N101-SAN PEDRO RD
Carrying N101-SAN PEDRO RD over NORTH SAN PEDRO ROAD
04-MRN-101-12.69-SRF, Marin, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: N101-SAN PEDRO RD
The N101-SAN PEDRO RD bridge in Marin, California carries N101-SAN PEDRO RD over NORTH SAN PEDRO ROAD. It was built in 1970, making it 56 years old today. The structure is built primarily of concrete continuous. Daily traffic averages 16,800 vehicles, placing it in the heavily-trafficked tier of California bridges.
The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. None of this bridge's reported major components fall into the Poor condition range.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How N101-SAN PEDRO 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 How the historical reference is calculated.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
- 1970
- Material
- Concrete Continuous
- Avg Daily Traffic
- 16,800 vehicles/day
- Structure Number
- 27 0014S
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether N101-SAN PEDRO RD 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 N101-SAN PEDRO RD 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 N101-SAN PEDRO RD?
N101-SAN PEDRO RD in Marin, California on the FHWA's 0–9 scale.
How often is N101-SAN PEDRO RD inspected?
N101-SAN PEDRO 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 16,800 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. N101-SAN PEDRO RD is currently shown as unrated condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for N101-SAN PEDRO RD?
An inventory load rating is not recorded for N101-SAN PEDRO RD.
Who is responsible for maintaining N101-SAN PEDRO RD?
Ownership is not specified for N101-SAN PEDRO RD in the NBI.
How old is N101-SAN PEDRO RD and does age affect safety?
N101-SAN PEDRO RD was built in 1970, making it 56 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.