US Bridges

N3973 over Fred Creek

Fair

Tulsa County, Oklahoma · .3E .2S of 71st/HARVARD · Structure no. 323570000000000

Built
2013
12 years old
Condition
Fair
inspected February 2023
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
100
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

N3973 over Fred Creek is a concrete culvert carrying N3973 over Fred Creek in Tulsa County, Oklahoma. It was built in 2013, so it is 12 years old, younger 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 32 ft (9.8 m) long. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesN3973
CrossesFred Creek
Location.3E .2S of 71st/HARVARD
RouteCity Street N3973
CountyTulsa County
StateOklahoma
Coordinates36.05926, -95.93544
Functional classUrban Local

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 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks5%
Lanes on structure2
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost$225,000
NavigationNot applicable (no waterway)

Frequently asked questions

When was N3973 over Fred Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is N3973 over Fred 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 N3973 over Fred Creek carry?

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

How long is N3973 over Fred Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m).

Who owns N3973 over Fred Creek?

It is owned by the City or Municipal Highway Agency.