Total bridges
54
Public highway bridges in Crawford County
County profile · official public datasets
Crawford County, MI
54 public highway bridges tracked in the FHWA National Bridge Inventory: 14.8% rated Good, 66.7% Fair, 18.5% Poor.
- 54
- Public bridges
- 14.8%
- Good condition
- 18.5%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Crawford County pairs a higher-than-median Poor-condition share among rated counties in the state with an older average build year than the state inventory.
- 73rd
- of 83 on Poor share
- 18.5%
- Poor-condition share
- 54
- public highway bridges
- 1971
- 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.
Crawford County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Crawford County ranks #73 of 83 Michigan counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 18.5%). Crawford County, Michigan contains 54 public highway bridges. Roughly 14.8% are rated “Good,” 66.7% “Fair,” and 18.5% “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
14.8%
8 of 54 rated 7-9
Fair condition
66.7%
36 of 54 rated 5-6
Poor condition
18.5%
10 of 54 rated 4 or below
In-state Poor-share rank
#73 of 83
Among Michigan counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 54 NBI-tracked bridges by lowest applicable component rating.
Good 14.8% (8)
Fair 66.7% (36)
Poor 18.5% (10)
Crawford County's Poor-condition bridges carry 28,800 vehicle crossings a day
That is 18.8% of the county's reported daily bridge traffic on 18.5% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 2,880 crossings a day against 969 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 54 of 54 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
64.8% of Crawford County's bridges have passed the 50-year mark
35 of the 54 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 14.8% 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 20.4% of the county's Poor-condition bridge traffic
I-75 SB over LAKE STATE RR, built 1961, carries 5,877 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 10-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 28,800 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Crawford County's bridges were built
54 bridges with a recorded construction year, grouped by decade
- 1900s 1
1900–1909
1 bridges
- 1920s 1
1920–1929
1 bridges
- 1930s 2
1930–1939
2 bridges
- 1940s 1
1940–1949
1 bridges
- 1950s 1
1950–1959
1 bridges
- 1960s
1960–1969
25 bridges
- 1970s 8
1970–1979
8 bridges
- 1980s 2
1980–1989
2 bridges
- 1990s 9
1990–1999
9 bridges
- 2000s 1
2000–2009
1 bridges
- 2010s 2
2010–2019
2 bridges
- 2020s 1
2020–2029
1 bridges
What this shows Construction peaked in the 1960s, when 25 of the county's bridges still in the inventory were built, which is 46.3% of those with a recorded year. That cohort is now 55 to 64 years old in the 2024 inventory. Its average build year is 1971, 5 years older than the Michigan average of 1976.
How Crawford County compares with Michigan's closest counties by inventory size
The 5 Michigan counties nearest Crawford County in number of bridges, with their condition splits. Its 18.5% Poor share is the 5th-lowest of these 6. Its average build year of 1971 against a peer-group mean of 1969 is in line with the group.
Showing the 5 closest of 82 Michigan counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Houghton County | 58 | 63.8% | 32.8% | 3.4% | 1984 |
| Iron County | 54 | 20.4% | 59.3% | 20.4% | 1967 |
| Schoolcraft County | 54 | 27.8% | 66.7% | 5.6% | 1967 |
| Crawford County (this page) | 54 | 14.8% | 66.7% | 18.5% | 1971 |
| Alger County | 53 | 30.2% | 58.5% | 11.3% | 1956 |
| Cass County | 52 | 25% | 59.6% | 15.4% | 1970 |
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 Crawford 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 Crawford County, both outside Michigan so the neighborhoods are not the same-state size table above.
Similar inventory size
Nearest county inventories outside MI (54 bridges here).
- Rio Blanco County, CO · 54 bridges
- Brantley County, GA · 54 bridges
- Jones County, GA · 54 bridges
- Larue County, KY · 54 bridges
Similar average build year
Nearest mean year-built outside MI (1971 here).
- Baltimore County, MD · avg 1971 · 783 bridges
- Washington County, PA · avg 1971 · 655 bridges
- Linn County, OR · avg 1971 · 566 bridges
- Monmouth County, NJ · avg 1971 · 505 bridges
Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.
