FHWA NBI 2024 Inspection record Public-domain dataset

42520 293rd Street

Carrying 42520 293rd Street over Creek

1.2E of Scotland, Bon Homme, South Dakota

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
25 t Inventory load rating

Bridge Snapshot: 42520 293rd Street

The 42520 293rd Street bridge in Bon Homme, South Dakota carries 42520 293rd Street over Creek. It was built in 1939, making it 87 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 7.5 meters (25 feet) end to end. Daily traffic averages 138 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 3/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. 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 42520 293rd Street compares

▼ 8.0
Load rating vs South Dakota average (32.5 t)
Bottom 30%
Lower load rating than 70% of South Dakota bridges
126
Bridges in Bon Homme · 35 in Poor condition
42520 293rd Street 24.5 t
South Dakota average 32.5 t

Live comparison across South Dakota.

Historical Sufficiency Rating

PlainBridge-computed
48.7 / 100 - historical 20–49.9 band
Structural adequacy /55
7.8
Serviceability /30
26.0
Essentiality /15
14.9
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 How the historical reference is calculated.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
3/9
Poor (1–4)
Inventory Load Rating
24.5 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1939
Material
Concrete Continuous
Number of Spans
2
Structure Length
7.5 m (25 ft)
Owner
County Highway Agency
Avg Daily Traffic
138 vehicles/day
Structure Number
000000005242020

How to read this record

42520 293rd Street is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare 42520 293rd Street 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 42520 293rd Street?

42520 293rd Street in Bon Homme, South Dakota on the FHWA's 0–9 scale.

How often is 42520 293rd Street inspected?

42520 293rd Street'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 138 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. 42520 293rd Street is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for 42520 293rd Street?

42520 293rd Street has an NBI inventory load rating of 24.5 metric tons.

Who is responsible for maintaining 42520 293rd Street?

42520 293rd Street is owned and maintained by County Highway Agency.

How old is 42520 293rd Street and does age affect safety?

42520 293rd Street was built in 1939, making it 87 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.