FHWA NBI 2024 Inspection record Public-domain dataset

SMA8513;ID CNTR RD

Carrying SMA8513;ID CNTR RD over PHYLLIS CANAL

2.5 N. 2.4 E. NAMPA, Canyon, Idaho

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
21 t Inventory load rating

Bridge Snapshot: SMA8513;ID CNTR RD

The SMA8513;ID CNTR RD bridge in Canyon, Idaho carries SMA8513;ID CNTR RD over PHYLLIS CANAL. It was built in 1987, making it 39 years old today. It was last reconstructed in 2005, extending its service life. The structure is built primarily of concrete and spans 1 section, stretching 8.2 meters (27 feet) end to end. Daily traffic averages 25,000 vehicles, placing it in the heavily-trafficked tier of Idaho bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 7/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 20.9 metric tons.

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

How SMA8513;ID CNTR RD compares

▼ 10.4
Load rating vs Idaho average (31.3 t)
Bottom 18%
Lower load rating than 82% of Idaho bridges
77
Bridges in Canyon · 1 in Poor condition
SMA8513;ID CNTR RD 20.9 t
Idaho average 31.3 t

Live comparison across Idaho.

Historical Sufficiency Rating

PlainBridge-computed
80.1 / 100 - historical 80–100 band
Structural adequacy /55
42.3
Serviceability /30
29.0
Essentiality /15
10.8
Special reductions
−2.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
7/9
Good (7–9)
Inventory Load Rating
20.9 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1987
Last Reconstructed
2005
Material
Concrete
Number of Spans
1
Structure Length
8.2 m (27 ft)
Deck Width
30.7 m (101 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
25,000 vehicles/day
Structure Number
000000000026945

Condition Analysis

  • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether SMA8513;ID CNTR RD 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 SMA8513;ID CNTR RD against other structures in Canyon and across Idaho. Idaho 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 SMA8513;ID CNTR RD?

SMA8513;ID CNTR RD in Canyon, Idaho has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is SMA8513;ID CNTR RD inspected?

SMA8513;ID CNTR RD'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 25,000 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SMA8513;ID CNTR RD is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for SMA8513;ID CNTR RD?

SMA8513;ID CNTR RD has an NBI inventory load rating of 20.9 metric tons.

Who is responsible for maintaining SMA8513;ID CNTR RD?

SMA8513;ID CNTR RD is owned and maintained by City/Municipal Highway Agency.

How old is SMA8513;ID CNTR RD and does age affect safety?

SMA8513;ID CNTR RD was built in 1987, making it 39 years old and last reconstructed in 2005.

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.