TWISP RIVER ROAD
Carrying TWISP RIVER ROAD over LITTLE BRIDGE CREEK
8.07 Mi West of Twisp, Okanogan, Washington
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
TWISP RIVER ROAD in Okanogan, Washington sits above 52% of rated Washington bridges on inventory load rating (33 t), while its 2008 build year is earlier than 9% of Okanogan's recorded-year cohort (161 bridges).
TWISP RIVER ROAD in Okanogan, Washington is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 2008, 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:087782000000000
POST-2000 · STEEL · SINGLE-SPAN · CULVERT-LED · LOCAL-ADT · STANDARD-LOAD · CAT-GOOD
- POST-2000 2000+
- STEEL Steel
- SINGLE-SPAN Single span
- CULVERT-LED Culvert-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard 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: TWISP RIVER ROAD
The TWISP RIVER ROAD bridge in Okanogan, Washington carries TWISP RIVER ROAD over LITTLE BRIDGE CREEK. It was built in 2008, making it 18 years old today. The structure is built primarily of steel and spans 1 section, stretching 12.3 meters (40 feet) end to end. Daily traffic averages 321 vehicles, placing it in the lower-traffic tier of Washington bridges. It is owned and maintained by County Highway Agency.
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 TWISP RIVER ROAD compares
Age against the county: built in 2008, earlier than 15 of Okanogan's 161 bridges with a recorded construction year (9%), against a county median build year of 1967. 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).
TWISP RIVER ROAD vs every rated Washington bridge
Inventory load rating (metric tons), FHWA NBI, this state
33 Top 48% higher than 52% 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.
Okanogan inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 161 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
- 2008
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 12.3 m (40 ft) 0
- Owner
- County Highway Agency
- Avg Daily Traffic
- 321 vehicles/day
- Structure Number
- 087782000000000
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 TWISP RIVER 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 TWISP RIVER ROAD against other structures in Okanogan 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 TWISP RIVER ROAD?
TWISP RIVER ROAD in Okanogan, Washington on the FHWA's 0–9 scale.
How often is TWISP RIVER ROAD inspected?
TWISP RIVER 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 321 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. TWISP RIVER 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 TWISP RIVER ROAD?
TWISP RIVER ROAD has an NBI inventory load rating of 32.7 metric tons.
Who is responsible for maintaining TWISP RIVER ROAD?
TWISP RIVER ROAD is owned and maintained by County Highway Agency.
How old is TWISP RIVER ROAD and does age affect safety?
TWISP RIVER 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.
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.