Fair-condition bridges (36)
STEPHAN BRIDGE RD
FairOver: AU SABLE RIVER
7.0 MI NE OF GRAYLING, Crawford, MI
Built 1900 Load: 14.9 t ADT: 560
FLETCHER RD
FairOver: US-127 NB
2.4 MI NE OF ROSCOMMON CO, Crawford, MI
Built 1967 Load: 23.0 t ADT: 200
FLETCHER RD
FairOver: US-127 SB
2.4 MI NE OF ROSCOMMON CO, Crawford, MI
Built 1967 Load: 26.2 t ADT: 200
SMITH BRIDGE ROAD
FairOver: SOUTH BR. AU SABLE RIVER
SEC. 27 SOUTH BRANCH TWP., Crawford, MI
Built 1995 Load: 30.8 t ADT: 30
7 MILE RD (CHENEY
FairOver: I-75 NB
7.0 MI S OF GRAYLING, Crawford, MI
Built 1970 Load: 31.4 t ADT: 800
7 MILE RD (CHENEY)
FairOver: I-75 SB
7.0 MI S OF GRAYLING, Crawford, MI
Built 1970 Load: 33.4 t ADT: 80
N DOWN RIVER RD
FairOver: I-75
1.0 MI N OF M-72, Crawford, MI
Built 1961 Load: 34.7 t ADT: 780
MCMASTERS BRIDGERD
FairOver: AU SABLE RIVER
16 MI E OF GRAYLING, Crawford, MI
Built 1990 Load: 36.0 t ADT: 199
I-75 SB
FairOver: E BR AU SABLE RIVER
2.4 MI N OF M-72, Crawford, MI
Built 1961 Load: 36.9 t ADT: 7,158
M-72
FairOver: S BR AU SABLE RIVER
4.4 MI W OF OSCODA COL, Crawford, MI
Built 1958 Load: 37.3 t ADT: 2,140
I-75 SB
FairOver: US-127 NB
5.3 MI S OF GRAYLING, Crawford, MI
Built 1962 Load: 38.9 t ADT: 9,649
I-75 NB
FairOver: E BR AU SABLE RIVER
2.4 MI N OF M-72, Crawford, MI
Built 1961 Load: 39.2 t ADT: 7,158
I-75BL M-72
FairOver: AU SABLE RIVER
IN GRAYLING, Crawford, MI
Built 1935 Load: 41.1 t ADT: 13,375
I-75 NB
FairOver: LEWISTON GRADE ROAD
3.3 MI N OF M-72, Crawford, MI
Built 1961 Load: 41.5 t ADT: 7,158
I-75 SB
FairOver: LEWISTON GRADE ROAD
3.3 MI N OF M-72, Crawford, MI
Built 1961 Load: 41.5 t ADT: 7,158
N HIGGINS LAKE RD
FairOver: US-127
AT ROSCOMMON CO LINE, Crawford, MI
Built 1967 Load: 41.8 t ADT: 160
4 MI RD
FairOver: I-75
4.0 MI S OF GRAYLING, Crawford, MI
Built 1961 Load: 42.1 t ADT: 180
M-72
FairOver: MANISTEE RIVER
7.4 MI W OF GRAYLING, Crawford, MI
Built 1932 Load: 42.8 t ADT: 6,618
CHASE BRIDGE RD
FairOver: S BR AU SABLE RIVER
18.0 MI SE OF GRAYLING, Crawford, MI
Built 1968 Load: 44.1 t ADT: 286
NB I-75 BL
FairOver: I-75 SB
@ S JCT I-75 BL, Crawford, MI
Built 1961 Load: 44.7 t ADT: 4,810
I-75 SB
FairOver: AU SABLE RIVER
0.7 MI N OF M-72, Crawford, MI
Built 1960 Load: 47.3 t ADT: 5,877
I-75 NB
FairOver: AU SABLE RIVER
0.7 MI N OF M-72, Crawford, MI
Built 1960 Load: 47.6 t ADT: 5,877
COUNTY RD 612
FairOver: MANISTEE RIVER
5.0 MI SW OF FREDERIC, Crawford, MI
Built 1920 Load: 48.6 t ADT: 250
HULBERT ROAD
FairOver: AU SABLE RIVER
1 MI N OF FREDERIC, Crawford, MI
Built 1993 Load: 50.9 t ADT: 150
WAKELEY BRIDGE RD
FairOver: AU SABLE RIVER
10.5 MI E OF GRAYLING, Crawford, MI
Built 2022 Load: 52.2 t ADT: 648
STECKERT BRIDGE RD
FairOver: SOUTH BRANCH AU SABLE
10 MI SE OF GRAYLING, Crawford, MI
Built 1979 Load: 52.2 t ADT: 150
KINLEY ROAD
FairOver: E BR AU SABLE RIVER
0.9 MI E OF BRIGGS ROAD, Crawford, MI
Built 1989 Load: 52.5 t ADT: 50
N DOWN RIVER RD
FairOver: N BR AU SABLE RIVER
9.0 MI SE OF LOVELLS, Crawford, MI
Built 1964 Load: 53.5 t ADT: 287
OLE DAM ROAD
FairOver: AUSABLE RIVER
0.5 MILES N. OF M-72, Crawford, MI
Built 1977 Load: 57.7 t ADT: 100
I-75 SB
FairOver: OLD US 27
6.0 MI S OF GRAYLING, Crawford, MI
Built 1970 Load: 59.0 t ADT: 11,000
M-72 & M-93
FairOver: AU SABLE RIVER
IN GRAYLING, Crawford, MI
Built 1993 Load: 59.3 t ADT: 11,731
POLLAK BRIDGE ROAD
FairOver: AU SABLE
1 MI NW GRAYLING, Crawford, MI
Built 1987 Load: 63.5 t ADT: 50
COUNTY RD 612
FairOver: BIG CREEK
4.0 N.E. OF LOVELLS, Crawford, MI
Built 1993 Load: 64.2 t ADT: 731
I-75 NB
FairOver: OLD US 27
6.0 MI S OF GRAYLING, Crawford, MI
Built 1970 Load: 67.7 t ADT: 11,000
CAMERON BRIDGE RD
FairOver: MANISTEE RIVER
4 MI W OF FREDERIC, Crawford, MI
Built 1993 Load: 71.9 t ADT: 200
TANK SITE NO 2
FairOver: E BR AU SABLE RIVER
0.52 MI S OF CO ROAD 612, Crawford, MI
Built 1998 Load: 72.3 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.