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
Poquessing Creek	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1853	100
PATTERSON CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1914	100
ROBERTS RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1926	100
ROBERTS RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1910	100
MIDDLE BR. SUGAR CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1880	100
CARLEY BROOK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1956	100
Beham Run	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1901	100
Hinckston Run	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1930	100
YELLOW CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1978	100
BEAVER RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1920	100
L BEAVER CRK NORTH FORK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1930	100
PERKIOMEN CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1928	100
HAMMER CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1925	100
HAMMER CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1920	100
HAASEN CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1977	100
TROUT CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1913	100
Princess Run	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1936	100
QUENSHUKENY RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1955	100
GEORGES RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1984	100
TRIB FOURMILE RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1975	100
TIDIOUTE CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1925	100
BLACK CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1968	100
TRIB. TO STONEY RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1999	100
MARSHALL CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1910	100
Beham Run	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1901	100
Unnamd Tr Quemahoning Ck	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1928	100
Ravers Run	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1997	100
INDIAN CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1826	100
LITTLE BUSHKILL CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1979	100
LITTLE BUSHKILL CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1960	100
CHILLISQUAQUE CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1881	100
TRIB. SHAMOKIN CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1930	100
SHULTZ CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1989	100
MONTOUR CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1940	100
SINNEMAHONING CRK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1955	100
OVER CALDWELL CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1940	100
OVER KIANTONE CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1940	100
DEEP CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1922	100
TREXLER RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1989	100
BALD EAGLE CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1992	100
LIZARD CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1971	100
OVER KIANTONE CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1979	100
OVER TUSCARORA CR.	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1940	100
NORTH BR BERMUDIAN CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1966	100
OVER WIDDELFIELD RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1955	100
SEESE RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1950	100
Nancy Run	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1930	100
CHOCONUT CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1900	100
Branch of Brush Creek	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	2000	100
WILSON CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1930	100

Scour Critical Rating Codes

Code 2 — Unaddressed	Bridge is scour critical with no countermeasures installed. The foundation is vulnerable and no protective action has been taken.
Code 3 — Countermeasures Installed	Protective measures (riprap, sheet piling, etc.) have been installed to reduce scour risk, but the bridge remains classified as scour critical.
Code 6 — Countermeasures Ineffective	Protective 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.

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