US Bridges

US 51 over Relief

Good

Lincoln County, Mississippi · 1.1 MI S US 84 · Structure no. 210005104303900

Built
1956
69 years old
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
3,000
2023 count
Owner
State
State Highway Agency

About this bridge

US 51 over Relief is a concrete culvert carrying US 51 over Relief in Lincoln County, Mississippi. It was built in 1956, so it is 69 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 3,000 vehicles a day, roughly 8% of them trucks, projected to reach 3,100 by 2043. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 51
CrossesRelief
Location1.1 MI S US 84
RouteU.S. Route 51
Coordinates31.53261, -90.46496
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110 US tons
Inventory rating65.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length40 ft (12.2 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,000 (2023)
Projected traffic3,100 by 2043
Trucks8%
Lanes on structure20
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed1.9 mi (3 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 51 over Relief built?

It was built in 1956, making it 69 years old in 2025.

What condition is US 51 over Relief 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 2025.

How much traffic does US 51 over Relief carry?

About 3,000 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is US 51 over Relief?

The structure is 40 ft (12.2 m) long with a longest span of 12 ft (3.7 m).

Who owns US 51 over Relief?

It is owned by the State Highway Agency.