Total bridges
82
Public highway bridges in Kanabec County
County profile · official public datasets
Kanabec County, MN
82 public highway bridges tracked in the FHWA National Bridge Inventory: 58.5% rated Good, 37.8% Fair, 3.7% Poor.
- 82
- Public bridges
- 58.5%
- Good condition
- 3.7%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Kanabec County posts a better-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.
- Top 47%
- lowest Poor share in state
- 3.7%
- Poor-condition share
- 82
- public highway bridges
- 1985
- avg year built
Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.
Kanabec County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Kanabec County ranks #41 of 87 Minnesota counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 3.7%). Kanabec County, Minnesota contains 82 public highway bridges. Roughly 58.5% are rated “Good,” 37.8% “Fair,” and 3.7% “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.
Good condition
58.5%
48 of 82 rated 7-9
Fair condition
37.8%
31 of 82 rated 5-6
Poor condition
3.7%
3 of 82 rated 4 or below
In-state Poor-share rank
#41 of 87
Among Minnesota counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 82 NBI-tracked bridges by lowest applicable component rating.
Good 58.5% (48)
Fair 37.8% (31)
Poor 3.7% (3)
Kanabec County's Poor-condition bridges carry 545 vehicle crossings a day
That is 0.6% of the county's reported daily bridge traffic on 3.7% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 182 crossings a day against 1,065 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.
Computed over the 82 of 82 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
31.7% of Kanabec County's bridges have passed the 50-year mark
26 of the 82 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 58.5% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.
Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.
One structure carries 69.7% of the county's Poor-condition bridge traffic
CSAH 12 over GROUNDHOUSE RIVER, built 1971, carries 380 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 3-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 545 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Kanabec County's bridges were built
82 bridges with a recorded construction year, grouped by decade
- 1920s 1
1920–1929
1 bridges
- 1930s 2
1930–1939
2 bridges
- 1940s 1
1940–1949
1 bridges
- 1950s 4
1950–1959
4 bridges
- 1960s
1960–1969
9 bridges
- 1970s
1970–1979
14 bridges
- 1980s
1980–1989
12 bridges
- 1990s
1990–1999
13 bridges
- 2000s
2000–2009
20 bridges
- 2010s 3
2010–2019
3 bridges
- 2020s 3
2020–2029
3 bridges
What this shows Construction peaked in the 2000s, when 20 of the county's bridges still in the inventory were built, which is 24.4% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year (1985) matches the Minnesota average (1986).
How Kanabec County compares with Minnesota's closest counties by inventory size
The 5 Minnesota counties nearest Kanabec County in number of bridges, with their condition splits. Its 3.7% Poor share is the 1st-lowest of these 6. Its average build year of 1985 against a peer-group mean of 1987 is in line with the group.
Showing the 5 closest of 86 Minnesota counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Lake County | 90 | 51.1% | 36.7% | 12.2% | 1984 |
| Cass County | 85 | 47.1% | 48.2% | 4.7% | 1985 |
| Waseca County | 83 | 28.9% | 62.7% | 8.4% | 1983 |
| Kanabec County (this page) | 82 | 58.5% | 37.8% | 3.7% | 1985 |
| McLeod County | 77 | 50.6% | 45.5% | 3.9% | 1990 |
| Wadena County | 77 | 79.2% | 16.9% | 3.9% | 1993 |
Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Kanabec County's. Source: FHWA National Bridge Inventory, 2024 release.
Nationwide counties with similar inventory size or average build year
Two NBI-derived peer sets for Kanabec County, both outside Minnesota so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside MN (82 bridges here).
- Murray County, GA · 82 bridges
- Gallatin County, IL · 82 bridges
- Thomas County, KS · 82 bridges
- Nicholas County, KY · 82 bridges
Similar average build year
Nearest mean year-built outside MN (1985 here).
