US Bridges

S.H. 30 over Creek

Good

Harmon County, Oklahoma · 6.2 MI N JCT U.S. 62 · Structure no. 187050000000000

Built
1974
51 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
65 ft
3 main spans
Daily traffic
410
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 30 over Creek is a concrete culvert carrying S.H. 30 over Creek in Harmon County, Oklahoma. It was built in 1974, so it is 51 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 410 vehicles a day, roughly 15% of them trucks, projected to reach 656 by 2042. The structure is 65 ft (19.8 m) long and 42 ft wide. If it were closed, the detour would be 60.9 mi (98 km).

Location

Open in Google Maps
CarriesS.H. 30
CrossesCreek
Location6.2 MI N JCT U.S. 62
RouteState Highway 30
CountyHarmon County
StateOklahoma
Coordinates34.77172, -99.9123
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.8 US tons
Inventory rating28.5 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length65 ft (19.8 m)
Longest span17 ft (5.2 m)
Deck width42 ft (12.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2022)
Projected traffic656 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed60.9 mi (98 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. 30 over Creek built?

It was built in 1974, making it 51 years old in 2025.

What condition is S.H. 30 over 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 October 2023.

How much traffic does S.H. 30 over Creek carry?

About 410 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 30 over Creek?

The structure is 65 ft (19.8 m) long with a longest span of 17 ft (5.2 m) and a deck 42 ft wide.

Who owns S.H. 30 over Creek?

It is owned by the State Highway Agency.