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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
MUGSER RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1931 521
WILLOW CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1968 520
DELAWARE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 520
WHITE OAK RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1940 520
LITTLE CONESTOGA CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 520
OCTORARO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1941 518
W BR CONOCOCHEAGUE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1907 518
MILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 515
HICKORY RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1949 512
MECK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1929 505
OVER MORRISON RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1966 505
PIG PEN RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1962 502
BRUSH CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1961 501
TRIB TO LEHIGH RIVER Pennsylvania Scour Critical — Countermeasures Installed Fair 1996 500
FALLEN TIMBER RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1951 500
CATASAUQUA CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1950 500
Zacharias Creek Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 500
MCCREARY RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 2009 500
LONG ARM CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1970 500
SACONY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 500
OVER SUGARCREEK TRIB. Pennsylvania Scour Critical — Countermeasures Installed Poor 1924 500
WEST BRANCH SUGAR CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1958 500
CATFISH CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1950 500
ROBBS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1922 500
RACCOON CREEK TRIB Pennsylvania Scour Critical — Countermeasures Installed Poor 1964 500
LICKING CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1970 500
MAHONING CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1971 500
Little Sewickley Creek Pennsylvania Scour Critical — Countermeasures Installed Good 2006 500
Little Sewickley Creek Pennsylvania Scour Critical — Countermeasures Installed Poor 1923 500
LITTLE MAHANTANGO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1973 500
Trib of Zacharias Creek Pennsylvania Scour Critical — Countermeasures Installed Fair 1996 500
OPOSSUM RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 500
DUNLAP CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1963 500
Long Run Pennsylvania Scour Critical — Countermeasures Installed Poor 1990 500
HUNTER RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 2003 500
TURTLE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1932 500
CEDAR SPRING RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1973 500
LITTLE LEHIGH CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1954 500
PIKE RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1887 500
LITTLE CONESTOGA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1873 500
BRUSH RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 500
OWL RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 500
BECK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1973 500
CHARTIERS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1947 500
LOBBS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1938 499
E. BRANCH BIG ELK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1931 499
OVER HOTCH KISS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1951 495
POLECAT RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1973 492
FRENCH CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1915 491
BR OF CANOE CAMP CREEK Pennsylvania Scour Critical — Countermeasures Installed Good 1966 491

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