US Bridges

N4020( Garnett Rd) over Creek

Good

Tulsa County, Oklahoma · .2S of 191st South · Structure no. 274550000000000

Built
2003
22 years old
Condition
Good
inspected November 2023
Type
Culvert
Concrete
Length
25 ft
2 main spans
Daily traffic
111
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 2003, so it is 22 years old, younger than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 111 vehicles a day, roughly 10% of them trucks, projected to reach 178 by 2044. The structure is 25 ft (7.6 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesN4020( Garnett Rd)
CrossesCreek
Location.2S of 191st South
RouteCounty Highway N4020
Coordinates35.88311, -95.85503
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating47 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic111 (2024)
Projected traffic178 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N4020( Garnett Rd) over Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is N4020( Garnett Rd) over Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in November 2023.

How much traffic does N4020( Garnett Rd) over Creek carry?

About 111 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is N4020( Garnett Rd) over Creek?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 25 ft wide.

Who owns N4020( Garnett Rd) over Creek?

It is owned by the County Highway Agency.