US Bridges

I-35 over S.H. 77D under

Good

Murray County, Oklahoma · 4.8 N Carter C/L · Structure no. 321320000000000

Built
2024
1 years old
Condition
Good
inspected January 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
170 ft
3 main spans
Daily traffic
15,200
2022 count
Owner
State
State Highway Agency

About this bridge

I-35 over S.H. 77D under is a steel stringer/multi-beam or girder carrying I-35 over S.H. 77D under in Murray County, Oklahoma. It was built in 2024, so it is 1 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 15,200 vehicles a day, projected to reach 15,200 by 2042. The structure is 170 ft (51.8 m) long and 78 ft wide.

CarriesI-35
CrossesS.H. 77D under
Location4.8 N Carter C/L
RouteInterstate 35
Coordinates34.44417, -97.12944
Functional classRural Principal Arterial - Interstate

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.
Last inspectionJanuary 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 rating67.8 US tons
Inventory rating52.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length170 ft (51.8 m)
Longest span68 ft (20.6 m)
Deck width78 ft (23.7 m)
Roadway width75 ft (22.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15,200 (2022)
Projected traffic15,200 by 2042
Trucks—
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-35 over S.H. 77D under built?

It was built in 2024, making it 1 years old in 2025.

What condition is I-35 over S.H. 77D 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 January 2024.

How much traffic does I-35 over S.H. 77D under carry?

About 15,200 vehicles per day (2022 count).

How long is I-35 over S.H. 77D under?

The structure is 170 ft (51.8 m) long with a longest span of 68 ft (20.6 m) and a deck 78 ft wide.

Who owns I-35 over S.H. 77D under?

It is owned by the State Highway Agency.