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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
North Branch Calkins Crk Pennsylvania Scour Critical — Countermeasures Installed Good 2007 55
OVER PADEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1935 53
BEAVER DAM RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1920 52
ENGLISH RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 52
MOSQUITO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 51
UNAMI CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1919 51
LAUREL RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1927 51
ROARING FORK Pennsylvania Scour Critical — Countermeasures Installed Poor 1950 51
STREETS RUN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1951 50
KREUTZ CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1940 50
WILLS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1920 50
CLEAR CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1928 50
STONY RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1959 50
NESHAMINY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1888 50
CUTTALOSSA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1932 50
TINICUM CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1900 50
BEAR CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 50
LITTLE TOBY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1916 50
CROOKED RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1962 50
BRANCH OF SHARP RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 50
WHITELOCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1945 50
REEDS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 50
TUBMILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1960 50
PORTERS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1914 50
UPPER SWATARA CR Pennsylvania Scour Critical — Countermeasures Installed Poor 1961 50
MOYERS MILL RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 50
TRIB.OF MIDDLE CR Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 50
FALLS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 50
SILVER CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 2004 50
ROARING RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1916 50
WILLS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1925 50
STONYCREEK RIVER Pennsylvania Scour Critical — Countermeasures Installed Poor 1900 50
TRIBUTARY OF MILLERS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1935 50
N. BR. MEHOOPANY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1925 50
PORTER CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 50
RILEY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1990 50
SNAKE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1920 50
MARTINS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 50
LESLIE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1958 50
STARRUCCA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1979 50
E. BR. LACKAWANNA RIVER Pennsylvania Scour Critical — Countermeasures Installed Poor 1900 50
GAYLORD CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1903 50
MIDDLE BR. WYALUSING CR. Pennsylvania Scour Critical — Countermeasures Installed Fair 1887 50
NORTH RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1982 50
LITTLE SANDY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1895 50
OVER PINE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1907 50
TRIB AUNT CLARA FORK Pennsylvania Scour Critical — Countermeasures Installed Fair 1960 50
COPLAY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1998 50
VAN AUKEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 50
N BRANCH CALKINS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1895 50

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