US Bridges

Rt M S over Turnback CR

Fair

Lawrence County, Missouri · S 1 T 29 N R 26 W · Structure no. 9343

Built
1939
86 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
25 ft
2 main spans
Daily traffic
221
2024 count
Owner
State
State Highway Agency

About this bridge

Rt M S over Turnback CR is a concrete continuous culvert carrying Rt M S over Turnback CR in Lawrence County, Missouri. It was built in 1939, so it is 86 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 221 vehicles a day, roughly 11% of them trucks, projected to reach 320 by 2044. The structure is 25 ft (7.5 m) long and 39 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

Location

Open in Google Maps
CarriesRt M S
CrossesTurnback CR
LocationS 1 T 29 N R 26 W
RouteState Highway 0M
CountyLawrence County
StateMissouri
Coordinates37.26404, -93.71321
Functional classRural Major Collector

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 inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.5 US tons
Inventory rating37.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans2
Design loadH 10
Structure length25 ft (7.5 m)
Longest span12 ft (3.7 m)
Deck width39 ft (12 m)
Roadway width37 ft (11.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic221 (2024)
Projected traffic320 by 2044
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed19.9 mi (32 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rt M S over Turnback CR built?

It was built in 1939, making it 86 years old in 2025.

What condition is Rt M S over Turnback CR 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 April 2023.

How much traffic does Rt M S over Turnback CR carry?

About 221 vehicles per day (2024 count), of which roughly 11% are trucks.

How long is Rt M S over Turnback CR?

The structure is 25 ft (7.5 m) long with a longest span of 12 ft (3.7 m) and a deck 39 ft wide.

Who owns Rt M S over Turnback CR?

It is owned by the State Highway Agency.