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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
TACONY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1959 7,668
PLUM CREEK UPPER BRANCH Pennsylvania Scour Critical — Countermeasures Installed Poor 1982 7,662
HARVEYS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 7,630
PIKES CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 7,630
LACKAWAXEN RIVER Pennsylvania Scour Critical — Countermeasures Installed Fair 1943 7,579
BRANCH PICKERING CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1938 7,540
ITHAN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1922 7,516
WOLF RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1938 7,498
TRIB. TO KERSHNERS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 7,473
DARBY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1905 7,453
BLACK DITCH CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1953 7,372
OVER SIXTEEN MILE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1941 7,330
OPPOSSUM RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1947 7,326
OVER MAHONING CREEK Pennsylvania Scour Critical — Countermeasures Installed Good 1963 7,321
NORFOLK SO. RR. Pennsylvania Scour Critical — Countermeasures Installed Fair 1926 7,316
MIDDLE BR WHITE CLAY CR Pennsylvania Scour Critical — Countermeasures Installed Fair 1934 7,252
PENNSYLVANIA CANAL Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 7,243
ROCK RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1955 7,226
Otter Creek Pennsylvania Scour Critical — Countermeasures Installed Poor 1920 7,200
BLACK RIVER Pennsylvania Scour Critical — Countermeasures Installed Fair 1938 7,182
TRIB TO GLADE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1961 7,106
CROUSE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1963 7,087
SACONY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1911 7,077
PIDCOCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 7,075
MARTINS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1911 7,047
Slate Run Creek Pennsylvania Scour Critical — Countermeasures Installed Fair 1978 7,037
LITTLE BUSHKILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1929 7,017
TROUT CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1965 7,000
CAT TAIL RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1956 6,999
BROAD RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1959 6,997
TRIB. SAUCON CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1953 6,993
SAUCON CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1927 6,993
BUCK CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1931 6,954
TRIB LACKAWAXEN RIVER Pennsylvania Scour Critical — Countermeasures Installed Fair 1954 6,936
BUCK RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1914 6,935
GAP RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1918 6,934
BLACK RIVER Pennsylvania Scour Critical — Countermeasures Installed Fair 1959 6,899
TOOKANY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1899 6,890
RED RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1947 6,862
SIX MILE RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1924 6,838
YELLOW BREECHES CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1932 6,826
Cobbs Creek Pennsylvania Scour Critical — Countermeasures Installed Poor 1932 6,800
SAW MILL RUN 3255K10 Pennsylvania Scour Critical — Countermeasures Installed Fair 1967 6,770
BROCK CREEK / 3151-E2 Pennsylvania Scour Critical — Countermeasures Installed Fair 1961 6,721
MARCUS HOOK CREEK/3806A7 Pennsylvania Scour Critical — Countermeasures Installed Poor 1928 6,717
CHARTIERS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1934 6,711
BR.OF EAST BR.WHITE CLAY Pennsylvania Scour Critical — Countermeasures Installed Poor 1937 6,672
OVER EIGHT MILE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1930 6,635
MILL CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1936 6,605
PANTHER CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1902 6,528

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