County profile · official public datasets

Luce County, MI

28 public highway bridges tracked in the FHWA National Bridge Inventory: 39.3% rated Good, 42.9% Fair, 17.9% Poor.

28
Public bridges
39.3%
Good condition
17.9%
Poor condition

The verdict

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

Luce County pairs a higher-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

70th
of 83 on Poor share
17.9%
Poor-condition share
28
public highway bridges
1981
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.

Luce County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Luce County ranks #70 of 83 Michigan counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 17.9%). Luce County, Michigan contains 28 public highway bridges. Roughly 39.3% are rated “Good,” 42.9% “Fair,” and 17.9% “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

28

Public highway bridges in Luce County

Good condition

39.3%

11 of 28 rated 7-9

Fair condition

42.9%

12 of 28 rated 5-6

Poor condition

17.9%

5 of 28 rated 4 or below

In-state Poor-share rank

#70 of 83

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

Condition distribution

Share of 28 NBI-tracked bridges by lowest applicable component rating.

Good
39.3% (11)
Fair
42.9% (12)
Poor
17.9% (5)

Luce County's Poor-condition bridges carry 619 vehicle crossings a day

That is 3.7% of the county's reported daily bridge traffic on 17.9% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 124 crossings a day against 242 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 28 of 28 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

35.7% of Luce County's bridges have passed the 50-year mark

10 of the 28 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 39.3% 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 92.7% of the county's Poor-condition bridge traffic

M-123 over AUGER CREEK, built 1937, carries 574 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 619 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Luce County's bridges were built

28 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 2000s, when 7 of the county's bridges still in the inventory were built, which is 25% of those with a recorded year. That cohort is now 15 to 24 years old in the 2024 inventory. Its average build year is 1981, 5 years newer than the Michigan average of 1976.

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

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

The 5 Michigan counties nearest Luce County in number of bridges, with their condition splits. Its 17.9% Poor share is the 4th-lowest of these 6. Its average build year of 1981 against a peer-group mean of 1973 is 8 years newer.

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

Bridge inventory size and condition shares for Luce County and the 5 Michigan counties closest to it in inventory size
County Bridges Poor
Ogemaw County 31 3.2%
Lake County 30 16.7%
Luce County (this page) 28 17.9%
Alcona County 27 18.5%
Benzie County 25 32%
Otsego County 25 8%

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

Similar inventory size

Nearest county inventories outside MI (28 bridges here).

Similar average build year

Nearest mean year-built outside MI (1981 here).

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

All 28 Good 11 Fair 12 Poor 5

All bridges (28)

