US Bridges

SR 15 over Relief

Fair

Winston County, Mississippi · 1.4 MI N SR 490 · Structure no. 310001508018570

Built
1965
60 years old
Condition
Fair
inspected April 2024
Type
Slab
Concrete
Length
280 ft
14 main spans
Daily traffic
4,800
2023 count
Owner
State
State Highway Agency

About this bridge

SR 15 over Relief is a concrete slab carrying SR 15 over Relief in Winston County, Mississippi. It was built in 1965, so it is 60 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 4,800 vehicles a day, roughly 14% of them trucks, projected to reach 4,800 by 2043. The structure is 280 ft (85.3 m) long and 31 ft wide. If it were closed, the detour would be 21.1 mi (34 km).

Location

Open in Google Maps
CarriesSR 15
CrossesRelief
Location1.4 MI N SR 490
RouteState Highway 15
CountyWinston County
StateMississippi
Coordinates33.0207, -89.05918
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.9 US tons
Inventory rating42.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans14
Design loadHS 20
Structure length280 ft (85.3 m)
Longest span20 ft (6.1 m)
Deck width31 ft (9.5 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,800 (2023)
Projected traffic4,800 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed21.1 mi (34 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 of existing bridge without deck rehabilitation
Estimated improvement cost$531 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 15 over Relief built?

It was built in 1965, making it 60 years old in 2025.

What condition is SR 15 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 April 2024.

How much traffic does SR 15 over Relief carry?

About 4,800 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 15 over Relief?

The structure is 280 ft (85.3 m) long with a longest span of 20 ft (6.1 m) and a deck 31 ft wide.

Who owns SR 15 over Relief?

It is owned by the State Highway Agency.