St. Croix County, WI
308 public highway bridges
St. Croix County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, St. Croix County, Wisconsin contains 308 public highway bridges. Roughly 53.2% are rated “Good,” 24% “Fair,” and 2.6% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Condition Distribution
All Bridges (308)
CTH Y
PoorOver: RUSH RIVER
1.3M S JCT CTH N, St. Croix, WI
LRD TROUT BROOK RD
PoorOver: WILLOW RIVER
1.3M N JCT CTH A, St. Croix, WI
CTH K
PoorOver: BR WILLOW RIVER
1.3M W JCT CTH T, St. Croix, WI
LRD 30TH AVE
PoorOver: BR RUSH RIVER
0.8M E JCT CTH T, St. Croix, WI
CTH A
PoorOver: WILLOW RIVER
0.1M S JCT CTH I, St. Croix, WI
USH 63
PoorOver: BR WILLOW RIVER
0.5M N JCT STH 64 TO E, St. Croix, WI
USH 12
PoorOver: CNW RR
3.2M E JCT CTH U (J), St. Croix, WI
IH 94 EB
PoorOver: EAU GALLE RIVER
1.5M E JCT CTH B TO N, St. Croix, WI
Read our methodology - how this data is sourced, computed, and verified.
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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.