US Bridges

County RD 360 over Yantz CR

FairPosted for load

Bollinger County, Missouri · S 1 T 32 N R 9 E · Structure no. 14119

Built
1954
71 years old, rebuilt 2001
Condition
Fair
inspected November 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
30 ft
3 main spans
Daily traffic
35
2024 count
Owner
County
County Highway Agency

About this bridge

County RD 360 over Yantz CR is a wood or timber stringer/multi-beam or girder carrying County RD 360 over Yantz CR in Bollinger County, Missouri. It was built in 1954 and reconstructed in 2001, so it is 71 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. Its operating status is: posted for load restriction.

It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 46 by 2044. The structure is 30 ft (9.1 m) long and 15 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesCounty RD 360
CrossesYantz CR
LocationS 1 T 32 N R 9 E
RouteCounty Highway 57
CountyBollinger County
StateMissouri
Coordinates37.47814, -89.99646
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating16.9 US tons
Inventory rating11.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckConcrete, cast-in-place
Main spans3
Design loadOther
Structure length30 ft (9.1 m)
Longest span9 ft (2.7 m)
Deck width15 ft (4.6 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic35 (2024)
Projected traffic46 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 County RD 360 over Yantz CR built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2001.

What condition is County RD 360 over Yantz 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 November 2023.

How much traffic does County RD 360 over Yantz CR carry?

About 35 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is County RD 360 over Yantz CR?

The structure is 30 ft (9.1 m) long with a longest span of 9 ft (2.7 m) and a deck 15 ft wide.

Who owns County RD 360 over Yantz CR?

It is owned by the County Highway Agency.