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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
RALSTON RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1933 212
OVER MUD CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1962 211
FISHING CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1984 210
LITTLE MESHOPPEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 209
OYSTERVILLE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1940 207
BRANCH HUNLOCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1949 206
BRANCH KITCHEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1985 206
BEAR ROCK RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1938 205
CONOWINGO CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1974 205
SPENCER RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1946 204
BUTTERMILK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1958 204
BRANCH OF FOURMILE RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1924 204
BROADHEAD RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1902 204
BROADHEAD RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1937 204
Green Lick Run Pennsylvania Scour Critical — Countermeasures Installed Fair 1980 200
WILLOUGHBY RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1966 200
BRANCH OF BEAVER CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1925 200
PINEY FORK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1940 200
PEQUEA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 2007 200
LITTLE NORTHKILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1954 200
SHALTER AVENUE FLOODWAY Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 200
PENNSYLVANIA CANAL Pennsylvania Scour Critical — Countermeasures Installed Good 1875 200
POQUESSING CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1853 200
THREEMILE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 200
RAPP CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1917 200
HUBER RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 2005 200
TRIB TO THORN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1957 200
ANDERSON RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1936 200
HINCKSTON RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1978 200
NORTH RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1947 200
REISINGER RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1955 200
PLUM RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1969 200
LICK RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1927 200
TRIB. TO PINE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1970 200
CONEWAGO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1985 200
MOHAN RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1974 200
TUB RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1966 200
COAL LICK RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1913 200
Latta Run Pennsylvania Scour Critical — Countermeasures Installed Fair 1935 200
DIXON RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1970 200
LITTLE BUFFALO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1920 200
BEAR CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1961 200
MINGO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1949 200
GREGS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1970 200
IRISH HOLLOW CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1910 200
TREASTER RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1915 200
OTTER CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1975 200
LITTLE MARTINS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1957 200
LITTLE MARTINS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1917 200
LITTLE MARTINS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1969 200

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