US Bridges

S.H. 34 over Gilbert Creek

Fair

Harper County, Oklahoma · 7.5 MI N Woodward CO · Structure no. 131890000000000

Built
1954
71 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
45 ft
3 main spans
Daily traffic
410
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 34 over Gilbert Creek is a concrete culvert carrying S.H. 34 over Gilbert Creek in Harper County, Oklahoma. It was built in 1954, so it is 71 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 410 vehicles a day, roughly 16% of them trucks, projected to reach 656 by 2042. The structure is 45 ft (13.7 m) long and 63 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesS.H. 34
CrossesGilbert Creek
Location7.5 MI N Woodward CO
RouteState Highway 34
CountyHarper County
StateOklahoma
Coordinates36.69512, -99.36722
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100 US tons
Inventory rating95.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length45 ft (13.7 m)
Longest span10 ft (3 m)
Deck width63 ft (19.2 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic410 (2022)
Projected traffic656 by 2042
Trucks16%
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

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. 34 over Gilbert Creek built?

It was built in 1954, making it 71 years old in 2025.

What condition is S.H. 34 over Gilbert 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 July 2024.

How much traffic does S.H. 34 over Gilbert Creek carry?

About 410 vehicles per day (2022 count), of which roughly 16% are trucks.

How long is S.H. 34 over Gilbert Creek?

The structure is 45 ft (13.7 m) long with a longest span of 10 ft (3 m) and a deck 63 ft wide.

Who owns S.H. 34 over Gilbert Creek?

It is owned by the State Highway Agency.