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Scour Critical Bridges in Pennsylvania

2,233 bridges in Pennsylvania 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 2,233 bridges in Pennsylvania have been identified as vulnerable to scour damage.

Clear
Bridge State Scour Status Condition Year Built ADT
MCCABE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 175
COFFEE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1968 174
BRANCH OF SUGAR CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1974 173
TRIB N BR BERMUDIAN CRK Pennsylvania Scour Critical — Countermeasures Installed Fair 1967 173
DUNNINGS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1948 172
MUDDY RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1918 170
CLARKE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1933 170
BLACKLICK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1977 170
TRIBUTARY OF BRUSH CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1957 167
BRANCH BEAVER RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1949 166
OVER W BR OF ELK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 166
BRANCH OF JOHNSON CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1937 164
JOHNSONS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1947 164
TRIBUTARY SATTERLEE CRK Pennsylvania Scour Critical — Countermeasures Installed Fair 1941 163
SPRING CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1964 161
BELLTOWN RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1941 161
Sugar Run Pennsylvania Scour Critical — Countermeasures Installed Poor 1972 160
CODORUS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1959 158
Butchery Run Pennsylvania Scour Critical — Countermeasures Installed Poor 1958 157
PARADISE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1956 157
LAMB LICK RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1941 155
TRIB TO STEWART RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1921 155
BOYDS HOLLOW RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1936 152
Magargee Run Pennsylvania Scour Critical — Countermeasures Installed Poor 1975 152
RUPP RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1933 151
OVER CONNEAUT CREEK BR Pennsylvania Scour Critical — Countermeasures Installed Fair 1936 151
OVER MILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1952 151
ELK LICK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1941 150
Washington Run Pennsylvania Scour Critical — Countermeasures Installed Fair 1935 150
FALLS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1987 150
TOHICKON CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1876 150
SWAMP CREEK(UNAMI) Pennsylvania Scour Critical — Countermeasures Installed Poor 1910 150
SLIPPERY ROCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1980 150
RAVEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1928 150
PIGEON CREEK trib Pennsylvania Scour Critical — Countermeasures Installed Fair 1903 150
FOUR MILE RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 150
CHAMPION CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 150
BACK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 150
BEAVER RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1943 150
LIZARD CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 150
GLOBE RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1972 150
DEEP CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1922 150
Nancy Run Pennsylvania Scour Critical — Countermeasures Installed Fair 2000 150
OUGHOUGHTON CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1937 150
HOKENDAUQUA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1911 150
JACOBY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1984 150
ALLEGHENY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1946 150
LITTLE MARTINS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1965 150
FOUR MILE RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1950 150
OVER MUDDY RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1949 150

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