US Bridges

I 20 over Old US 49

Good

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

Built
1997
28 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
417 ft
5 main spans
Daily traffic
22,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 20 over Old US 49 is a prestressed concrete continuous stringer/multi-beam or girder carrying I 20 over Old US 49 in Rankin County, Mississippi. It was built in 1997, so it is 28 years old, younger 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 24,000 by 2043. The structure is 417 ft (127.1 m) long and 51 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
Coordinates32.2751, -90.16991
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.
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 rating58.4 US tons
Inventory rating34.9 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans5 (+2 approach)
Design loadHS 20
Structure length417 ft (127.1 m)
Longest span60 ft (18.3 m)
Deck width51 ft (15.5 m)
Roadway width48 ft (14.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,000 (2023)
Projected traffic24,000 by 2043
Trucks21%
Lanes on structure2
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 20 over Old US 49 built?

It was built in 1997, making it 28 years old in 2025.

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 51 ft wide.

Who owns I 20 over Old US 49?

It is owned by the State Highway Agency.