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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
MCMICHAEL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1932 726
BIG ELK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1938 725
BUFFALO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1908 721
PICKERING CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1879 719
LITTLE SEWICKLEY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1926 718
MILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 716
TRIB DUNNING CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1929 715
CHERRY RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1959 713
TRIB TO CHERRY RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1959 713
FISHING CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1969 710
RILEY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1957 709
TRIB MIDDLE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 703
OVER PLUM CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1939 703
Little Conestoga Creek Pennsylvania Scour Critical — Countermeasures Installed Poor 1940 701
DONEGAL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1950 700
SCHLEGEL RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1927 700
BEAVER DAM RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1957 700
IVES RUN Pennsylvania Scour Critical — Countermeasures Installed Good 1979 700
SUTTON CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1925 700
WEST MONOCACY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1934 700
MILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1973 700
DAVIDSBURG RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1949 700
GIST RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1941 698
IRON MINE RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1934 696
PIGEON CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1943 693
MAHONING CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1942 692
LONG RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1941 691
QUEMAHONING CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1926 690
NORTH FORK KINGS CREEK Pennsylvania Scour Critical — Countermeasures Installed Good 1930 687
MILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 687
CUSHION CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1939 686
CLEAR CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1952 682
MAHONING CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1971 677
STONY CREEK RIVER Pennsylvania Scour Critical — Countermeasures Installed Fair 1984 677
TOMS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1901 675
HONEY BRK.W.BR.BRANDYWIN Pennsylvania Scour Critical — Countermeasures Installed Poor 1910 668
ROCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1940 667
OVER MITCHELL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1937 666
LITTLE CHIQUES CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1964 650
MOSELEM CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1921 649
OVER OIL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1963 648
SOUTH BR. SWATARA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1938 648
HOKENDAUQUA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1935 647
GOOSE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1939 646
BR OF LITTLE CHARTIERS C Pennsylvania Scour Critical — Countermeasures Installed Fair 1943 645
LONG RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1957 643
OVER MILL RUN Pennsylvania Scour Critical — Countermeasures Installed Good 1941 637
DOE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1934 636
S.GLADE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1940 636
KISHACOQUILLAS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 628

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