US Bridges

Mo 153 S over Slu

Poor

Dunklin County, Missouri · S 31 T 20 N R 10 E · Structure no. 5556

Built
1931
94 years old
Condition
Poor
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
33 ft
1 main span
Daily traffic
386
2024 count
Owner
State
State Highway Agency

About this bridge

Mo 153 S over Slu is a steel stringer/multi-beam or girder carrying Mo 153 S over Slu in Dunklin County, Missouri. It was built in 1931, so it is 94 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 386 vehicles a day, roughly 6% of them trucks, projected to reach 540 by 2044. The structure is 33 ft (10.1 m) long and 24 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

Open in Google Maps
CarriesMo 153 S
CrossesSlu
LocationS 31 T 20 N R 10 E
RouteState Highway 153
CountyDunklin County
StateMissouri
Coordinates36.33064, -90.02494
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.7 US tons
Inventory rating19.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length33 ft (10.1 m)
Longest span30 ft (9.1 m)
Deck width24 ft (7.2 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic386 (2024)
Projected traffic540 by 2044
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$437,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Mo 153 S over Slu built?

It was built in 1931, making it 94 years old in 2025.

What condition is Mo 153 S over Slu in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does Mo 153 S over Slu carry?

About 386 vehicles per day (2024 count), of which roughly 6% are trucks.

How long is Mo 153 S over Slu?

The structure is 33 ft (10.1 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.

Who owns Mo 153 S over Slu?

It is owned by the State Highway Agency.