IRR - US 191
Carrying IRR - US 191 over WILD HORSE CREEK
20M SW MALTA, Phillips, Montana
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: IRR - US 191
The IRR - US 191 bridge in Phillips, Montana carries IRR - US 191 over WILD HORSE CREEK. It was built in 1941, making it 85 years old today. The structure is built primarily of wood or timber and spans 4 sections, stretching 30.5 meters (100 feet) end to end. Daily traffic averages 375 vehicles, placing it in the lower-traffic tier of Montana bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 4/9, substructure at 6/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 21.8 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How IRR - US 191 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 How the historical reference is calculated.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
- 1941
- Material
- Wood or Timber
- Number of Spans
- 4
- Structure Length
- 30.5 m (100 ft)
- Deck Width
- 7.9 m (26 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 375 vehicles/day
- Structure Number
- P00061136+07611
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • At 4/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear flagged for priority repair.
- • The substructure (piers and abutments) rates fair at 6/9, minor deterioration that routine maintenance should address.
How to read this record
IRR - US 191 is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare IRR - US 191 against other structures in Phillips 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 IRR - US 191?
IRR - US 191 in Phillips, Montana has a deck rating of 7/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is IRR - US 191 inspected?
IRR - US 191'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 375 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. IRR - US 191 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for IRR - US 191?
IRR - US 191 has an NBI inventory load rating of 21.8 metric tons.
Who is responsible for maintaining IRR - US 191?
IRR - US 191 is owned and maintained by State Highway Agency.
How old is IRR - US 191 and does age affect safety?
IRR - US 191 was built in 1941, making it 85 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.