US Bridges

S.H. 18 over Tate Creek

Good

Osage County, Oklahoma · 8.0 Mi.N.Pawnee Cl · Structure no. 184470000000000

Built
1973
52 years old
Condition
Good
inspected August 2023
Type
Culvert
Concrete
Length
48 ft
3 main spans
Daily traffic
1,300
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 18 over Tate Creek is a concrete culvert carrying S.H. 18 over Tate Creek in Osage 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 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 1,300 vehicles a day, roughly 16% of them trucks, projected to reach 2,080 by 2042. The structure is 48 ft (14.6 m) long. If it were closed, the detour would be 39.8 mi (64 km).

CarriesS.H. 18
CrossesTate Creek
Location8.0 Mi.N.Pawnee Cl
RouteState Highway 18
Coordinates36.61311, -96.69056
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.8 US tons
Inventory rating33.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2022)
Projected traffic2,080 by 2042
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$644,000
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 18 over Tate Creek built?

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

What condition is S.H. 18 over Tate Creek 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 August 2023.

How much traffic does S.H. 18 over Tate Creek carry?

About 1,300 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is S.H. 18 over Tate Creek?

The structure is 48 ft (14.6 m) long with a longest span of 14 ft (4.3 m).

Who owns S.H. 18 over Tate Creek?

It is owned by the State Highway Agency.