US Bridges

7420C Major over Creek

FairPosted for load

Washington County, Oklahoma · 2W 4.3S of US 75 · Structure no. 008280000000000

Built
1920
105 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
29 ft
1 main span
Daily traffic
1,245
2022 count
Owner
County
County Highway Agency

About this bridge

7420C Major over Creek is a steel stringer/multi-beam or girder carrying 7420C Major over Creek in Washington County, Oklahoma. It was built in 1920, so it is 105 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. Its operating status is: posted for load restriction.

It carries about 1,245 vehicles a day, roughly 15% of them trucks, projected to reach 1,992 by 2042. The structure is 29 ft (8.8 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
Carries7420C Major
CrossesCreek
Location2W 4.3S of US 75
RouteCounty Highway 7411
CountyWashington County
StateOklahoma
Coordinates36.66122, -95.97143
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25.5 US tons
Inventory rating15.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span25 ft (7.6 m)
Deck width23 ft (7.1 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,245 (2022)
Projected traffic1,992 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$241,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 7420C Major over Creek built?

It was built in 1920, making it 105 years old in 2025.

What condition is 7420C Major over 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 2024.

How much traffic does 7420C Major over Creek carry?

About 1,245 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 7420C Major over Creek?

The structure is 29 ft (8.8 m) long with a longest span of 25 ft (7.6 m) and a deck 23 ft wide.

Who owns 7420C Major over Creek?

It is owned by the County Highway Agency.