County profile · official public datasets

Anoka County, MN

151 public highway bridges tracked in the FHWA National Bridge Inventory: 55% rated Good, 40.4% Fair, 4.6% Poor.

151
Public bridges
55%
Good condition
4.6%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Anoka County posts a higher-than-median Poor-condition share among rated counties in the state across mid-size county bridge inventory.

51st
of 87 on Poor share
4.6%
Poor-condition share
151
public highway bridges
1990
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.

Anoka County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Anoka County ranks #51 of 87 Minnesota counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 4.6%). Anoka County, Minnesota contains 151 public highway bridges. Roughly 55% are rated “Good,” 40.4% “Fair,” and 4.6% “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.

Total bridges

151

Public highway bridges in Anoka County

Good condition

55%

83 of 151 rated 7-9

Fair condition

40.4%

61 of 151 rated 5-6

Poor condition

4.6%

7 of 151 rated 4 or below

In-state Poor-share rank

#51 of 87

Among Minnesota counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 151 NBI-tracked bridges by lowest applicable component rating.

Good
55% (83)
Fair
40.4% (61)
Poor
4.6% (7)

Anoka County's Poor-condition bridges carry 52,542 vehicle crossings a day

That is 1.7% of the county's reported daily bridge traffic on 4.6% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 7,506 crossings a day against 14,220 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 151 of 151 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

23.2% of Anoka County's bridges have passed the 50-year mark

35 of the 151 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 55% 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 36.3% of the county's Poor-condition bridge traffic

MN 65 over COON CREEK, built 1958, carries 19,067 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 7-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 52,542 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Anoka County's bridges were built

151 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1990s, when 36 of the county's bridges still in the inventory were built, which is 23.8% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year (1990) matches the Minnesota average (1986).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Anoka County compares with Minnesota's closest counties by inventory size

The 5 Minnesota counties nearest Anoka County in number of bridges, with their condition splits. Its 4.6% Poor share is the 4th-lowest of these 6. Its average build year of 1990 against a peer-group mean of 1983 is 7 years newer.

Showing the 5 closest of 86 Minnesota counties eligible for comparison.

Bridge inventory size and condition shares for Anoka County and the 5 Minnesota counties closest to it in inventory size
County Bridges Poor
Cottonwood County 151 1.3%
Anoka County (this page) 151 4.6%
Norman County 149 3.4%
Otter Tail County 149 6.7%
Carlton County 147 8.8%
Wabasha County 147 0%

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 Anoka 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 Anoka County, both outside Minnesota so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside MN (151 bridges here).

Similar average build year

Nearest mean year-built outside MN (1990 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All bridges (151)

