County profile · official public datasets

Newaygo County, MI

65 public highway bridges tracked in the FHWA National Bridge Inventory: 43.1% rated Good, 46.2% Fair, 10.8% Poor.

65
Public bridges
43.1%
Good condition
10.8%
Poor condition

The verdict

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

Newaygo County posts a better-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.

Top 49%
lowest Poor share in state
10.8%
Poor-condition share
65
public highway bridges
1979
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.

Newaygo County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Newaygo County ranks #41 of 83 Michigan counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 10.8%). Newaygo County, Michigan contains 65 public highway bridges. Roughly 43.1% are rated “Good,” 46.2% “Fair,” and 10.8% “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

65

Public highway bridges in Newaygo County

Good condition

43.1%

28 of 65 rated 7-9

Fair condition

46.2%

30 of 65 rated 5-6

Poor condition

10.8%

7 of 65 rated 4 or below

In-state Poor-share rank

#41 of 83

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

Condition distribution

Share of 65 NBI-tracked bridges by lowest applicable component rating.

Good
43.1% (28)
Fair
46.2% (30)
Poor
10.8% (7)

Newaygo County's Poor-condition bridges carry 925 vehicle crossings a day

That is 1.1% of the county's reported daily bridge traffic on 10.8% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 132 crossings a day against 906 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 65 of 65 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

38.5% of Newaygo County's bridges have passed the 50-year mark

25 of the 65 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 43.1% 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 64.9% of the county's Poor-condition bridge traffic

BALDWIN AVE over WHITE RIVER, built 1958, carries 600 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 925 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Newaygo County's bridges were built

65 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1950s, when 10 of the county's bridges still in the inventory were built, which is 15.4% of those with a recorded year. That cohort is now 65 to 74 years old in the 2024 inventory. Its average build year (1979) matches the Michigan average (1976).

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

How Newaygo County compares with Michigan's closest counties by inventory size

The 5 Michigan counties nearest Newaygo County in number of bridges, with their condition splits. Its 10.8% Poor share is the 4th-lowest of these 6. Its average build year of 1979 against a peer-group mean of 1976 is in line with the group.

Showing the 5 closest of 82 Michigan counties eligible for comparison.

Bridge inventory size and condition shares for Newaygo County and the 5 Michigan counties closest to it in inventory size
County Bridges Poor
Mason County 66 7.6%
Newaygo County (this page) 65 10.8%
Ontonagon County 64 15.6%
Wexford County 64 6.3%
Gladwin County 63 6.3%
Mackinac County 63 19%

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

Similar inventory size

Nearest county inventories outside MI (65 bridges here).

Similar average build year

Nearest mean year-built outside MI (1979 here).

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

All 65 Good 28 Fair 30 Poor 7

Good-condition bridges (28)