COUNTY ROAD 412

Fair

Over: LITTLE TWO HEARTED RIVER

2.5 W OF BODI LAKE, Luce, MI

Built 1948 Load: 5.5 t ADT: 10

M-28

Fair

Over: W BR SAGE RIVER

5.5 MI E OF M-123, Luce, MI

Built 2001 Load: 23.7 t ADT: 2,127

COUNTY RD 412&414

Fair

Over: E BR TWO HEARTED RIVER

JUNCT CO 412 414 410 435, Luce, MI

Built 1993 Load: 35.5 t ADT: 40

OLD SENEY

Fair

Over: E BR OF FOX RIVER

1 MI E SCHOOLCRAFT CO LIN, Luce, MI

Built 1987 Load: 37.6 t ADT: 25

M-28

Fair

Over: E BR FOX RIVER

2.8 MI E OF SCHLCRFT COL, Luce, MI

Built 1989 Load: 43.1 t ADT: 1,763

COUNTY ROAD 407

Fair

Over: DAWSON CREEK

17 MI.N. OF NEWBERRY, Luce, MI

Built 1983 Load: 48.0 t ADT: 420

ROUTE 415

Fair

Over: TAHQUAMENON RIVER

2 MI. N. MC MILLAN, Luce, MI

Built 1974 Load: 49.8 t ADT: 40

M-28

Fair

Over: E BR SAGE RIVER

4.2 MI W OF CHIPPEWA COL, Luce, MI

Built 1959 Load: 49.9 t ADT: 2,127

M-123

Fair

Over: TAHQUAMENON RIVER

1.3 MI N OF NEWBERRY, Luce, MI

Built 1978 Load: 51.8 t ADT: 1,162

M-28

Fair

Over: E BR TEASPOON CREEK

0.9 MI NW OF M-123, Luce, MI

Built 1993 Load: 52.2 t ADT: 3,756

DOLLARVILLE ROAD

Fair

Over: TEASPOON CREEK

1.5 MI. S.OF DOLLARVILLE, Luce, MI

Built 1951 Load: 69.7 t ADT: 1,700

DEER PARK

Fair

Over: TWO HEARTED RIVER

2 M N PINE STUMP JUNCTION, Luce, MI

Built 1961 Load: 82.7 t ADT: 315

COUNTY ROAD 407

Good

Over: DEAD SUCKER RIVER

4 MI. W. MUSCALONGE LAKE, Luce, MI

Built 1991 Load: 27.9 t ADT: 60

MURPHY CREEK ROAD

Good

Over: MURPHY CREEK

1.1 MI E OF M-123, Luce, MI

Built 2023 Load: 28.2 t ADT: 5

COUNTY RD 98

Good

Over: HELMER CREEK

LAKEFIELD TWP SEC 20/29, Luce, MI

Built 2005 Load: 32.7 t ADT: 1,200

COUNTYROAD 377

Good

Over: HELMER CREEK

0.5 N OF HELMER, Luce, MI

Built 2005 Load: 34.0 t ADT: 15

COUNTY ROUTE 414

Good

Over: DAWSON CREEK

0.5 MI NE PINE STUMP JNCT, Luce, MI

Built 2007 Load: 37.3 t ADT: 40

COUNTY ROAD 377

Good

Over: HELMER CREEK

0.25 MI S OF HELMER, Luce, MI

Built 2002 Load: 39.2 t ADT: 220

COUNTY ROAD 442

Good

Over: TAHQUAMENON RIVER

2 MI N OF DANAHER, Luce, MI

Built 2009 Load: 42.8 t ADT: 20

COUNTY ROAD 500

Good

Over: LITTLE TWO HEARTED RIVER

6 MI. N. JUNCTION M-123, Luce, MI

Built 2001 Load: 43.1 t ADT: 30

M-123

Good

Over: MURPHY CREEK

9.8 MI N OF NEWBERRY, Luce, MI

Built 2010 Load: 74.2 t ADT: 890

COUNTY ROAD 410

Good

Over: TWO HEARTED RIVER

5 MI E OF MUSCALONGE LAKE, Luce, MI

Built 1977 Load: 80.0 t ADT: 30

COUNTY RD 500

Good

Over: LITTLE TWO HEARTED RIVER

3 MI N OF M-123, Luce, MI

Built 1985 Load: 97.2 t ADT: 150

SILVER CREEK ROAD

Poor

Over: SILVER CREEK

COLUMBUS TWP SEC 12, Luce, MI

Built 1970 Load: 4.2 t ADT: 5

COUNTY ROAD 418

Poor

Over: N BR TWO HEARTED RIVER

5 MI S OF MUSCALONGE, Luce, MI

Built 1935 Load: 5.5 t ADT: 10

COUNTY ROAD 421

Poor

Over: TAHQUAMENON RIVER

EAGLES NEST CAMP, Luce, MI

Built 1967 Load: 6.8 t ADT: 20

COUNTY ROAD 501

Poor

Over: LITTLE TWO HEARTED RIVER

2 MI. E. PIKE LAKE, Luce, MI

Built 1913 Load: 17.7 t ADT: 10

M-123

Poor

Over: AUGER CREEK

7.5 MI N OF NEWBERRY, Luce, MI

Built 1937 Load: 53.8 t ADT: 574

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

Related

Browse all → | Rankings →
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.