LRD TROUT BROOK RD
Carrying LRD TROUT BROOK RD over WILLOW RIVER
1.3M N JCT CTH A, St. Croix, Wisconsin
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: LRD TROUT BROOK RD
The LRD TROUT BROOK RD bridge in St. Croix, Wisconsin carries LRD TROUT BROOK RD over WILLOW RIVER. It was built in 1975, making it 51 years old today. The structure is built primarily of prestressed concrete and spans 3 sections, stretching 33.1 meters (109 feet) end to end. Daily traffic averages 920 vehicles, placing it in the lower-traffic tier of Wisconsin bridges. It is owned and maintained by Town/Township Highway Agency.
The latest FHWA inspection records show a deck rating of 4/9, superstructure at 6/9, substructure at 5/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 13.0 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How LRD TROUT BROOK RD 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 How the historical reference is calculated.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
- 1975
- Material
- Prestressed Concrete
- Number of Spans
- 3
- Structure Length
- 33.1 m (109 ft)
- Deck Width
- 9.6 m (31 ft)
- Owner
- Town/Township Highway Agency
- Avg Daily Traffic
- 920 vehicles/day
- Structure Number
- P55014600000000
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
- • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • At 5/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
How to read this record
LRD TROUT BROOK RD 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 LRD TROUT BROOK RD against other structures in St. Croix 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 LRD TROUT BROOK RD?
LRD TROUT BROOK RD in St. Croix, Wisconsin has a deck rating of 4/9, superstructure rating of 6/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is LRD TROUT BROOK RD inspected?
LRD TROUT BROOK RD'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 920 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. LRD TROUT BROOK RD 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 LRD TROUT BROOK RD?
LRD TROUT BROOK RD has an NBI inventory load rating of 13.0 metric tons.
Who is responsible for maintaining LRD TROUT BROOK RD?
LRD TROUT BROOK RD is owned and maintained by Town/Township Highway Agency.
How old is LRD TROUT BROOK RD and does age affect safety?
LRD TROUT BROOK RD was built in 1975, making it 51 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.