fair 1960 100
TOWNSEND CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1995 100
HCFCD DITCH Texas Scour Critical — Countermeasures Ineffective Good 2005 100
POST OAK CREEK Texas Scour Critical — Countermeasures Ineffective Fair 1991 100
COTTONWOOD CR Texas Scour Critical — Countermeasures Ineffective Good 2008 100
DRAW Texas Scour Critical — Countermeasures Ineffective Good 1965 100
CEDAR CREEK TRIB Texas Scour Critical — Countermeasures Ineffective Fair 2002 100
Plants Creek Texas Scour Critical — Countermeasures Ineffective Good 1951 100
LITTLE CAHABA RIVER Alabama Scour Critical — Countermeasures Ineffective Poor 1904 100
DRAW Texas Scour Critical — Countermeasures Ineffective Fair 1990 100
PECAN BAYOU Texas Scour Critical — Countermeasures Ineffective Fair 1958 100
RUSH CREEK Texas Scour Critical — Countermeasures Ineffective Good 2006 100
LITTLE CYPRESS CREEK Texas Scour Critical — Countermeasures Ineffective Good 2009 100
NORTH MAIN DRAIN Texas Scour Critical — Countermeasures Ineffective Fair 1995 100
DRY CREEK Texas Scour Critical — Countermeasures Ineffective Good 2003 100
North Fork Sunday Creek Montana Scour Critical — Countermeasures Ineffective Good 2024 100
NORTH FORK CEDAR CREEK Texas Scour Critical — Countermeasures Ineffective Fair 2004 100
FOSS CREEK Texas Scour Critical — Countermeasures Ineffective Good 2002 100

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