US Bridges

N4690 over Trib to Elk River

Good

Ottawa County, Oklahoma · .1N of E0240 · Structure no. 303060000000000

Built
2008
17 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
20 ft
2 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N4690 over Trib to Elk River is a concrete culvert carrying N4690 over Trib to Elk River in Ottawa County, Oklahoma. It was built in 2008, so it is 17 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 20 ft (6.2 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesN4690
CrossesTrib to Elk River
Location.1N of E0240
RouteCounty Highway N4690
Coordinates36.66917, -94.64333
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating103 US tons
Inventory rating61.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length20 ft (6.2 m)
Longest span9 ft (2.7 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 proposedNone recorded
Estimated improvement cost$225,000
NavigationNo navigation control on waterway

Frequently asked questions

When was N4690 over Trib to Elk River built?

It was built in 2008, making it 17 years old in 2025.

What condition is N4690 over Trib to Elk River 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 September 2023.

How much traffic does N4690 over Trib to Elk River carry?

About 100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N4690 over Trib to Elk River?

The structure is 20 ft (6.2 m) long with a longest span of 9 ft (2.7 m) and a deck 32 ft wide.

Who owns N4690 over Trib to Elk River?

It is owned by the County Highway Agency.