FHWA NBI 2024 Inspection record Public-domain dataset

Dirt Service Road

Carrying Dirt Service Road over Las Sendas Channel

600 ft NE 202L/ McDowell, Maricopa, Arizona

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
33 t Inventory load rating

Bridge Snapshot: Dirt Service Road

The Dirt Service Road bridge in Maricopa, Arizona carries Dirt Service Road over Las Sendas Channel. It was built in 2008, making it 18 years old today. The structure is built primarily of concrete continuous and spans 4 sections, stretching 16.5 meters (54 feet) end to end. Daily traffic averages 20 vehicles, placing it in the lower-traffic 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. All reported major components score above the Poor range. Its NBI inventory load rating is 32.7 metric tons.

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

How Dirt Service Road compares

▼ 14.7
Load rating vs Arizona average (47.4 t)
Bottom 27%
Lower load rating than 73% of Arizona bridges
2,203
Bridges in Maricopa · 3 in Poor condition
Dirt Service Road 32.7 t
Arizona average 47.4 t

Live comparison across Arizona.

Historical Sufficiency Rating

PlainBridge-computed
96.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
29.0
Essentiality /15
15.0
Special reductions
−3.0

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 How the historical reference is calculated.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
32.7 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2008
Material
Concrete Continuous
Number of Spans
4
Structure Length
16.5 m (54 ft)
Deck Width
7.5 m (25 ft)
Owner
State Highway Agency
Avg Daily Traffic
20 vehicles/day
Structure Number
07187

How to read this record

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

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

How often is Dirt Service Road inspected?

Dirt Service 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 20 vehicles per day.

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

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

Dirt Service Road has an NBI inventory load rating of 32.7 metric tons.

Who is responsible for maintaining Dirt Service Road?

Dirt Service Road is owned and maintained by State Highway Agency.

How old is Dirt Service Road and does age affect safety?

Dirt Service Road was built in 2008, making it 18 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.