M 154
Carrying M 154 over N CHANNEL MISS RIVER
MUN 154 OVER MISS RIVER, Winona, Minnesota
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
M 154 in Winona, Minnesota sits above 1% of rated Minnesota bridges on inventory load rating (7 t), while its 1916 build year is earlier than 99% of Winona's recorded-year cohort (237 bridges).
M 154 in Winona, Minnesota is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1916, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 5. The lowest applicable rating sets the federal condition category, so this Fair result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure MN:4260
PRE-1950 · CONCRETE · LONG-SPAN-RUN · TIED-CTRL · TRACE-ADT · LIGHT-LOAD · CAT-FAIR
- PRE-1950 Pre-1950
- CONCRETE Concrete
- LONG-SPAN-RUN 13 spans
- TIED-CTRL Tied control
- TRACE-ADT Trace ADT
- LIGHT-LOAD Light load
- CAT-FAIR Fair
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: M 154
The M 154 bridge in Winona, Minnesota carries M 154 over N CHANNEL MISS RIVER. It was built in 1916, making it 110 years old today. It was last reconstructed in 2003, extending its service life. The structure is built primarily of concrete continuous and spans 13 sections, stretching 371.9 meters (1220 feet) end to end. Daily traffic averages 40 vehicles, placing it in the lower-traffic tier of Minnesota bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range.
How M 154 compares
Age against the county: built in 1916, earlier than 235 of Winona's 237 bridges with a recorded construction year (99%), against a county median build year of 1980. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Minnesota bridges with a recorded inventory load rating (13,532 rated).
M 154 vs every rated Minnesota bridge
Inventory load rating (metric tons), FHWA NBI, this state
7 Top 99% higher than 1% of 13,532 bridges
rated Minnesota bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Winona inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 237 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1916
- Last Reconstructed
- 2003
- Material
- Concrete Continuous
- Number of Spans
- 13
- Structure Length
- 371.9 m (1220 ft)
- Deck Width
- 7.5 m (25 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 40 vehicles/day
- Structure Number
- 4260
Condition Analysis
- • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
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 M 154 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 M 154 against other structures in Winona and across Minnesota. Minnesota 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 M 154?
M 154 in Winona, Minnesota has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is M 154 inspected?
M 154'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 40 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. M 154 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 M 154?
M 154 has an NBI inventory load rating of 6.5 metric tons.
Who is responsible for maintaining M 154?
M 154 is owned and maintained by City/Municipal Highway Agency.
How old is M 154 and does age affect safety?
M 154 was built in 1916, making it 110 years old and last reconstructed in 2003.
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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.