US Bridges

US 11 over I 59

Good

Forrest County, Mississippi · US 11 over I 59 · Structure no. 21000110180689B

Built
1960
65 years old
Condition
Good
inspected February 2024
Type
Box Beam or Girders - Single or Spread
Concrete Continuous
Length
320 ft
2 main spans
Daily traffic
3,400
2023 count
Owner
State
State Highway Agency

About this bridge

US 11 over I 59 is a concrete continuous box beam or girders - single or spread carrying US 11 over I 59 in Forrest County, Mississippi. It was built in 1960, so it is 65 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 3,400 vehicles a day, roughly 9% of them trucks, projected to reach 3,400 by 2043. The structure is 320 ft (97.5 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 11
CrossesI 59
LocationUS 11 over I 59
RouteU.S. Route 11
Coordinates31.2597, -89.33744
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.2 US tons
Inventory rating30.1 US tons

Structure

MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2 (+3 approach)
Design loadHS 20
Structure length320 ft (97.5 m)
Longest span77 ft (23.5 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,400 (2023)
Projected traffic3,400 by 2043
Trucks9%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$626 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 11 over I 59 built?

It was built in 1960, making it 65 years old in 2025.

What condition is US 11 over I 59 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 February 2024.

How much traffic does US 11 over I 59 carry?

About 3,400 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is US 11 over I 59?

The structure is 320 ft (97.5 m) long with a longest span of 77 ft (23.5 m) and a deck 33 ft wide.

Who owns US 11 over I 59?

It is owned by the State Highway Agency.