146 TH AVE
Carrying 146 TH AVE over I-196
1.2 MI S OF OTTAWA COL, Allegan, Michigan
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: 146 TH AVE
The 146 TH AVE bridge in Allegan, Michigan carries 146 TH AVE over I-196. It was built in 1972, making it 54 years old today. The structure is built primarily of steel. Daily traffic averages 18,246 vehicles, placing it in the heavily-trafficked tier of Michigan bridges.
The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. No reported major component scores in the Poor range under the current federal condition thresholds.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How 146 TH AVE compares
Live comparison across Michigan.
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 How the historical reference is calculated.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
- 1972
- Material
- Steel
- Avg Daily Traffic
- 18,246 vehicles/day
- Structure Number
- 000000000000132
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 146 TH AVE 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 146 TH AVE against other structures in Allegan and across Michigan. Michigan 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 146 TH AVE?
146 TH AVE in Allegan, Michigan on the FHWA's 0–9 scale.
How often is 146 TH AVE inspected?
146 TH AVE'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 18,246 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. 146 TH AVE is currently shown as unrated condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for 146 TH AVE?
An inventory load rating is not recorded for 146 TH AVE.
Who is responsible for maintaining 146 TH AVE?
Ownership is not specified for 146 TH AVE in the NBI.
How old is 146 TH AVE and does age affect safety?
146 TH AVE was built in 1972, making it 54 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.