Total bridges
39
Public highway bridges in Missaukee County
County profile · official public datasets
39 public highway bridges tracked in the FHWA National Bridge Inventory: 48.7% rated Good, 38.5% Fair, 12.8% Poor.
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Missaukee County posts a higher-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.
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.
According to the Federal Highway Administration's 2024 National Bridge Inventory, Missaukee County ranks #49 of 83 Michigan counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 12.8%). Missaukee County, Michigan contains 39 public highway bridges. Roughly 48.7% are rated “Good,” 38.5% “Fair,” and 12.8% “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
39
Public highway bridges in Missaukee County
Good condition
48.7%
19 of 39 rated 7-9
Fair condition
38.5%
15 of 39 rated 5-6
Poor condition
12.8%
5 of 39 rated 4 or below
In-state Poor-share rank
#49 of 83
Among Michigan counties with 5+ bridges, lower share ranks better
Share of 39 NBI-tracked bridges by lowest applicable component rating.
That is 8.5% of the county's reported daily bridge traffic on 12.8% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 595 crossings a day against 241 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 39 of 39 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
15 of the 39 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 48.7% 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.
FORWARD ROAD over CLAM RIVER, built 1958, carries 1,316 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 5-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 2,977 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
39 bridges with a recorded construction year, grouped by decade
1920–1929
2 bridges
1930–1939
3 bridges
1940–1949
2 bridges
1950–1959
2 bridges
1960–1969
4 bridges
1970–1979
3 bridges
1980–1989
8 bridges
1990–1999
4 bridges
2000–2009
6 bridges
2010–2019
4 bridges
2020–2029
1 bridges
What this shows Construction peaked in the 1980s, when 8 of the county's bridges still in the inventory were built, which is 20.5% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1979) matches the Michigan average (1976).
The 5 Michigan counties nearest Missaukee County in number of bridges, with their condition splits. Its 12.8% 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 |
|---|---|---|---|---|---|
| Roscommon County | 43 | 18.6% | 81.4% | 0% | 1970 |
| Missaukee County (this page) | 39 | 48.7% | 38.5% | 12.8% | 1979 |
| Dickinson County | 37 | 43.2% | 40.5% | 16.2% | 1971 |
| Emmet County | 37 | 67.6% | 32.4% | 0% | 1988 |
| Presque Isle County | 37 | 43.2% | 45.9% | 10.8% | 1972 |
| Manistee County | 35 | 40% | 45.7% | 14.3% | 1979 |
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 Missaukee County's. Source: FHWA National Bridge Inventory, 2024 release.
Two NBI-derived peer sets for Missaukee County, both outside Michigan so the neighborhoods are not the same-state size table above.
Nearest county inventories outside MI (39 bridges here).
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.
Over: MOSQUITO CREEK
SECTION 26/27 T22N R7W, Missaukee, MI
Over: MOSQUITO CREEK
SECTION 26/35 T22N R7W, Missaukee, MI
Over: WEST BR MUSKEGON RIVER
SECTION 29 T23N R5W, Missaukee, MI
Over: W BRANCH MUSKEGON RIVER
SECTION 22/23 T23N R6W, Missaukee, MI
Over: MUSKEGON RIVER
SECTION 34 T22N R5W, Missaukee, MI
Over: W BR OF MUSKEGON RIVER
SECTION 25 T23N R6W, Missaukee, MI
Over: MARKS CREEK
SEC 5/6 T21N R7W, Missaukee, MI
Over: MOSQUITO CREEK
SECTION 21/22 T22N R7W, Missaukee, MI
Over: NORTH BRANCH CLAM RIVER
SECTION 22/23 T21N R7W, Missaukee, MI
Over: MOSQUITO CREEK
SEC 21/22 T22N R7W, Missaukee, MI
Over: MIDDLE BRANCH CLAM RIVER
SECTION 34/35 T21N R7W, Missaukee, MI
Over: CLAM RIVER
SECTION 19/20 T21N R6W, Missaukee, MI
Over: CLAM RIVER
SECTION 5/6 T21N R7W, Missaukee, MI
Over: NORTH BRANCH CLAM RIVER
SECTION 36 T21N R7W, Missaukee, MI
Over: MUSKEGON RIVER
SECTION 11 T21N R5W, Missaukee, MI
Over: HOPKINS CREEK
SEC 34/35 T24N R8W, Missaukee, MI
Over: HOPKINS CREEK
SECTION 16 T24N R8W, Missaukee, MI
Over: MANISTEE RIVER
SECTION 5 T24N R8W, Missaukee, MI
Over: BUTTERFIELD CREEK
SECTION 28/29 T22N R5W, Missaukee, MI
Read our methodology - how this data is sourced, computed, and verified.
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.