MCDONALD LN
Carrying MCDONALD LN over LTL PRICKLY PEAR CRK 151
3M W CANYON CREEK, Lewis and Clark, Montana
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: MCDONALD LN
The MCDONALD LN bridge in Lewis and Clark, Montana carries MCDONALD LN over LTL PRICKLY PEAR CRK 151. It was built in 1990, making it 36 years old today. The structure is built primarily of steel and spans 1 section, stretching 11.9 meters (39 feet) end to end. Daily traffic averages 100 vehicles, placing it in the lower-traffic tier of Montana bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure 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 4.5 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How MCDONALD LN 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 How the historical reference is calculated.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
- 1990
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 11.9 m (39 ft)
- Deck Width
- 4.0 m (13 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 100 vehicles/day
- Structure Number
- L25995000+02001
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) 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 MCDONALD LN 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 MCDONALD LN against other structures in Lewis and Clark 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 MCDONALD LN?
MCDONALD LN in Lewis and Clark, Montana has a deck rating of 7/9, superstructure rating of 5/9 on the FHWA's 0–9 scale.
How often is MCDONALD LN inspected?
MCDONALD LN'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 100 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. MCDONALD LN 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 MCDONALD LN?
MCDONALD LN has an NBI inventory load rating of 4.5 metric tons.
Who is responsible for maintaining MCDONALD LN?
MCDONALD LN is owned and maintained by County Highway Agency.
How old is MCDONALD LN and does age affect safety?
MCDONALD LN was built in 1990, making it 36 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.