US Bridges

I 55 over Colony Park Boulevard

Good

Madison County, Mississippi · 1.3 MI N Natchez Trace · Structure no. 11000550451056A

Built
2015
10 years old
Condition
Good
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
374 ft
4 main spans
Daily traffic
43,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 55 over Colony Park Boulevard is a prestressed concrete continuous stringer/multi-beam or girder carrying I 55 over Colony Park Boulevard in Madison County, Mississippi. It was built in 2015, so it is 10 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 43,000 vehicles a day, roughly 16% of them trucks, projected to reach 43,000 by 2043. The structure is 374 ft (114 m) long and 75 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 55
CrossesColony Park Boulevard
Location1.3 MI N Natchez Trace
RouteInterstate 55
Coordinates32.44716, -90.14489
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 inspectionApril 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 rating81.2 US tons
Inventory rating38.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length374 ft (114 m)
Longest span122 ft (37.2 m)
Deck width75 ft (22.8 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43,000 (2023)
Projected traffic43,000 by 2043
Trucks16%
Lanes on structure4
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 proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I 55 over Colony Park Boulevard built?

It was built in 2015, making it 10 years old in 2025.

What condition is I 55 over Colony Park Boulevard 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 Colony Park Boulevard carry?

About 43,000 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is I 55 over Colony Park Boulevard?

The structure is 374 ft (114 m) long with a longest span of 122 ft (37.2 m) and a deck 75 ft wide.

Who owns I 55 over Colony Park Boulevard?

It is owned by the State Highway Agency.