US Bridges

I 55 over Soldier Colony Road

Good

Madison County, Mississippi · 0.9 MI S SR 22 · Structure no. 11000550451169A

Built
1961
64 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
155 ft
3 main spans
Daily traffic
20,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 55 over Soldier Colony Road is a prestressed concrete stringer/multi-beam or girder carrying I 55 over Soldier Colony Road in Madison County, Mississippi. It was built in 1961, so it is 64 years old, older 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 20,000 vehicles a day, roughly 15% of them trucks, projected to reach 20,000 by 2043. The structure is 155 ft (47.2 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 55
CrossesSoldier Colony Road
Location0.9 MI S SR 22
RouteInterstate 55
Coordinates32.59345, -90.06946
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.
Substructure8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.4 US tons
Inventory rating46.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20 + Mod
Structure length155 ft (47.2 m)
Longest span51 ft (15.5 m)
Deck width33 ft (10 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20,000 (2023)
Projected traffic20,000 by 2043
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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$314 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 55 over Soldier Colony Road built?

It was built in 1961, making it 64 years old in 2025.

What condition is I 55 over Soldier Colony Road 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 April 2024.

How much traffic does I 55 over Soldier Colony Road carry?

About 20,000 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is I 55 over Soldier Colony Road?

The structure is 155 ft (47.2 m) long with a longest span of 51 ft (15.5 m) and a deck 33 ft wide.

Who owns I 55 over Soldier Colony Road?

It is owned by the State Highway Agency.