US Bridges

Is 55 S over Main Dtch

Fair

Pemiscot County, Missouri · S 3 T 16 N R 11 E · Structure no. 6294

Built
1953
72 years old, rebuilt 1984
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
168 ft
5 main spans
Daily traffic
8,084
2024 count
Owner
State
State Highway Agency

About this bridge

Is 55 S over Main Dtch is a steel stringer/multi-beam or girder carrying Is 55 S over Main Dtch in Pemiscot County, Missouri. It was built in 1953 and reconstructed in 1984, so it is 72 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 5 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 8,084 vehicles a day, roughly 41% of them trucks, projected to reach 14,955 by 2044. The structure is 168 ft (51.2 m) long and 49 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIs 55 S
CrossesMain Dtch
LocationS 3 T 16 N R 11 E
RouteInterstate 55
Coordinates36.05063, -89.84343
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.6 US tons
Inventory rating32.7 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans5
Design loadH 20
Structure length168 ft (51.2 m)
Longest span49 ft (15 m)
Deck width49 ft (14.9 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,084 (2024)
Projected traffic14,955 by 2044
Trucks41%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Is 55 S over Main Dtch built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1984.

What condition is Is 55 S over Main Dtch 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 2024.

How much traffic does Is 55 S over Main Dtch carry?

About 8,084 vehicles per day (2024 count), of which roughly 41% are trucks.

How long is Is 55 S over Main Dtch?

The structure is 168 ft (51.2 m) long with a longest span of 49 ft (15 m) and a deck 49 ft wide.

Who owns Is 55 S over Main Dtch?

It is owned by the State Highway Agency.