US Bridges

I-35 SB over BNSF R.R. under

Fair

Noble County, Oklahoma · 0.7 MI N JCT US 77 · Structure no. 153250000000000

Built
1961
64 years old, rebuilt 2013
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
133 ft
3 main spans
Daily traffic
8,150
2022 count
Owner
State
State Highway Agency

About this bridge

I-35 SB over BNSF R.R. under is a steel stringer/multi-beam or girder carrying I-35 SB over BNSF R.R. under in Noble County, Oklahoma. It was built in 1961 and reconstructed in 2013, so it is 64 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 8,150 vehicles a day, roughly 12% of them trucks, projected to reach 13,040 by 2042. The structure is 133 ft (40.5 m) long and 41 ft wide.

Location

Open in Google Maps
CarriesI-35 SB
CrossesBNSF R.R. under
Location0.7 MI N JCT US 77
RouteInterstate 35
CountyNoble County
StateOklahoma
Coordinates36.2851, -97.32792
Functional classUrban Principal Arterial - Interstate

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2024
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 geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length133 ft (40.5 m)
Longest span44 ft (13.4 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,150 (2022)
Projected traffic13,040 by 2042
Trucks12%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.5 million
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-35 SB over BNSF R.R. under built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2013.

What condition is I-35 SB over BNSF R.R. 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 April 2024.

How much traffic does I-35 SB over BNSF R.R. under carry?

About 8,150 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is I-35 SB over BNSF R.R. under?

The structure is 133 ft (40.5 m) long with a longest span of 44 ft (13.4 m) and a deck 41 ft wide.

Who owns I-35 SB over BNSF R.R. under?

It is owned by the State Highway Agency.