US Bridges

US 49 to I 55 NB over Old US 49/KCS RR

Good

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

Built
2006
19 years old
Condition
Good
inspected November 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
1,488 ft
17 main spans
Daily traffic
12,000
2023 count
Owner
State
State Highway Agency

About this bridge

US 49 to I 55 NB over Old US 49/KCS RR is a prestressed concrete continuous stringer/multi-beam or girder carrying US 49 to I 55 NB over Old US 49/KCS RR 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 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 12,000 vehicles a day, roughly 18% of them trucks, projected to reach 13,000 by 2043. The structure is 1,488 ft (453.4 m) long and 45 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesUS 49 to I 55 NB
CrossesOld US 49/KCS RR
Location0.6 MI W US 49
RouteInterstate 20
Coordinates32.27509, -90.16494
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.
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 evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating20.8 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans17
Design loadHS 20
Structure length1,488 ft (453.4 m)
Longest span93 ft (28.4 m)
Deck width45 ft (13.6 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic12,000 (2023)
Projected traffic13,000 by 2043
Trucks18%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
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 US 49 to I 55 NB over Old US 49/KCS RR built?

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

What condition is US 49 to I 55 NB over Old US 49/KCS RR 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 US 49 to I 55 NB over Old US 49/KCS RR carry?

About 12,000 vehicles per day (2023 count), of which roughly 18% are trucks.

How long is US 49 to I 55 NB over Old US 49/KCS RR?

The structure is 1,488 ft (453.4 m) long with a longest span of 93 ft (28.4 m) and a deck 45 ft wide.

Who owns US 49 to I 55 NB over Old US 49/KCS RR?

It is owned by the State Highway Agency.