WARNER AVENUE

Good

Over: MUSKEGON RIVER

8.5 S OF FREMONT, Newaygo, MI

Built 1971 Load: 20.7 t ADT: 2,424

WARNER AVE

Good

Over: MARTIN CREEK

9.0 MI NE HESPERIA, Newaygo, MI

Built 2001 Load: 24.6 t ADT: 50

HARRISON ROAD

Good

Over: E BR HELD CREEK

0.75 MI E OF WARNER, Newaygo, MI

Built 2001 Load: 25.3 t ADT: 100

112 TH ST

Good

Over: BROOKS CREEK

12 MI SW OF FREMONT, Newaygo, MI

Built 1997 Load: 25.6 t ADT: 460

MONROE ST

Good

Over: MARTIN CREEK

5.0 MI NW OF HESPERIA, Newaygo, MI

Built 1998 Load: 26.2 t ADT: 150

M-82

Good

Over: CSX RR AND PENOYER CREEK

IN NEWAYGO, Newaygo, MI

Built 1986 Load: 27.5 t ADT: 5,811

136TH STREET

Good

Over: ROGUE RIVER

5.5 W OF M-37, Newaygo, MI

Built 2010 Load: 29.2 t ADT: 70

WARNER AVE

Good

Over: BLACK CREEK

2.7 MI SE AETNA, Newaygo, MI

Built 1988 Load: 32.1 t ADT: 100

128TH STREET

Good

Over: ROGUE RIVER

4.5 MI E OF M-37, Newaygo, MI

Built 2012 Load: 32.4 t ADT: 588

BINGHAM AVE

Good

Over: TANK CREEK

1 MI S OF BITELY, Newaygo, MI

Built 2016 Load: 33.0 t ADT: 545

14 MI RD

Good

Over: MCDUFFEE CREEK

6 MI E OF BITELY, Newaygo, MI

Built 2021 Load: 33.0 t ADT: 70

FITZGERALD AVE

Good

Over: WHITE RIVER

1 MI NE OF HESPERIA, Newaygo, MI

Built 1994 Load: 34.7 t ADT: 700

80 TH STREET

Good

Over: BUTLER CREEK

4.0 MI S OF FREMONT, Newaygo, MI

Built 2006 Load: 34.7 t ADT: 199

PEACH AVE

Good

Over: DANIALS DRAIN

6.3 MI SE GRANT, Newaygo, MI

Built 1979 Load: 36.3 t ADT: 150

NEWCOSTA AVE

Good

Over: LITTLE MUSKEGON

2 MILE NORTH OF M-46, Newaygo, MI

Built 1976 Load: 36.9 t ADT: 1,400

HESS LAKE DRIVE

Good

Over: WHEELER DRAIN

S SIDE HESS LAKE, Newaygo, MI

Built 2006 Load: 42.1 t ADT: 1,000

BASELINE RD

Good

Over: ROBINSON CREEK

0.4 MI W OF BALDWIN AVE, Newaygo, MI

Built 2019 Load: 42.8 t ADT: 75

OLD M-20(E ECHO DR

Good

Over: WHITE RIVER

1.7 MI SW OF WHITE CLOUD, Newaygo, MI

Built 2010 Load: 47.4 t ADT: 2,000

MUSKEGON DRIVE

Good

Over: LITTLE MUSKEGON RIVER

0.2 MI N CROTON AT MUSKEG, Newaygo, MI

Built 1958 Load: 49.2 t ADT: 3,300

BRIDGE STREET

Good

Over: MUSKEGON RIVER

0.2 MILES WEST OF M-37, Newaygo, MI

Built 1993 Load: 49.7 t ADT: 250

COLONIAL ROAD

Good

Over: MARQUETTE RAILROAD

ASHLAND TWP SEC 1, Newaygo, MI

Built 2019 Load: 52.5 t ADT: 500

LUCE AVE

Good

Over: WHITE RIVER

1 MI N OF AETNA, Newaygo, MI

Built 2000 Load: 52.8 t ADT: 450

14 MI RD FH30

Good

Over: LS BR PERE MARQUETTE RIV

5.5 EAST OF BITELY, Newaygo, MI

Built 2021 Load: 56.7 t ADT: 1,150

GREEN AVE

Good

Over: WHITE RIVER

4.2 MI NE OF HESPERIA, Newaygo, MI

Built 1957 Load: 58.0 t ADT: 1,000

LUCE AVENUE

Good

Over: MENA CREEK

2.5 MI N OF 1 MILE RD, Newaygo, MI

Built 2011 Load: 59.9 t ADT: 300

OLD M-20 (ECHO DR)

Good

Over: ROBINSON CREEK

AT BINGHAM AVE & ECHO RD, Newaygo, MI

Built 2023 Load: 60.3 t ADT: 2,377

58 TH ST

Good

Over: BIGELOW CREEK

4 MI NE OF NEWAYGO, Newaygo, MI

Built 2021 Load: 71.9 t ADT: 100

6 MILE RD

Good

Over: WHITE RIVER

6 MI N OF WHITE CLOUD, Newaygo, MI

Built 2009 Load: 77.4 t ADT: 50

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

Related

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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.