FHWA NBI 2024 Inspection record Public-domain dataset

E Ironwood Drive

Carrying E Ironwood Drive over Drainage Waterway

at Jct with Miller Road, Maricopa, Arizona

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
39 t Inventory load rating

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. Its NBI inventory load rating is 39.0 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How E Ironwood Drive compares

▼ 8.4
Load rating vs Arizona average (47.4 t)
Top 44%
Higher load rating than 56% of Arizona bridges
2,203
Bridges in Maricopa · 3 in Poor condition
E Ironwood Drive 39.0 t
Arizona average 47.4 t

Live comparison across Arizona.

Historical Sufficiency Rating

PlainBridge-computed
100.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
15.0
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Culvert
7/9
Good (7–9)
Inventory Load Rating
39.0 t
NBI inventory level (metric tons)
Overall Condition
Good

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1976
Material
Concrete Continuous
Number of Spans
3
Structure Length
10.1 m (33 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
400 vehicles/day
Structure Number
08544

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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.