Ontonagon County, Michigan bridges

Ontonagon County has 66 bridges and culverts in the National Bridge Inventory, the oldest built in 1929. 10 (15%) are rated poor. The most common type is stringer/multi-beam or girder (53%).

Bridges: 66
Good: 38%
Fair: 47%
Poor: 15%; 10 bridges
Average age: 53.5 yrs
Posted or closed: 4

Map of bridges in Ontonagon County

Green good, amber fair, red poor. Click a marker for details.

Search bridges in Ontonagon County

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Condition

Good38%(25)

Fair47%(31)

Poor15%(10)

When they were built

Bridges built per decade. Year built as recorded in the inventory; reconstruction years are not included.

Busiest

M-64 & M-38 over Ontonagon R River RD RR
3,625 vehicles/day
Fair
M-28 over So Br Ontonagon River
2,398 vehicles/day
Good
M-28 over M Br Ontonagon River
2,303 vehicles/day
Fair
M-28|M-64 over Merryweather Creek
2,120 vehicles/day
Fair
M-64 over Cranberry River
2,117 vehicles/day
Fair

Longest

M-64 & M-38 over Ontonagon R River RD RR
1,697 ft
Fair
US-45 over E Br of Ontonagon River
383 ft
Good
M-28 over So Br Ontonagon River
309 ft
Good
M-26 over E Br Firesteel River
257 ft
Good
M-38 over W Br of Firesteel River
242 ft
Fair

Oldest

M-28 over M Br Ontonagon River
Built 1929
Fair
US-45 over Clear Creek
Built 1931
Poor
M-28|M-64 over Merryweather Creek
Built 1932
Fair
US-45 over Baltimore River
Built 1934
Fair
M-28 over Match Creek Buried
Built 1936
Fair

