US Bridges

US 49 over Relief Opening

FairPosted for load

Coahoma County, Mississippi · 0.3 MI E Miss/Ark ST Line · Structure no. 210004901433680

Built
1961
64 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
1,000 ft
20 main spans
Daily traffic
3,800
2023 count
Owner
State
State Highway Agency

About this bridge

US 49 over Relief Opening is a prestressed concrete stringer/multi-beam or girder carrying US 49 over Relief Opening in Coahoma County, Mississippi. It was built in 1961, so it is 64 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 3,800 vehicles a day, roughly 18% of them trucks, projected to reach 3,800 by 2043. The structure is 1,000 ft (304.8 m) long and 28 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesUS 49
CrossesRelief Opening
Location0.3 MI E Miss/Ark ST Line
RouteU.S. Route 49
CountyCoahoma County
StateMississippi
Coordinates34.49272, -90.5713
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.2 US tons
Inventory rating31 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans20
Design loadHS 20
Structure length1,000 ft (304.8 m)
Longest span50 ft (15.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,800 (2023)
Projected traffic3,800 by 2043
Trucks18%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed123.7 mi (199 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 million
NavigationNo navigation control on waterway

Frequently asked questions

When was US 49 over Relief Opening built?

It was built in 1961, making it 64 years old in 2025.

What condition is US 49 over Relief Opening 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 September 2023.

How much traffic does US 49 over Relief Opening carry?

About 3,800 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is US 49 over Relief Opening?

The structure is 1,000 ft (304.8 m) long with a longest span of 50 ft (15.2 m) and a deck 28 ft wide.

Who owns US 49 over Relief Opening?

It is owned by the State Highway Agency.