US Bridges

N2830 over Creek

Fair

Grant County, Oklahoma · 4.7E 2.6N of Nash · Structure no. 023730000000000

Built
1930
95 years old
Condition
Fair
inspected April 2024
Type
Culvert
Concrete
Length
26 ft
3 main spans
Daily traffic
234
2022 count
Owner
County
County Highway Agency

About this bridge

N2830 over Creek is a concrete culvert carrying N2830 over Creek in Grant County, Oklahoma. It was built in 1930, so it is 95 years old, older 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 234 vehicles a day, roughly 15% of them trucks, projected to reach 374 by 2042. The structure is 26 ft (7.9 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN2830
CrossesCreek
Location4.7E 2.6N of Nash
RouteCounty Highway N2830
CountyGrant County
StateOklahoma
Coordinates36.70363, -97.96581
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum 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 loadUnknown
Structure length26 ft (7.9 m)
Longest span8 ft (2.4 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic234 (2022)
Projected traffic374 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 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 N2830 over Creek built?

It was built in 1930, making it 95 years old in 2025.

What condition is N2830 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 April 2024.

How much traffic does N2830 over Creek carry?

About 234 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N2830 over Creek?

The structure is 26 ft (7.9 m) long with a longest span of 8 ft (2.4 m) and a deck 26 ft wide.

Who owns N2830 over Creek?

It is owned by the County Highway Agency.