STATE ROUTE 99 NB
Carrying STATE ROUTE 99 NB over TUOLUMNE BLVD
10-STA-099-R15.10, Stanislaus, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: STATE ROUTE 99 NB
The STATE ROUTE 99 NB bridge in Stanislaus, California carries STATE ROUTE 99 NB over TUOLUMNE BLVD. It was built in 1963, making it 63 years old today. The structure is built primarily of concrete continuous. Daily traffic averages 9,600 vehicles, placing it in the moderately-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 STATE ROUTE 99 NB 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 How the historical reference is calculated.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
- 1963
- Material
- Concrete Continuous
- Avg Daily Traffic
- 9,600 vehicles/day
- Structure Number
- 38 0096R
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 STATE ROUTE 99 NB 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 STATE ROUTE 99 NB against other structures in Stanislaus 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 STATE ROUTE 99 NB?
STATE ROUTE 99 NB in Stanislaus, California on the FHWA's 0–9 scale.
How often is STATE ROUTE 99 NB inspected?
STATE ROUTE 99 NB'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 9,600 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. STATE ROUTE 99 NB 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 STATE ROUTE 99 NB?
An inventory load rating is not recorded for STATE ROUTE 99 NB.
Who is responsible for maintaining STATE ROUTE 99 NB?
Ownership is not specified for STATE ROUTE 99 NB in the NBI.
How old is STATE ROUTE 99 NB and does age affect safety?
STATE ROUTE 99 NB was built in 1963, making it 63 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.