FHWA NBI 2024 Inspection record Public-domain dataset

MILTON RD

Carrying MILTON RD over CALAVERAS RIVER

0.8 M E. OF JENNY LIND RD, Calaveras, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
39 t Inventory load rating

Bridge Snapshot: MILTON RD

The MILTON RD bridge in Calaveras, California carries MILTON RD over CALAVERAS RIVER. It was built in 1979, making it 47 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 53.5 meters (176 feet) end to end. Daily traffic averages 966 vehicles, placing it in the lower-traffic tier of California bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 6/9, substructure at 7/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 38.6 metric tons.

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

How MILTON RD compares

▲ 7.3
Load rating vs California average (31.3 t)
Top 15%
Higher load rating than 85% of California bridges
106
Bridges in Calaveras · 7 in Poor condition
MILTON RD 38.6 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
87.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
19.9
Essentiality /15
12.2
Special reductions
−0.1

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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
7/9
Good (7–9)
Inventory Load Rating
38.6 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1979
Material
Concrete Continuous
Number of Spans
2
Structure Length
53.5 m (176 ft)
Deck Width
8.7 m (29 ft)
Owner
County Highway Agency
Avg Daily Traffic
966 vehicles/day
Structure Number
30C0069

Condition Analysis

  • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • 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 MILTON 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 MILTON RD 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 MILTON RD?

MILTON RD in Calaveras, California has a deck rating of 5/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is MILTON RD inspected?

MILTON 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 966 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. MILTON RD 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 MILTON RD?

MILTON RD has an NBI inventory load rating of 38.6 metric tons.

Who is responsible for maintaining MILTON RD?

MILTON RD is owned and maintained by County Highway Agency.

How old is MILTON RD and does age affect safety?

MILTON RD was built in 1979, making it 47 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.