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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
WHITES CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1916 25
CHERRY RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1915 25
WEST BR LACKAWAXEN RIVER Pennsylvania Scour Critical — Countermeasures Installed Poor 1905 25
WEST BR LACKAWAXEN RIVER Pennsylvania Scour Critical — Countermeasures Installed Fair 1928 25
Rasler Run Pennsylvania Scour Critical — Countermeasures Installed Fair 1980 25
Short Creek Pennsylvania Scour Critical — Countermeasures Installed Poor 1960 25
Thoms Run Pennsylvania Scour Critical — Countermeasures Installed Poor 1990 25
SPRUCE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 23
Morrison Run Pennsylvania Scour Critical — Countermeasures Installed Fair 1962 22
CEDAR RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1895 22
OVER CEDAR RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1900 21
MARY ANN CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1940 20
STERLING RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 20
TONOLOWAY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1911 20
SOUTH FORK TENMILE CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1919 20
WHITELEY CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1900 20
JAMISON RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 2004 20
WAPWALLOPEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1900 20
TUNKHANNOCK CK Pennsylvania Scour Critical — Countermeasures Installed Poor 1900 20
TRIBUTARY MIDDLE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 20
BIG NELSON RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1935 20
MAHANOY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1955 20
LITTLE CATAWISSA CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1973 20
MAHANOY CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1910 20
N.BR.QUEMAHONING CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1919 20
CROSS CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1887 20
ROBINSON FORK Pennsylvania Scour Critical — Countermeasures Installed Poor 1887 20
TENMILE CREEK TRIB Pennsylvania Scour Critical — Countermeasures Installed Poor 1942 20
HOLLISTER CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1950 20
WHITEHORN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1924 20
Smith Creek Pennsylvania Scour Critical — Countermeasures Installed Poor 1964 20
TENMILE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1915 20
BEAR CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1960 20
ANGELICA CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1930 20
WEST BR LACKAWAXEN RIVER Pennsylvania Scour Critical — Countermeasures Installed Fair 2010 20
HOTTENBAUGH RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 2012 20
PETERS CREEK Pennsylvania Scour Critical — Countermeasures Installed Fair 1920 17
LITTLE JUNIATA RIVER Pennsylvania Scour Critical — Countermeasures Installed Poor 1937 17
ADAMS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1982 16
WILSON RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1964 15
CURRY RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1905 15
HAMMERSLEY FORK Pennsylvania Scour Critical — Countermeasures Installed Fair 1933 15
BEAVER RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1912 15
LITTLE KETTLE CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1938 15
HINCKSTON RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1938 15
E.BR. CONNEAUT CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1935 15
BRANCH OF RUDOLPH RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1920 14
SHAFFERS RUN Pennsylvania Scour Critical — Countermeasures Installed Poor 1937 12
SHAFFERS RUN Pennsylvania Scour Critical — Countermeasures Installed Fair 1982 12
TULPEHOCKEN CREEK Pennsylvania Scour Critical — Countermeasures Installed Poor 1889 11

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