FHWA NBI 2024 Inspection record Public-domain dataset

CSAH 20

Carrying CSAH 20 over WHISKEY CREEK

0.3 MI E OF JCT TH75, Wilkin, Minnesota

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
32 t Inventory load rating

Bridge Snapshot: CSAH 20

The CSAH 20 bridge in Wilkin, Minnesota carries CSAH 20 over WHISKEY CREEK. It was built in 1968, making it 58 years old today. The structure is built primarily of steel and spans 2 sections, stretching 13.4 meters (44 feet) end to end. Daily traffic averages 58 vehicles, placing it in the lower-traffic tier of Minnesota bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show culvert at 4/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 32.4 metric tons.

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

How CSAH 20 compares

▼ 3.3
Load rating vs Minnesota average (35.7 t)
Bottom 24%
Lower load rating than 76% of Minnesota bridges
191
Bridges in Wilkin · 7 in Poor condition
CSAH 20 32.4 t
Minnesota average 35.7 t

Live comparison across Minnesota.

Historical Sufficiency Rating

PlainBridge-computed
73.0 / 100 - historical 50–79.9 band
Structural adequacy /55
30.0
Serviceability /30
28.0
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Inventory Load Rating
32.4 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1968
Material
Steel
Number of Spans
2
Structure Length
13.4 m (44 ft)
Owner
County Highway Agency
Avg Daily Traffic
58 vehicles/day
Structure Number
92317

How to read this record

CSAH 20 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 CSAH 20 against other structures in Wilkin and across Minnesota. Minnesota 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 CSAH 20?

CSAH 20 in Wilkin, Minnesota on the FHWA's 0–9 scale.

How often is CSAH 20 inspected?

CSAH 20'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 58 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. CSAH 20 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 CSAH 20?

CSAH 20 has an NBI inventory load rating of 32.4 metric tons.

Who is responsible for maintaining CSAH 20?

CSAH 20 is owned and maintained by County Highway Agency.

How old is CSAH 20 and does age affect safety?

CSAH 20 was built in 1968, making it 58 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.