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
SCHUYLKILL RIVER Pennsylvania Scour Critical — Countermeasures Installed Poor 1925 135
WILDCAT RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1975 134
EAST FORK WILDCAT RUN Pennsylvania Scour Critical — Countermeasures Installed Good 1975 134
HOFFMAN RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1990 134
HORTON CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1940 134
COXES CREEK Pennsylvania Scour Critical — Countermeasures Installed Good 1973 134
MCKEES RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1940 133
NORTH FORK PINE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1938 133
RED RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1937 133
STONEY RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1924 132
LITTLE NESCOPECK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1957 130
DYBERRY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1984 129
HOFFER CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1958 127
JACOBS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1910 127
TOMS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1940 126
TWELVEMILE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1960 125
ELK RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1974 125
TWO MILE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1903 123
CLEAR CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1965 122
E BR SIDELING HILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1929 121
OVER COLD RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1945 121
OVER PINE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1955 121
HULING RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1952 120
SHOBERS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1953 120
KEGG RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1910 120
TRIBUTARY TO MUD RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1921 120
LITTLE MESHOPPEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1927 120
BLACKLEGS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1979 120
OVER BLACKS CR. Pennsylvania Scour Critical — Countermeasures Installed Fair 1932 119
BIG SEWICKLEY CREEK EB Pennsylvania Scour Critical — Countermeasures Installed Fair 1891 118
OVER HAZELTINE HOLLW RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1959 118
SHERMANS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1910 117
SACONY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1869 113
FURNACE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1908 112
MILL RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1940 112
THOMAS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1953 112
TRIB TO FRENCH CK Pennsylvania Scour Critical — Countermeasures Installed Good 1950 110
TRIB. PAXTON CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1960 110
ELK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1918 109
NORTH FORK BENS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1927 109
NORTH BRANCH TOWANDA CRK Pennsylvania Scour Critical — Countermeasures Installed Poor 1967 108
SLACKS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1940 108
PLEASANT STREAM Pennsylvania Scour Critical — Countermeasures Installed Poor 1950 108
WHITE DEER HOLE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1935 108
WHITE DEER HOLE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1954 108
E. BR. CHILLISQUAQUE CK. Pennsylvania Scour Critical — Countermeasures Installed Good 1909 108
MIDDLE BR CHILLISQUAQ CR Pennsylvania Scour Critical — Countermeasures Installed Fair 1923 108
CUSSEWAGO CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1970 106
POHOPOCO CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1971 106
STONY FORK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 105

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.