US Bridges

0430C over Kiowa Creek

FairPosted for load

Beaver County, Oklahoma · 3.S 5.9W of Slapout · Structure no. 185990000000000

Built
1973
52 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
360 ft
12 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

0430C over Kiowa Creek is a steel continuous stringer/multi-beam or girder carrying 0430C over Kiowa Creek in Beaver County, Oklahoma. It was built in 1973, so it is 52 years old, older than the Oklahoma average of 47.8 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 100 vehicles a day, roughly 15% of them trucks, projected to reach 160 by 2042. The structure is 360 ft (109.7 m) long and 24 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Carries0430C
CrossesKiowa Creek
Location3.S 5.9W of Slapout
RouteCounty Highway 430C
Coordinates36.57259, -100.21541
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 12 months
Operating statusPosted for load 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

MaterialSteel Continuous
DeckCorrugated steel
Main spans12
Design loadUnknown
Structure length360 ft (109.7 m)
Longest span30 ft (9.1 m)
Deck width24 ft (7.3 m)
Roadway width23 ft (7.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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$983,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 0430C over Kiowa Creek built?

It was built in 1973, making it 52 years old in 2025.

What condition is 0430C over Kiowa Creek 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 2024.

How much traffic does 0430C over Kiowa Creek carry?

About 100 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 0430C over Kiowa Creek?

The structure is 360 ft (109.7 m) long with a longest span of 30 ft (9.1 m) and a deck 24 ft wide.

Who owns 0430C over Kiowa Creek?

It is owned by the County Highway Agency.