US Bridges

Is 55 S over Is 155

Fair

Pemiscot County, Missouri · S 10 T 18 N R 12 E · Structure no. 2097

Built
1969
56 years old, rebuilt 1984
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
249 ft
2 main spans
Daily traffic
10,172
2024 count
Owner
State
State Highway Agency

About this bridge

Is 55 S over Is 155 is a steel continuous stringer/multi-beam or girder carrying Is 55 S over Is 155 in Pemiscot County, Missouri. It was built in 1969 and reconstructed in 1984, so it is 56 years old, older than the Missouri average of 45.1 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 10,172 vehicles a day, roughly 57% of them trucks, projected to reach 18,818 by 2044. The structure is 249 ft (75.9 m) long and 49 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIs 55 S
CrossesIs 155
LocationS 10 T 18 N R 12 E
RouteInterstate 55
Coordinates36.21663, -89.74889
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating58.5 US tons
Inventory rating34.7 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+2 approach)
Design loadHS 20 + Mod
Structure length249 ft (75.9 m)
Longest span87 ft (26.5 m)
Deck width49 ft (14.9 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,172 (2024)
Projected traffic18,818 by 2044
Trucks57%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 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 Is 55 S over Is 155 built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 1984.

What condition is Is 55 S over Is 155 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 February 2024.

How much traffic does Is 55 S over Is 155 carry?

About 10,172 vehicles per day (2024 count), of which roughly 57% are trucks.

How long is Is 55 S over Is 155?

The structure is 249 ft (75.9 m) long with a longest span of 87 ft (26.5 m) and a deck 49 ft wide.

Who owns Is 55 S over Is 155?

It is owned by the State Highway Agency.