US Bridges

S.H. 66 over Deep Fork River

Good

Lincoln County, Oklahoma · 7.6 Mi. E. Okla. C/L · Structure no. 295500000000000

Built
2014
11 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
369 ft
3 main spans
Daily traffic
3,200
2022 count
Owner
State
State Highway Agency

About this bridge

S.H. 66 over Deep Fork River is a prestressed concrete stringer/multi-beam or girder carrying S.H. 66 over Deep Fork River in Lincoln County, Oklahoma. It was built in 2014, so it is 11 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 3,200 vehicles a day, roughly 15% of them trucks, projected to reach 5,120 by 2042. The structure is 369 ft (112.5 m) long and 45 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

CarriesS.H. 66
CrossesDeep Fork River
Location7.6 Mi. E. Okla. C/L
RouteState Highway 66
Coordinates35.68083, -97.00972
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
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
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 rating75 US tons
Inventory rating34 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length369 ft (112.5 m)
Longest span125 ft (38.1 m)
Deck width45 ft (13.8 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,200 (2022)
Projected traffic5,120 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 S.H. 66 over Deep Fork River built?

It was built in 2014, making it 11 years old in 2025.

What condition is S.H. 66 over Deep Fork River 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 S.H. 66 over Deep Fork River carry?

About 3,200 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is S.H. 66 over Deep Fork River?

The structure is 369 ft (112.5 m) long with a longest span of 125 ft (38.1 m) and a deck 45 ft wide.

Who owns S.H. 66 over Deep Fork River?

It is owned by the State Highway Agency.