I90
Carrying I90 over MT Power RR Spur
Billings, Yellowstone, Montana
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: I90
The I90 bridge in Yellowstone, Montana carries I90 over MT Power RR Spur. It was built in 2023, making it 3 years old today. The structure is built primarily of concrete and spans 1 section, stretching 16.5 meters (54 feet) end to end. Daily traffic averages 14,315 vehicles, placing it in the heavily-trafficked tier of Montana bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert at 8/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How I90 compares
Live comparison across Montana.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 2023
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 16.5 m (54 ft)
- Deck Width
- 45.7 m (150 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 14,315 vehicles/day
- Structure Number
- 000000202301763
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether I90 is safe to cross today. Here is how to use it.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
- Compare I90 against other structures in Yellowstone and across Montana. Montana bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for I90?
I90 in Yellowstone, Montana on the FHWA's 0–9 scale.
How often is I90 inspected?
I90's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 14,315 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. I90 is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for I90?
An inventory load rating is not recorded for I90.
Who is responsible for maintaining I90?
I90 is owned and maintained by State Highway Agency.
How old is I90 and does age affect safety?
I90 was built in 2023, making it 3 years old.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.