US Bridges

7430C over Creek

PoorPosted for load

Washington County, Oklahoma · 15S.&4.9E.OF JCT US75&60 · Structure no. 086700000000000

Built
1940
85 years old
Condition
Poor
inspected November 2024
Type
Slab
Concrete
Length
35 ft
3 main spans
Daily traffic
219
2022 count
Owner
County
County Highway Agency

About this bridge

7430C over Creek is a concrete slab carrying 7430C over Creek in Washington County, Oklahoma. It was built in 1940, so it is 85 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 219 vehicles a day, roughly 15% of them trucks, projected to reach 350 by 2042. The structure is 35 ft (10.7 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Carries7430C
CrossesCreek
Location15S.&4.9E.OF JCT US75&60
RouteCounty Highway 7430C
Coordinates36.5107, -95.85597
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating22 US tons
Inventory rating12.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span10 ft (3 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic219 (2022)
Projected traffic350 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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$281,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 7430C over Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is 7430C over Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.

How much traffic does 7430C over Creek carry?

About 219 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 7430C over Creek?

The structure is 35 ft (10.7 m) long with a longest span of 10 ft (3 m) and a deck 28 ft wide.

Who owns 7430C over Creek?

It is owned by the County Highway Agency.