Grand Valley Road
Carrying Grand Valley Road over CAP Canal
1.7 mi SE Missile Base Rd, Pinal, Arizona
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
Grand Valley Road in Pinal, Arizona sits above 85% of rated Arizona bridges on inventory load rating (90 t), while its 1987 build year is earlier than 30% of Pinal's recorded-year cohort (716 bridges).
Grand Valley Road in Pinal, Arizona is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1987, 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:08972
LATE-CENTURY · CONCRETE · MULTI-SPAN · CULVERT-LED · TRACE-ADT · HEAVY-LOAD · CAT-GOOD
- LATE-CENTURY 1980–1999
- CONCRETE Concrete
- MULTI-SPAN 3 spans
- CULVERT-LED Culvert-led
- TRACE-ADT Trace 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: Grand Valley Road
The Grand Valley Road bridge in Pinal, Arizona carries Grand Valley Road over CAP Canal. It was built in 1987, making it 39 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 18.0 meters (59 feet) end to end. Daily traffic averages 10 vehicles, placing it in the lower-traffic tier of Arizona bridges. It is owned and maintained by Other State Agencies.
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.
How Grand Valley Road compares
Age against the county: built in 1987, earlier than 215 of Pinal's 716 bridges with a recorded construction year (30%), against a county median build year of 1966. This is one of the newer structures in its county.
Live comparison across Arizona bridges with a recorded inventory load rating (8,572 of 8,573 rated).
Grand Valley 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
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Pinal inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 716 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
- 1987
- Material
- Concrete Continuous
- Number of Spans
- 3
- Structure Length
- 18.0 m (59 ft) 0
- Owner
- Other State Agencies
- Avg Daily Traffic
- 10 vehicles/day
- Structure Number
- 08972
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 Grand Valley 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 Grand Valley Road against other structures in Pinal 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 Grand Valley Road?
Grand Valley Road in Pinal, Arizona on the FHWA's 0–9 scale.
How often is Grand Valley Road inspected?
Grand Valley 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 10 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. Grand Valley 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 Grand Valley Road?
Grand Valley Road has an NBI inventory load rating of 89.8 metric tons.
Who is responsible for maintaining Grand Valley Road?
Grand Valley Road is owned and maintained by Other State Agencies.
How old is Grand Valley Road and does age affect safety?
Grand Valley Road was built in 1987, making it 39 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.