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 |
|---|---|---|---|---|---|
| SNAKE CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 2000 | 60 |
| BLAKELY CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1977 | 60 |
| DOWD CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1981 | 60 |
| DUGAN BAYOU | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1957 | 60 |
| EAST FORK LEWIS CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1991 | 60 |
| LYNN CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 2002 | 60 |
| HORSE HUNTER CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1984 | 60 |
| CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1984 | 60 |
| JUMP CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1997 | 60 |
| BR. OF LITTLE BUFFALO R. | Mississippi | Scour Critical — Countermeasures Installed | Good | 1998 | 60 |
| SHORT CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1999 | 60 |
| BOGUEBABA CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1998 | 53 |
| FAIRCHILDS CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 2000 | 50 |
| MERIDIAN CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1998 | 50 |
| CREEK | Mississippi | Scour Critical — Countermeasures Installed | Poor | 1962 | 50 |
| BCH OF BEAR CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1996 | 50 |
| SAND CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1992 | 50 |
| MIDDLE BYWY CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1992 | 50 |
| STATION CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 2001 | 50 |
| UNNAMED CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1996 | 50 |
| RAILROAD CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 2002 | 50 |
| LONSILOCHER CANAL | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1992 | 50 |
| LONSILOCHER CANAL | Mississippi | Scour Critical — Countermeasures Installed | Good | 1991 | 50 |
| CHUNKY CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1996 | 50 |
| HOLLIS CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1999 | 50 |
| SHAN CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 2001 | 50 |
| LILLY CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1999 | 50 |
| DONIVAN CREEK | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1996 | 50 |
| DRAINAGE CANAL | Mississippi | Scour Critical — Countermeasures Installed | Good | 1985 | 50 |
| SUNFLOWER RIVER | Mississippi | Scour Critical — Countermeasures Installed | Good | 1968 | 50 |
| BOGUE PHALIA-1162 | Mississippi | Scour Critical — Countermeasures Installed | Good | 1989 | 50 |
| YELLOW CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1996 | 50 |
| BIG BLACK RIVER CANAL | Mississippi | Scour Critical — Countermeasures Installed | Good | 1984 | 50 |
| OTOUCALOFA CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 2001 | 40 |
| RELIEF BUCATUNNA CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1996 | 40 |
| BUCATUNNA CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1998 | 40 |
| SUNFLOWER RIVER | Mississippi | Scour Critical — Countermeasures Installed | Good | 1968 | 40 |
| ASH CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 2001 | 32 |
| BUTTAHATCHIE RIVER | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1937 | 30 |
| BRANCH OF LONG CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1998 | 30 |
| BOPHUMPA CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 2000 | 30 |
| LITTLE BLACK CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1999 | 30 |
| RELIEF DITCH | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1958 | 30 |
| SHELL LAKE | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1985 | 30 |
| JOHNSON CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1998 | 30 |
| LONG CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 2001 | 25 |
| BOGUE HASTY CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1999 | 20 |
| HOBUCK CREEK | Mississippi | Scour Critical — Countermeasures Installed | Good | 1999 | 20 |
| SAVANNAH BRANCH | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1996 | 20 |
| STORMDRAIN TO BROWN LAKE | Mississippi | Scour Critical — Countermeasures Installed | Fair | 1960 | 12 |
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.