TALL GRASS DRIVE
Carrying TALL GRASS DRIVE over BROWNS VALLEY CREEK
JUST SOUTH OF PARTRICK RD, Napa, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: TALL GRASS DRIVE
The TALL GRASS DRIVE bridge in Napa, California carries TALL GRASS DRIVE over BROWNS VALLEY CREEK. It was built in 2009, making it 17 years old today. The structure is built primarily of steel and spans 1 section, stretching 26.5 meters (87 feet) end to end. Daily traffic averages 1,000 vehicles, placing it in the lower-traffic tier of California bridges. It is owned and maintained by City/Municipal Highway Agency.
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. Its NBI inventory load rating is 68.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How TALL GRASS DRIVE 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 How the historical reference is calculated.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
- 2009
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 26.5 m (87 ft)
- Deck Width
- 12.1 m (40 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 1,000 vehicles/day
- Structure Number
- 21C0135
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.
- • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
- • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.
How to read this record
This page shows what the last federal inspection recorded, not whether TALL GRASS DRIVE 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 TALL GRASS DRIVE against other structures in Napa 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 TALL GRASS DRIVE?
TALL GRASS DRIVE in Napa, 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 TALL GRASS DRIVE inspected?
TALL GRASS DRIVE'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 1,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. TALL GRASS DRIVE 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 TALL GRASS DRIVE?
TALL GRASS DRIVE has an NBI inventory load rating of 68.7 metric tons.
Who is responsible for maintaining TALL GRASS DRIVE?
TALL GRASS DRIVE is owned and maintained by City/Municipal Highway Agency.
How old is TALL GRASS DRIVE and does age affect safety?
TALL GRASS DRIVE 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.
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.