US Bridges

Rt K S over Billys CR

Good

Adair County, Missouri · S 21 T 62 N R 16 W · Structure no. 7070

Built
1958
67 years old, rebuilt 2014
Condition
Good
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
117 ft
3 main spans
Daily traffic
68
2024 count
Owner
State
State Highway Agency

About this bridge

Rt K S over Billys CR is a steel stringer/multi-beam or girder carrying Rt K S over Billys CR in Adair County, Missouri. It was built in 1958 and reconstructed in 2014, so it is 67 years old, older 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 68 vehicles a day, roughly 15% of them trucks, projected to reach 85 by 2044. The structure is 117 ft (35.7 m) long and 25 ft wide. If it were closed, the detour would be 19.9 mi (32 km).

CarriesRt K S
CrossesBillys CR
LocationS 21 T 62 N R 16 W
RouteState Highway 0K
Coordinates40.16785, -92.69451
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating48.6 US tons
Inventory rating28.8 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadH 10
Structure length117 ft (35.7 m)
Longest span49 ft (14.9 m)
Deck width25 ft (7.5 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic68 (2024)
Projected traffic85 by 2044
Trucks15%
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 K S over Billys CR built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2014.

What condition is Rt K S over Billys 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 December 2023.

How much traffic does Rt K S over Billys CR carry?

About 68 vehicles per day (2024 count), of which roughly 15% are trucks.

How long is Rt K S over Billys CR?

The structure is 117 ft (35.7 m) long with a longest span of 49 ft (14.9 m) and a deck 25 ft wide.

Who owns Rt K S over Billys CR?

It is owned by the State Highway Agency.