FHWA NBI 2024 Inspection record Public-domain dataset

THORSSON COURT

Carrying THORSSON COURT over NOVATO CREEK

0.1 MI S OF NOVATO BLVD, Marin, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
54 t Inventory load rating

Bridge Snapshot: THORSSON COURT

The THORSSON COURT bridge in Marin, California carries THORSSON COURT over NOVATO CREEK. It was built in 2000, making it 26 years old today. The structure is built primarily of steel and spans 1 section, stretching 25.2 meters (83 feet) end to end. Daily traffic averages 50 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 54.4 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How THORSSON COURT compares

▲ 23.1
Load rating vs California average (31.3 t)
Top 4%
Higher load rating than 96% of California bridges
217
Bridges in Marin · 18 in Poor condition
THORSSON COURT 54.4 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
96.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
29.0
Essentiality /15
14.8
Special reductions
−2.8

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
54.4 t
NBI inventory level (metric tons)
Overall Condition
Good

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
2000
Material
Steel
Number of Spans
1
Structure Length
25.2 m (83 ft)
Deck Width
8.9 m (29 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
50 vehicles/day
Structure Number
27C0166

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.
  • 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 THORSSON COURT 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 THORSSON COURT against other structures in Marin 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 THORSSON COURT?

THORSSON COURT in Marin, 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 THORSSON COURT inspected?

THORSSON COURT'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 50 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. THORSSON COURT 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 THORSSON COURT?

THORSSON COURT has an NBI inventory load rating of 54.4 metric tons.

Who is responsible for maintaining THORSSON COURT?

THORSSON COURT is owned and maintained by City/Municipal Highway Agency.

How old is THORSSON COURT and does age affect safety?

THORSSON COURT was built in 2000, making it 26 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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.