US Bridges

Hubbard Road over I-35 under

Good

Kay County, Oklahoma · 11 Miles N Noble C/L · Structure no. 313340000000000

Built
2016
9 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
251 ft
4 main spans
Daily traffic
355
2022 count
Owner
State
State Highway Agency

About this bridge

Hubbard Road over I-35 under is a prestressed concrete stringer/multi-beam or girder carrying Hubbard Road over I-35 under in Kay 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 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 355 vehicles a day, roughly 20% of them trucks, projected to reach 568 by 2042. The structure is 251 ft (76.4 m) long and 42 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHubbard Road
CrossesI-35 under
Location11 Miles N Noble C/L
RouteCounty Highway 3630C
Coordinates36.75332, -97.34618
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.
Substructure8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length251 ft (76.4 m)
Longest span90 ft (27.4 m)
Deck width42 ft (12.9 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic355 (2022)
Projected traffic568 by 2042
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Hubbard Road over I-35 under built?

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

What condition is Hubbard Road over I-35 under 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 July 2024.

How much traffic does Hubbard Road over I-35 under carry?

About 355 vehicles per day (2022 count), of which roughly 20% are trucks.

How long is Hubbard Road over I-35 under?

The structure is 251 ft (76.4 m) long with a longest span of 90 ft (27.4 m) and a deck 42 ft wide.

Who owns Hubbard Road over I-35 under?

It is owned by the State Highway Agency.