FHWA NBI 2024 Inspection record Public-domain dataset

SNOMA RD

Carrying SNOMA RD over SOUTH CANAL

5 SO. 3.6W OF NEWELL, Butte, South Dakota

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
25 t Inventory load rating

Bridge Snapshot: SNOMA RD

The SNOMA RD bridge in Butte, South Dakota carries SNOMA RD over SOUTH CANAL. It was built in 1996, making it 30 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 10.8 meters (35 feet) end to end. Daily traffic averages 59 vehicles, placing it in the lower-traffic tier of South Dakota bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 24.5 metric tons.

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

How SNOMA RD compares

▼ 8.0
Load rating vs South Dakota average (32.5 t)
Bottom 30%
Lower load rating than 70% of South Dakota bridges
143
Bridges in Butte · 17 in Poor condition
SNOMA RD 24.5 t
South Dakota average 32.5 t

Live comparison across South Dakota.

Historical Sufficiency Rating

PlainBridge-computed
92.7 / 100 - historical 80–100 band
Structural adequacy /55
47.8
Serviceability /30
30.0
Essentiality /15
15.0
Special reductions
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 How the historical reference is calculated.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

Culvert
7/9
Good (7–9)
Inventory Load Rating
24.5 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1996
Material
Concrete
Number of Spans
3
Structure Length
10.8 m (35 ft)
Owner
County Highway Agency
Avg Daily Traffic
59 vehicles/day
Structure Number
000000010274390

How to read this record

This page shows what the last federal inspection recorded, not whether SNOMA 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 SNOMA RD against other structures in Butte and across South Dakota. South Dakota 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 SNOMA RD?

SNOMA RD in Butte, South Dakota on the FHWA's 0–9 scale.

How often is SNOMA RD inspected?

SNOMA 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 59 vehicles per day.

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

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

SNOMA RD has an NBI inventory load rating of 24.5 metric tons.

Who is responsible for maintaining SNOMA RD?

SNOMA RD is owned and maintained by County Highway Agency.

How old is SNOMA RD and does age affect safety?

SNOMA RD was built in 1996, making it 30 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.