US Bridges

Turnbo RD over Turnbo CR

Good

Webster County, Missouri · S 20 T 30 N R 18 W · Structure no. 30944

Built
2001
24 years old
Condition
Good
inspected April 2023
Type
Slab
Concrete Continuous
Length
55 ft
3 main spans
Daily traffic
350
2023 count
Owner
County
County Highway Agency

About this bridge

Turnbo RD over Turnbo CR is a concrete continuous slab carrying Turnbo RD over Turnbo CR in Webster County, Missouri. It was built in 2001, so it is 24 years old, younger than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 350 vehicles a day, roughly 10% of them trucks, projected to reach 578 by 2043. The structure is 55 ft (16.8 m) long and 26 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesTurnbo RD
CrossesTurnbo CR
LocationS 20 T 30 N R 18 W
RouteCounty Highway 229
Coordinates37.3085, -92.93581
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating29.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length55 ft (16.8 m)
Longest span16 ft (4.9 m)
Deck width26 ft (7.9 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2023)
Projected traffic578 by 2043
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Turnbo RD over Turnbo CR built?

It was built in 2001, making it 24 years old in 2025.

What condition is Turnbo RD over Turnbo CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Turnbo RD over Turnbo CR carry?

About 350 vehicles per day (2023 count), of which roughly 10% are trucks.

How long is Turnbo RD over Turnbo CR?

The structure is 55 ft (16.8 m) long with a longest span of 16 ft (4.9 m) and a deck 26 ft wide.

Who owns Turnbo RD over Turnbo CR?

It is owned by the County Highway Agency.