US Bridges

SR 7 over US 278

Good

Lafayette County, Mississippi · SR 7 over US 278 · Structure no. 31000070361181B

Built
1967
58 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
242 ft
4 main spans
Daily traffic
8,000
2023 count
Owner
State
State Highway Agency

About this bridge

SR 7 over US 278 is a prestressed concrete stringer/multi-beam or girder carrying SR 7 over US 278 in Lafayette County, Mississippi. It was built in 1967, so it is 58 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 8,000 vehicles a day, roughly 12% of them trucks, projected to reach 8,000 by 2043. The structure is 242 ft (73.8 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesSR 7
CrossesUS 278
LocationSR 7 over US 278
RouteState Highway 7
Coordinates34.35381, -89.50854
Functional classUrban Principal Arterial - Other Freeway or Expressway

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.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74.5 US tons
Inventory rating44.6 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length242 ft (73.8 m)
Longest span60 ft (18.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,000 (2023)
Projected traffic8,000 by 2043
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$360 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was SR 7 over US 278 built?

It was built in 1967, making it 58 years old in 2025.

What condition is SR 7 over US 278 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 July 2024.

How much traffic does SR 7 over US 278 carry?

About 8,000 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is SR 7 over US 278?

The structure is 242 ft (73.8 m) long with a longest span of 60 ft (18.3 m) and a deck 30 ft wide.

Who owns SR 7 over US 278?

It is owned by the State Highway Agency.