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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 PAINT CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1947 2,617
FRANKS. BR.JUNIATA RIVER Pennsylvania Scour Critical — Countermeasures Installed Fair 1937 2,615
CLIMBERS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1982 2,614
RIDLEY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1960 2,611
STONY RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 2,604
TRIB S BR PLUM CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1959 2,596
BEAVER RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 2,589
CABIN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1931 2,577
OVER CUSSEWAGO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1955 2,568
LITTLE SWATARA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1928 2,553
OVER CROOKED CREEK TRIB Pennsylvania Scour Critical — Countermeasures Installed Fair 1921 2,552
MUDDY RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1932 2,551
COWANSHANNOCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1962 2,549
ANTIETAM CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1938 2,512
DEEP CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1955 2,501
SYCAMORE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 2,500
MILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1965 2,500
MARSH RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1961 2,500
CROWS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 2,487
BULL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1982 2,478
KISHACOQUILLAS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1969 2,467
OFFICERS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1916 2,465
MORRIS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1872 2,464
TRIB. TO SAUCON CREEK Pennsylvania Scour Critical — Countermeasures Installed Good 1962 2,445
OVER BLACKS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1941 2,432
TRIB TO DELAWARE RIVER Pennsylvania Scour Critical — Countermeasures Installed Poor 1925 2,425
MILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1937 2,386
TINICUM CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1932 2,382
DOE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1928 2,357
MUD RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1961 2,356
NYCE LAKE Pennsylvania Scour Critical — Countermeasures Installed Fair 1961 2,351
MARTINS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1945 2,347
CRUM CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1922 2,338
HUNGRY RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1912 2,329
STONEY RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1921 2,314
SILVER CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1960 2,300
TRIB.TO DELEWARE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1958 2,296
OVER DELAWARE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1959 2,296
OVER COLES CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1951 2,286
MILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1932 2,284
PICKERING CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1935 2,283
W. BR. BRANDYWINE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1953 2,249
PAUNNACUSSING CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1854 2,246
LIZARD CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1958 2,242
TRIB.TO WILLOW CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1934 2,237
W. BR. BRANDYWINE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1923 2,237
RIFE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1966 2,233
BEAVERDAM RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1959 2,224
WEST FALLS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1957 2,216
TRIB.TO MONOCACY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1924 2,206

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