NORTH ENTRANCE ROA
Carrying NORTH ENTRANCE ROA over GARDNER RIVER
1.5 MI. SOUTH OF NORTH EN, Park, Montana
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: NORTH ENTRANCE ROA
The NORTH ENTRANCE ROA bridge in Park, Montana carries NORTH ENTRANCE ROA over GARDNER RIVER. It was built in 1957, making it 69 years old today. The structure is built primarily of steel and spans 1 section, stretching 31.7 meters (104 feet) end to end. Daily traffic averages 2,294 vehicles, placing it in the moderately-trafficked tier of Montana bridges. It is owned and maintained by National Park Service.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 7/9, substructure at 5/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 64.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How NORTH ENTRANCE ROA 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 How the historical reference is calculated.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
- 1957
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 31.7 m (104 ft)
- Deck Width
- 11.0 m (36 ft)
- Owner
- National Park Service
- Avg Daily Traffic
- 2,294 vehicles/day
- Structure Number
- 1570024P0000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
How to read this record
This page shows what the last federal inspection recorded, not whether NORTH ENTRANCE ROA 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 NORTH ENTRANCE ROA against other structures in Park 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 NORTH ENTRANCE ROA?
NORTH ENTRANCE ROA in Park, Montana has a deck rating of 5/9, superstructure rating of 7/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is NORTH ENTRANCE ROA inspected?
NORTH ENTRANCE ROA'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 2,294 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. NORTH ENTRANCE ROA is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for NORTH ENTRANCE ROA?
NORTH ENTRANCE ROA has an NBI inventory load rating of 64.4 metric tons.
Who is responsible for maintaining NORTH ENTRANCE ROA?
NORTH ENTRANCE ROA is owned and maintained by National Park Service.
How old is NORTH ENTRANCE ROA and does age affect safety?
NORTH ENTRANCE ROA was built in 1957, making it 69 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.