Middle Branch Ontonagon River Bridge

Ontonagon County, Michigan

Map 

Vicinity Map

Vicinity map

Map links:

Facts 

Overview
Steel arch bridge over Middle Branch Ontonagon River on M-28
Location
Ontonagon County, Michigan
Status
Open to traffic
History
Built 1929; rehabilitated 1992
Design
Steel arch
Dimensions
Length of largest span: 149.9 ft.
Total length: 192.9 ft.
Deck width: 32.2 ft.
Recognition
Posted to the National Register of Historic Places
Approximate latitude, longitude
+46.47917, -89.09056   (decimal degrees)
46°28'45" N, 89°05'26" W   (degrees°minutes'seconds")
Inventory number
BH 20191 (Bridgehunter.com ID)
Inspection (as of 08/2006)
Deck condition rating: Good (7 out of 9)
Superstructure condition rating: Good (7 out of 9)
Substructure condition rating: Fair (5 out of 9)
Sufficiency rating: 59.7 (out of 100)
Average daily traffic (as of 2003)
1,432

Categories 

Arch (7,573)
Built 1929 (463)
Built during 1920s (4,062)
Deck arch (6,663)
Michigan (360)
NR-listed (1,486)
Ontonagon County, Michigan (2)
Open (21,685)
Owned by state (6,574)
Span length 125-175 feet (2,001)
Steel arch (263)
Total length 175-250 feet (1,792)