US Bridges

N4090 over Big Branch Creek

Good

Choctaw County, Oklahoma · 2. E .5 S of Unger · Structure no. 251390000000000

Built
2001
24 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
68 ft
1 main span
Daily traffic
30
2022 count
Owner
County
County Highway Agency

About this bridge

N4090 over Big Branch Creek is a prestressed concrete stringer/multi-beam or girder carrying N4090 over Big Branch Creek in Choctaw County, Oklahoma. It was built in 2001, so it is 24 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 48 by 2042. The structure is 68 ft (20.7 m) long and 28 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesN4090
CrossesBig Branch Creek
Location2. E .5 S of Unger
RouteCounty Highway N4090
Coordinates34.01801, -95.74831
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating82 US tons
Inventory rating47 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length68 ft (20.7 m)
Longest span65 ft (19.8 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2022)
Projected traffic48 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$3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was N4090 over Big Branch Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is N4090 over Big Branch 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 October 2024.

How much traffic does N4090 over Big Branch Creek carry?

About 30 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N4090 over Big Branch Creek?

The structure is 68 ft (20.7 m) long with a longest span of 65 ft (19.8 m) and a deck 28 ft wide.

Who owns N4090 over Big Branch Creek?

It is owned by the County Highway Agency.