US Bridges

Robinson Road Ext over I 20

Fair

Hinds County, Mississippi · 0.3 MI E SR 18 · Structure no. 510002002504140

Built
1966
59 years old
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
382 ft
8 main spans
Daily traffic
6,500
2023 count
Owner
State
State Highway Agency

About this bridge

Robinson Road Ext over I 20 is a prestressed concrete stringer/multi-beam or girder carrying Robinson Road Ext over I 20 in Hinds County, Mississippi. It was built in 1966, so it is 59 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 6,500 vehicles a day, roughly 5% of them trucks, projected to reach 6,500 by 2043. The structure is 382 ft (116.4 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesRobinson Road Ext
CrossesI 20
Location0.3 MI E SR 18
RouteCity Street 0
CountyHinds County
StateMississippi
Coordinates32.29035, -90.26163
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.8 US tons
Inventory rating50.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans8
Design loadHS 20
Structure length382 ft (116.4 m)
Longest span70 ft (21.3 m)
Deck width35 ft (10.7 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,500 (2023)
Projected traffic6,500 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1,000 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was Robinson Road Ext over I 20 built?

It was built in 1966, making it 59 years old in 2025.

What condition is Robinson Road Ext over I 20 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 2023.

How much traffic does Robinson Road Ext over I 20 carry?

About 6,500 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Robinson Road Ext over I 20?

The structure is 382 ft (116.4 m) long with a longest span of 70 ft (21.3 m) and a deck 35 ft wide.

Who owns Robinson Road Ext over I 20?

It is owned by the State Highway Agency.