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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
FLAUGHERTY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1963 36
MILLER RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1963 36
DEER CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 35
BIG BROOK Pennsylvania Scour Critical — Countermeasures Installed Poor 1970 35
QUEMAHONING CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1914 34
TULPEHOCKEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1900 33
WEST BRANCH SHINGLE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 33
OVER DAWSON RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1952 32
OVER WEST HICKORY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1964 32
Little Shenango Branch Pennsylvania Scour Critical — Countermeasures Installed Poor 1934 32
TR. S FK LITTLE CONE. RI Pennsylvania Scour Critical — Countermeasures Installed Fair 1977 31
Pine Run Pennsylvania Scour Critical — Countermeasures Installed Poor 1961 31
KASSON BROOK Pennsylvania Scour Critical — Countermeasures Installed Fair 1953 31
SAW MILL RUN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1909 30
HEATH RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 30
POPLAR RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1950 30
HARGUS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1966 30
TRIB TO MESHOPPEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1964 30
LITTLE SHANNON RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 30
SO BR TUNKHANNOCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1895 30
ROARING BROOK Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 30
SPRING BROOK Pennsylvania Scour Critical — Countermeasures Installed Poor 1956 30
MARVIN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1938 30
HOKENDAUQUA CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1910 30
GENESEE FORK PINE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1940 30
CATAWISSA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1929 30
LICK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 30
LITTLE LOYALSOCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1901 30
CROSS CREEK TRIB Pennsylvania Scour Critical — Countermeasures Installed Poor 1913 30
SUGAR CAMP RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1911 30
Wheeling Creek Trib Pennsylvania Scour Critical — Countermeasures Installed Poor 1887 30
KINNEYVILLE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1957 30
LITTLE EQUINUNK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1970 30
JOHNSON CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1974 30
Chestnut Run Pennsylvania Scour Critical — Countermeasures Installed Poor 1897 28
CHERRY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1940 27
DUNNING CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1965 26
SKIPPACK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1908 26
SIX MILE RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 25
COVE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1900 25
Thoms Run Pennsylvania Scour Critical — Countermeasures Installed Poor 1990 25
MCKINNON BRANCH Pennsylvania Scour Critical — Countermeasures Installed Poor 1940 25
NORTH BR BROWNS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1929 25
HEN RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1910 25
SOUTH FORK TENMILE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1885 25
SOUTH FORK TENMILE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1979 25
SCHWABEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1897 25
WHITES CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1916 25
CHERRY RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1915 25
WEST BR LACKAWAXEN RIVER Pennsylvania Scour Critical — Countermeasures Installed Poor 1905 25

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