US Bridges

I 55 over Stream

Fair

Grenada County, Mississippi · 4.3 MI S SR 7 · Structure no. 110005502220150

Built
1965
60 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
47 ft
2 main spans
Daily traffic
15,000
2023 count
Owner
State
State Highway Agency

About this bridge

I 55 over Stream is a concrete culvert carrying I 55 over Stream in Grenada 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 15,000 vehicles a day, roughly 32% of them trucks, projected to reach 17,000 by 2043. The structure is 47 ft (14.3 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 55
CrossesStream
Location4.3 MI S SR 7
RouteInterstate 55
Coordinates33.72651, -89.83113
Functional classUrban 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 inspectionNovember 2023
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
Structure length47 ft (14.3 m)
Longest span18 ft (5.5 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,000 (2023)
Projected traffic17,000 by 2043
Trucks32%
Lanes on structure4
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$357 million
NavigationNo navigation control on waterway

Frequently asked questions

When was I 55 over Stream built?

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

What condition is I 55 over 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 November 2023.

How much traffic does I 55 over Stream carry?

About 15,000 vehicles per day (2023 count), of which roughly 32% are trucks.

How long is I 55 over Stream?

The structure is 47 ft (14.3 m) long with a longest span of 18 ft (5.5 m).

Who owns I 55 over Stream?

It is owned by the State Highway Agency.