US Bridges

1820C over Bull Creek

PoorPosted for load

Craig County, Oklahoma · 1.NE of Vinita on Hosp.Rd · Structure no. 090270000000000

Built
1940
85 years old
Condition
Poor
inspected September 2024
Type
Slab
Concrete
Length
48 ft
4 main spans
Daily traffic
1,030
2022 count
Owner
County
County Highway Agency

About this bridge

1820C over Bull Creek is a concrete slab carrying 1820C over Bull Creek in Craig County, Oklahoma. It was built in 1940, so it is 85 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 1,030 vehicles a day, roughly 15% of them trucks, projected to reach 1,648 by 2042. The structure is 48 ft (14.6 m) long and 43 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries1820C
CrossesBull Creek
Location1.NE of Vinita on Hosp.Rd
RouteCounty Highway 1820C
Coordinates36.6559, -95.13527
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating26.9 US tons
Inventory rating16.2 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans4
Design loadUnknown
Structure length48 ft (14.6 m)
Longest span10 ft (3 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,030 (2022)
Projected traffic1,648 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$342,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 1820C over Bull Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is 1820C over Bull Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does 1820C over Bull Creek carry?

About 1,030 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 1820C over Bull Creek?

The structure is 48 ft (14.6 m) long with a longest span of 10 ft (3 m) and a deck 43 ft wide.

Who owns 1820C over Bull Creek?

It is owned by the County Highway Agency.