Polk County, MN
260 public highway bridges
Polk County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Polk County, Minnesota contains 260 public highway bridges. Roughly 65% are rated “Good,” 31.2% “Fair,” and 3.1% “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 (260)
CSAH 2
GoodOver: LOST RIVER
1.8 MI S OF JCT CSAH 28, Polk, MN
T 407
GoodOver: JUD DITCH # 75
1.9 MI N OF JCT CSAH 23, Polk, MN
T 209
PoorOver: SAND HILL RIVER
0.1 MI S OF JCT CR 232, Polk, MN
CSAH 7
PoorOver: RED RIVER OF THE NORTH
0.2 MI W OF JCT TH 220, Polk, MN
T 756
PoorOver: LOST RIVER
0.6 MI N OF JCT CSAH 33, Polk, MN
T 189
PoorOver: BR CO DITCH 66
1.7 MI N OF JCT CSAH 17, Polk, MN
CSAH 1
PoorOver: RED RIVER OF THE NORTH
2.5 MI W OF JCT TH 75, Polk, MN
CSAH 9
PoorOver: BURNHAM CREEK
0.1 MI N OF JCT CSAH 9, Polk, MN
T 530
PoorOver: BNSF RR
0.5 MI W OF JCT TH 2, Polk, MN
US 75
PoorOver: SAND HILL RIVER
0.3 MI N OF JCT TH 220, Polk, MN
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.