STH 59-STH 213-MAD
Carrying STH 59-STH 213-MAD over ALLEN CREEK
3.1M E JCT STH 213 TO S, Rock, Wisconsin
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: STH 59-STH 213-MAD
The STH 59-STH 213-MAD bridge in Rock, Wisconsin carries STH 59-STH 213-MAD over ALLEN CREEK. It was built in 1981, making it 45 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 9.3 meters (31 feet) end to end. Daily traffic averages 5,900 vehicles, placing it in the moderately-trafficked tier of Wisconsin bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. 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 STH 59-STH 213-MAD compares
Live comparison across Wisconsin.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1981
- Material
- Concrete Continuous
- Number of Spans
- 3
- Structure Length
- 9.3 m (31 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 5,900 vehicles/day
- Structure Number
- B53012700000000
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 STH 59-STH 213-MAD 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 STH 59-STH 213-MAD against other structures in Rock 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 STH 59-STH 213-MAD?
STH 59-STH 213-MAD in Rock, Wisconsin on the FHWA's 0–9 scale.
How often is STH 59-STH 213-MAD inspected?
STH 59-STH 213-MAD'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 5,900 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. STH 59-STH 213-MAD 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 STH 59-STH 213-MAD?
STH 59-STH 213-MAD has an NBI inventory load rating of 32.4 metric tons.
Who is responsible for maintaining STH 59-STH 213-MAD?
STH 59-STH 213-MAD is owned and maintained by City/Municipal Highway Agency.
How old is STH 59-STH 213-MAD and does age affect safety?
STH 59-STH 213-MAD was built in 1981, making it 45 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.
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.