US Bridges

N3020 over Creek

Fair

Garfield County, Oklahoma · 2W 4.9N of US64/SH74 · Structure no. 270310000000000

Built
2002
23 years old
Condition
Fair
inspected September 2024
Type
Culvert
Steel
Length
22 ft
2 main spans
Daily traffic
24
2022 count
Owner
County
County Highway Agency

About this bridge

N3020 over Creek is a steel culvert carrying N3020 over Creek in Garfield County, Oklahoma. It was built in 2002, so it is 23 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 24 vehicles a day, roughly 10% of them trucks, projected to reach 38 by 2042. The structure is 22 ft (6.8 m) long and 38 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN3020
CrossesCreek
Location2W 4.9N of US64/SH74
RouteCounty Highway N3020
Coordinates36.46806, -97.62222
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
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
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans2
Design loadH 20
Structure length22 ft (6.8 m)
Longest span9 ft (2.7 m)
Deck width38 ft (11.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2022)
Projected traffic38 by 2042
Trucks10%
Lanes on structure2
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$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N3020 over Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is N3020 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 September 2024.

How much traffic does N3020 over Creek carry?

About 24 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N3020 over Creek?

The structure is 22 ft (6.8 m) long with a longest span of 9 ft (2.7 m) and a deck 38 ft wide.

Who owns N3020 over Creek?

It is owned by the County Highway Agency.