US Bridges

N2920 over Hackberry Creek

Fair

Garfield County, Oklahoma · .5S 5.5E 1.4S of Waukomis · Structure no. 282490000000000

Built
2006
19 years old
Condition
Fair
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
155 ft
3 main spans
Daily traffic
50
2022 count
Owner
County
County Highway Agency

About this bridge

N2920 over Hackberry Creek is a prestressed concrete tee beam carrying N2920 over Hackberry Creek in Garfield County, Oklahoma. It was built in 2006, so it is 19 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 50 vehicles a day, roughly 10% of them trucks, projected to reach 80 by 2042. The structure is 155 ft (47.2 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN2920
CrossesHackberry Creek
Location.5S 5.5E 1.4S of Waukomis
RouteCounty Highway N2920
CountyGarfield County
StateOklahoma
Coordinates36.25391, -97.80062
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57 US tons
Inventory rating34 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length155 ft (47.2 m)
Longest span55 ft (16.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2022)
Projected traffic80 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$903,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N2920 over Hackberry Creek built?

It was built in 2006, making it 19 years old in 2025.

What condition is N2920 over Hackberry 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 July 2023.

How much traffic does N2920 over Hackberry Creek carry?

About 50 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N2920 over Hackberry Creek?

The structure is 155 ft (47.2 m) long with a longest span of 55 ft (16.8 m) and a deck 28 ft wide.

Who owns N2920 over Hackberry Creek?

It is owned by the County Highway Agency.