US Bridges

I 20 over KCS Rr/County Road

Fair

Rankin County, Mississippi · 0.4 MI W US 49 · Structure no. 11000200610474A

Built
1967
58 years old, rebuilt 1997
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
422 ft
3 main spans
Daily traffic
22,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 20 over KCS Rr/County Road is a prestressed concrete stringer/multi-beam or girder carrying I 20 over KCS Rr/County Road 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 5 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 21% of them trucks, projected to reach 22,500 by 2043. The structure is 422 ft (128.6 m) long and 53 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 20
CrossesKCS Rr/County Road
Location0.4 MI W US 49
RouteInterstate 20
CountyRankin County
StateMississippi
Coordinates32.27449, -90.1648
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
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 rating54.8 US tons
Inventory rating32.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3 (+4 approach)
Design loadHS 20
Structure length422 ft (128.6 m)
Longest span70 ft (21.3 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 structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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$440 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 20 over KCS Rr/County Road built?

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

What condition is I 20 over KCS Rr/County Road 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 KCS Rr/County Road carry?

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

How long is I 20 over KCS Rr/County Road?

The structure is 422 ft (128.6 m) long with a longest span of 70 ft (21.3 m) and a deck 53 ft wide.

Who owns I 20 over KCS Rr/County Road?

It is owned by the State Highway Agency.