FHWA NBI 2024 Inspection record Public-domain dataset

STH 16-STH 60-MANN

Carrying STH 16-STH 60-MANN over CRAWFISH RIVER

0.3M E JCT STH 73 TO S, Columbia, Wisconsin

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
45 t Inventory load rating

Bridge Snapshot: STH 16-STH 60-MANN

The STH 16-STH 60-MANN bridge in Columbia, Wisconsin carries STH 16-STH 60-MANN over CRAWFISH RIVER. It was built in 2005, making it 21 years old today. The structure is built primarily of concrete continuous and spans 2 sections, stretching 31.9 meters (105 feet) end to end. Daily traffic averages 3,800 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 a deck rating of 6/9, superstructure at 6/9, substructure at 7/9. 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 45.4 metric tons.

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

How STH 16-STH 60-MANN compares

▲ 12.1
Load rating vs Wisconsin average (33.3 t)
Top 6%
Higher load rating than 94% of Wisconsin bridges
191
Bridges in Columbia · 11 in Poor condition
STH 16-STH 60-MANN 45.4 t
Wisconsin average 33.3 t

Live comparison across Wisconsin.

Historical Sufficiency Rating

PlainBridge-computed
97.9 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
12.9
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 How the historical reference is calculated.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

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

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

Structural Details

Year Built
2005
Material
Concrete Continuous
Number of Spans
2
Structure Length
31.9 m (105 ft)
Deck Width
17.7 m (58 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
3,800 vehicles/day
Structure Number
B11013500000000

Condition Analysis

  • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether STH 16-STH 60-MANN 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 16-STH 60-MANN against other structures in Columbia 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 16-STH 60-MANN?

STH 16-STH 60-MANN in Columbia, Wisconsin has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is STH 16-STH 60-MANN inspected?

STH 16-STH 60-MANN'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 3,800 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. STH 16-STH 60-MANN 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 16-STH 60-MANN?

STH 16-STH 60-MANN has an NBI inventory load rating of 45.4 metric tons.

Who is responsible for maintaining STH 16-STH 60-MANN?

STH 16-STH 60-MANN is owned and maintained by City/Municipal Highway Agency.

How old is STH 16-STH 60-MANN and does age affect safety?

STH 16-STH 60-MANN was built in 2005, making it 21 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.