IR 75
Carrying IR 75 over TRIBUTARY MILL CREEK
.3 MI N OF IR 275, Hamilton, Ohio
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: IR 75
The IR 75 bridge in Hamilton, Ohio carries IR 75 over TRIBUTARY MILL CREEK. It was built in 1960, making it 66 years old today. The structure is built primarily of steel and spans 2 sections, stretching 11.0 meters (36 feet) end to end. Daily traffic averages 91,244 vehicles, placing it in the heavily-trafficked tier of Ohio bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert at 4/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 32.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How IR 75 compares
Live comparison across Ohio.
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 How the historical reference is calculated.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
- 1960
- Material
- Steel
- Number of Spans
- 2
- Structure Length
- 11.0 m (36 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 91,244 vehicles/day
- Structure Number
- 3111229
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
IR 75 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 IR 75 against other structures in Hamilton and across Ohio. Ohio 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 IR 75?
IR 75 in Hamilton, Ohio on the FHWA's 0–9 scale.
How often is IR 75 inspected?
IR 75'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 91,244 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. IR 75 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 IR 75?
IR 75 has an NBI inventory load rating of 32.4 metric tons.
Who is responsible for maintaining IR 75?
IR 75 is owned and maintained by State Highway Agency.
How old is IR 75 and does age affect safety?
IR 75 was built in 1960, making it 66 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.