Total Bridges
1,188
Public highway bridges in Michigan
State profile · Above national median SD
Michigan bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Michigan — drawn straight from the FHWA National Bridge Inventory.
- 1,188
- Public bridges
- 28.4%
- Good condition
- 8.9%
- Poor condition
- 8.9%
- Structurally deficient
Good Condition
28.4%
337 bridges rated 7-9
-21.6pp vs 50% benchmark
Poor Condition
8.9%
106 bridges rated 0-4
Structurally Deficient
8.9%
106 bridges flagged for repair priority
1.9pp vs national avg 7.0%
Michigan vs national bridge condition
Michigan — Good condition share 28.4%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Michigan — Structurally deficient share 29.7%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Michigan (FHWA NBI)
Counties (83)
Alcona 8 Alger 9 Allegan 25 Alpena 3 Antrim 0 Arenac 2 Baraga 9 Barry 10 Bay 10 Benzie 3 Berrien 22 Branch 9 Calhoun 16 Cass 3 Charlevoix 3 Cheboygan 7 Chippewa 12 Clare 13 Clinton 9 Crawford 5 Delta 5 Dickinson 0 Eaton 8 Emmet 4 Genesee 15 Gladwin 6 Gogebic 11 Grand Traverse 5 Gratiot 10 Hillsdale 3 Houghton 9 Huron 4 Ingham 5 Ionia 3 Iosco 0 Iron 8 Isabella 12 Jackson 3 Kalamazoo 12 Kalkaska 0 Kent 37 Keweenaw 0 Lake 0 Lapeer 13 Leelanau 2 Lenawee 3 Livingston 6 Luce 2 Mackinac 7 Macomb 21 Manistee 2 Marquette 8 Mason 4 Mecosta 2 Menominee 2 Midland 10 Missaukee 2 Monroe 9 Montcalm 7 Montmorency 3 Muskegon 5 Newaygo 7 Oakland 49 Oceana 3 Ogemaw 0 Ontonagon 5 Osceola 3 Oscoda 1 Otsego 2 Ottawa 7 Presque Isle 2 Roscommon 5 Saginaw 4 Sanilac 1 Schoolcraft 16 Shiawassee 2 St. Clair 14 St. Joseph 8 Tuscola 29 Van Buren 17 Washtenaw 93 Wayne 460 Wexford 14
Michigan vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Michigan on the same metric.
25
Massachusetts
7.96% top marginal rate
29
Missouri
8.53% top marginal rate
26
Michigan
8.92% top marginal rate
02
Alaska
10.12% top marginal rate
42
Pennsylvania
10.50% top marginal rate
Bridges Needing Most Attention in Michigan
Six lowest-condition bridges in Michigan, ranked by composite NBI rating. Each is inspected at least every 24 months.
STEVENSON ROAD
Structurally DeficientOver: S BR PINE RIVER
0.5 MI W OF NINE MILE RD, Bay, MI
Built 1970 Load: 0.3 t ADT: 150
NO 19 ROAD
Structurally DeficientOver: MANISTEE RIVER
SECTION 28 T24N R11W, Wexford, MI
Built 1906 Load: 2.9 t ADT: 106
PARKE LANE ROAD
Structurally DeficientOver: THOROFARE CH(GROSSE ILE)
GROSSE ILETWP S/BRIDGE ST, Wayne, MI
Built 1930 Load: 3.2 t ADT: 1,365
STREICHER ROAD
PoorOver: SILVER CREEK
BROWNSTOWN S/HURON RIV DR, Wayne, MI
Built 1936 Load: 7.8 t ADT: 253
REECK ROAD
Structurally DeficientOver: SEXTON-KILFOIL DRAIN
IN ALLEN PARK, Wayne, MI
Built 1960 Load: 7.8 t ADT: 5,600
LOG ROAD
Structurally DeficientOver: SOUTH BR SWAN CREEK
