FHWA NBI 2024 Inspection record Public-domain dataset

BARBER AVE

Carrying BARBER AVE over CORTE MADERA CREEK

0.1 MI E OF FRANCIS DRAKE, Marin, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
15 t Inventory load rating

Bridge Snapshot: BARBER AVE

The BARBER AVE bridge in Marin, California carries BARBER AVE over CORTE MADERA CREEK. It was built in 1930, making it 96 years old today. The structure is built primarily of concrete continuous and spans 4 sections, stretching 34.9 meters (115 feet) end to end. Daily traffic averages 1,500 vehicles, placing it in the moderately-trafficked 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 5/9, substructure at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 15.2 metric tons.

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

How BARBER AVE compares

▼ 16.1
Load rating vs California average (31.3 t)
Bottom 3%
Lower load rating than 97% of California bridges
217
Bridges in Marin · 18 in Poor condition
BARBER AVE 15.2 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
47.4 / 100 - historical 20–49.9 band
Structural adequacy /55
21.8
Serviceability /30
11.0
Essentiality /15
14.6
Special reductions
0

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 How the historical reference is calculated.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
5/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
15.2 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1930
Material
Concrete Continuous
Number of Spans
4
Structure Length
34.9 m (115 ft)
Deck Width
11.1 m (36 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
1,500 vehicles/day
Structure Number
27C0073

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 fair at 5/9, minor deterioration that routine maintenance should address.
  • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether BARBER AVE 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 BARBER AVE 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 BARBER AVE?

BARBER AVE in Marin, California has a deck rating of 7/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is BARBER AVE inspected?

BARBER AVE'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 1,500 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. BARBER AVE is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for BARBER AVE?

BARBER AVE has an NBI inventory load rating of 15.2 metric tons.

Who is responsible for maintaining BARBER AVE?

BARBER AVE is owned and maintained by City/Municipal Highway Agency.

How old is BARBER AVE and does age affect safety?

BARBER AVE was built in 1930, making it 96 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.