CSAH 24

Fair

Over: RUM RIVER

0.2 MI E OF JCT CSAH 28, Anoka, MN

Built 1964 Load: 43.4 t ADT: 10,058

MSAS 313

Fair

Over: I 694

1.3 MI E OF JCT TH 47, Anoka, MN

Built 1964 Load: 43.4 t ADT: 1,835

CSAH 78

Fair

Over: COON CREEK

0.3 MI S OF JCT CSAH 16, Anoka, MN

Built 1982 Load: 44.7 t ADT: 15,741

MSAS 116

Fair

Over: US 10

0.5 MI W OF JCT TH 65, Anoka, MN

Built 1998 Load: 45.9 t ADT: 3,858

MSAS 125

Fair

Over: US 10

1.0 MI S OF JCT TH 65, Anoka, MN

Built 1992 Load: 46.0 t ADT: 7,300

M 31

Fair

Over: RICE CREEK

0.2 MI E OF JCT TH 49, Anoka, MN

Built 1991 Load: 46.1 t ADT: 430

US 10

Fair

Over: MN 65

AT THE JCT TH 65, Anoka, MN

Built 1992 Load: 46.3 t ADT: 53,000

CSAH 11

Fair

Over: US 10 RAMP; MN 47

0.5 MI N OF JCT TH 610, Anoka, MN

Built 1996 Load: 47.6 t ADT: 14,688

CSAH 14

Fair

Over: US 10

0.85 MI E JCT US10-CSAH9, Anoka, MN

Built 2000 Load: 51.2 t ADT: 31,794

US 169

Fair

Over: Mississippi River

At North County Line, Anoka, MN

Built 1929 Load: 63.5 t ADT: 49,525

CSAH 32

Fair

Over: RICE CREEK

0.1 MI E OF JCT CSAH 17, Anoka, MN

Built 1992 Load: 74.5 t ADT: 8,582

MSAS 108

Good

Over: COON CREEK

0.5 MI E OF JCT CSAH 9, Anoka, MN

Built 1978 Load: 21.7 t ADT: 1,164

MSAS 101

Good

Over: COON CREEK

0.3 MI S OF JCT CSAH 16, Anoka, MN

Built 1978 Load: 23.5 t ADT: 5,600

CSAH 14

Good

Over: COON CREEK; WEAK SOIL

0.5 MI E OF JCT TH 10, Anoka, MN

Built 2002 Load: 24.9 t ADT: 18,067

CR 52

Good

Over: COON CREEK

1.0 MI N OF JCT CR 116, Anoka, MN

Built 1983 Load: 25.1 t ADT: 4,929

CSAH 116

Good

Over: RUM RIVER OXBOW

0.1 MI E OF JCT TH 47, Anoka, MN

Built 1990 Load: 25.6 t ADT: 17,600

MSAS 104

Good

Over: US 10

3.6 MI SE OF JCT TH 242, Anoka, MN

Built 1997 Load: 29.0 t ADT: 6,656

MN 47

Good

Over: Rice Creek

1.4 MI N OF TH 694, Anoka, MN

Built 1965 Load: 29.4 t ADT: 32,500

CSAH 1

Good

Over: RICE CREEK

1.5 MI N OF JCT TH 694, Anoka, MN

Built 1988 Load: 29.8 t ADT: 11,170

CSAH 9

Good

Over: US 10

0.8 MI NW OF JCT TH 242, Anoka, MN

Built 1989 Load: 30.8 t ADT: 32,000

CSAH 14

Good

Over: GEORGE WATCH LK WATERWAY

1.1 MI S OF JCT TH 35W, Anoka, MN

Built 2008 Load: 31.5 t ADT: 9,167

CSAH 49

Good

Over: RICE CREEK

0.8 MI S OF JCT CSAH 23, Anoka, MN

Built 2006 Load: 32.3 t ADT: 13,061

MSAS 104

Good

Over: COON CREEK

0.5 MI W OF JCT CSAH 1, Anoka, MN

Built 2008 Load: 32.4 t ADT: 6,916

MSAS 124

Good

Over: COON CREEK

0.2 MI N OF JCT MSAS 127, Anoka, MN

Built 2020 Load: 32.4 t ADT: 200

CSAH 13

Good

Over: CEDAR CREEK

0.7 MI N OF JCT CSAH 22, Anoka, MN

Built 2019 Load: 32.4 t ADT: 1,340

MSAS 114

Good

Over: SAND CREEK

0.5 MI N OF JCT CSAH 11, Anoka, MN

Built 2019 Load: 32.4 t ADT: 8,900

MSAS 146

Good

Over: LAKE CHANNEL

0.15 MI N OF LKS PARKWAY, Anoka, MN

Built 2005 Load: 32.7 t ADT: 1,950

MSAS 143

Good

Over: LAKE CHANNEL

0.9 MI E OF JCT CSAH 52, Anoka, MN

Built 2005 Load: 32.7 t ADT: 7,300

M 978

Good

Over: LAKE CHANNEL

0.3 MI S OF LAKES PKWY, Anoka, MN

Built 2005 Load: 32.7 t ADT: 3,219

M 1053

Good

Over: LAKE CHANNEL

0.1 MI S OF LAKE BLVD, Anoka, MN

Built 2005 Load: 32.7 t ADT: 335

M 609

Good

Over: COON CREEK

0.5 MI NE OF JCT CR52;116, Anoka, MN

Built 2002 Load: 32.7 t ADT: 1

CR 18

Good

Over: COON CREEK

0.1 MI S OF JCT CSAH 16, Anoka, MN

Built 1990 Load: 32.7 t ADT: 11,229

CSAH 116

Good

Over: PARK ACCESS ROAD

0.3 MI E OF JCT TH 47, Anoka, MN

Built 1990 Load: 32.7 t ADT: 17,600

MSAS 141

Good

Over: MN 65

0.5 MI N JCT MN 65, Anoka, MN

Built 2007 Load: 33.1 t ADT: 2,879

MSAS 112

Good

Over: MN 65

0.5 MI SO JCT MN 65; 242, Anoka, MN

Built 2007 Load: 34.3 t ADT: 5,300

CSAH 11

Good

Over: RAILROAD

1.0 MI SW OF JCT TH 10, Anoka, MN

Built 2022 Load: 34.3 t ADT: 3,950

MSAS 120

Good

Over: US 10

2.4 MI SE OF JCT TH 242, Anoka, MN

Built 1998 Load: 35.1 t ADT: 990

MSAS 121

Good

Over: BNSF RR

0.15 MI S OF JCT MAIN ST, Anoka, MN

Built 1991 Load: 35.3 t ADT: 13,000

CSAH 31

Good

Over: US 10

0.2 MI E OF JCT MN 47, Anoka, MN

Built 2022 Load: 35.6 t ADT: 3,181

CSAH 14

Good

Over: MN 65

AT THE JCT MN 65; CSAH14, Anoka, MN

Built 2007 Load: 35.9 t ADT: 22,100

CSAH 54

Good

Over: CLEARWATER CREEK

0.25 MI S OF JCT CSAH 14, Anoka, MN

Built 1994 Load: 35.9 t ADT: 5,808

MSAS 125

Good

Over: SAND CREEK

0.2 MI N OF JCT CSAH 11, Anoka, MN

Built 1985 Load: 35.9 t ADT: 3,150

CSAH 22

Good

Over: CEDAR CREEK

1.9 MI E OF JCT CSAH 9, Anoka, MN

Built 1983 Load: 35.9 t ADT: 8,833

CSAH 85

Good

Over: TYPO CREEK

0.5 MI S OF JCT CR 76, Anoka, MN

Built 1984 Load: 35.9 t ADT: 1,057

CSAH 85

Good

Over: TYPO CREEK

0.8 MI N OF JCT CSAH 26, Anoka, MN

Built 1984 Load: 35.9 t ADT: 1,057

CR 74

Good

Over: CEDAR CREEK

0.5 MI W OF JCT TH 65, Anoka, MN

Built 1990 Load: 35.9 t ADT: 3,820

CSAH 14

Good

Over: CLEARWATER CREEK

0.5 MI W OF JCT CSAH 21, Anoka, MN

Built 1994 Load: 35.9 t ADT: 10,161

CSAH 14

Good

Over: DITCH

0.3 MI W JCT HANSON BLVD, Anoka, MN

Built 2011 Load: 36.3 t ADT: 16,983

US 10

Good

Over: RUM RIVER

0.1 MI E OF JCT TH 47, Anoka, MN

Built 2023 Load: 36.6 t ADT: 32,164

US 10

Good

Over: RUM RIVER

0.1 MI E OF JCT TH 47, Anoka, MN

Built 2022 Load: 36.9 t ADT: 32,164
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.