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
CANOE CAMP CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1954 491
NAYLORS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1946 490
HUBER RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 490
JOHNSON POND CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1934 489
OVER COLD SPRING CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1962 486
OVER DECKARDS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 484
OVER BIG RUN TRIB Pennsylvania Scour Critical — Countermeasures Installed Fair 1914 483
RIDGE VALLEY CRK Pennsylvania Scour Critical — Countermeasures Installed Poor 1928 482
BRANCH MIDDLE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 480
MUDLICK RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1934 478
SOUTH BRANCH PLUM CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1953 478
WEST BRANCH COXES CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1945 477
HIGGINS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1908 477
PERKIOMEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1962 477
W.BRANCH PERKIOMEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1927 476
OVER QUENSHUKENY RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1962 476
E BR WOLF CREEK TRIB. Pennsylvania Scour Critical — Countermeasures Installed Poor 1939 472
MILE BROOK Pennsylvania Scour Critical — Countermeasures Installed Poor 1938 471
OVER WHITE DEER CREEK Pennsylvania Scour Critical — Countermeasures Installed Good 1958 470
OVER LITTLE BUFFALO CRK. Pennsylvania Scour Critical — Countermeasures Installed Fair 1936 470
TRIB. MAHANTANGO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 469
Inlet to Lake Quinn Pennsylvania Scour Critical — Countermeasures Installed Poor 1937 468
HALF MOON CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1908 467
OCTORARO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1880 466
PERKIOMEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1898 464
TROUT RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1924 461
DRY RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1948 460
KERN RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1922 460
COOPERS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1952 457
LATIMORE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 454
FRTOWN.BR.JUNIATA RIVER Pennsylvania Scour Critical — Countermeasures Installed Poor 1954 451
OVER OIL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1892 451
OVER LOGAN RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1935 451
WICONISCO CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1987 450
HEMLOCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1946 450
OVER MC GUIRE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1950 450
WEST SKIPPACK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1928 450
SAND HILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1934 450
MARSH RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1961 450
OVER WATSON RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1963 448
OVER WATSON RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1963 448
OVER SILL RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1910 447
SOUTH BRANCH PLUM CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1952 447
OVER CONNEAUT CREEK E BR Pennsylvania Scour Critical — Countermeasures Installed Fair 1940 445
LITTLE BEAVER CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1938 444
W BR.CHILLISQUAQUE CREEK Pennsylvania Scour Critical — Countermeasures Installed Good 1943 441
BIG PUCKETA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1916 440
WOLF CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1944 438
BLACKLEGS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1937 438
BIRCH RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1923 432

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.