US Bridges

SR 311 over Stream

Good

Marshall County, Mississippi · 1.8 MI N SR 7 · Structure no. 310031104700180

Built
1982
43 years old
Condition
Good
inspected January 2024
Type
Culvert
Concrete
Length
26 ft
1 main span
Daily traffic
1,600
2023 count
Owner
State
State Highway Agency

About this bridge

SR 311 over Stream is a concrete culvert carrying SR 311 over Stream in Marshall County, Mississippi. It was built in 1982, so it is 43 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 1,600 vehicles a day, roughly 14% of them trucks, projected to reach 1,600 by 2043. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 26.1 mi (42 km).

CarriesSR 311
CrossesStream
Location1.8 MI N SR 7
RouteState Highway 311
Coordinates34.81171, -89.46523
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.2 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 15
Structure length26 ft (7.9 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (2023)
Projected traffic1,600 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed26.1 mi (42 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 311 over Stream built?

It was built in 1982, making it 43 years old in 2025.

What condition is SR 311 over Stream 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 January 2024.

How much traffic does SR 311 over Stream carry?

About 1,600 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 311 over Stream?

The structure is 26 ft (7.9 m) long with a longest span of 20 ft (6.1 m).

Who owns SR 311 over Stream?

It is owned by the State Highway Agency.