Surro Ave
Carrying Surro Ave over CSO Detention Tank
Surro Ave, Spokane, Washington
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
Surro Ave in Spokane, Washington sits above 82% of rated Washington bridges on inventory load rating (45 t), while its 2009 build year is earlier than 16% of Spokane's recorded-year cohort (307 bridges).
Surro Ave in Spokane, Washington is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 2009, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 8. 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 WA:088799000000000
POST-2000 · PRESTRESS · SINGLE-SPAN · CULVERT-LED · TRACE-ADT · HEAVY-LOAD · CAT-GOOD
- POST-2000 2000+
- PRESTRESS Prestressed concrete
- SINGLE-SPAN Single span
- 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: Surro Ave
The Surro Ave bridge in Spokane, Washington carries Surro Ave over CSO Detention Tank. It was built in 2009, making it 17 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 27.1 meters (89 feet) end to end. Daily traffic averages 32 vehicles, placing it in the lower-traffic tier of Washington bridges. It is owned and maintained by Local Park/Forest/Reservation.
The latest FHWA inspection records show culvert at 8/9. The weakest component sits in good condition. All reported major components score above the Poor range.
How Surro Ave compares
Age against the county: built in 2009, earlier than 48 of Spokane's 307 bridges with a recorded construction year (16%), against a county median build year of 1973. This is one of the newer structures in its county.
Live comparison across Washington bridges with a recorded inventory load rating (8,455 of 8,474 rated).
Surro Ave vs every rated Washington bridge
Inventory load rating (metric tons), FHWA NBI, this state
45 Top 18% higher than 82% of 8,455 bridges
rated Washington 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.
Spokane inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 307 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
- 2009
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 27.1 m (89 ft)
- Deck Width
- 6.4 m (21 ft)
- Owner
- Local Park/Forest/Reservation
- Avg Daily Traffic
- 32 vehicles/day
- Structure Number
- 088799000000000
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 Surro Ave 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 Surro Ave against other structures in Spokane and across Washington. Washington 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 Surro Ave?
Surro Ave in Spokane, Washington on the FHWA's 0–9 scale.
How often is Surro Ave inspected?
Surro Ave'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 32 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. Surro Ave 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 Surro Ave?
Surro Ave has an NBI inventory load rating of 44.7 metric tons.
Who is responsible for maintaining Surro Ave?
Surro Ave is owned and maintained by Local Park/Forest/Reservation.
How old is Surro Ave and does age affect safety?
Surro Ave was built in 2009, making it 17 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.