US Bridges

N4270 (1832C) over Big Creek

Good

Craig County, Oklahoma · 2E 1.5 N of SH10 and Cl · Structure no. 300610000000000

Built
2013
12 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
260 ft
3 main spans
Daily traffic
86
2022 count
Owner
County
County Highway Agency

About this bridge

N4270 (1832C) over Big Creek is a prestressed concrete stringer/multi-beam or girder carrying N4270 (1832C) over Big Creek in Craig County, Oklahoma. It was built in 2013, so it is 12 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 86 vehicles a day, roughly 15% of them trucks, projected to reach 40 by 2042. The structure is 260 ft (79.2 m) long and 28 ft wide. If it were closed, the detour would be 16.2 mi (26 km).

CarriesN4270 (1832C)
CrossesBig Creek
Location2E 1.5 N of SH10 and Cl
RouteCounty Highway N4270
Coordinates36.90611, -95.39583
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 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 adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length260 ft (79.2 m)
Longest span100 ft (30.5 m)
Deck width28 ft (8.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic86 (2022)
Projected traffic40 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed16.2 mi (26 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 N4270 (1832C) over Big Creek built?

It was built in 2013, making it 12 years old in 2025.

What condition is N4270 (1832C) over Big 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 August 2024.

How much traffic does N4270 (1832C) over Big Creek carry?

About 86 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is N4270 (1832C) over Big Creek?

The structure is 260 ft (79.2 m) long with a longest span of 100 ft (30.5 m) and a deck 28 ft wide.

Who owns N4270 (1832C) over Big Creek?

It is owned by the County Highway Agency.