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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
LITTLE SCHUYLKILL RIVER Pennsylvania Scour Critical — Countermeasures Installed Fair 1953 431
MAIDEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1932 430
CODORUS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1928 430
COCOLAMUS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1938 429
LATIMORE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1922 427
MCMICHAEL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1986 427
BRANCH JOHNSON CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1959 427
OVER MILLERS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1929 423
OVER STONY FORK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1953 421
FIDDLE LAKE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1959 421
S. BRANCH OF MAPLE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1928 420
LITTLE CHIQUES CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1968 420
STEWART CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1936 419
OVER CONNEAUT CREEK W BR Pennsylvania Scour Critical — Countermeasures Installed Fair 1952 417
TACONY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1958 415
WEST BR. RED CLAY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1963 415
TRIB. TO PENNS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1954 415
CHIQUES CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1925 415
CHIQUES CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1989 415
CABALA RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1928 414
ALPHA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1934 411
ELDERS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1934 411
EVITTS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1937 410
TR.EVITTS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1967 410
CHIQUES CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 410
DEEP CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1932 410
TRIB.TO SAUCON CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1977 410
SINNEMAHONING CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1938 408
PINE CREEK NORTH BRANCH Pennsylvania Scour Critical — Countermeasures Installed Fair 1935 406
PIGEON CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1804 406
MAHONING CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1929 403
TOMS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1937 402
OVER CONNEAUT CREEK W BR Pennsylvania Scour Critical — Countermeasures Installed Fair 1961 402
NORTH BR. NESHAMANY CRK. Pennsylvania Scour Critical — Countermeasures Installed Fair 1922 400
BRANCH OF NESHAMINY CRK Pennsylvania Scour Critical — Countermeasures Installed Fair 1921 400
MONOCACY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1911 400
LILLIBRIDGE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1957 400
HAGERMANS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1928 400
LITTLE MAHANTANGO CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 2009 400
S BR CODORUS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1909 400
TRIB N BR BERMUDIAN CRK Pennsylvania Scour Critical — Countermeasures Installed Fair 1973 400
NANCY RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1958 400
DUNBAR CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1977 400
E BR LITTLE ANTIETAM CRE Pennsylvania Scour Critical — Countermeasures Installed Fair 1964 400
Green Lick Run Pennsylvania Scour Critical — Countermeasures Installed Fair 1972 400
HAYMAKER RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1960 400
TRIB TO PIGEON CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1960 400
TOAD CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1966 400
LITTLE LEHIGH CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1960 400
SOUTH BR. SAUCON CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1973 400

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