US Bridges

US 45A over Relief

Good

Lowndes County, Mississippi · 10.1 MI N Noxubee Cl · Structure no. 220004504415560

Built
2000
25 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
7,600
2023 count
Owner
State
State Highway Agency

About this bridge

US 45A over Relief is a concrete culvert carrying US 45A over Relief in Lowndes County, Mississippi. It was built in 2000, so it is 25 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 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 7,600 vehicles a day, roughly 17% of them trucks, projected to reach 9,800 by 2043. The structure is 20 ft (6.2 m) long. If it were closed, the detour would be 8.7 mi (14 km).

CarriesUS 45A
CrossesRelief
Location10.1 MI N Noxubee Cl
RouteU.S. Route 45A
Coordinates33.42553, -88.65409
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
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 rating104.4 US tons
Inventory rating62.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length20 ft (6.2 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,600 (2023)
Projected traffic9,800 by 2043
Trucks17%
Lanes on structure20
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 45A over Relief built?

It was built in 2000, making it 25 years old in 2025.

What condition is US 45A 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 September 2024.

How much traffic does US 45A over Relief carry?

About 7,600 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is US 45A over Relief?

The structure is 20 ft (6.2 m) long with a longest span of 10 ft (3 m).

Who owns US 45A over Relief?

It is owned by the State Highway Agency.