US Bridges

N2830 over Creek

Good

Grant County, Oklahoma · 5E .6 N of Nash · Structure no. 238730000000000

Built
1993
32 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Concrete
Length
130 ft
3 main spans
Daily traffic
234
2022 count
Owner
County
County Highway Agency

About this bridge

N2830 over Creek is a concrete stringer/multi-beam or girder carrying N2830 over Creek in Grant County, Oklahoma. It was built in 1993, so it is 32 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 234 vehicles a day, roughly 15% of them trucks, projected to reach 374 by 2042. The structure is 130 ft (39.5 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN2830
CrossesCreek
Location5E .6 N of Nash
RouteCounty Highway N2830
Coordinates36.67491, -97.96578
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
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

MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length130 ft (39.5 m)
Longest span43 ft (13.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 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$584,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N2830 over Creek built?

It was built in 1993, making it 32 years old in 2025.

What condition is N2830 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 July 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 130 ft (39.5 m) long with a longest span of 43 ft (13.2 m) and a deck 28 ft wide.

Who owns N2830 over Creek?

It is owned by the County Highway Agency.