ORVLE CHICO HWY
Carrying ORVLE CHICO HWY over HAMLIN SLOUGH
1.1 MI NW DURHAM HWY, Butte, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: ORVLE CHICO HWY
The ORVLE CHICO HWY bridge in Butte, California carries ORVLE CHICO HWY over HAMLIN SLOUGH. It was built in 1920, making it 106 years old today. It was last reconstructed in 1975, extending its service life. The structure is built primarily of steel and spans 3 sections, stretching 18.2 meters (60 feet) end to end. Daily traffic averages 300 vehicles, placing it in the lower-traffic tier of California bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 5/9, substructure at 4/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 18.5 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How ORVLE CHICO HWY 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 How the historical reference is calculated.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
- 1920
- Last Reconstructed
- 1975
- Material
- Steel
- Number of Spans
- 3
- Structure Length
- 18.2 m (60 ft)
- Deck Width
- 8.5 m (28 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 300 vehicles/day
- Structure Number
- 12C0029
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 4/9, the deck (driving surface) is in poor shape, with advanced wear flagged for priority repair.
- • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.
How to read this record
ORVLE CHICO HWY 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 ORVLE CHICO HWY 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 ORVLE CHICO HWY?
ORVLE CHICO HWY in Butte, California has a deck rating of 4/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is ORVLE CHICO HWY inspected?
ORVLE CHICO HWY'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 300 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. ORVLE CHICO HWY 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 ORVLE CHICO HWY?
ORVLE CHICO HWY has an NBI inventory load rating of 18.5 metric tons.
Who is responsible for maintaining ORVLE CHICO HWY?
ORVLE CHICO HWY is owned and maintained by County Highway Agency.
How old is ORVLE CHICO HWY and does age affect safety?
ORVLE CHICO HWY was built in 1920, making it 106 years old and last reconstructed in 1975.
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.