US Bridges

N3960 over Creek

Fair

Tulsa County, Oklahoma · N Lewis .6MI. S 186 St.N · Structure no. 073950000000000

Built
1940
85 years old
Condition
Fair
inspected August 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
170
2024 count
Owner
County
County Highway Agency

About this bridge

N3960 over Creek is a concrete culvert carrying N3960 over Creek in Tulsa County, Oklahoma. It was built in 1940, 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 170 vehicles a day, roughly 10% of them trucks, projected to reach 271 by 2044. The structure is 23 ft (7 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesN3960
CrossesCreek
LocationN Lewis .6MI. S 186 St.N
RouteCounty Highway N3960
CountyTulsa County
StateOklahoma
Coordinates36.41494, -95.95603
Functional classRural 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 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 inspectionAugust 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 alignment7: Better than present minimum criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width25 ft (7.7 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic170 (2024)
Projected traffic271 by 2044
Trucks10%
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

OwnerCounty Highway Agency
Maintained byCounty 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 N3960 over Creek built?

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

What condition is N3960 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 August 2023.

How much traffic does N3960 over Creek carry?

About 170 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is N3960 over Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m) and a deck 25 ft wide.

Who owns N3960 over Creek?

It is owned by the County Highway Agency.