FHWA NBI 2024 Inspection record Public-domain dataset

STATE ROUTE 26

Carrying STATE ROUTE 26 over S. FORK MOKELUMNE RIVER

10-CAL-026-30.00, Calaveras, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
30 t Inventory load rating

Bridge Snapshot: STATE ROUTE 26

The STATE ROUTE 26 bridge in Calaveras, California carries STATE ROUTE 26 over S. FORK MOKELUMNE RIVER. It was built in 1936, making it 90 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 36.6 meters (120 feet) end to end. Daily traffic averages 750 vehicles, placing it in the lower-traffic tier of California bridges. It is owned and maintained by State 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. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 29.8 metric tons.

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

How STATE ROUTE 26 compares

▼ 1.5
Load rating vs California average (31.3 t)
Bottom 36%
Lower load rating than 64% of California bridges
106
Bridges in Calaveras · 7 in Poor condition
STATE ROUTE 26 29.8 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
78.1 / 100 - historical 50–79.9 band
Structural adequacy /55
53.6
Serviceability /30
13.0
Essentiality /15
14.4
Special reductions
−3.0

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 How the historical reference is calculated.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
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
29.8 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1936
Material
Concrete
Number of Spans
3
Structure Length
36.6 m (120 ft)
Deck Width
8.1 m (27 ft)
Owner
State Highway Agency
Avg Daily Traffic
750 vehicles/day
Structure Number
30 0022

Condition Analysis

  • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • 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 STATE ROUTE 26 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 26 against other structures in Calaveras 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 26?

STATE ROUTE 26 in Calaveras, 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 STATE ROUTE 26 inspected?

STATE ROUTE 26'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 750 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. STATE ROUTE 26 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 STATE ROUTE 26?

STATE ROUTE 26 has an NBI inventory load rating of 29.8 metric tons.

Who is responsible for maintaining STATE ROUTE 26?

STATE ROUTE 26 is owned and maintained by State Highway Agency.

How old is STATE ROUTE 26 and does age affect safety?

STATE ROUTE 26 was built in 1936, making it 90 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.