US Bridges

SR 57 over Old Fort Bayou Tributary

Good

Jackson County, Mississippi · 1.7 MI N I 10 · Structure no. 310005703000300

Built
1947
78 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
37 ft
6 main spans
Daily traffic
7,900
2023 count
Owner
State
State Highway Agency

About this bridge

SR 57 over Old Fort Bayou Tributary is a concrete culvert carrying SR 57 over Old Fort Bayou Tributary in Jackson County, Mississippi. It was built in 1947, so it is 78 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,900 vehicles a day, roughly 11% of them trucks, projected to reach 7,900 by 2043. The structure is 37 ft (11.3 m) long. If it were closed, the detour would be 23 mi (37 km).

CarriesSR 57
CrossesOld Fort Bayou Tributary
Location1.7 MI N I 10
RouteState Highway 57
Coordinates30.46566, -88.71926
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.1 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans6
Design loadHS 20
Structure length37 ft (11.3 m)
Longest span5 ft (1.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,900 (2023)
Projected traffic7,900 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23 mi (37 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 57 over Old Fort Bayou Tributary built?

It was built in 1947, making it 78 years old in 2025.

What condition is SR 57 over Old Fort Bayou Tributary in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in August 2023.

How much traffic does SR 57 over Old Fort Bayou Tributary carry?

About 7,900 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SR 57 over Old Fort Bayou Tributary?

The structure is 37 ft (11.3 m) long with a longest span of 5 ft (1.4 m).

Who owns SR 57 over Old Fort Bayou Tributary?

It is owned by the State Highway Agency.