US Bridges

N3143 (1056C) over Bear Creek Trib.

Good

Carter County, Oklahoma · 4.6 S & .3 E JCT SH7/SH74 · Structure no. 309320000000000

Built
2016
9 years old
Condition
Good
inspected March 2023
Type
Culvert
Concrete
Length
21 ft
2 main spans
Daily traffic
250
2022 count
Owner
County
County Highway Agency

About this bridge

N3143 (1056C) over Bear Creek Trib. is a concrete culvert carrying N3143 (1056C) over Bear Creek Trib. in Carter County, Oklahoma. It was built in 2016, so it is 9 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 250 vehicles a day, roughly 15% of them trucks, projected to reach 400 by 2042. The structure is 21 ft (6.4 m) long and 41 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesN3143 (1056C)
CrossesBear Creek Trib.
Location4.6 S & .3 E JCT SH7/SH74
RouteCounty Highway N3143
CountyCarter County
StateOklahoma
Coordinates34.42284, -97.39964
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 protection8 Very GoodNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length21 ft (6.4 m)
Longest span10 ft (3 m)
Deck width41 ft (12.5 m)
Roadway width39 ft (11.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2022)
Projected traffic400 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 N3143 (1056C) over Bear Creek Trib. built?

It was built in 2016, making it 9 years old in 2025.

What condition is N3143 (1056C) over Bear Creek Trib. 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 March 2023.

How much traffic does N3143 (1056C) over Bear Creek Trib. carry?

About 250 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N3143 (1056C) over Bear Creek Trib.?

The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 41 ft wide.

Who owns N3143 (1056C) over Bear Creek Trib.?

It is owned by the County Highway Agency.