US Bridges

I 55 over Unnamed Stream

Fair

Lincoln County, Mississippi · 6.2 MI N Pike Cl · Structure no. 110005504303060

Built
1965
60 years old
Condition
Fair
inspected January 2025
Type
Culvert
Concrete
Length
40 ft
2 main spans
Daily traffic
21,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 55 over Unnamed Stream is a concrete culvert carrying I 55 over Unnamed Stream in Lincoln County, Mississippi. It was built in 1965, so it is 60 years old, older than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 21,000 vehicles a day, roughly 23% of them trucks, projected to reach 27,000 by 2043. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 55
CrossesUnnamed Stream
Location6.2 MI N Pike Cl
RouteInterstate 55
Coordinates31.44243, -90.47961
Functional classRural Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length40 ft (12.2 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 traffic21,000 (2023)
Projected traffic27,000 by 2043
Trucks23%
Lanes on structure40
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 Unnamed Stream built?

It was built in 1965, making it 60 years old in 2025.

What condition is I 55 over Unnamed Stream in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in January 2025.

How much traffic does I 55 over Unnamed Stream carry?

About 21,000 vehicles per day (2023 count), of which roughly 23% are trucks.

How long is I 55 over Unnamed Stream?

The structure is 40 ft (12.2 m) long with a longest span of 16 ft (4.9 m).

Who owns I 55 over Unnamed Stream?

It is owned by the State Highway Agency.