US Bridges

N2930 over Skeleton Creek Trib.

Poor

Garfield County, Oklahoma · 6.4W 5.1N of Douglas · Structure no. 163660000000000

Built
1965
60 years old
Condition
Poor
inspected January 2024
Type
Culvert
Concrete
Length
40 ft
3 main spans
Daily traffic
400
2022 count
Owner
County
County Highway Agency

About this bridge

N2930 over Skeleton Creek Trib. is a concrete culvert carrying N2930 over Skeleton Creek Trib. in Garfield County, Oklahoma. It was built in 1965, so it is 60 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 400 vehicles a day, roughly 15% of them trucks, projected to reach 640 by 2042. The structure is 40 ft (12.2 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN2930
CrossesSkeleton Creek Trib.
Location6.4W 5.1N of Douglas
RouteCounty Highway N2930
CountyGarfield County
StateOklahoma
Coordinates36.33378, -97.7831
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span14 ft (4.3 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic400 (2022)
Projected traffic640 by 2042
Trucks15%
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 proposedWidening of existing bridge without deck rehabilitation
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N2930 over Skeleton Creek Trib. built?

It was built in 1965, making it 60 years old in 2025.

What condition is N2930 over Skeleton Creek Trib. in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in January 2024.

How much traffic does N2930 over Skeleton Creek Trib. carry?

About 400 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N2930 over Skeleton Creek Trib.?

The structure is 40 ft (12.2 m) long with a longest span of 14 ft (4.3 m) and a deck 34 ft wide.

Who owns N2930 over Skeleton Creek Trib.?

It is owned by the County Highway Agency.