US Bridges

N2830 over Sand Creek

FairPosted for load

Grant County, Oklahoma · 4.7E 1N of Nash · Structure no. 240940000000000

Built
1994
31 years old
Condition
Fair
inspected September 2024
Type
Other
Steel
Length
85 ft
1 main span
Daily traffic
284
2022 count
Owner
County
County Highway Agency

About this bridge

N2830 over Sand Creek is a steel other carrying N2830 over Sand Creek in Grant County, Oklahoma. It was built in 1994, so it is 31 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 284 vehicles a day, roughly 15% of them trucks, projected to reach 454 by 2042. The structure is 85 ft (26 m) long and 26 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN2830
CrossesSand Creek
Location4.7E 1N of Nash
RouteCounty Highway N2830
Coordinates36.68166, -97.96627
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating11 US tons
Inventory rating7.1 US tons

Structure

Structure typeOther
MaterialSteel
DeckSteel plate
Main spans1
Design loadUnknown
Structure length85 ft (26 m)
Longest span85 ft (25.8 m)
Deck width26 ft (7.8 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic284 (2022)
Projected traffic454 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$466,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N2830 over Sand Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is N2830 over Sand 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 N2830 over Sand Creek carry?

About 284 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N2830 over Sand Creek?

The structure is 85 ft (26 m) long with a longest span of 85 ft (25.8 m) and a deck 26 ft wide.

Who owns N2830 over Sand Creek?

It is owned by the County Highway Agency.