- Hillsborough County, FL · avg 1985 · 840 bridges
- Lancaster County, NE · avg 1985 · 661 bridges
- Nueces County, TX · avg 1985 · 528 bridges
- Grayson County, TX · avg 1985 · 513 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (31)
T 24
FairOver: S FK GRINDSTONE RIVER
0.5 MI W OF JCT CR 84, Kanabec, MN
Built 1930 Load: 12.6 t ADT: 23
T 94
FairOver: MUD CREEK
0.2 MI W OF JCT TH 23, Kanabec, MN
Built 1957 Load: 13.1 t ADT: 13
CSAH 11
FairOver: SNAKE RIVER
0.4 MI S OF JCT CSAH 17, Kanabec, MN
Built 1988 Load: 18.6 t ADT: 1,100
CR 53
FairOver: GROUNDHOUSE RIVER
0.1 MI N OF JCT CR 55, Kanabec, MN
Built 1974 Load: 21.1 t ADT: 35
CR 77
FairOver: KNIFE RIVER
0.2 MI E OF JCT CSAH 8, Kanabec, MN
Built 1973 Load: 21.6 t ADT: 70
CSAH 3
FairOver: KNIFE RIVER
1.9 MI E OF JCT TH 47, Kanabec, MN
Built 1975 Load: 25.8 t ADT: 450
T 507
FairOver: S FK GROUNDHOUSE RIVER
0.4 MI N OF JCT CR 49, Kanabec, MN
Built 1968 Load: 26.3 t ADT: 90
CSAH 8
FairOver: KNIFE RIVER
0.4 MI S OF JCT CR 88, Kanabec, MN
Built 1967 Load: 26.5 t ADT: 275
CSAH 5
FairOver: MUD CREEK
0.3 MI S OF JCT CR 65, Kanabec, MN
Built 1969 Load: 26.8 t ADT: 360
CSAH 19
FairOver: KNIFE RIVER
0.3 MI W OF JCT CR 77, Kanabec, MN
Built 1970 Load: 29.0 t ADT: 385
MN 47
FairOver: KNIFE RIVER
7.5 MI S OF ISLE, Kanabec, MN
Built 1940 Load: 29.4 t ADT: 1,256
MN 23
FairOver: S FK GROUNDHOUSE RIVER
4.0 MI SW OF OGILVIE, Kanabec, MN
Built 1929 Load: 29.4 t ADT: 5,900
MN 65
FairOver: BERGMAN BROOK
4.2 MI S OF JCT TH 18, Kanabec, MN
Built 1930 Load: 29.4 t ADT: 1,902
MN 23
FairOver: ANN RIVER
3.5 MI W OF MORA, Kanabec, MN
Built 1951 Load: 29.4 t ADT: 5,800
CSAH 6
FairOver: ANN RIVER
0.6 MI E OF JCT CR 59, Kanabec, MN
Built 1969 Load: 31.2 t ADT: 1,100
CSAH 3
FairOver: SNOWSHOE BROOK
0.8 MI W OF JCT CSAH 11, Kanabec, MN
Built 1986 Load: 31.4 t ADT: 1,100
CSAH 12
FairOver: ANN RIVER
1.4 MI SW OF JCT CSAH 6, Kanabec, MN
Built 1981 Load: 31.4 t ADT: 590
T 507
FairOver: S FK GROUNDHOUSE RIVER
0.7 MI S OF JCT CR 49, Kanabec, MN
Built 1959 Load: 31.4 t ADT: 90
CSAH 4
FairOver: S FK GROUNDHOUSE RIVER
0.5 MI W OF JCT CR 50, Kanabec, MN
Built 1972 Load: 32.3 t ADT: 440
CSAH 6
FairOver: SNAKE RIVER
0.1 MI E OF JCT CSAH 8, Kanabec, MN
Built 1980 Load: 34.9 t ADT: 3,750
CR 88
FairOver: KNIFE RIVER
0.1 MI W OF JCT CSAH 8, Kanabec, MN
Built 2002 Load: 35.9 t ADT: 105
MN 47
FairOver: GROUNDHOUSE RIVER
0.4 MI N OF JCT TH 23, Kanabec, MN
Built 1965 Load: 36.6 t ADT: 1,613
CSAH 14
FairOver: TOZER BROOK
0.2 MI NW OF JCT CR 61, Kanabec, MN
Built 1965 Load: 36.9 t ADT: 200
MN 47
FairOver: S FK GROUNDHOUSE R
3.7 MI S OF JCT TH 23, Kanabec, MN
Built 2004 Load: 37.9 t ADT: 1,450
CSAH 15
FairOver: STREAM
2.2 MI E OF JCT TH 47, Kanabec, MN
Built 1997 Load: 37.9 t ADT: 285
MN 27
FairOver: HAY CREEK
9.0 MI E OF ISLE, Kanabec, MN
Built 2008 Load: 39.2 t ADT: 971
MN 65
FairOver: SNAKE RIVER
2.5 MI N OF JCT TH 23, Kanabec, MN
Built 1989 Load: 39.5 t ADT: 3,788
CSAH 19
FairOver: SNAKE RIVER
0.5 MI W OF JCT CSAH 11, Kanabec, MN
Built 1995 Load: 40.5 t ADT: 600
CSAH 14
FairOver: ANN RIVER
1.0 MI N OF JCT CR 61, Kanabec, MN
Built 1965 Load: 41.8 t ADT: 200
CSAH 5
FairOver: SNAKE RIVER
0.2 MI N OF JCT TH 70, Kanabec, MN
Built 1992 Load: 50.0 t ADT: 340
CSAH 3
FairOver: SNAKE RIVER
0.5 MI W OF JCT CSAH 11, Kanabec, MN
Built 1986 Load: 51.6 t ADT: 1,100
Read our methodology - how this data is sourced, computed, and verified.
Related
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges
Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.