US Bridges

FAU 8421 (s Mingo over Tupelo Creek

Fair

Tulsa County, Oklahoma · 400 S Mingo · Structure no. 102640000000000

Built
1945
80 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
6,625
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 8421 (s Mingo over Tupelo Creek is a concrete culvert carrying FAU 8421 (s Mingo over Tupelo Creek in Tulsa County, Oklahoma. It was built in 1945, so it is 80 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.

It carries about 6,625 vehicles a day, roughly 5% of them trucks, projected to reach 10,600 by 2042. The structure is 44 ft (13.4 m) long and 40 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFAU 8421 (s Mingo
CrossesTupelo Creek
Location400 S Mingo
RouteCity Street 8421
CountyTulsa County
StateOklahoma
Coordinates36.15409, -95.86887
Functional classUrban 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being 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 alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span14 ft (4.3 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,625 (2022)
Projected traffic10,600 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 8421 (s Mingo over Tupelo Creek built?

It was built in 1945, making it 80 years old in 2025.

What condition is FAU 8421 (s Mingo over Tupelo 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 2024.

How much traffic does FAU 8421 (s Mingo over Tupelo Creek carry?

About 6,625 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is FAU 8421 (s Mingo over Tupelo Creek?

The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.3 m) and a deck 40 ft wide.

Who owns FAU 8421 (s Mingo over Tupelo Creek?

It is owned by the City or Municipal Highway Agency.