FHWA NBI 2024 Inspection record Public-domain dataset

Power Road

Carrying Power Road over Storm Drain

0.1 mi N US 60, Maricopa, Arizona

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Good
90 t Inventory load rating Higher than 85% of rated Arizona bridges

Power Road in Maricopa, Arizona sits above 85% of rated Arizona bridges on inventory load rating (90 t), while its 1984 build year is earlier than 69% of Maricopa's recorded-year cohort (2,847 bridges).

Power Road in Maricopa, Arizona is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1984, 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:06787

LATE-CENTURY · CONCRETE · MULTI-SPAN · CULVERT-LED · HEAVY-ADT · HEAVY-LOAD · CAT-GOOD

  • LATE-CENTURY 1980–1999
  • CONCRETE Concrete
  • MULTI-SPAN 2 spans
  • CULVERT-LED Culvert-led
  • HEAVY-ADT Heavy ADT
  • HEAVY-LOAD Heavy 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: Power Road

The Power Road bridge in Maricopa, Arizona carries Power Road over Storm Drain. It was built in 1984, making it 42 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 6.4 meters (21 feet) end to end. Daily traffic averages 85,221 vehicles, placing it in the heavily-trafficked tier of Arizona bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds.

How Power Road compares

▲ 42.3
Load rating vs Arizona average (47.5 t; 8,572 of 8,573 rated)
2,847
Bridges in Maricopa · 4 in Poor condition

Age against the county: built in 1984, earlier than 1,954 of Maricopa's 2,847 bridges with a recorded construction year (69%), 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.

Power Road 89.8 t
Arizona average (8,572 of 8,573 rated) 47.5 t

Live comparison across Arizona bridges with a recorded inventory load rating (8,572 of 8,573 rated).

Power Road vs every rated Arizona bridge

Inventory load rating (metric tons), FHWA NBI, this state

90 Top 15% higher than 85% 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

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

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
1984
Material
Concrete Continuous
Number of Spans
2
Structure Length
6.4 m (21 ft)
0
Owner
State Highway Agency
Avg Daily Traffic
85,221 vehicles/day
Structure Number
06787

How to read this record

This page shows what the last federal inspection recorded, not whether Power Road 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 Power Road 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 Power Road?

Power Road in Maricopa, Arizona on the FHWA's 0–9 scale.

How often is Power Road inspected?

Power Road'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 85,221 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. Power Road 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 Power Road?

Power Road has an NBI inventory load rating of 89.8 metric tons.

Who is responsible for maintaining Power Road?

Power Road is owned and maintained by State Highway Agency.

How old is Power Road and does age affect safety?

Power Road was built in 1984, making it 42 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

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.

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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.