US Bridges

SR 178 over Relief

Good

Itawamba County, Mississippi · 0.9 MI E SR 25 N · Structure no. 210007802911280

Built
1938
87 years old
Condition
Good
inspected August 2024
Type
Culvert
Concrete
Length
31 ft
3 main spans
Daily traffic
1,400
2023 count
Owner
State
State Highway Agency

About this bridge

SR 178 over Relief is a concrete culvert carrying SR 178 over Relief in Itawamba County, Mississippi. It was built in 1938, so it is 87 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 1,400 vehicles a day, roughly 11% of them trucks, projected to reach 1,400 by 2043. The structure is 31 ft (9.6 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSR 178
CrossesRelief
Location0.9 MI E SR 25 N
RouteState Highway 178
Coordinates34.25763, -88.31663
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 inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.3 US tons
Inventory rating22.3 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadH 15
Structure length31 ft (9.6 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 traffic1,400 (2023)
Projected traffic1,400 by 2043
Trucks11%
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 SR 178 over Relief built?

It was built in 1938, making it 87 years old in 2025.

What condition is SR 178 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 August 2024.

How much traffic does SR 178 over Relief carry?

About 1,400 vehicles per day (2023 count), of which roughly 11% are trucks.

How long is SR 178 over Relief?

The structure is 31 ft (9.6 m) long with a longest span of 10 ft (3 m).

Who owns SR 178 over Relief?

It is owned by the State Highway Agency.