US Bridges

FAU 8421(S Mingo over Alsuma Creek

Good

Tulsa County, Oklahoma · 5100 S Mingo · Structure no. 227570000000000

Built
1991
34 years old
Condition
Good
inspected May 2024
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
16,733
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 8421(S Mingo over Alsuma Creek is a concrete culvert carrying FAU 8421(S Mingo over Alsuma Creek in Tulsa County, Oklahoma. It was built in 1991, so it is 34 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 16,733 vehicles a day, roughly 5% of them trucks, projected to reach 26,773 by 2042. The structure is 40 ft (12.2 m) long. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesFAU 8421(S Mingo
CrossesAlsuma Creek
Location5100 S Mingo
RouteCity Street 8421
CountyTulsa County
StateOklahoma
Coordinates36.08888, -95.86876
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than 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 length40 ft (12.2 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,733 (2022)
Projected traffic26,773 by 2042
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Alsuma Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is FAU 8421(S Mingo over Alsuma Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2024.

How much traffic does FAU 8421(S Mingo over Alsuma Creek carry?

About 16,733 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is FAU 8421(S Mingo over Alsuma Creek?

The structure is 40 ft (12.2 m) long with a longest span of 14 ft (4.3 m).

Who owns FAU 8421(S Mingo over Alsuma Creek?

It is owned by the City or Municipal Highway Agency.