US Bridges

County RD Z-850 over Turkey CR

Fair

Ozark County, Missouri · S 17 T 23 N R 15 W · Structure no. 16935

Built
1939
86 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
52 ft
2 main spans
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

County RD Z-850 over Turkey CR is a concrete slab carrying County RD Z-850 over Turkey CR in Ozark 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 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 20 vehicles a day, roughly 10% of them trucks, projected to reach 30 by 2044. The structure is 52 ft (15.8 m) long and 12 ft wide. If it were closed, the detour would be 11.2 mi (18 km).

Location

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CarriesCounty RD Z-850
CrossesTurkey CR
LocationS 17 T 23 N R 15 W
RouteCounty Highway 137
CountyOzark County
StateMissouri
Coordinates36.66946, -92.6331
Functional classRural Local

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.
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 inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating54.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadOther
Structure length52 ft (15.8 m)
Longest span26 ft (7.9 m)
Deck width12 ft (3.7 m)
Roadway width11 ft (3.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic30 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.2 mi (18 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$416,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was County RD Z-850 over Turkey CR built?

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

What condition is County RD Z-850 over Turkey 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 October 2023.

How much traffic does County RD Z-850 over Turkey CR carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD Z-850 over Turkey CR?

The structure is 52 ft (15.8 m) long with a longest span of 26 ft (7.9 m) and a deck 12 ft wide.

Who owns County RD Z-850 over Turkey CR?

It is owned by the County Highway Agency.