US Bridges

4th ST over US 49

Good

Forrest County, Mississippi · 2.2 MI S I 59 · Structure no. 510004901807050

Built
1984
41 years old
Condition
Good
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
88 ft
1 main span
Daily traffic
9,200
2023 count
Owner
State
State Highway Agency

About this bridge

4th ST over US 49 is a steel stringer/multi-beam or girder carrying 4th ST over US 49 in Forrest County, Mississippi. It was built in 1984, so it is 41 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 9,200 vehicles a day, roughly 3% of them trucks, projected to reach 9,200 by 2043. The structure is 88 ft (26.8 m) long and 45 ft wide. If it were closed, the detour would be 5 mi (8 km).

Carries4th ST
CrossesUS 49
Location2.2 MI S I 59
RouteCity Street 0
Coordinates31.33196, -89.32916
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length88 ft (26.8 m)
Longest span84 ft (25.6 m)
Deck width45 ft (13.6 m)
Roadway width36 ft (10.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,200 (2023)
Projected traffic9,200 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was 4th ST over US 49 built?

It was built in 1984, making it 41 years old in 2025.

What condition is 4th ST over US 49 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 February 2024.

How much traffic does 4th ST over US 49 carry?

About 9,200 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is 4th ST over US 49?

The structure is 88 ft (26.8 m) long with a longest span of 84 ft (25.6 m) and a deck 45 ft wide.

Who owns 4th ST over US 49?

It is owned by the State Highway Agency.