US Bridges

I-35 Frontage Rd. over I-35 under

Fair

Murray County, Oklahoma · 5.7 MI N Carter C/L · Structure no. 175660000000000

Built
1969
56 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
293 ft
3 main spans
Daily traffic
500
2022 count
Owner
State
State Highway Agency

About this bridge

I-35 Frontage Rd. over I-35 under is a steel continuous stringer/multi-beam or girder carrying I-35 Frontage Rd. over I-35 under in Murray County, Oklahoma. It was built in 1969, so it is 56 years old, older than the Oklahoma average of 47.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 500 vehicles a day, roughly 15% of them trucks, projected to reach 800 by 2042. The structure is 293 ft (89.3 m) long and 29 ft wide.

Location

Open in Google Maps
CarriesI-35 Frontage Rd.
CrossesI-35 under
Location5.7 MI N Carter C/L
RouteU.S. Route 35
CountyMurray County
StateOklahoma
Coordinates34.45487, -97.13968
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating42 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3 (+2 approach)
Design loadH 15
Structure length293 ft (89.3 m)
Longest span80 ft (24.4 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2022)
Projected traffic800 by 2042
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$3.8 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-35 Frontage Rd. over I-35 under built?

It was built in 1969, making it 56 years old in 2025.

What condition is I-35 Frontage Rd. over I-35 under in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2023.

How much traffic does I-35 Frontage Rd. over I-35 under carry?

About 500 vehicles per day (2022 count), of which roughly 15% are trucks.

How long is I-35 Frontage Rd. over I-35 under?

The structure is 293 ft (89.3 m) long with a longest span of 80 ft (24.4 m) and a deck 29 ft wide.

Who owns I-35 Frontage Rd. over I-35 under?

It is owned by the State Highway Agency.