US Bridges

N3050 over Dibble Creek

Fair

McClain County, Oklahoma · .5E 2.9S of Cole · Structure no. 216930000000000

Built
1987
38 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
198 ft
3 main spans
Daily traffic
350
2022 count
Owner
County
County Highway Agency

About this bridge

N3050 over Dibble Creek is a prestressed concrete stringer/multi-beam or girder carrying N3050 over Dibble Creek in McClain County, Oklahoma. It was built in 1987, so it is 38 years old, younger 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 350 vehicles a day, roughly 10% of them trucks, projected to reach 560 by 2042. The structure is 198 ft (60.4 m) long and 29 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesN3050
CrossesDibble Creek
Location.5E 2.9S of Cole
RouteCounty Highway N3050
CountyMcClain County
StateOklahoma
Coordinates35.05898, -97.56467
Functional classRural Local

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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.3 US tons
Inventory rating35.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length198 ft (60.4 m)
Longest span75 ft (22.9 m)
Deck width29 ft (8.7 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2022)
Projected traffic560 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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$712,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3050 over Dibble Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is N3050 over Dibble 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 May 2023.

How much traffic does N3050 over Dibble Creek carry?

About 350 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N3050 over Dibble Creek?

The structure is 198 ft (60.4 m) long with a longest span of 75 ft (22.9 m) and a deck 29 ft wide.

Who owns N3050 over Dibble Creek?

It is owned by the County Highway Agency.