LOLO ST
Carrying LOLO ST over RATTLESNAKE CREEK 009
MISSOULA-LOLO STREET, Missoula, Montana
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: LOLO ST
The LOLO ST bridge in Missoula, Montana carries LOLO ST over RATTLESNAKE CREEK 009. It was built in 1966, making it 60 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 28.7 meters (94 feet) end to end. Daily traffic averages 2,349 vehicles, placing it in the moderately-trafficked tier of Montana bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 4/9, substructure at 5/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 32.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How LOLO ST 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 How the historical reference is calculated.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
- 1966
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 28.7 m (94 ft)
- Deck Width
- 10.0 m (33 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 2,349 vehicles/day
- Structure Number
- M32081000+00601
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • The superstructure (beams and supports above the deck) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
- • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
How to read this record
LOLO ST 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 LOLO ST against other structures in Missoula 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 LOLO ST?
LOLO ST in Missoula, Montana has a deck rating of 6/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is LOLO ST inspected?
LOLO ST'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 2,349 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. LOLO ST 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 LOLO ST?
LOLO ST has an NBI inventory load rating of 32.7 metric tons.
Who is responsible for maintaining LOLO ST?
LOLO ST is owned and maintained by City/Municipal Highway Agency.
How old is LOLO ST and does age affect safety?
LOLO ST was built in 1966, making it 60 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.