US Bridges

N4050 over Muddy Boggy Creek

Good

Choctaw County, Oklahoma · 5N 3E of Boswell · Structure no. 319850000000000

Built
2019
6 years old
Condition
Good
inspected October 2024
Type
Culvert
Concrete
Length
32 ft
3 main spans
Daily traffic
70
2022 count
Owner
County
County Highway Agency

About this bridge

N4050 over Muddy Boggy Creek is a concrete culvert carrying N4050 over Muddy Boggy Creek in Choctaw County, Oklahoma. It was built in 2019, so it is 6 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 70 vehicles a day, roughly 15% of them trucks, projected to reach 112 by 2042. The structure is 32 ft (9.8 m) long and 32 ft wide. If it were closed, the detour would be 46 mi (74 km).

CarriesN4050
CrossesMuddy Boggy Creek
Location5N 3E of Boswell
RouteCounty Highway N4050
Coordinates34.10889, -95.81694
Functional classRural Major Collector

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 protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36 US tons
Inventory rating21.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHL 93
Structure length32 ft (9.8 m)
Longest span10 ft (3 m)
Deck width32 ft (9.8 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic70 (2022)
Projected traffic112 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed46 mi (74 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 Muddy Boggy Creek built?

It was built in 2019, making it 6 years old in 2025.

What condition is N4050 over Muddy Boggy 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 N4050 over Muddy Boggy Creek carry?

About 70 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N4050 over Muddy Boggy Creek?

The structure is 32 ft (9.8 m) long with a longest span of 10 ft (3 m) and a deck 32 ft wide.

Who owns N4050 over Muddy Boggy Creek?

It is owned by the County Highway Agency.