Scour Critical Bridges in Mississippi
301 bridges in Mississippi 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 301 bridges in Mississippi have been identified as vulnerable to scour damage.
| Bridge | State | Scour Status | Condition | Year Built | ADT |
|---|---|---|---|---|---|
| SPRING CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1973 | 1,300 |
| HOBOLOCHITTO CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1985 | 1,250 |
| HOMOCHITTO RIVER | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1981 | 1,220 |
| MELVIN BAYOU | Mississippi | Scour Critical — Countermeasures Installed | Good | 2004 | 1,200 |
| HONTOKALO CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1998 | 1,200 |
| JUMPOFF CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1978 | 1,200 |
| HURRICANE CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1992 | 1,200 |
| OKAHATTA CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1985 | 1,200 |
| HICKAHALA CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1963 | 1,100 |
| DITCH | Mississippi | Scour Critical — Countermeasures Installed | Good | 2005 | 1,100 |
| BLACK CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1958 | 1,100 |
| RED CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1984 | 1,000 |
| SAUCIER CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1998 | 1,000 |
| WRIGHT BRANCH | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1977 | 980 |
| COLDWATER CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1989 | 950 |
| RED BUD CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1992 | 910 |
| LICK CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1966 | 900 |
| MILL CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1984 | 890 |
| RELIEF CHANNEL | Mississippi | Scour Critical — Countermeasures Installed | Good | 2004 | 860 |
| RELIEF FOR STRONG RIVER | Mississippi | Scour Critical — Countermeasures Installed | Good | 2001 | 820 |
| LYNCH CR | Mississippi | Scour Critical — Countermeasures Installed | Good | 1998 | 820 |
| WHITESAND CR | Mississippi | Scour Critical — Countermeasures Installed | Good | 1995 | 820 |
| BR OF KIRBY CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 2000 | 820 |
| OKEELALA CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1961 | 800 |
| JOHNSON CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1977 | 800 |
| LITTLE BEAVER CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1966 | 789 |
| PRIESTS CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1995 | 780 |
| DEER CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 2000 | 770 |
| TUSCUMBIA RIVER | Mississippi | Scour Critical — Countermeasures Installed | Poor | 1967 | 760 |
| TALLAHALA CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1981 | 750 |
| BUCK CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 2001 | 740 |
| BLACK CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1994 | 740 |
| STREAM | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1985 | 730 |
| BOGUE HOMO CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1998 | 720 |
| BLACK CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1965 | 690 |
| REDDING CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1987 | 680 |
| BIG BLACK RIVER | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1966 | 660 |
| CHICKASAWHAY RIVER | Mississippi | Scour Critical — Countermeasures Installed | Poor | 1969 | 640 |
| BCH OF BOWIE RIVER | Mississippi | Scour Critical — Countermeasures Installed | Poor | 1974 | 640 |
| UNNAMED CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1962 | 636 |
| RELIEF CHUQUATONCHEE CK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1997 | 622 |
| UPPER LITTLE BLACK CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 2003 | 620 |
| BRANCH OF BAYOU LATTERRE | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1979 | 600 |
| SKUNA RIVER | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1981 | 580 |
| CREAL FIELD BRANCH | Mississippi | Scour Critical — Countermeasures Installed | Poor | 1985 | 580 |
| TUSCOLAMETA CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1974 | 580 |
| BALUCTA CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1976 | 580 |
| POTACOCOWA CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1964 | 560 |
| HOBOLOCHITTO CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1985 | 560 |
| LONG CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1970 | 528 |
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.