US Bridges

SR 28 over Strong River

FairPosted for load

Simpson County, Mississippi · 8.9 MI E Copiah Cl · Structure no. 310002806407360

Built
1943
82 years old
Condition
Fair
inspected May 2024
Type
Truss - Thru
Steel
Length
292 ft
1 main span
Daily traffic
2,500
2023 count
Owner
State
State Highway Agency

About this bridge

SR 28 over Strong River is a steel truss - thru carrying SR 28 over Strong River in Simpson County, Mississippi. It was built in 1943, so it is 82 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. Its operating status is: posted for load restriction.

It carries about 2,500 vehicles a day, roughly 14% of them trucks, projected to reach 2,500 by 2043. The structure is 292 ft (89 m) long and 25 ft wide. If it were closed, the detour would be 16.8 mi (27 km).

Location

Open in Google Maps
CarriesSR 28
CrossesStrong River
Location8.9 MI E Copiah Cl
RouteState Highway 28
CountySimpson County
StateMississippi
Coordinates31.88636, -89.9942
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusPosted for load 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.8 US tons
Inventory rating20.2 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadH 15
Structure length292 ft (89 m)
Longest span150 ft (45.7 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck15 ft (4.5 m)

Traffic and service

Average daily traffic2,500 (2023)
Projected traffic2,500 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.8 mi (27 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 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 SR 28 over Strong River built?

It was built in 1943, making it 82 years old in 2025.

What condition is SR 28 over Strong River 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 May 2024.

How much traffic does SR 28 over Strong River carry?

About 2,500 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 28 over Strong River?

The structure is 292 ft (89 m) long with a longest span of 150 ft (45.7 m) and a deck 25 ft wide.

Who owns SR 28 over Strong River?

It is owned by the State Highway Agency.