GREEN VALLEY RD
Carrying GREEN VALLEY RD over GREEN VALLEY CREEK
1.3 MI W SH 116, Sonoma, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: GREEN VALLEY RD
The GREEN VALLEY RD bridge in Sonoma, California carries GREEN VALLEY RD over GREEN VALLEY CREEK. It was built in 1958, making it 68 years old today. It was last reconstructed in 1968, extending its service life. The structure is built primarily of concrete continuous and spans 3 sections, stretching 24.4 meters (80 feet) end to end. Daily traffic averages 2,700 vehicles, placing it in the moderately-trafficked 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 4/9, substructure at 5/9. 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 40.5 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How GREEN VALLEY RD 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 How the historical reference is calculated.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
- 1958
- Last Reconstructed
- 1968
- Material
- Concrete Continuous
- Number of Spans
- 3
- Structure Length
- 24.4 m (80 ft)
- Deck Width
- 12.4 m (41 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 2,700 vehicles/day
- Structure Number
- 20C0382
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
- • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
- • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
How to read this record
GREEN VALLEY RD 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 GREEN VALLEY RD against other structures in Sonoma 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 GREEN VALLEY RD?
GREEN VALLEY RD in Sonoma, California has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is GREEN VALLEY RD inspected?
GREEN VALLEY 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 2,700 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. GREEN VALLEY RD 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 GREEN VALLEY RD?
GREEN VALLEY RD has an NBI inventory load rating of 40.5 metric tons.
Who is responsible for maintaining GREEN VALLEY RD?
GREEN VALLEY RD is owned and maintained by County Highway Agency.
How old is GREEN VALLEY RD and does age affect safety?
GREEN VALLEY RD was built in 1958, making it 68 years old and last reconstructed in 1968.
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.