US Bridges

FAU 8320(E. 21 St. over Tupelo Creek

Fair

Tulsa County, Oklahoma · 12000 E 21st ST · Structure no. 188410000000000

Built
1975
50 years old
Condition
Fair
inspected May 2024
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
2,350
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 8320(E. 21 St. over Tupelo Creek is a concrete culvert carrying FAU 8320(E. 21 St. over Tupelo Creek in Tulsa County, Oklahoma. It was built in 1975, so it is 50 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 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 2,350 vehicles a day, roughly 5% of them trucks, projected to reach 3,760 by 2042. The structure is 25 ft (7.5 m) long and 120 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

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CarriesFAU 8320(E. 21 St.
CrossesTupelo Creek
Location12000 E 21st ST
RouteCity Street 8320
CountyTulsa County
StateOklahoma
Coordinates36.13325, -95.84391
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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.5 m)
Longest span10 ft (3 m)
Deck width120 ft (36.6 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,350 (2022)
Projected traffic3,760 by 2042
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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 8320(E. 21 St. over Tupelo Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is FAU 8320(E. 21 St. 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 8320(E. 21 St. over Tupelo Creek carry?

About 2,350 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is FAU 8320(E. 21 St. over Tupelo Creek?

The structure is 25 ft (7.5 m) long with a longest span of 10 ft (3 m) and a deck 120 ft wide.

Who owns FAU 8320(E. 21 St. over Tupelo Creek?

It is owned by the City or Municipal Highway Agency.