FHWA NBI 2024 Inspection record Public-domain dataset

SOUTH BUTTE ROAD

Carrying SOUTH BUTTE ROAD over SUTTER BYPASS W CHANNEL

AT S TARKE RD, Sutter, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
20 t Inventory load rating

Bridge Snapshot: SOUTH BUTTE ROAD

The SOUTH BUTTE ROAD bridge in Sutter, California carries SOUTH BUTTE ROAD over SUTTER BYPASS W CHANNEL. It was built in 1999, making it 27 years old today. The structure is built primarily of concrete continuous and spans 4 sections, stretching 43.9 meters (144 feet) end to end. Daily traffic averages 1 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 5/9, 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 19.8 metric tons.

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

How SOUTH BUTTE ROAD compares

▼ 11.5
Load rating vs California average (31.3 t)
Bottom 12%
Lower load rating than 88% of California bridges
120
Bridges in Sutter · 15 in Poor condition
SOUTH BUTTE ROAD 19.8 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
69.4 / 100 - historical 50–79.9 band
Structural adequacy /55
30.4
Serviceability /30
26.0
Essentiality /15
15.0
Special reductions
−2.0

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 How the historical reference is calculated.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

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

Structural Details

Year Built
1999
Material
Concrete Continuous
Number of Spans
4
Structure Length
43.9 m (144 ft)
Deck Width
6.1 m (20 ft)
Owner
County Highway Agency
Avg Daily Traffic
1 vehicles/day
Structure Number
18C0128

Condition Analysis

  • The deck (driving surface) rates fair at 5/9, minor deterioration that routine maintenance should address.
  • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
  • 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 SOUTH BUTTE ROAD 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 SOUTH BUTTE ROAD against other structures in Sutter 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 SOUTH BUTTE ROAD?

SOUTH BUTTE ROAD in Sutter, California has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is SOUTH BUTTE ROAD inspected?

SOUTH BUTTE ROAD'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 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SOUTH BUTTE ROAD 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 SOUTH BUTTE ROAD?

SOUTH BUTTE ROAD has an NBI inventory load rating of 19.8 metric tons.

Who is responsible for maintaining SOUTH BUTTE ROAD?

SOUTH BUTTE ROAD is owned and maintained by County Highway Agency.

How old is SOUTH BUTTE ROAD and does age affect safety?

SOUTH BUTTE ROAD was built in 1999, making it 27 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.