US Bridges

4950C over Wolf Creek

PoorPosted for load

Mayes County, Oklahoma · 1.N & 7.E JCT US69 & SH20 · Structure no. 031330000000000

Built
1960
65 years old
Condition
Poor
inspected April 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
91 ft
2 main spans
Daily traffic
840
2022 count
Owner
County
County Highway Agency

About this bridge

4950C over Wolf Creek is a steel stringer/multi-beam or girder carrying 4950C over Wolf Creek in Mayes County, Oklahoma. It was built in 1960, so it is 65 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 3 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 840 vehicles a day, roughly 15% of them trucks, projected to reach 1,344 by 2042. The structure is 91 ft (27.7 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries4950C
CrossesWolf Creek
Location1.N & 7.E JCT US69 & SH20
RouteCounty Highway 4950C
Coordinates36.32201, -95.19019
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating33.8 US tons
Inventory rating20.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length91 ft (27.7 m)
Longest span41 ft (12.6 m)
Deck width23 ft (7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic840 (2022)
Projected traffic1,344 by 2042
Trucks15%
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

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$483,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 4950C over Wolf Creek built?

It was built in 1960, making it 65 years old in 2025.

What condition is 4950C over Wolf 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 April 2023.

How much traffic does 4950C over Wolf Creek carry?

About 840 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is 4950C over Wolf Creek?

The structure is 91 ft (27.7 m) long with a longest span of 41 ft (12.6 m) and a deck 23 ft wide.

Who owns 4950C over Wolf Creek?

It is owned by the County Highway Agency.