US Bridges

US 11 over Leaf River

Good

Forrest County, Mississippi · 0.5 MI S SR 42 East · Structure no. 210001101807630

Built
1978
47 years old
Condition
Good
inspected March 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,042 ft
3 main spans
Daily traffic
12,000
2023 count
Owner
State
State Highway Agency

About this bridge

US 11 over Leaf River is a steel continuous stringer/multi-beam or girder carrying US 11 over Leaf River in Forrest County, Mississippi. It was built in 1978, so it is 47 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 12,000 vehicles a day, roughly 7% of them trucks, projected to reach 12,000 by 2043. The structure is 1,042 ft (317.6 m) long and 85 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 11
CrossesLeaf River
Location0.5 MI S SR 42 East
RouteU.S. Route 11
Coordinates31.34295, -89.28081
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating35.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+12 approach)
Design loadHS 20
Structure length1,042 ft (317.6 m)
Longest span180 ft (54.9 m)
Deck width85 ft (26 m)
Roadway width71 ft (21.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2023)
Projected traffic12,000 by 2043
Trucks7%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemYes

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 US 11 over Leaf River built?

It was built in 1978, making it 47 years old in 2025.

What condition is US 11 over Leaf River 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 2024.

How much traffic does US 11 over Leaf River carry?

About 12,000 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is US 11 over Leaf River?

The structure is 1,042 ft (317.6 m) long with a longest span of 180 ft (54.9 m) and a deck 85 ft wide.

Who owns US 11 over Leaf River?

It is owned by the State Highway Agency.