US Bridges

N4180 over Claremore Lake

Fair

Rogers County, Oklahoma · 1.5 MI N of I-44 · Structure no. 149690000000000

Built
1960
65 years old, rebuilt 2014
Condition
Fair
inspected June 2023
Type
Slab
Concrete
Length
59 ft
3 main spans
Daily traffic
500
2022 count
Owner
County
County Highway Agency

About this bridge

N4180 over Claremore Lake is a concrete slab carrying N4180 over Claremore Lake in Rogers County, Oklahoma. It was built in 1960 and reconstructed in 2014, so it is 65 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 500 vehicles a day, roughly 10% of them trucks, projected to reach 800 by 2042. The structure is 59 ft (18 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesN4180
CrossesClaremore Lake
Location1.5 MI N of I-44
RouteCounty Highway N4180
CountyRogers County
StateOklahoma
Coordinates36.33565, -95.56072
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating57.8 US tons
Inventory rating34.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length59 ft (18 m)
Longest span29 ft (8.8 m)
Deck width25 ft (7.7 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2022)
Projected traffic800 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$383,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N4180 over Claremore Lake built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2014.

What condition is N4180 over Claremore Lake 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 June 2023.

How much traffic does N4180 over Claremore Lake carry?

About 500 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N4180 over Claremore Lake?

The structure is 59 ft (18 m) long with a longest span of 29 ft (8.8 m) and a deck 25 ft wide.

Who owns N4180 over Claremore Lake?

It is owned by the County Highway Agency.