E Ironwood Drive
Carrying E Ironwood Drive over Drainage Waterway
at Jct with Miller Road, Maricopa, Arizona
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
E Ironwood Drive in Maricopa, Arizona sits above 55% of rated Arizona bridges on inventory load rating (39 t), while its 1976 build year is earlier than 78% of Maricopa's recorded-year cohort (2,847 bridges).
E Ironwood Drive in Maricopa, Arizona is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1976, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good 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 AZ:08544
INTERSTATE-ERA · CONCRETE · MULTI-SPAN · CULVERT-LED · LOCAL-ADT · STANDARD-LOAD · CAT-GOOD
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- MULTI-SPAN 3 spans
- CULVERT-LED Culvert-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-GOOD Good
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: E Ironwood Drive
The E Ironwood Drive bridge in Maricopa, Arizona carries E Ironwood Drive over Drainage Waterway. It was built in 1976, making it 50 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 10.1 meters (33 feet) end to end. Daily traffic averages 400 vehicles, placing it in the lower-traffic tier of Arizona bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
How E Ironwood Drive compares
Age against the county: built in 1976, earlier than 2,224 of Maricopa's 2,847 bridges with a recorded construction year (78%), against a county median build year of 1991. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Arizona bridges with a recorded inventory load rating (8,572 of 8,573 rated).
E Ironwood Drive vs every rated Arizona bridge
Inventory load rating (metric tons), FHWA NBI, this state
39 Top 45% higher than 55% of 8,572 bridges
rated Arizona 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.
Maricopa inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 2,847 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
- 1976
- Material
- Concrete Continuous
- Number of Spans
- 3
- Structure Length
- 10.1 m (33 ft) 0
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 400 vehicles/day
- Structure Number
- 08544
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 E Ironwood Drive 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 E Ironwood Drive 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 E Ironwood Drive?
E Ironwood Drive in Maricopa, Arizona on the FHWA's 0–9 scale.
How often is E Ironwood Drive inspected?
E Ironwood Drive'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 400 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. E Ironwood Drive is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for E Ironwood Drive?
E Ironwood Drive has an NBI inventory load rating of 39.0 metric tons.
Who is responsible for maintaining E Ironwood Drive?
E Ironwood Drive is owned and maintained by City/Municipal Highway Agency.
How old is E Ironwood Drive and does age affect safety?
E Ironwood Drive was built in 1976, making it 50 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.
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.