Mill Avenue NB
Carrying Mill Avenue NB over Salt Rvr, Rio Salado Pkw
0.2 mi S of Curry Rd, Maricopa, Arizona
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: Mill Avenue NB
The Mill Avenue NB bridge in Maricopa, Arizona carries Mill Avenue NB over Salt Rvr, Rio Salado Pkw. It was built in 1994, making it 32 years old today. The structure is built primarily of prestressed concrete continuous. Daily traffic averages 12,820 vehicles, placing it in the heavily-trafficked tier of Arizona bridges.
The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. All reported major components score above the Poor range.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How Mill Avenue NB compares
Live comparison across Arizona.
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 How the historical reference is calculated.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
- 1994
- Material
- Prestressed Concrete Continuous
- Avg Daily Traffic
- 12,820 vehicles/day
- Structure Number
- 07817
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 Mill Avenue NB 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 Mill Avenue NB against other structures in Maricopa and across Arizona. Arizona 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 Mill Avenue NB?
Mill Avenue NB in Maricopa, Arizona on the FHWA's 0–9 scale.
How often is Mill Avenue NB inspected?
Mill Avenue NB'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 12,820 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. Mill Avenue NB 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 Mill Avenue NB?
An inventory load rating is not recorded for Mill Avenue NB.
Who is responsible for maintaining Mill Avenue NB?
Ownership is not specified for Mill Avenue NB in the NBI.
How old is Mill Avenue NB and does age affect safety?
Mill Avenue NB was built in 1994, making it 32 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.