US Bridges

Is 155 S over County RD Mississippi

Fair

Pemiscot County, Missouri · S 11 T 17 N R 13 E · Structure no. 1396

Built
1975
50 years old, rebuilt 1987
Condition
Fair
inspected March 2023
Type
Truss - Thru
Steel Continuous
Length
7,102 ft
2 main spans
Daily traffic
13,521
2024 count
Owner
State
State Highway Agency

About this bridge

Is 155 S over County RD Mississippi is a steel continuous truss - thru carrying Is 155 S over County RD Mississippi in Pemiscot County, Missouri. It was built in 1975 and reconstructed in 1987, so it is 50 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 13,521 vehicles a day, roughly 35% of them trucks, projected to reach 25,014 by 2044. The structure is 7,102 ft (2,164.7 m) long and 81 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesIs 155 S
CrossesCounty RD Mississippi
LocationS 11 T 17 N R 13 E
RouteInterstate 155
CountyPemiscot County
StateMissouri
Coordinates36.11839, -89.61507
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.6 US tons
Inventory rating31.7 US tons

Structure

Structure typeTruss - Thru
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2 (+57 approach)
Design loadHS 20 + Mod
Structure length7,102 ft (2,164.7 m)
Longest span920 ft (280.4 m)
Deck width81 ft (24.6 m)
Roadway width78 ft (23.8 m)
Vertical clearance over deck17 ft (5.3 m)

Traffic and service

Average daily traffic13,521 (2024)
Projected traffic25,014 by 2044
Trucks35%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway and waterway
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—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Is 155 S over County RD Mississippi built?

It was built in 1975, making it 50 years old in 2025. It was reconstructed in 1987.

What condition is Is 155 S over County RD Mississippi 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 March 2023.

How much traffic does Is 155 S over County RD Mississippi carry?

About 13,521 vehicles per day (2024 count), of which roughly 35% are trucks.

How long is Is 155 S over County RD Mississippi?

The structure is 7,102 ft (2,164.7 m) long with a longest span of 920 ft (280.4 m) and a deck 81 ft wide.

Who owns Is 155 S over County RD Mississippi?

It is owned by the State Highway Agency.