US Bridges

FAU 8120 (121 ST S over Creek

PoorPosted for load

Tulsa County, Oklahoma · 0.1 MI E of 177 E Ave · Structure no. 104660000000000

Built
1946
79 years old
Condition
Poor
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
32 ft
1 main span
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 steel stringer/multi-beam or girder carrying FAU 8120 (121 ST S over Creek in Tulsa County, Oklahoma. It was built in 1946, so it is 79 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 2,627 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2042. The structure is 32 ft (9.8 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesFAU 8120 (121 ST S
CrossesCreek
Location0.1 MI E of 177 E Ave
RouteCounty Highway 8120
CountyTulsa County
StateOklahoma
Coordinates35.98835, -95.77691
Functional classUrban Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating17 US tons
Inventory rating10 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span25 ft (7.6 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$276,000
NavigationNo navigation control on waterway

Frequently asked questions

When was FAU 8120 (121 ST S over Creek built?

It was built in 1946, making it 79 years old in 2025.

What condition is FAU 8120 (121 ST S over Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. 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 32 ft (9.8 m) long with a longest span of 25 ft (7.6 m) and a deck 29 ft wide.

Who owns FAU 8120 (121 ST S over Creek?

It is owned by the City or Municipal Highway Agency.