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
WEST FALLS CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1956	50
DECKER CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1956	50
SAWKILL CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1956	50
WHITE BR NORTH FORK CRK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1940	50
WEST BRANCH FISHING CR	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1960	50
OSWAYO CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1912	50
HORTON RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1938	50
INDIAN RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1930	50
PINE CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1967	50
RAUSCH CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1967	50
TOMHICKEN CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1955	50
LOWER LITTLE SWATARA CR	Pennsylvania	Scour Critical — Countermeasures Installed	Good	1860	50
UPPER SWATARA CR	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1962	50
UPPER SWATARA CR	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1961	50
MOYERS MILL RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1930	50
TRIB.OF MIDDLE CR	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1930	50
ROARING RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1916	50
WILLS CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1925	50
STONYCREEK RIVER	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1900	50
N. BR. MEHOOPANY CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1925	50
PORTER CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1930	50
PORTAGE CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Good	2019	50
RILEY CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1990	50
SNAKE CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1920	50
MARTINS CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1920	50
LESLIE CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1958	50
STARRUCCA CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1979	50
E. BR. LACKAWANNA RIVER	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1900	50
GAYLORD CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1903	50
MIDDLE BR. WYALUSING CR.	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1887	50
KETTLE CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	2000	50
EAST BR TIONESTA CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1960	50
NORTH RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1982	50
Trib. to Georges Creek	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1901	50
LITTLE SANDY CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1895	50
OVER PINE CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1907	50
SANDY RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1910	50
TRIB AUNT CLARA FORK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1960	50
STONY RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1959	50
MILL RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1950	50
VAN AUKEN CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1930	50
N BRANCH CALKINS CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1895	50
HOLLISTER CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1963	50
Flaugherty Run	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1998	50
TUBMILL CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1960	50
PORTERS RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1914	50
WHITELOCK CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1945	50
WHITELOCK CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1945	50
FALLS CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1920	50
BUTTERMILK CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1978	50

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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