US Bridges

I 20 WB to I 55 NB over Old US 49

Good

Rankin County, Mississippi · 0.6 MI W US 49 · Structure no. 17000200610471B

Built
2006
19 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
419 ft
7 main spans
Daily traffic
15,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 20 WB to I 55 NB over Old US 49 is a prestressed concrete stringer/multi-beam or girder carrying I 20 WB to I 55 NB over Old US 49 in Rankin County, Mississippi. It was built in 2006, so it is 19 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 15,000 vehicles a day, roughly 18% of them trucks, projected to reach 17,000 by 2043. The structure is 419 ft (127.8 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesI 20 WB to I 55 NB
CrossesOld US 49
Location0.6 MI W US 49
RouteInterstate 20
Coordinates32.27556, -90.1684
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 inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length419 ft (127.8 m)
Longest span75 ft (22.9 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2023)
Projected traffic17,000 by 2043
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemYes

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 WB to I 55 NB over Old US 49 built?

It was built in 2006, making it 19 years old in 2025.

What condition is I 20 WB to I 55 NB 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 WB to I 55 NB over Old US 49 carry?

About 15,000 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is I 20 WB to I 55 NB over Old US 49?

The structure is 419 ft (127.8 m) long with a longest span of 75 ft (22.9 m) and a deck 45 ft wide.

Who owns I 20 WB to I 55 NB over Old US 49?

It is owned by the State Highway Agency.