All bridges in Ontonagon County

Busiest first · showing 1–66 of 66

Bridges in Ontonagon County
Bridge	Location	Built	Type	Length	Daily traffic	Condition
M-64 & M-38 over Ontonagon R River RD RR No. 000000000013265	Ontonagon	2005	Stringer/Multi-beam or Girder	1,697 ft	3,625	Fair
M-28 over So Br Ontonagon River No. 000000000008488	4.7 MI W of US-45 (ewen)	1990	Stringer/Multi-beam or Girder	309 ft	2,398	Good
M-28 over M Br Ontonagon River No. 000000000008491	5.0 MI W of Houghton Col	1929	Arch - Deck	193 ft	2,303	Fair
M-28\|M-64 over Merryweather Creek No. 000000000008485	0.1 MI E of W Jet M-64	1932	Tee Beam	31 ft	2,120	Fair
M-64 over Cranberry River No. 000000000008474	5.2 MI SW of US-45	1948	Stringer/Multi-beam or Girder	144 ft	2,117	Fair
M-64 over Weigels Creek No. 000000000008477	2.9 MI SW of US-45	1945	Stringer/Multi-beam or Girder	24 ft	2,117	Fair
M-64 over Dreiss Creek No. 000000000008478	2.7 MI SW of US-45	1945	Stringer/Multi-beam or Girder	30 ft	2,117	Good
M-28 over Baltimore River No. 000000000008489	1.5 MI W of US-45	1968	Stringer/Multi-beam or Girder	139 ft	2,075	Good
M-64 over Potato River No. 000000000008476	3.6 MI SW of US-45	1952	Stringer/Multi-beam or Girder	149 ft	2,025	Fair
M-28 over Wapato Creek No. 000000000008484	0.7 MI W of W JCT M-64	1938	Tee Beam	27 ft	1,845	Poor
M-64 over Floodwood River No. 000000000008475	4.0 MI SW of US-45	1968	Stringer/Multi-beam or Girder	81 ft	1,725	Good
US-45 over Roselawn Creek No. 000000000008493	5.2 MI N of Gogebic Col	1957	Stringer/Multi-beam or Girder	99 ft	1,700	Fair
US-45 over Clear Creek No. 000000000008494	0.4 MI S of M-28	1931	Tee Beam	27 ft	1,648	Poor
US-45 over Clear Creek No. 000000000008496	1.7 MI S Bruce Crossing	1963	Culvert	21 ft	1,648	Fair
US-45 over Clear Creek No. 000000000008498	0.9 MI S Bruce Crossing	1963	Culvert	21 ft	1,648	Fair
US-45 over E Br of Ontonagon River No. 000000000008500	2.0 MI S of M-26	1958	Girder and Floorbeam System	383 ft	1,540	Good
US-45 over E Br Baltimore River No. 000000000008495	4.5 MI S Bruce Crossing	2015	Culvert	22 ft	1,450	Good
M-26 over W Br Firesteel River No. 000000000008504	1.3 MI NE of M-38	2021	Stringer/Multi-beam or Girder	193 ft	1,425	Good
M-26 over E Br Firesteel River No. 000000000008505	1.9 MI NE of M-38	2021	Stringer/Multi-beam or Girder	257 ft	1,425	Good
M-28 over W Br Ontonagon River No. 000000000008486	2.3 MI E of E JCT M-64	1965	Stringer/Multi-beam or Girder	188 ft	1,331	Fair
M-28 over Match Creek Buried No. 000000000008487	8.6 MI W of US-45	1936	Slab	26 ft	1,331	Fair
M-38 over Flintsteel River No. 000000000008503	4.0 MI NW of Greenland	1971	Stringer/Multi-beam or Girder	219 ft	1,311	Fair
M-64 over Mineral River No. 000000000008464	6.7 MI S of M-107	1939	Stringer/Multi-beam or Girder	40 ft	1,175	Fair
Platzke Road over Clear Creek No. 000000000008497	1.0 MI S Bruce Crossing	1963	Culvert	21 ft	1,122	Fair
US-45 over Baltimore River No. 000000000008499	7.4 MI N of M-28	1934	Stringer/Multi-beam or Girder	60 ft	1,122	Fair
M-64 over Pine River No. 000000000008469	4.0 MI NE of M-107	1968	Stringer/Multi-beam or Girder	54 ft	1,032	Poor
M-64 over Halfway Creek No. 000000000008471	5.5 MI NE of M-107	1968	Stringer/Multi-beam or Girder	141 ft	1,032	Fair
M-64 over Townline Creek No. 000000000008472	6.3 MI NE of M-107	1968	Stringer/Multi-beam or Girder	59 ft	1,032	Fair
M-64 over Little Cranberry River No. 000000000008473	5.8 MI SW of US-45	1948	Stringer/Multi-beam or Girder	79 ft	1,032	Fair
M-64 over Mineral River No. 000000000008468	1.0 MI NE of M-107	1941	Stringer/Multi-beam or Girder	80 ft	875	Fair
M-64 over Duck Creek No. 000000000008470	4.9 MI NE of M-107	1968	Stringer/Multi-beam or Girder	66 ft	875	Good
Old M-107 over Union River No. 000000000008508	2.5 MI W of Silver City	1976	Stringer/Multi-beam or Girder	75 ft	831	Poor
Old M-107 over Little Iron River No. 000000000008509	0.8 MI W of M-64	1967	Stringer/Multi-beam or Girder	75 ft	831	Poor
Old M-107 over Big Iron River No. 000000000008510	@ M-64	1938	Stringer/Multi-beam or Girder	140 ft	831	Poor
