US Bridges

I 20 over SR 468

Good

Rankin County, Mississippi · I 20 over SR 468 · Structure no. 11000200610494B

Built
1967
58 years old, rebuilt 2012
Condition
Good
inspected December 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
222 ft
4 main spans
Daily traffic
38,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 20 over SR 468 is a prestressed concrete stringer/multi-beam or girder carrying I 20 over SR 468 in Rankin County, Mississippi. It was built in 1967 and reconstructed in 2012, 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 38,500 vehicles a day, roughly 13% of them trucks, projected to reach 42,500 by 2043. The structure is 222 ft (67.7 m) long and 42 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 20
CrossesSR 468
LocationI 20 over SR 468
RouteInterstate 20
Coordinates32.26606, -90.13457
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 inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.5 US tons
Inventory rating34.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length222 ft (67.7 m)
Longest span60 ft (18.3 m)
Deck width42 ft (12.7 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,500 (2023)
Projected traffic42,500 by 2043
Trucks13%
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 SR 468 built?

It was built in 1967, making it 58 years old in 2025. It was reconstructed in 2012.

What condition is I 20 over SR 468 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 December 2024.

How much traffic does I 20 over SR 468 carry?

About 38,500 vehicles per day (2023 count), of which roughly 13% are trucks.

How long is I 20 over SR 468?

The structure is 222 ft (67.7 m) long with a longest span of 60 ft (18.3 m) and a deck 42 ft wide.

Who owns I 20 over SR 468?

It is owned by the State Highway Agency.