Total bridges
65
Public highway bridges in Newaygo County
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.
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
- 1920s
1920–1929
6 bridges
- 1930s 3
1930–1939
3 bridges
- 1950s
1950–1959
10 bridges
- 1960s 3
1960–1969
3 bridges
- 1970s
1970–1979
9 bridges
- 1980s
1980–1989
7 bridges
- 1990s
1990–1999
7 bridges
- 2000s
2000–2009
9 bridges
- 2010s
2010–2019
7 bridges
- 2020s
2020–2029
4 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).
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.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Mason County | 66 | 39.4% | 53% | 7.6% | 1977 |
| Newaygo County (this page) | 65 | 43.1% | 46.2% | 10.8% | 1979 |
| Ontonagon County | 64 | 37.5% | 46.9% | 15.6% | 1970 |
| Wexford County | 64 | 26.6% | 67.2% | 6.3% | 1986 |
| Gladwin County | 63 | 47.6% | 46% | 6.3% | 1981 |
| Mackinac County | 63 | 25.4% | 55.6% | 19% | 1966 |
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).
- Marion County, AR · 65 bridges
- Newton County, AR · 65 bridges
- Searcy County, AR · 65 bridges
- Sierra County, CA · 65 bridges
Similar average build year
Nearest mean year-built outside MI (1979 here).
- Pima County, AZ · avg 1979 · 1,150 bridges
- Jefferson County, KY · avg 1979 · 662 bridges
- Spartanburg County, SC · avg 1979 · 638 bridges
- McPherson County, KS · avg 1979 · 586 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (30)
11 MILE ROAD
FairOver: BIG S BR PERE MARQUETTE
7.0 MI SW OF BITELY, Newaygo, MI
Built 1958 Load: 18.8 t ADT: 600
13 MI RD FH30
FairOver: MCDUFFEE CREEK
8.5 MI E OF BITELY, Newaygo, MI
Built 1934 Load: 20.1 t ADT: 800
CROSWELL AVE
FairOver: BIG S BR PERE MARQUETTE
7.0 MI SW OF BITELY, Newaygo, MI
Built 1952 Load: 20.4 t ADT: 100
SPRUCE AVE
FairOver: FIVE MILE CREEK
2.6 MI NE OF WHITE CLOUD, Newaygo, MI
Built 1954 Load: 20.7 t ADT: 450
DICKINSON RD
FairOver: BEAVER CREEK
1 MI S OF VOLNEY, Newaygo, MI
Built 1925 Load: 24.0 t ADT: 100
WARNER AVE
FairOver: MARTIN CREEK
4 MI N OF AETNA, Newaygo, MI
Built 2001 Load: 24.0 t ADT: 50
DICKINSON AVE FH32
FairOver: WHITE RIVER
2.0 MILE NE OF HESPERIA, Newaygo, MI
Built 1962 Load: 24.3 t ADT: 1,300
DICKINSON AVE
FairOver: S BR PERE MARQUETTE RIV
3 MI N OF TROY, Newaygo, MI
Built 1959 Load: 25.6 t ADT: 200
13 MILE RD FH28
FairOver: BIG S BR PERE MARQUETTE
5 MI W OF BITELY, Newaygo, MI
Built 1958 Load: 28.2 t ADT: 350
17 MILE RD
FairOver: LSBR PERE MARQUETTE
6 MI NE OF BITELY, Newaygo, MI
Built 2000 Load: 28.2 t ADT: 100
WALNUT AVE
FairOver: LS BR PERE MARQUETTE RIV
8 MI NE OF BITELY, Newaygo, MI
Built 1977 Load: 29.8 t ADT: 150
120 TH ST
FairOver: ROGUE RIVER
4 MI E OF GRANT, Newaygo, MI
Built 1989 Load: 31.8 t ADT: 1,800
OAK AVE
FairOver: MCDUFFEE CREEK
9 MI SE OF BITELY, Newaygo, MI
Built 1977 Load: 33.4 t ADT: 250
M-20
FairOver: WHITE RIVER
6.5 MI E OF HESPERIA, Newaygo, MI
Built 1970 Load: 36.0 t ADT: 4,400
MOORE RD
FairOver: CROCKERY CREEK
3 MI S OF GRANT, Newaygo, MI
Built 1986 Load: 36.3 t ADT: 100
M-37
FairOver: CSX RR PENOYER CREEK
IN NEWAYGO, Newaygo, MI
Built 1984 Load: 36.6 t ADT: 6,835
FERRIS RD
FairOver: CROCKERY CREEK
2.5 MI S OF GRANT, Newaygo, MI
Built 1985 Load: 37.3 t ADT: 100
M-120
FairOver: BRATON CREEK
4.7 MI S OF HESPERIA, Newaygo, MI
Built 1935 Load: 40.2 t ADT: 5,638
WARNER AVE
FairOver: WILLIAMS CREEK
4.2 MI S OF FREMONT, Newaygo, MI
Built 1927 Load: 42.8 t ADT: 3,000
M-20 (PINE HILL)
FairOver: WHITE RIVER
IN WHITE CLOUD, Newaygo, MI
Built 2005 Load: 44.1 t ADT: 2,995
M-37
FairOver: MUSKEGON RIVER
IN NEWAYGO, Newaygo, MI
Built 1953 Load: 45.4 t ADT: 15,989
CROTON DRIVE
FairOver: MUSKEGON RIVER
0.6 MI SW OF CROTON, Newaygo, MI
Built 1963 Load: 46.0 t ADT: 2,900
WALNUT AVE
FairOver: LS BR PERE MARQUETTE RIV
0.25 MI N OF 14 MILE RD, Newaygo, MI
Built 1980 Load: 51.8 t ADT: 150
22 MILE ROAD
FairOver: ROGUE RIVER
KENT CO LINE 5.5 E OF M37, Newaygo, MI
Built 1970 Load: 62.9 t ADT: 800
M-37
FairOver: WHITE RIVER
0.3 MI S OF WHITE CLOUD, Newaygo, MI
Built 1928 Load: 64.2 t ADT: 6,100
OLD M-20
FairOver: WHITE RIVER
0.8 E OF M-37, Newaygo, MI
Built 1939 Load: 69.3 t ADT: 1,028
COMSTOCK AVE
FairOver: BEAVER CREEK
0.75 MI N OF 8 MILE, Newaygo, MI
Built 1975 Load: 86.8 t ADT: 1,300
MCCELLAND AVE
FairOver: CROCKERY CREEK
0.25 MI N OF MOORE ST, Newaygo, MI
Built 1975 Load: 97.2 t ADT: 600
OSBORN AVENUE
FairOver: CEDAR CREEK
2 MI N OF 13 MILE RD, Newaygo, MI
Built 1959 Load: 97.2 t ADT: 50
VAN BUREN STREET
FairOver: S BR WHITE RIVER
1 MI E OF EVERGREEN RD, Newaygo, MI
Built 1960 Load: 97.2 t ADT: 50
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.