FHWA NBI 2024 Inspection record Public-domain dataset

Thompson Peak Pkwy

Carrying Thompson Peak Pkwy over Wash

1000' S of Windgate Pass, Maricopa, Arizona

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
45 t Inventory load rating

Bridge Snapshot: Thompson Peak Pkwy

The Thompson Peak Pkwy bridge in Maricopa, Arizona carries Thompson Peak Pkwy over Wash. It was built in 2001, making it 25 years old today. The structure is built primarily of concrete continuous and spans 1 section, stretching 7.3 meters (24 feet) end to end. Daily traffic averages 14,300 vehicles, placing it in the heavily-trafficked 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 45.4 metric tons.

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

How Thompson Peak Pkwy compares

▼ 2.0
Load rating vs Arizona average (47.4 t)
Top 33%
Higher load rating than 67% of Arizona bridges
2,203
Bridges in Maricopa · 3 in Poor condition
Thompson Peak Pkwy 45.4 t
Arizona average 47.4 t

Live comparison across Arizona.

Historical Sufficiency Rating

PlainBridge-computed
98.7 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
13.7
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 How the historical reference is calculated.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
45.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2001
Material
Concrete Continuous
Number of Spans
1
Structure Length
7.3 m (24 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
14,300 vehicles/day
Structure Number
11258

How to read this record

This page shows what the last federal inspection recorded, not whether Thompson Peak Pkwy 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 Thompson Peak Pkwy 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 Thompson Peak Pkwy?

Thompson Peak Pkwy in Maricopa, Arizona on the FHWA's 0–9 scale.

How often is Thompson Peak Pkwy inspected?

Thompson Peak Pkwy'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 14,300 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Thompson Peak Pkwy 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 Thompson Peak Pkwy?

Thompson Peak Pkwy has an NBI inventory load rating of 45.4 metric tons.

Who is responsible for maintaining Thompson Peak Pkwy?

Thompson Peak Pkwy is owned and maintained by City/Municipal Highway Agency.

How old is Thompson Peak Pkwy and does age affect safety?

Thompson Peak Pkwy was built in 2001, making it 25 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.