US Bridges

N2840 over Lynch Creek

FairPosted for load

Grant County, Oklahoma · 1W .5S of SH11A/SH11 · Structure no. 251300000000000

Built
1997
28 years old
Condition
Fair
inspected July 2024
Type
Box Beam or Girders - Multiple
Steel
Length
45 ft
1 main span
Daily traffic
24
2022 count
Owner
County
County Highway Agency

About this bridge

N2840 over Lynch Creek is a steel box beam or girders - multiple carrying N2840 over Lynch Creek in Grant County, Oklahoma. It was built in 1997, so it is 28 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. Its operating status is: posted for load restriction.

It carries about 24 vehicles a day, roughly 10% of them trucks, projected to reach 38 by 2042. The structure is 45 ft (13.7 m) long and 21 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN2840
CrossesLynch Creek
Location1W .5S of SH11A/SH11
RouteCounty Highway N2840
CountyGrant County
StateOklahoma
Coordinates36.80352, -97.94801
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 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 adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating5 US tons
Inventory rating3 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialSteel
DeckSteel plate
Main spans1
Design loadUnknown
Structure length45 ft (13.7 m)
Longest span44 ft (13.4 m)
Deck width21 ft (6.4 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24 (2022)
Projected traffic38 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$331,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N2840 over Lynch Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is N2840 over Lynch 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 2024.

How much traffic does N2840 over Lynch Creek carry?

About 24 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N2840 over Lynch Creek?

The structure is 45 ft (13.7 m) long with a longest span of 44 ft (13.4 m) and a deck 21 ft wide.

Who owns N2840 over Lynch Creek?

It is owned by the County Highway Agency.