US Bridges

S.H. 30 over Creek

Good

Harmon County, Oklahoma · 0.1 MI N JCT U.S. 62 · Structure no. 188520000000000

Built
1975
50 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
1,200
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 1975, so it is 50 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 1,200 vehicles a day, roughly 15% of them trucks, projected to reach 1,920 by 2042. The structure is 26 ft (7.9 m) long and 56 ft wide. If it were closed, the detour would be 60.9 mi (98 km).

Location

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CarriesS.H. 30
CrossesCreek
Location0.1 MI N JCT U.S. 62
RouteState Highway 30
CountyHarmon County
StateOklahoma
Coordinates34.6832, -99.91214
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 protection7 GoodSome minor problems.
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating28 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width56 ft (17.1 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2022)
Projected traffic1,920 by 2042
Trucks15%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 1975, making it 50 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 1,200 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 30 over Creek?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m) and a deck 56 ft wide.

Who owns S.H. 30 over Creek?

It is owned by the State Highway Agency.