ROAD 20N15
Carrying ROAD 20N15 over S FORK FEATHER RIVER
NO DATA ENTERED, Butte, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: ROAD 20N15
The ROAD 20N15 bridge in Butte, California carries ROAD 20N15 over S FORK FEATHER RIVER. It was built in 1950, making it 76 years old today. It was last reconstructed in 2000, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 39.8 meters (131 feet) end to end. Daily traffic averages 5 vehicles, placing it in the lower-traffic tier of California bridges. It is owned and maintained by U.S. Forest Service.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How ROAD 20N15 compares
Live comparison across California.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1950
- Last Reconstructed
- 2000
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 39.8 m (131 ft)
- Deck Width
- 4.0 m (13 ft)
- Owner
- U.S. Forest Service
- Avg Daily Traffic
- 5 vehicles/day
- Structure Number
- 051153000001077
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
- • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.
How to read this record
This page shows what the last federal inspection recorded, not whether ROAD 20N15 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 ROAD 20N15 against other structures in Butte and across California. California 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 ROAD 20N15?
ROAD 20N15 in Butte, California has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is ROAD 20N15 inspected?
ROAD 20N15'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 5 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. ROAD 20N15 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 ROAD 20N15?
An inventory load rating is not recorded for ROAD 20N15.
Who is responsible for maintaining ROAD 20N15?
ROAD 20N15 is owned and maintained by U.S. Forest Service.
How old is ROAD 20N15 and does age affect safety?
ROAD 20N15 was built in 1950, making it 76 years old and last reconstructed in 2000.
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.
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.