US Bridges

I 55 over Purple Creek

Good

Madison County, Mississippi · 0.6 MI N I 220 · Structure no. 110005504510380

Built
1979
46 years old
Condition
Good
inspected April 2024
Type
Culvert
Concrete
Length
36 ft
2 main spans
Daily traffic
104,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 55 over Purple Creek is a concrete culvert carrying I 55 over Purple Creek in Madison County, Mississippi. It was built in 1979, so it is 46 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 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 104,000 vehicles a day, roughly 7% of them trucks, projected to reach 114,000 by 2043. The structure is 36 ft (11 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 55
CrossesPurple Creek
Location0.6 MI N I 220
RouteInterstate 55
Coordinates32.42105, -90.14497
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.4 US tons
Inventory rating43.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length36 ft (11 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic104,000 (2023)
Projected traffic114,000 by 2043
Trucks7%
Lanes on structure10
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 55 over Purple Creek built?

It was built in 1979, making it 46 years old in 2025.

What condition is I 55 over Purple Creek 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 Purple Creek carry?

About 104,000 vehicles per day (2023 count), of which roughly 7% are trucks.

How long is I 55 over Purple Creek?

The structure is 36 ft (11 m) long with a longest span of 16 ft (4.9 m).

Who owns I 55 over Purple Creek?

It is owned by the State Highway Agency.