8TH AVENUE
Carrying 8TH AVENUE over HAY CK
8TH AVENUE- BELLE FOURCHE, Butte, South Dakota
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
8TH AVENUE in Butte, South Dakota sits above 68% of rated South Dakota bridges on inventory load rating (35 t), while its 2019 build year is earlier than 7% of Butte's recorded-year cohort (143 bridges).
8TH AVENUE in Butte, South Dakota is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 2019, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 8. The lowest applicable rating sets the federal condition category, so this Good result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure SD:000000010100378
POST-2000 · CONCRETE · MULTI-SPAN · CULVERT-LED · LOCAL-ADT · STANDARD-LOAD · CAT-GOOD
- POST-2000 2000+
- CONCRETE Concrete
- MULTI-SPAN 2 spans
- CULVERT-LED Culvert-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-GOOD Good
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: 8TH AVENUE
The 8TH AVENUE bridge in Butte, South Dakota carries 8TH AVENUE over HAY CK. It was built in 2019, making it 7 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 10.2 meters (33 feet) end to end. Daily traffic averages 300 vehicles, placing it in the lower-traffic tier of South Dakota bridges. It is owned and maintained by Town/Township Highway Agency.
The latest FHWA inspection records show culvert at 8/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
How 8TH AVENUE compares
Age against the county: built in 2019, earlier than 10 of Butte's 143 bridges with a recorded construction year (7%), against a county median build year of 1975. This is one of the newer structures in its county.
Live comparison across South Dakota bridges with a recorded inventory load rating (5,886 of 5,887 rated).
8TH AVENUE vs every rated South Dakota bridge
Inventory load rating (metric tons), FHWA NBI, this state
35 Top 32% higher than 68% of 5,886 bridges
rated South Dakota bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Butte inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 143 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 2019
- Material
- Concrete
- Number of Spans
- 2
- Structure Length
- 10.2 m (33 ft)
- Deck Width
- 13.7 m (45 ft)
- Owner
- Town/Township Highway Agency
- Avg Daily Traffic
- 300 vehicles/day
- Structure Number
- 000000010100378
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 8TH AVENUE 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 8TH AVENUE 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 8TH AVENUE?
8TH AVENUE in Butte, South Dakota on the FHWA's 0–9 scale.
How often is 8TH AVENUE inspected?
8TH AVENUE'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 300 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. 8TH AVENUE 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 8TH AVENUE?
8TH AVENUE has an NBI inventory load rating of 34.9 metric tons.
Who is responsible for maintaining 8TH AVENUE?
8TH AVENUE is owned and maintained by Town/Township Highway Agency.
How old is 8TH AVENUE and does age affect safety?
8TH AVENUE was built in 2019, making it 7 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.