US Bridges

US 45 over Relief

Good

Noxubee County, Mississippi · 4.2 MI N SR 39 · Structure no. 210004505212740

Built
1996
29 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
40 ft
2 main spans
Daily traffic
5,500
2023 count
Owner
State
State Highway Agency

About this bridge

US 45 over Relief is a concrete culvert carrying US 45 over Relief in Noxubee County, Mississippi. It was built in 1996, so it is 29 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 5,500 vehicles a day, roughly 31% of them trucks, projected to reach 6,000 by 2043. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 45
CrossesRelief
Location4.2 MI N SR 39
RouteU.S. Route 45
Coordinates33.03887, -88.56267
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.5 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,500 (2023)
Projected traffic6,000 by 2043
Trucks31%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 45 over Relief built?

It was built in 1996, making it 29 years old in 2025.

What condition is US 45 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 November 2023.

How much traffic does US 45 over Relief carry?

About 5,500 vehicles per day (2023 count), of which roughly 31% are trucks.

How long is US 45 over Relief?

The structure is 40 ft (12.2 m) long with a longest span of 16 ft (4.9 m).

Who owns US 45 over Relief?

It is owned by the State Highway Agency.