US Bridges

N4050 over Elm Creek

Good

Rogers County, Oklahoma · 2.4S of S.H. 20 · Structure no. 294390000000000

Built
2011
14 years old
Condition
Good
inspected June 2023
Type
Slab
Prestressed Concrete
Length
120 ft
3 main spans
Daily traffic
1,477
2022 count
Owner
County
County Highway Agency

About this bridge

N4050 over Elm Creek is a prestressed concrete slab carrying N4050 over Elm Creek in Rogers County, Oklahoma. It was built in 2011, so it is 14 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 1,477 vehicles a day, roughly 10% of them trucks, projected to reach 2,363 by 2042. The structure is 120 ft (36.6 m) long and 56 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesN4050
CrossesElm Creek
Location2.4S of S.H. 20
RouteCounty Highway N4050
Coordinates36.2875, -95.79444
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.4 US tons
Inventory rating39.7 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width56 ft (17.2 m)
Roadway width54 ft (16.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,477 (2022)
Projected traffic2,363 by 2042
Trucks10%
Lanes on structure3
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was N4050 over Elm Creek built?

It was built in 2011, making it 14 years old in 2025.

What condition is N4050 over Elm 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 June 2023.

How much traffic does N4050 over Elm Creek carry?

About 1,477 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N4050 over Elm Creek?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 56 ft wide.

Who owns N4050 over Elm Creek?

It is owned by the County Highway Agency.