US Bridges

SR 48 over Relief

Fair

Amite County, Mississippi · 4.2 MI E SR 24 · Structure no. 310004800300440

Built
1952
73 years old
Condition
Fair
inspected March 2024
Type
Slab
Concrete
Length
100 ft
5 main spans
Daily traffic
1,400
2023 count
Owner
State
State Highway Agency

About this bridge

SR 48 over Relief is a concrete slab carrying SR 48 over Relief in Amite County, Mississippi. It was built in 1952, so it is 73 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,400 vehicles a day, roughly 19% of them trucks, projected to reach 1,400 by 2043. The structure is 100 ft (30.5 m) long and 29 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

CarriesSR 48
CrossesRelief
Location4.2 MI E SR 24
RouteState Highway 48
Coordinates31.1036, -90.96988
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating27.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 15
Structure length100 ft (30.5 m)
Longest span20 ft (6.1 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2023)
Projected traffic1,400 by 2043
Trucks19%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed29.8 mi (48 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$468 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 48 over Relief built?

It was built in 1952, making it 73 years old in 2025.

What condition is SR 48 over Relief in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.

How much traffic does SR 48 over Relief carry?

About 1,400 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is SR 48 over Relief?

The structure is 100 ft (30.5 m) long with a longest span of 20 ft (6.1 m) and a deck 29 ft wide.

Who owns SR 48 over Relief?

It is owned by the State Highway Agency.