US Bridges

N4020 (garnett Rd) over Ranch Creek Trib.

Fair

Tulsa County, Oklahoma · .2S of 96th · Structure no. 303050000000000

Built
2005
20 years old
Condition
Fair
inspected July 2023
Type
Culvert
Concrete
Length
21 ft
3 main spans
Daily traffic
1,000
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

N4020 (garnett Rd) over Ranch Creek Trib. is a concrete culvert carrying N4020 (garnett Rd) over Ranch Creek Trib. in Tulsa County, Oklahoma. It was built in 2005, so it is 20 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 1,000 vehicles a day, roughly 5% of them trucks, projected to reach 1,600 by 2042. The structure is 21 ft (6.4 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesN4020 (garnett Rd)
CrossesRanch Creek Trib.
Location.2S of 96th
RouteCity Street N4020
CountyTulsa County
StateOklahoma
Coordinates36.29139, -95.84833
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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 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 adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span8 ft (2.4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2022)
Projected traffic1,600 by 2042
Trucks5%
Lanes on structure5
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 proposedNone recorded
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N4020 (garnett Rd) over Ranch Creek Trib. built?

It was built in 2005, making it 20 years old in 2025.

What condition is N4020 (garnett Rd) over Ranch Creek Trib. 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 July 2023.

How much traffic does N4020 (garnett Rd) over Ranch Creek Trib. carry?

About 1,000 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is N4020 (garnett Rd) over Ranch Creek Trib.?

The structure is 21 ft (6.4 m) long with a longest span of 8 ft (2.4 m).

Who owns N4020 (garnett Rd) over Ranch Creek Trib.?

It is owned by the City or Municipal Highway Agency.