US Bridges

I 20 over Old US 49

Fair

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

Built
1967
58 years old, rebuilt 1997
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
382 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 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.

It carries about 22,000 vehicles a day, roughly 18% of them trucks, projected to reach 25,000 by 2043. The structure is 382 ft (116.4 m) long and 66 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
Coordinates32.27457, -90.17001
Functional classUrban Principal Arterial - Interstate

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.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating33.1 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1 (+6 approach)
Design loadHS 20
Structure length382 ft (116.4 m)
Longest span60 ft (18.3 m)
Deck width66 ft (20.1 m)
Roadway width63 ft (19.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,000 (2023)
Projected traffic25,000 by 2043
Trucks18%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$417 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 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 November 2024.

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

About 22,000 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I 20 over Old US 49?

The structure is 382 ft (116.4 m) long with a longest span of 60 ft (18.3 m) and a deck 66 ft wide.

Who owns I 20 over Old US 49?

It is owned by the State Highway Agency.