US Bridges

FAU 8120 (121 ST S over Creek

Fair

Tulsa County, Oklahoma · 0.7 MI E of 177 E Ave · Structure no. 080930000000000

Built
1940
85 years old, rebuilt 1985
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
2,627
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

FAU 8120 (121 ST S over Creek is a concrete culvert carrying FAU 8120 (121 ST S over Creek in Tulsa County, Oklahoma. It was built in 1940 and reconstructed in 1985, so it is 85 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 2,627 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2042. The structure is 21 ft (6.4 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesFAU 8120 (121 ST S
CrossesCreek
Location0.7 MI E of 177 E Ave
RouteCounty Highway 8120
CountyTulsa County
StateOklahoma
Coordinates35.98836, -95.76646
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width31 ft (9.4 m)
Roadway width29 ft (8.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,627 (2022)
Projected traffic160 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 8120 (121 ST S over Creek built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1985.

What condition is FAU 8120 (121 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 2023.

How much traffic does FAU 8120 (121 ST S over Creek carry?

About 2,627 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is FAU 8120 (121 ST S over Creek?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 31 ft wide.

Who owns FAU 8120 (121 ST S over Creek?

It is owned by the City or Municipal Highway Agency.