US Bridges

N4020(GARNETT Rd. over Creek

Fair

Tulsa County, Oklahoma · .8 S of 71st ST · Structure no. 281400000000000

Built
2005
20 years old
Condition
Fair
inspected November 2023
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
17,863
2024 count
Owner
County
County Highway Agency

About this bridge

N4020(GARNETT Rd. over Creek is a concrete culvert carrying N4020(GARNETT Rd. over Creek 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 17,863 vehicles a day, roughly 5% of them trucks, projected to reach 28,580 by 2044. The structure is 24 ft (7.4 m) long and 82 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN4020(GARNETT Rd.
CrossesCreek
Location.8 S of 71st ST
RouteCounty Highway N4020
CountyTulsa County
StateOklahoma
Coordinates36.04858, -95.85114
Functional classUrban Minor Arterial

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span10 ft (3 m)
Deck width82 ft (25 m)
Roadway width80 ft (24.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic17,863 (2024)
Projected traffic28,580 by 2044
Trucks5%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.2 million
NavigationNo navigation control on waterway

Frequently asked questions

When was N4020(GARNETT Rd. over Creek built?

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

What condition is N4020(GARNETT Rd. 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 November 2023.

How much traffic does N4020(GARNETT Rd. over Creek carry?

About 17,863 vehicles per day (2024 count), of which roughly 5% are trucks.

How long is N4020(GARNETT Rd. over Creek?

The structure is 24 ft (7.4 m) long with a longest span of 10 ft (3 m) and a deck 82 ft wide.

Who owns N4020(GARNETT Rd. over Creek?

It is owned by the County Highway Agency.