US Bridges

FAU 8320 (21 ST S) over Creek

Fair

Tulsa County, Oklahoma · 21 ST .5MI E 65 W Ave · Structure no. 122150000000000

Built
1950
75 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
68 ft
4 main spans
Daily traffic
100
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 8320 (21 ST S) over Creek is a concrete culvert carrying FAU 8320 (21 ST S) over Creek in Tulsa County, Oklahoma. It was built in 1950, so it is 75 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2042. The structure is 68 ft (20.7 m) long and 124 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesFAU 8320 (21 ST S)
CrossesCreek
Location21 ST .5MI E 65 W Ave
RouteCity Street 8320
CountyTulsa County
StateOklahoma
Coordinates36.13338, -96.0548
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 inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than 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 spans4
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span20 ft (6.1 m)
Deck width124 ft (37.8 m)
Roadway width65 ft (19.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks5%
Lanes on structure4
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 8320 (21 ST S) over Creek built?

It was built in 1950, making it 75 years old in 2025.

What condition is FAU 8320 (21 ST S) over 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 February 2024.

How much traffic does FAU 8320 (21 ST S) over Creek carry?

About 100 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is FAU 8320 (21 ST S) over Creek?

The structure is 68 ft (20.7 m) long with a longest span of 20 ft (6.1 m) and a deck 124 ft wide.

Who owns FAU 8320 (21 ST S) over Creek?

It is owned by the City or Municipal Highway Agency.