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Scour Critical Bridges in Missouri

312 bridges in Missouri 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 312 bridges in Missouri have been identified as vulnerable to scour damage.

Clear
Bridge State Scour Status Condition Year Built ADT
LAKE CR Missouri Scour Critical — Countermeasures Installed Good 1989 238
N FK CROOKED CR Missouri Scour Critical — Countermeasures Installed Poor 1932 227
NEW HOPE CR Missouri Scour Critical — Countermeasures Installed Poor 1955 216
BRUSH CR Missouri Scour Critical — Countermeasures Installed Fair 1960 213
MUD CR Missouri Scour Critical — Countermeasures Installed Fair 1933 198
W FK LOCUST CR Missouri Scour Critical — Countermeasures Installed Fair 1969 196
WAKENDA CR Missouri Scour Critical — Countermeasures Installed Fair 1978 185
BEAR CR Missouri Scour Critical — Countermeasures Installed Fair 1965 183
JONES BR Missouri Scour Critical — Countermeasures Installed Poor 1956 180
INDIAN CR Missouri Scour Critical — Countermeasures Installed Fair 2002 180
SPILLWAY DTCH Missouri Scour Critical — Countermeasures Installed Fair 1969 167
BR OF WELDON FK CR Missouri Scour Critical — Countermeasures Installed Fair 1961 166
SANDY CR Missouri Scour Critical — Countermeasures Installed Fair 1958 163
LONG BR CR Missouri Scour Critical — Countermeasures Installed Fair 1947 154
CROOKED CR Missouri Scour Critical — Countermeasures Installed Fair 1961 153
BIG PINEY RIVER Missouri Scour Critical — Countermeasures Installed Fair 1957 150
MEDICINE CR Missouri Scour Critical — Countermeasures Installed Fair 1967 147
FORK PINE CR Missouri Scour Critical — Countermeasures Installed Poor 1900 142
RED OAK CR Missouri Scour Critical — Countermeasures Installed Fair 1983 121
TRIB OF BIG CR Missouri Scour Critical — Countermeasures Installed Poor 1989 110
TURKEY CR Missouri Scour Critical — Countermeasures Installed Fair 1963 106
N BLACKBIRD CR Missouri Scour Critical — Countermeasures Installed Fair 1955 104
SPRING CR Missouri Scour Critical — Countermeasures Installed Fair 1953 102
JENKINS CR Missouri Scour Critical — Countermeasures Installed Poor 1992 100
TRIB OF JENKINS CR Missouri Scour Critical — Countermeasures Installed Poor 1930 100
CREEK Missouri Scour Critical — Countermeasures Installed Poor 1950 100
BAILEYS CR Missouri Scour Critical — Countermeasures Installed Poor 1938 98
CLEAR CR Missouri Scour Critical — Countermeasures Installed Fair 1949 97
OTTER CR Missouri Scour Critical — Countermeasures Installed Good 1960 92
LONG BR Missouri Scour Critical — Countermeasures Installed Fair 1956 89
PLATTE RVR Missouri Scour Critical — Countermeasures Installed Poor 1962 89
HEMPHILL BR Missouri Scour Critical — Countermeasures Installed Poor 1933 60
RATFORD BR Missouri Scour Critical — Countermeasures Installed Poor 1978 50
SLAUGHTER BR Missouri Scour Critical — Countermeasures Installed Poor 1973 50
W FK OF GRAND RVR Missouri Scour Critical — Countermeasures Installed Poor 1910 50
GIVINS BR Missouri Scour Critical — Countermeasures Installed Poor 1900 50
E FK BIG CR Missouri Scour Critical — Countermeasures Installed Poor 1910 50
BR OF MASSEY CR Missouri Scour Critical — Countermeasures Installed Poor 1940 50
TRIB OF ROARK CR Missouri Scour Critical — Countermeasures Installed Poor 1996 50
MOUND CR Missouri Scour Critical — Countermeasures Installed Poor 1960 50
TAUM SAUK CR Missouri Scour Critical — Countermeasures Installed Poor 2003 50
DRY HOLLOW Missouri Scour Critical — Countermeasures Installed Poor 1980 50
WALNUT CR Missouri Scour Critical — Countermeasures Installed Poor 1900 45
BR OF CROOKED CR Missouri Scour Critical — Countermeasures Installed Poor 1955 45
TRIB TO ROUBIDOUX CRK Missouri Scour Critical — Countermeasures Installed Fair 2009 40
NELSON CR Missouri Scour Critical — Countermeasures Installed Poor 1978 40
LIT PINEY CR Missouri Scour Critical — Countermeasures Installed Poor 1900 40
SLOUGH CR Missouri Scour Critical — Countermeasures Installed Fair 1958 40
DRAIN DTCH Missouri Scour Critical — Countermeasures Installed Poor 1975 40
E FK POST OAK CR Missouri Scour Critical — Countermeasures Installed Poor 1900 40

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