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
BR.LITTLE NESHAMINY CR.	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1923	14,595
CRUM CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1949	14,523
PARK CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1985	14,495
ZACHARIAS CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1970	14,446
PENNA CANAL	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1934	14,443
BRANCH MARTINS CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1954	14,412
BRANCH NESHAMINY CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1932	14,399
SPROGELS RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1910	14,340
SKIPPACK CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1792	14,242
GARDNERS CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1963	14,152
OVER BENNYS RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1947	14,116
INDIAN CREEK/ 3030F04	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1930	14,013
NORTH BR.NESHAMINY CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1948	13,911
COBBS CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1927	13,856
Swatara Creek	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1967	13,843
STONY CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1950	13,812
SINKING CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1930	13,783
COBBS CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1937	13,750
MILL CREEK / 3374-B1	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1979	13,531
ROCK PARK CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1932	13,466
STONY RUN CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1942	13,454
OVER FOURMILE CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1930	13,435
W FRK E BR WHITE CLAY CR	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1965	13,382
E.FRK. BR. WHITE CLAY CR	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1965	13,382
DARBY CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1931	13,380
WISSAHICKON CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1926	13,301
OVER SIX MILE CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1954	13,267
WOODEN BRIDGE RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1953	13,244
PARK CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1987	13,241
BUSHKILL CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1886	13,117
DARBY CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1923	13,028
TRIB. TO SAUCON CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1922	13,025
BYBERRY CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1963	13,022
BYBERRY CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1963	13,022
TOWAMENCIN CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1928	12,986
PENNYPACK CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1930	12,877
PENNYPACK CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1930	12,877
BUCK CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1930	12,743
COBBS CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1909	12,715
SOUTH BR OF CONEWAGO	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1956	12,695
LODAL CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1950	12,530
CHESTER CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1946	12,485
CATASAUQUA CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1947	12,475
PIGEON CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1942	12,416
LOWRIES RUN	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1914	12,322
PANTHER CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1926	12,303
Wissahickon Creek	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1820	12,200
VALLEY CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1929	12,126
POCONO CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Poor	1956	12,104
BUSHKILL CREEK	Pennsylvania	Scour Critical — Countermeasures Installed	Fair	1894	12,031

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.

All Bridges Poor Condition Historic Bridges Bridge Stats