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.
| Bridge | State | Scour Status | Condition | Year Built | ADT |
|---|---|---|---|---|---|
| TOAD CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1966 | 400 |
| LITTLE LEHIGH CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1980 | 400 |
| LITTLE LEHIGH CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1960 | 400 |
| SOUTH BR. SAUCON CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1973 | 400 |
| HAGERMANS RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1928 | 400 |
| LILLIBRIDGE CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1957 | 400 |
| TRIB TO PIGEON CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1960 | 400 |
| JOHNS BR RAYSTWN BR JUN | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1937 | 399 |
| LITTLE SCHUYLKILL RIVER | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1928 | 398 |
| CRANES RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1929 | 395 |
| COLEGROVE BROOK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1927 | 395 |
| PINE RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1964 | 390 |
| E. BR. BRANDYWINE CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1914 | 390 |
| TRIBUTARY MIDDLE CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1944 | 388 |
| SALT LICK CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1905 | 384 |
| EAST BR TUNKHANNOCK CRK | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1962 | 383 |
| OVER FRENCH CREEK W BR | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1941 | 382 |
| STEWART RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1926 | 382 |
| WEST BR MESHOPPEN CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1961 | 382 |
| OVER BEAVER RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Good | 1941 | 376 |
| OVER TIDIOUTE CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1910 | 376 |
| BEAVER RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1909 | 376 |
| TRIBUTARY PIDCOCK CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1900 | 375 |
| TUNKHANNOCK CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1942 | 375 |
| QUITTAPAHILLA CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1900 | 375 |
| SNITZ CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1940 | 375 |
| SCHAEFER RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1971 | 374 |
| OVER PADAN CREEK TRIB | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1940 | 372 |
| W.BRANCH RATTLING CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1974 | 372 |
| W BRANCH OF RATTLING CR | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1934 | 372 |
| RATTLING CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1937 | 372 |
| GRAVEL RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Good | 1960 | 372 |
| AQUASHICOLA CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1933 | 370 |
| AQUASHICOLA CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1925 | 370 |
| AQUASHICOLA CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1927 | 370 |
| OVER LITTLE GAP RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1952 | 370 |
| BRANCH HARVEY CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1956 | 369 |
| PUCKETA CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1965 | 366 |
| EAST BRANCH BIG ELK CR. | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1928 | 364 |
| TUB MILL RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1928 | 363 |
| FOWLER RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1990 | 363 |
| TR.ELK LICK CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1937 | 363 |
| MCKEES RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1959 | 360 |
| CLOVER CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1940 | 359 |
| BEAR ROCK RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1938 | 359 |
| TUNKHANNOCK CREEK | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 2000 | 357 |
| WEST BR WALLENPAUPACK CR | Pennsylvania | Scour Critical — Countermeasures Installed | Poor | 1958 | 357 |
| Trib to Northkill Ck | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1922 | 357 |
| SINDELDECKER RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1937 | 356 |
| CHERRY RUN | Pennsylvania | Scour Critical — Countermeasures Installed | Fair | 1938 | 355 |
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.