FHWA NBI 2024 Inspection record Public-domain dataset

SD052

Carrying SD052 over UNNAMED CK

7.8 E JCT SD 37, Bon Homme, South Dakota

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
45 t Inventory load rating

Bridge Snapshot: SD052

The SD052 bridge in Bon Homme, South Dakota carries SD052 over UNNAMED CK. It was built in 2021, making it 5 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 7.5 meters (25 feet) end to end. Daily traffic averages 876 vehicles, placing it in the lower-traffic tier of South Dakota bridges. It is owned and maintained by State 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. Its NBI inventory load rating is 45.4 metric tons.

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

How SD052 compares

▲ 12.9
Load rating vs South Dakota average (32.5 t)
Top 16%
Higher load rating than 84% of South Dakota bridges
126
Bridges in Bon Homme · 35 in Poor condition
SD052 45.4 t
South Dakota average 32.5 t

Live comparison across South Dakota.

Historical Sufficiency Rating

PlainBridge-computed
100.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
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 How the historical reference is calculated.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
8/9
Good (7–9)
Inventory Load Rating
45.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2021
Material
Concrete
Number of Spans
2
Structure Length
7.5 m (25 ft)
Owner
State Highway Agency
Avg Daily Traffic
876 vehicles/day
Structure Number
000000005216180

How to read this record

This page shows what the last federal inspection recorded, not whether SD052 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 SD052 against other structures in Bon Homme 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 SD052?

SD052 in Bon Homme, South Dakota on the FHWA's 0–9 scale.

How often is SD052 inspected?

SD052'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 876 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SD052 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 SD052?

SD052 has an NBI inventory load rating of 45.4 metric tons.

Who is responsible for maintaining SD052?

SD052 is owned and maintained by State Highway Agency.

How old is SD052 and does age affect safety?

SD052 was built in 2021, making it 5 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.