|
instanceOf
|
road bridge
→
suspension bridge
→
|
|
carries
|
Interstate 75
NERFINISHED
→
vehicular traffic
→
|
|
connects
|
Lower Peninsula of Michigan
→
Upper Peninsula of Michigan
→
|
|
connectsCity
|
Mackinaw City, Michigan
→
St. Ignace, Michigan
→
|
|
constructionStartDate
|
1954
→
|
|
country
|
United States
→
|
|
crosses
|
Straits of Mackinac
→
|
|
crossesBodyOfWaterBetween
|
Lake Huron
NERFINISHED
→
Lake Michigan
→
|
|
deckType
|
steel
→
|
|
designer
|
David B. Steinman
→
|
|
engineer
|
David B. Steinman
→
|
|
hasAnnualEvent
|
Mackinac Bridge Walk
→
|
|
hasClearanceBelow
|
approximately 155 feet at center span
→
|
|
hasOwner
|
State of Michigan
→
|
|
hasTollBoothsAt
|
Mackinaw City, Michigan
→
St. Ignace, Michigan
→
|
|
hasTowerHeight
|
approximately 168 meters
→
approximately 552 feet
→
|
|
hasType
|
suspension bridge with truss spans
→
|
|
isAmong
|
longest suspension bridges in the world
→
|
|
isIconOf
|
State of Michigan
→
|
|
locatedIn
|
Michigan
→
Straits of Mackinac region
→
|
|
locatedInTimeZone
|
Eastern Time Zone on north end
→
Eastern Time Zone on south end
→
|
|
mainSpanLength
|
approximately 1,158 meters
→
approximately 3,800 feet
→
|
|
maintainedBy
|
Mackinac Bridge Authority
→
|
|
material
|
steel
→
|
|
nickname
|
Big Mac
→
Mighty Mac
→
|
|
numberOfLanes
|
4
→
|
|
opened
|
1957-11-01
→
|
|
openedBy
|
Governor G. Mennen Williams
→
|
|
openedToTraffic
|
1957
→
|
|
openingYear
|
1957
→
|
|
partOf
|
Lake Michigan–Huron waterway crossing
→
|
|
regionServed
|
Great Lakes region
→
|
|
symbolizes
|
connection between Michigan peninsulas
→
|
|
toll
|
yes
→
|
|
totalLength
|
approximately 26,372 feet
→
approximately 8,038 meters
→
|
|
usedFor
|
interstate travel
→
tourism
→
|