US Bridges

SR 178 over Relief

Fair

Itawamba County, Mississippi · 6.3 MI E Lee Cl · Structure no. 310017802910500

Built
1931
94 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
90 ft
3 main spans
Daily traffic
150
2023 count
Owner
State
State Highway Agency

About this bridge

SR 178 over Relief is a steel stringer/multi-beam or girder carrying SR 178 over Relief in Itawamba County, Mississippi. It was built in 1931, so it is 94 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 5 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 150 vehicles a day, roughly 10% of them trucks, projected to reach 150 by 2043. The structure is 90 ft (27.4 m) long and 25 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSR 178
CrossesRelief
Location6.3 MI E Lee Cl
RouteState Highway 178
CountyItawamba County
StateMississippi
Coordinates34.26719, -88.44257
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.3 US tons
Inventory rating29.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length90 ft (27.4 m)
Longest span30 ft (9.1 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2023)
Projected traffic150 by 2043
Trucks10%
Lanes on structure20
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed6.8 mi (11 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$210 million
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 178 over Relief built?

It was built in 1931, making it 94 years old in 2025.

What condition is SR 178 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 August 2024.

How much traffic does SR 178 over Relief carry?

About 150 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is SR 178 over Relief?

The structure is 90 ft (27.4 m) long with a longest span of 30 ft (9.1 m) and a deck 25 ft wide.

Who owns SR 178 over Relief?

It is owned by the State Highway Agency.