US Bridges

I 20 over Old US 49

Good

Rankin County, Mississippi · 0.6 MI W US 49 · Structure no. 11000200610472A

Built
1967
58 years old, rebuilt 1997
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
417 ft
1 main span
Daily traffic
22,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 20 over Old US 49 is a steel stringer/multi-beam or girder carrying I 20 over Old US 49 in Rankin County, Mississippi. It was built in 1967 and reconstructed in 1997, so it is 58 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 22,000 vehicles a day, roughly 21% of them trucks, projected to reach 22,500 by 2043. The structure is 417 ft (127.1 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 20
CrossesOld US 49
Location0.6 MI W US 49
RouteInterstate 20
Coordinates32.27507, -90.16854
Functional classUrban Principal Arterial - Interstate

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionNovember 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 rating57.5 US tons
Inventory rating21.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+6 approach)
Design loadHS 20
Structure length417 ft (127.1 m)
Longest span60 ft (18.3 m)
Deck width53 ft (16.1 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,000 (2023)
Projected traffic22,500 by 2043
Trucks21%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$437 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 20 over Old US 49 built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 1997.

What condition is I 20 over Old 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 November 2024.

How much traffic does I 20 over Old US 49 carry?

About 22,000 vehicles per day (2023 count), of which roughly 21% are trucks.

How long is I 20 over Old US 49?

The structure is 417 ft (127.1 m) long with a longest span of 60 ft (18.3 m) and a deck 53 ft wide.

Who owns I 20 over Old US 49?

It is owned by the State Highway Agency.