FHWA NBI 2024 Inspection record Public-domain dataset

STH 93 NB & SB

Carrying STH 93 NB & SB over ELK CREEK

0.3M S JCT STH 121, Trempealeau, Wisconsin

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
34 t Inventory load rating

Bridge Snapshot: STH 93 NB & SB

The STH 93 NB & SB bridge in Trempealeau, Wisconsin carries STH 93 NB & SB over ELK CREEK. It was built in 2014, making it 12 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 48.7 meters (160 feet) end to end. Daily traffic averages 7,300 vehicles, placing it in the moderately-trafficked tier of Wisconsin bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 8/9, substructure at 8/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 34.3 metric tons.

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

How STH 93 NB & SB compares

▲ 1.0
Load rating vs Wisconsin average (33.3 t)
Top 47%
Higher load rating than 53% of Wisconsin bridges
260
Bridges in Trempealeau · 30 in Poor condition
STH 93 NB & SB 34.3 t
Wisconsin average 33.3 t

Live comparison across Wisconsin.

Historical Sufficiency Rating

PlainBridge-computed
97.3 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
12.3
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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
34.3 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2014
Material
Prestressed Concrete
Number of Spans
3
Structure Length
48.7 m (160 ft)
Deck Width
16.8 m (55 ft)
Owner
State Highway Agency
Avg Daily Traffic
7,300 vehicles/day
Structure Number
B61021100000000

Condition Analysis

  • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
  • At 8/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) rates good at 8/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether STH 93 NB & SB 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 93 NB & SB against other structures in Trempealeau 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 93 NB & SB?

STH 93 NB & SB in Trempealeau, Wisconsin has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is STH 93 NB & SB inspected?

STH 93 NB & SB'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 7,300 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. STH 93 NB & SB is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for STH 93 NB & SB?

STH 93 NB & SB has an NBI inventory load rating of 34.3 metric tons.

Who is responsible for maintaining STH 93 NB & SB?

STH 93 NB & SB is owned and maintained by State Highway Agency.

How old is STH 93 NB & SB and does age affect safety?

STH 93 NB & SB was built in 2014, making it 12 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.