US Bridges

I 20 over I 55/I 20 W Ramps&us 51

Good

Hinds County, Mississippi · 2.4 MI E I 220 · Structure no. 11000200250450B

Built
2021
4 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
1,855 ft
14 main spans
Daily traffic
36,500
2023 count
Owner
State
State Highway Agency

About this bridge

I 20 over I 55/I 20 W Ramps&us 51 is a prestressed concrete continuous stringer/multi-beam or girder carrying I 20 over I 55/I 20 W Ramps&us 51 in Hinds County, Mississippi. It was built in 2021, so it is 4 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 36,500 vehicles a day, roughly 19% of them trucks, projected to reach 40,000 by 2043. The structure is 1,855 ft (565.4 m) long and 63 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI 20
CrossesI 55/I 20 W Ramps&us 51
Location2.4 MI E I 220
RouteInterstate 20
CountyHinds County
StateMississippi
Coordinates32.27631, -90.21004
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.2 US tons
Inventory rating36.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans14
Design loadHL 93
Structure length1,855 ft (565.4 m)
Longest span170 ft (51.8 m)
Deck width63 ft (19.2 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic36,500 (2023)
Projected traffic40,000 by 2043
Trucks19%
Lanes on structure3
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 20 over I 55/I 20 W Ramps&us 51 built?

It was built in 2021, making it 4 years old in 2025.

What condition is I 20 over I 55/I 20 W Ramps&us 51 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 August 2024.

How much traffic does I 20 over I 55/I 20 W Ramps&us 51 carry?

About 36,500 vehicles per day (2023 count), of which roughly 19% are trucks.

How long is I 20 over I 55/I 20 W Ramps&us 51?

The structure is 1,855 ft (565.4 m) long with a longest span of 170 ft (51.8 m) and a deck 63 ft wide.

Who owns I 20 over I 55/I 20 W Ramps&us 51?

It is owned by the State Highway Agency.