BETHEL TWP SEC 8, Branch, MI
Built 1982 Load: 8.1 t ADT: 110
All Bridges in Michigan
MUSKEGON ROAD
GoodOver: MUSKEGON RIVER
SEC 10 SUMMERFIELD TWP, Clare, MI
Built 2008 Load: 15.2 t ADT: 880
FOREST ROAD 3470
GoodOver: SOUTH BRANCH PAINT RIVER
1.5 MI NW OF BEECHWOOD, Iron, MI
Built 1952 Load: 15.9 t ADT: 50
FOREST ROAD 2276
GoodOver: SILVER RIVER
6.5 MI S OF ALSTON, Houghton, MI
Built 1954 Load: 16.2 t ADT: 50
ELLISON ROAD
GoodOver: HOLMES & SPEARS DRAIN
0.25 MI W OF JOHNSON RD, Ionia, MI
Built 2014 Load: 16.8 t ADT: 250
AUTO TOUR ROUTE
GoodOver: E TO C SPILLWAY
SEC 20 T45N R13W, Schoolcraft, MI
Built 1952 Load: 17.2 t ADT: 90
STAPLETON ROAD
GoodOver: UNNAMED CREEK
SEC. 31 KENOCKEE TWP., St. Clair, MI
Built 2013 Load: 18.1 t ADT: 174
SHEARER RD
GoodOver: HOWLAND CREEK
120 RODS S OF M-61, Gladwin, MI
Built 1985 Load: 19.6 t ADT: 286
DASSEY RD
GoodOver: S BR LITTLE SUGAR RIVER
110 RODS S OF SOUTHWELL, Gladwin, MI
Built 1994 Load: 19.6 t ADT: 184
KEYSTONE ROAD N
GoodOver: GLC RR
0.1 MI N OF HAMMOND ROAD, Grand Traverse, MI
Built 2009 Load: 19.6 t ADT: 5,348
WARFIELD RD FH5231
GoodOver: PETERSON CREEK
0.7 MI N OF PETERSON TRL, Manistee, MI
Built 2012 Load: 19.8 t ADT: 200
NO 12 ROAD
GoodOver: MANTON CREEK
SECTION 29/32 T24N R9W, Wexford, MI
Built 2002 Load: 21.4 t ADT: 120
I-75 RAMP C
GoodOver: FRANK & POET DRAIN
IN TAYLOR, Wayne, MI
Built 1966 Load: 22.0 t ADT: 40,584
DENTON ROAD
GoodOver: FOWLER CREEK
CANTON N/GEDDES, Wayne, MI
Built 2001 Load: 24.0 t ADT: 352
BRYAN J DRIVE
GoodOver: CHANNEL OF HOUGHTON LK
DENTON TWP SEC 2, Roscommon, MI
Built 1975 Load: 24.3 t ADT: 300
PLANK RD
GoodOver: HAZEN CREEK
0.2 MI W OF BENNER HWY, Lenawee, MI
Built 1979 Load: 24.6 t ADT: 168
TWO MILE RD, 9TH
GoodOver: BIG CREEK
VILLAGE OF MORLEY, Mecosta, MI
Built 2010 Load: 24.6 t ADT: 30
MORTENVIEW DRIVE
GoodOver: SEXTON-KILFOIL DRAIN
IN TAYLOR, Wayne, MI
Built 1999 Load: 24.6 t ADT: 3,935
WAGNER-TAYLOR DM R
GoodOver: WEST BR FOX RIVER
10 MI NW OF SENEY, Schoolcraft, MI
Built 2019 Load: 24.9 t ADT: 10
DNR TRAIL 440
GoodOver: FOX RIVER
5.5 MI W OF LAVENDER CRNR, Schoolcraft, MI
Built 2019 Load: 24.9 t ADT: 5
TIN SHANTY ROAD
GoodOver: BLACK RIVER
2 MI S OF STURGEON VALLEY, Otsego, MI
Built 1999 Load: 25.6 t ADT: 150
CLEVELAND RD
GoodOver: BRAYTON CREEK
0.18 MI W OF 200TH AVE, Oceana, MI
Built 2015 Load: 25.9 t ADT: 400
20TH STREET
GoodOver: SCHNABLE BROOK
0.08 MI S OF 112TH AVENUE, Allegan, MI
Built 2014 Load: 26.2 t ADT: 50
FOREST ROAD 6930
GoodOver: SISSON LILLEY CREEK
5.5 MI S OF MATCHWOOD, Gogebic, MI
Built 2003 Load: 26.6 t ADT: 50
M-59
GoodOver: CLINTON RIVER
4.0 MI W OF PONTIAC, Oakland, MI
Built 1965 Load: 26.6 t ADT: 37,281
PENNSYLVANIA ROAD
GoodOver: FRANK & POET DRAIN
RIVERVIEW/STHGATE E/ALLEN, Wayne, MI
Built 2004 Load: 26.7 t ADT: 16,154