M-38 over W Br of Firesteel River No. 000000000008502	2.7 MI E of M-26	1958	Girder and Floorbeam System	242 ft	754	Fair
M-64 over Sleepy Creek No. 000000000008463	4.5 MI N of M-28	1960	Stringer/Multi-beam or Girder	44 ft	743	Fair
M-64 over Mineral River No. 000000000008465	4.6 MI S of M-107	1954	Stringer/Multi-beam or Girder	169 ft	500	Fair
Bond Falls Road over Mid Br Ontonagon River No. 000000000008515	4 MI E of HWY 45	1940	Stringer/Multi-beam or Girder	55 ft	400	Poor
1 Mile RD over Mile and Half Creek No. 000000000014758	1800 Ft W of Gem Hill RD	2024	Culvert	23 ft	400	Good
Main ST over Mineral River No. 000000000014633	360 Ft W of Linden ST	1955	Culvert	45 ft	250	Poor
Firesteel Road over Flintsteel River No. 000000000008518	4.5 MI E of Ontonagon	1999	Box Beam or Girders - Multiple	100 ft	240	Good
Lake Shore Road over Paddys Creek No. 000000000008519	0.5 MI E of Ontonagon	1976	Stringer/Multi-beam or Girder	58 ft	240	Good
Lake Shore Drive over Flintsteel River No. 000000000008520	4 MI E of Ontonagon	1980	Stringer/Multi-beam or Girder	97 ft	200	Good
Gardner Road FH55 over Trout Creek No. 000000000008525	3 MI N of Trout Creek	1982	Culvert	35 ft	180	Fair
Mcrae Road over S Br Ontonagon River No. 000000000008531	0.5 MI S of Ewen	1988	Box Beam or Girders - Multiple	180 ft	180	Good
Two Mile RD FH54 over Sucker Creek No. 000000000008513	3.5 MI W of HWY 45	1986	Box Beam or Girders - Multiple	35 ft	150	Good
Victoria Road over Ontonagon River No. 000000000008517	1.8 MI SW of Rockland	1977	Stringer/Multi-beam or Girder	242 ft	150	Fair
Hokens Road over Ten Mile Creek No. 000000000008522	6 MI West of Ewen	1988	Box Beam or Girders - Multiple	52 ft	150	Good
Norwich Road FH53 over Deer Creek No. 000000000008524	8 MI S of Ontonagon	1987	Culvert	23 ft	150	Good
Gardner Road over Mud Creek No. 000000000008526	6 MI S of Mass	1992	Box Beam or Girders - Multiple	60 ft	150	Good
Hoop and Holler RD over Merriweather Creek No. 000000000008529	3 MI S of Merriweather	1983	Box Beam or Girders - Multiple	50 ft	150	Good
Lakeshore Drive over Firesteel River No. 000000000008521	6 MI NE of Otonagon	1976	Box Beam or Girders - Multiple	159 ft	120	Poor
Norwich Road FH53 over W Br Ontonagon River No. 000000000008523	15 MI S of Ontonagon	1994	Box Beam or Girders - Multiple	130 ft	110	Fair
Sleepy Hollow FH54 over Bluff Creek No. 000000000008514	9 MI S of Bruce Crossing	1985	Box Beam or Girders - Multiple	55 ft	100	Fair
Gardner Road over E Branch Ontonogon River No. 000000000008527	12 MI N of Trout Creek	1954	Stringer/Multi-beam or Girder	111 ft	100	Poor
Old M-28 over Ten Mile Creek No. 000000000008516	7 MI W of Ewen	2011	Box Beam or Girders - Multiple	55 ft	50	Good
Wilderness Drive over Firesteel River No. 000000000008533	10 MI E of Ontonogon	2009	Box Beam or Girders - Multiple	65 ft	50	Good
Kangas Road over W Br Firesteel River No. 000000000008534	5 MI N of Greenland	2009	Box Beam or Girders - Multiple	65 ft	50	Good
Butterfield Lk RD over Black Creek No. 000000000014696	2.2 MI N of M-38	2022	Slab	24 ft	50	Good
Forest Road 400 over Cascade Creek No. 090701000001000	4 MI N 5 MI E of Bergland	1963	Stringer/Multi-beam or Girder	39 ft	50	Fair
Forest Road 360 over Iron River No. 090701000001021	6 MI N 4 MI W of Bergland	1972	Stringer/Multi-beam or Girder	85 ft	50	Fair
Forest Road 5250 over M Br Ontonagon River No. 090706000001015	6 MI N 5 MI E of Watersm	1954	Stringer/Multi-beam or Girder	51 ft	50	Fair
Forest Road 6930 over Cisco Br Ontonagon River No. 090706000001016	8 MI W of Paulding	1951	Tee Beam	51 ft	50	Fair
Kitzman Road over Mill Creek Diamond Creek No. 000000000008530	1 MI N of M-28	1993	Culvert	27 ft	25	Fair
Beck Road over Flintsteel River No. 000000000008532	5 MI E of Ontonagon	1987	Box Beam or Girders - Multiple	100 ft	10	Good
FR 210 over Nuthatch Creek No. 090701000014842	4.4 Miles North of M-28	2010	Stringer/Multi-beam or Girder	30 ft	6	Good

Structure types in Ontonagon County

Stringer/Multi-beam or Girder	35	53.0%
Box Beam or Girders - Multiple	13	19.7%
Culvert	9	13.6%
Tee Beam	4	6.1%
Girder and Floorbeam System	2	3.0%
Slab	2	3.0%
Arch - Deck	1	1.5%