US Bridges

S.H. 30 over East Fork Sandy Creek

Fair

Harmon County, Oklahoma · 3.4 MI N. Jct. U.S. 62 · Structure no. 187220000000000

Built
1974
51 years old
Condition
Fair
inspected October 2023
Type
Slab
Concrete
Length
125 ft
5 main spans
Daily traffic
410
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 30 over East Fork Sandy Creek is a concrete slab carrying S.H. 30 over East Fork Sandy 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 fair condition with a lowest component rating of 5 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 15% of them trucks, projected to reach 656 by 2042. The structure is 125 ft (38.1 m) long and 35 ft wide. If it were closed, the detour would be 60.9 mi (98 km).

Location

Open in Google Maps
CarriesS.H. 30
CrossesEast Fork Sandy Creek
Location3.4 MI N. Jct. U.S. 62
RouteState Highway 30
CountyHarmon County
StateOklahoma
Coordinates34.73093, -99.91205
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating69 US tons
Inventory rating41 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length125 ft (38.1 m)
Longest span25 ft (7.6 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was S.H. 30 over East Fork Sandy Creek built?

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

What condition is S.H. 30 over East Fork Sandy 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 October 2023.

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

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

How long is S.H. 30 over East Fork Sandy Creek?

The structure is 125 ft (38.1 m) long with a longest span of 25 ft (7.6 m) and a deck 35 ft wide.

Who owns S.H. 30 over East Fork Sandy Creek?

It is owned by the State Highway Agency.