BIA ROUTE 3
Carrying BIA ROUTE 3 over E-SPILLWAY COOLIDGE DAM
19.2 KM SW SAN CARLOS AZ, Pinal, Arizona
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
BIA ROUTE 3 in Pinal, Arizona sits above 1% of rated Arizona bridges on inventory load rating (17 t), while its 1928 build year is earlier than 98% of Pinal's recorded-year cohort (716 bridges).
BIA ROUTE 3 in Pinal, Arizona is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1928, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor 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:00000000000H213
PRE-1950 · CONCRETE · MULTI-SPAN · TIED-CTRL · LOCAL-ADT · LIGHT-LOAD · CAT-POOR
- PRE-1950 Pre-1950
- CONCRETE Concrete
- MULTI-SPAN 3 spans
- TIED-CTRL Tied control
- LOCAL-ADT Local ADT
- LIGHT-LOAD Light load
- CAT-POOR Poor
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: BIA ROUTE 3
The BIA ROUTE 3 bridge in Pinal, Arizona carries BIA ROUTE 3 over E-SPILLWAY COOLIDGE DAM. It was built in 1928, making it 98 years old today. It was last reconstructed in 1995, extending its service life. The structure is built primarily of concrete and spans 3 sections, stretching 53.0 meters (174 feet) end to end. Daily traffic averages 390 vehicles, placing it in the lower-traffic tier of Arizona bridges. It is owned and maintained by Bureau of Indian Affairs.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 4/9, substructure at 4/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed.
How BIA ROUTE 3 compares
Age against the county: built in 1928, earlier than 704 of Pinal's 716 bridges with a recorded construction year (98%), against a county median build year of 1966. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across Arizona bridges with a recorded inventory load rating (8,572 of 8,573 rated).
BIA ROUTE 3 vs every rated Arizona bridge
Inventory load rating (metric tons), FHWA NBI, this state
17 Top 99% higher than 1% 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.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
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
- 1928
- Last Reconstructed
- 1995
- Material
- Concrete
- Number of Spans
- 3
- Structure Length
- 53.0 m (174 ft)
- Deck Width
- 9.6 m (31 ft)
- Owner
- Bureau of Indian Affairs
- Avg Daily Traffic
- 390 vehicles/day
- Structure Number
- 00000000000H213
Condition Analysis
- • At 4/9, the deck (driving surface) is in poor shape, with advanced wear on file for this vintage.
- • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration on the inspecting agency's 0-9 scale.
- • The substructure (piers and abutments) is in poor condition (4/9), showing advanced deterioration on the inspecting agency's 0-9 scale.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
BIA ROUTE 3 is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare BIA ROUTE 3 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 BIA ROUTE 3?
BIA ROUTE 3 in Pinal, Arizona has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is BIA ROUTE 3 inspected?
BIA ROUTE 3'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 390 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. BIA ROUTE 3 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for BIA ROUTE 3?
BIA ROUTE 3 has an NBI inventory load rating of 16.6 metric tons.
Who is responsible for maintaining BIA ROUTE 3?
BIA ROUTE 3 is owned and maintained by Bureau of Indian Affairs.
How old is BIA ROUTE 3 and does age affect safety?
BIA ROUTE 3 was built in 1928, making it 98 years old and last reconstructed in 1995.
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.