US Bridges

7214C(56th St. N. over Mingo Creek WB

FairPosted for load

Tulsa County, Oklahoma · 56 ST N .8 MI E of Mingo · Structure no. 045710000000000

Built
1962
63 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
182 ft
3 main spans
Daily traffic
1,242
2024 count
Owner
County
County Highway Agency

About this bridge

7214C(56th St. N. over Mingo Creek WB is a steel stringer/multi-beam or girder carrying 7214C(56th St. N. over Mingo Creek WB in Tulsa County, Oklahoma. It was built in 1962, so it is 63 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 1,242 vehicles a day, roughly 10% of them trucks, projected to reach 1,988 by 2044. The structure is 182 ft (55.5 m) long and 31 ft wide.

Carries7214C(56th St. N.
CrossesMingo Creek WB
Location56 ST N .8 MI E of Mingo
RouteCounty Highway 7214C
Coordinates36.23518, -95.85166
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating45 US tons
Inventory rating27 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length182 ft (55.5 m)
Longest span61 ft (18.6 m)
Deck width31 ft (9.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,242 (2024)
Projected traffic1,988 by 2044
Trucks10%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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$680,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 7214C(56th St. N. over Mingo Creek WB built?

It was built in 1962, making it 63 years old in 2025.

What condition is 7214C(56th St. N. over Mingo Creek WB 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 August 2023.

How much traffic does 7214C(56th St. N. over Mingo Creek WB carry?

About 1,242 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is 7214C(56th St. N. over Mingo Creek WB?

The structure is 182 ft (55.5 m) long with a longest span of 61 ft (18.6 m) and a deck 31 ft wide.

Who owns 7214C(56th St. N. over Mingo Creek WB?

It is owned by the County Highway Agency.