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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
BUFFALO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1984 300
T586 OVER BEAVER CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1973 300
ALLEGHENY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 300
NEW CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1976 300
POQUESSING CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 300
PENNSYLVANIA CANAL Pennsylvania Scour Critical — Countermeasures Installed Fair 1973 300
MAHANOY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 300
TRIBUTARY NESHAMINY CRK Pennsylvania Scour Critical — Countermeasures Installed Fair 1984 300
DAVIS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1952 300
PIGEON CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 300
Fishing Creek Pennsylvania Scour Critical — Countermeasures Installed Fair 1985 300
Walnut Run Pennsylvania Scour Critical — Countermeasures Installed Fair 2010 300
BENNETT BR SINNEMAHONING Pennsylvania Scour Critical — Countermeasures Installed Fair 1920 300
WEST BRANCH RAUSCH CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1973 300
GRASSY RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1949 300
PINE RUN STREAM Pennsylvania Scour Critical — Countermeasures Installed Poor 1980 300
LITTLE BUSHKILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1931 300
MINGO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1881 300
OVER SIX MILE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1971 300
LITTLE SWATARA CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1933 300
COPLAY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 300
SWATARA CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1939 300
Perkins Run Pennsylvania Scour Critical — Countermeasures Installed Fair 1914 300
TRIB TO BUFFALO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1936 299
CO LI BR CHILLISQUAQUE C Pennsylvania Scour Critical — Countermeasures Installed Fair 1957 299
TRB TO BR CHILLISQUAQ CR Pennsylvania Scour Critical — Countermeasures Installed Fair 1957 299
OVER WOLF CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1952 297
BUFFALO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1941 296
E BR TUNKHANNOCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1934 294
TULPEHOCKEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1925 292
OVER ROARING CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1956 291
EAST BR BRANDYWINE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1888 290
WHITETHORN RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1915 287
OVER PINEY RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1925 284
LOST RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1948 283
BR.BECKETS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1926 282
OVER CONNEAUT CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1965 281
TULPEHOCKEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1902 280
NESCOPECK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 280
NEWELL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1982 280
LICK RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1954 279
LITTLE NORTHKILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1952 278
MAHANOY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1924 278
BIG RUN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1954 278
LAKE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1922 278
KISTLER CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 277
BEAVER DAM CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1940 276
SCRUBGRASS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1928 276
BUCKLEY HOLLOW RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1929 274
MAHANTANGO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1946 274

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