US Bridges

SR 309 over Red Banks Crk Tributary

Good

Marshall County, Mississippi · 3.9 MI S I 22 · Structure no. 310030904701210

Built
2021
4 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
4,100
2023 count
Owner
State
State Highway Agency

About this bridge

SR 309 over Red Banks Crk Tributary is a concrete culvert carrying SR 309 over Red Banks Crk Tributary in Marshall County, Mississippi. It was built in 2021, so it is 4 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,100 vehicles a day, roughly 10% of them trucks, projected to reach 4,100 by 2043. The structure is 23 ft (6.9 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesSR 309
CrossesRed Banks Crk Tributary
Location3.9 MI S I 22
RouteState Highway 309
Coordinates34.79994, -89.68836
Functional classRural Major Collector

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 protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.6 US tons
Inventory rating37.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length23 ft (6.9 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,100 (2023)
Projected traffic4,100 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 309 over Red Banks Crk Tributary built?

It was built in 2021, making it 4 years old in 2025.

What condition is SR 309 over Red Banks Crk 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 March 2023.

How much traffic does SR 309 over Red Banks Crk Tributary carry?

About 4,100 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SR 309 over Red Banks Crk Tributary?

The structure is 23 ft (6.9 m) long with a longest span of 16 ft (4.9 m).

Who owns SR 309 over Red Banks Crk Tributary?

It is owned by the State Highway Agency.