FIVE MILE ROAD
GoodOver: UPPER ROUGE RIVER
REDFORD E/BEECH-DALY, Wayne, MI
Built 1978 Load: 26.9 t ADT: 19,861
IONIA ROAD
GoodOver: SHANTY BROOK
2.5 MI N OF KALAMO, Eaton, MI
Built 1987 Load: 27.5 t ADT: 938
POYHONEN ROAD
GoodOver: MISERY RIVER
1.5 NW/M-26 NEAR WYANDOTT, Houghton, MI
Built 2004 Load: 27.9 t ADT: 5
MURPHY CREEK ROAD
GoodOver: MURPHY CREEK
1.1 MI E OF M-123, Luce, MI
Built 2023 Load: 28.2 t ADT: 5
CR 687
GoodOver: HOWLETT & CONKLIN DRAIN
0.14 MI S OF 62ND AVE, Van Buren, MI
Built 2022 Load: 28.5 t ADT: 2,913
THUMB LAKE ROAD
GoodOver: N BR BOYNE RIVER
0.7 MI E OF BOYNE FALLS, Charlevoix, MI
Built 2003 Load: 28.8 t ADT: 2,545
CHALMERS RD
GoodOver: PITTSFIELD ANN ARBOR DRN
ANN ARBOR TWP SEC 35, Washtenaw, MI
Built 1951 Load: 29.0 t ADT: 350
BATTLE ROAD
GoodOver: N BR SALT RIVER
650 FT E LOOMIS ROAD, Isabella, MI
Built 2021 Load: 29.5 t ADT: 50
COUNTY ROAD EXTN
GoodOver: BLACK RIVER
0.5 MI W OF CR 581, Marquette, MI
Built 2021 Load: 29.5 t ADT: 10
CHAPIN RD
GoodOver: LAMB CREEK
CHAPIN TWP SEC 35/36, Saginaw, MI
Built 2005 Load: 29.5 t ADT: 560
ISLAND DRIVE
GoodOver: TRAVER CREEK
0.75 MI E OF US-23 BR, Washtenaw, MI
Built 1962 Load: 29.5 t ADT: 959
US-24 NB
GoodOver: ECORSE CREEK
IN DEARBORN HTS, Wayne, MI
Built 1987 Load: 29.8 t ADT: 34,063
M-59 WB
GoodOver: MIDDLE BR CLINTON RIVER
4.2 MILES E OF M-53, Macomb, MI
Built 1996 Load: 30.8 t ADT: 31,800
28TH AVENUE
GoodOver: BRANDWINE CREEK
WAVERLY TWP SEC 3/10, Van Buren, MI
Built 2005 Load: 30.8 t ADT: 208
63RD AVE
GoodOver: E BR PAW PAW RIVER
0.19 MI NE OF DRAPE RD, Van Buren, MI
Built 2019 Load: 31.1 t ADT: 225
HAGGERTY ROAD
GoodOver: TONQUISH CREEK
CANTON N/WARREN, Wayne, MI
Built 1974 Load: 31.1 t ADT: 5,580
OLD US-41
GoodOver: LATERAL CREEK
100 FT S OF US-41/M-28, Baraga, MI
Built 2022 Load: 32.1 t ADT: 10
SHABBONA ROAD
GoodOver: WHITE CREEK I/C DRAIN
SEC 19-30 NOVESTA TWP, Tuscola, MI
Built 1972 Load: 32.1 t ADT: 335
US-24
GoodOver: SMITH CREEK
1.7 MI NE OF FLATROCK, Wayne, MI
Built 2011 Load: 32.1 t ADT: 27,700
NO 14 ROAD
GoodOver: MANTON CREEK
SECTION 33 T24N R9W, Wexford, MI
Built 2001 Load: 32.1 t ADT: 980
IRR BIA RTE 1
GoodOver: DRAINAGE TO SHUNK CREEK
SAULT STE MARIE RES., Chippewa, MI
Built 2002 Load: 32.4 t ADT: 60
IRR BIA RTE 1
GoodOver: DRAINAGE TO SHUNK CREEK
SAULTE STE MARIE RES., Chippewa, MI
Built 2002 Load: 32.4 t ADT: 60
EB METRO PARKWAY
GoodOver: CLINTON RIVER SPILLWAY
0.02 MI E OF UNION LAKE, Macomb, MI
Built 1964 Load: 32.4 t ADT: 14,905
128TH STREET
GoodOver: ROGUE RIVER
4.5 MI E OF M-37, Newaygo, MI
Built 2012 Load: 32.4 t ADT: 588
BLMFLD HILLS PKWY
GoodOver: ROUGE RIVER TRIB /N CULV
IN BLOOMFIELD HILLS, Oakland, MI
Built 1975 Load: 32.4 t ADT: 3,000
Showing 751-800 of 1,188 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |