FHWA NBI 2024 Inspection record Public-domain dataset

CTH RK

Carrying CTH RK over DUCK CREEK

AT DUCK CREEK, Brown, Wisconsin

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
36 t Inventory load rating

Bridge Snapshot: CTH RK

The CTH RK bridge in Brown, Wisconsin carries CTH RK over DUCK CREEK. It was built in 2011, making it 15 years old today. The structure is built primarily of prestressed concrete continuous and spans 2 sections, stretching 58.0 meters (190 feet) end to end. Daily traffic averages 11,730 vehicles, placing it in the heavily-trafficked tier of Wisconsin bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 36.0 metric tons.

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

How CTH RK compares

▲ 2.7
Load rating vs Wisconsin average (33.3 t)
Top 38%
Higher load rating than 62% of Wisconsin bridges
478
Bridges in Brown · 18 in Poor condition
CTH RK 36.0 t
Wisconsin average 33.3 t

Live comparison across Wisconsin.

Historical Sufficiency Rating

PlainBridge-computed
94.5 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
29.0
Essentiality /15
10.5
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 How the historical reference is calculated.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

Deck
6/9
Fair (5–6)
Superstructure
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
36.0 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
2011
Material
Prestressed Concrete Continuous
Number of Spans
2
Structure Length
58.0 m (190 ft)
Deck Width
13.9 m (46 ft)
Owner
County Highway Agency
Avg Daily Traffic
11,730 vehicles/day
Structure Number
B05065300000000

Condition Analysis

  • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • The superstructure (beams and supports above the deck) rates good at 8/9, with no significant deterioration on file.
  • The substructure (piers and abutments) is in good condition (8/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether CTH RK 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 CTH RK against other structures in Brown and across Wisconsin. Wisconsin 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 CTH RK?

CTH RK in Brown, Wisconsin has a deck rating of 6/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is CTH RK inspected?

CTH RK'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 11,730 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. CTH RK is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for CTH RK?

CTH RK has an NBI inventory load rating of 36.0 metric tons.

Who is responsible for maintaining CTH RK?

CTH RK is owned and maintained by County Highway Agency.

How old is CTH RK and does age affect safety?

CTH RK was built in 2011, making it 15 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.