Scour Critical Bridges in Arkansas
187 bridges in Arkansas 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 187 bridges in Arkansas have been identified as vulnerable to scour damage.
| Bridge | State | Scour Status | Condition | Year Built | ADT |
|---|---|---|---|---|---|
| MEADOW CREEK | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1990 | 1,024 |
| Alexander Creek | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1928 | 1,000 |
| Hamestring Creek | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1970 | 1,000 |
| Rock Creek | Arkansas | Scour Critical — Countermeasures Installed | Fair | 2002 | 983 |
| Indian Bayou | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1981 | 940 |
| Curtis Creek | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1978 | 904 |
| Lost Creek | Arkansas | Scour Critical — Countermeasures Installed | Good | 1978 | 810 |
| Holt Branch-Arkansas Co | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1910 | 740 |
| MOUNTAIN BRANCH | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1956 | 736 |
| E Fork of Hampton Creek | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1943 | 700 |
| LITTLE BUFFALO RIVER | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1939 | 642 |
| Black Creek | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1942 | 544 |
| Seemore Creek Seb. Co. | Arkansas | Scour Critical — Countermeasures Installed | Good | 1940 | 533 |
| CREEK | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1960 | 500 |
| Sanders Creek | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1965 | 490 |
| DRY CREEK | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1984 | 469 |
| CACHE RELIEF | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1956 | 444 |
| CACHE RIVER | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1956 | 444 |
| BRANCH | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1969 | 412 |
| Gumlog Creek | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1970 | 385 |
| Pond Creek | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1930 | 365 |
| Alex Branch-Polk Co. | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1937 | 334 |
| Jacks Creek | Arkansas | Scour Critical — Countermeasures Installed | Fair | 2004 | 316 |
| COCKLE BURR CREEK | Arkansas | Scour Critical — Countermeasures Installed | Good | 1978 | 310 |
| KELLY BAYOU | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1974 | 309 |
| TOWN CREEK | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1960 | 286 |
| LICK BRANCH CREEK | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1940 | 284 |
| SHOAT BRANCH | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1990 | 282 |
| Creek | Arkansas | Scour Critical — Countermeasures Installed | Good | 2023 | 278 |
| Illinois River - Wash. | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1965 | 273 |
| Smith Creek | Arkansas | Scour Critical — Countermeasures Installed | Good | 2018 | 250 |
| Reeves Creek | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1930 | 234 |
| JACKSON CREEK | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1999 | 230 |
| BLUFF CREEK | Arkansas | Scour Critical — Countermeasures Installed | Fair | 2008 | 223 |
| HALL BRANCH CREEK | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1993 | 222 |
| Cove creek | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1994 | 200 |
| Muddy Fork Illinois Rvr. | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1998 | 199 |
| LITHIA CREEK | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1989 | 195 |
| Frog Bayou | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1935 | 190 |
| Wedington Creek-Wash | Arkansas | Scour Critical — Countermeasures Installed | Fair | 2006 | 185 |
| Poteau River | Arkansas | Scour Critical — Countermeasures Installed | Good | 1986 | 180 |
| STRAWBERRY RIVER | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1938 | 180 |
| SLOUGH DITCH | Arkansas | Scour Critical — Countermeasures Installed | Fair | 2004 | 173 |
| SMACKOVER CREEK | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1975 | 151 |
| OLD SUGAR CREEK | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1990 | 134 |
| CORNIE CREEK RELIEF | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1965 | 120 |
| CEDAR CREEK | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1941 | 112 |
| Cypress Creek | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1972 | 110 |
| Cypress Creek | Arkansas | Scour Critical — Countermeasures Installed | Fair | 1974 | 110 |
| CREEK | Arkansas | Scour Critical — Countermeasures Installed | Poor | 1948 | 110 |
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.