US Bridges

N3670 over Little Deep Fork Creek

Good

Creek County, Oklahoma · 1.7E .2N of Depew · Structure no. 311750000000000

Built
2013
12 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
105 ft
2 main spans
Daily traffic
100
2022 count
Owner
County
County Highway Agency

About this bridge

N3670 over Little Deep Fork Creek is a steel stringer/multi-beam or girder carrying N3670 over Little Deep Fork Creek in Creek 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2042. The structure is 105 ft (32 m) long and 27 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesN3670
CrossesLittle Deep Fork Creek
Location1.7E .2N of Depew
RouteCounty Highway N3670
Coordinates35.80583, -96.47639
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 protection7 GoodSome minor problems.
Last inspectionJune 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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.8 US tons
Inventory rating32.3 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length105 ft (32 m)
Longest span60 ft (18.3 m)
Deck width27 ft (8.2 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2022)
Projected traffic160 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 N3670 over Little Deep Fork Creek built?

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

What condition is N3670 over Little Deep Fork 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 2024.

How much traffic does N3670 over Little Deep Fork Creek carry?

About 100 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is N3670 over Little Deep Fork Creek?

The structure is 105 ft (32 m) long with a longest span of 60 ft (18.3 m) and a deck 27 ft wide.

Who owns N3670 over Little Deep Fork Creek?

It is owned by the County Highway Agency.