Lake County, MN

80 public highway bridges

Lake County Bridge Snapshot

Lake County, Minnesota contains 80 public highway bridges in the FHWA National Bridge Inventory. Roughly 51.3% are rated “Good,” 32.5% “Fair,” 11.3% “Poor,” and 11.3% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in MN are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

80
Total Bridges
51.3%
Good
11.3%
Poor
11.3%
Structurally Deficient

Condition Distribution

Good
51.3% (41)
Fair
32.5% (26)
Poor
11.3% (9)
SD
11.3% (9)

All Bridges (80)

MN 1

Good

Over: STONY RIVER

0.4 MI SE OF JCT CSAH 2, Lake, MN

Built 2020 Load: 38.9 t ADT: 420

CSAH 61

Good

Over: KNIFE RIVER

AT KNIFE RIVER TOWNSITE, Lake, MN

Built 2000 Load: 39.2 t ADT: 1,317

CSAH 15

Good

Over: E BRANCH BEAVER RIVER

1.2 MI W OF JCT CSAH 4, Lake, MN

Built 1998 Load: 39.2 t ADT: 402

CSAH 11

Good

Over: KNIFE RIVER

0.4 MI W OF JCT CSAH 12, Lake, MN

Built 2004 Load: 39.2 t ADT: 443

CSAH 3

Good

Over: E SPLIT ROCK RIVER

7.2 MI SW OF JCT CSAH 4, Lake, MN

Built 2010 Load: 39.2 t ADT: 260

CSAH 2

Good

Over: LANGLEY RIVER

8.8 MI N JCT CSAH 14, Lake, MN

Built 2007 Load: 39.2 t ADT: 719

CSAH 2

Good

Over: CLOQUET RIVER

2.3 MI S JCT CSAH 16, Lake, MN

Built 2007 Load: 39.2 t ADT: 719

CSAH 15

Good

Over: CLOQUET RIVER

1.6 MI SE OF JCT CSAH 2, Lake, MN

Built 1989 Load: 39.2 t ADT: 400

MN 169

Good

Over: SHAGAWA RIVER

0.1 MI E OF W CO LINE, Lake, MN

Built 1992 Load: 39.2 t ADT: 1,250

CSAH 2

Good

Over: NORTH SHORE MINING RR

0.9 mi W of jct CSAH 2, Lake, MN

Built 2001 Load: 40.5 t ADT: 677

T 175

Good

Over: LTVS MINING CO

6.5 MI SW JCT US 1, Lake, MN

Built 2007 Load: 40.5 t ADT: 10

CSAH 4

Good

Over: E BRANCH BEAVER RIVER

1.3 MI N OF JCT CSAH 5, Lake, MN

Built 2007 Load: 40.8 t ADT: 640

CSAH 5

Good

Over: E BRANCH BEAVER RIVER

0.2 MI E OF JCT CSAH 4, Lake, MN

Built 2007 Load: 40.8 t ADT: 996

MN 61

Good

Over: LITTLE MARAIS RIVER

0.43 MI N OF JCT CSAH 6, Lake, MN

Built 2013 Load: 41.1 t ADT: 3,000

CSAH 9

Good

Over: KNIFE RIVER

2.0 MI W OF JCT MN 61, Lake, MN

Built 2021 Load: 43.1 t ADT: 744

LAKE 29 EAST ROAD

Good

Over: DUMBBELL RIVER

13.7 MI NE OF JCT TH 1, Lake, MN

Built 1959 Load: 44.7 t ADT: 4

Shoepack Lake Rd

Good

Over: CABIN CREEK BOX CULVERT

NO DATA ENTERED, Lake, MN

Built 2010 Load: 50.5 t ADT: 25

Missabe Rd

Good

Over: ARROWHEAD CREEK BOX CULV

NO DATA ENTERED, Lake, MN

Built 2010 Load: 50.9 t ADT: 50

MN 1

Good

Over: W BRANCH BAPTISM RIVER

IN FINLAND, Lake, MN

Built 1986 Load: 54.1 t ADT: 904

TRAPPERS LAKE RD

Good

Over: DUMBBELL RIVER

12.8MI W OF JCT CSAH 7, Lake, MN

Built 2023 Load: 55.4 t ADT: 35

ARROWHEAD CR. RD

Good

Over: LITTLE ISABELLA RIVER

1.1 MI N OF JCT TH 1, Lake, MN

Built 1998 Load: 97.2 t ADT: 5

CR 102

Poor

Over: KNIFE RIVER

2.0 MI N OF JCT TH 61, Lake, MN

Built 1974 Load: 11.1 t ADT: 232

CR 705

Poor

Over: HARRIET CREEK

0.7 MI NE OF JCT FS 175, Lake, MN

Built 1967 Load: 26.1 t ADT: 36

CSAH 8

Poor

Over: CARIBOU RIVER

2.2 MI E OF JCT CSAH 7, Lake, MN

Built 1979 Load: 26.5 t ADT: 32

L.ISABELLA R. ROAD

Poor

Over: L.ISABELLA RIVER

0.8 MI W OF JCT FR 177, Lake, MN

Built 1974 Load: 26.6 t ADT: 50

TOMAHAWK ROAD

Poor

Over: ISLAND RIVER

15.4 MI NE OF JCT TH 1, Lake, MN

Built 1954 Load: 30.5 t ADT: 4

MN 61

Poor

Over: MANITOU RIVER

8.8 MI N OF JCT TH 1, Lake, MN

Built 1956 Load: 32.7 t ADT: 3,000

VICTOR LAKE ROAD

Poor

Over: LITTLE ISABELLA RIVER

0.1 MI E OF JCT TH 1, Lake, MN

Built 1975 Load: 36.9 t ADT: 5

CSAH 34

Poor

Over: STONY RIVER

5.75 MI W OF JCT TH 1, Lake, MN

Built 1972 Load: 37.3 t ADT: 137

T 14

Poor

Over: ENCAMPMENT RIVER

0.7 MI E OF JCT CSAH 3, Lake, MN

Built 1974 Load: 40.5 t ADT: 4

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial