|
gptkbp:instanceOf
|
bridge
|
|
gptkbp:annualEvent
|
bridge walks
|
|
gptkbp:architect
|
H._M._G._Houghton
|
|
gptkbp:built
|
1954
1959
steel and concrete
1954-1959
|
|
gptkbp:colors
|
blue
|
|
gptkbp:community_impact
|
economic development
|
|
gptkbp:construction_cost
|
$5 million
|
|
gptkbp:crosses
|
gptkb:Portage_Lake
|
|
gptkbp:cultural_significance
|
symbol of local identity
|
|
gptkbp:debutYear
|
1959
|
|
gptkbp:design
|
vertical lift bridge
|
|
gptkbp:designatedAs
|
National_Historic_Civil_Engineering_Landmark
|
|
gptkbp:emergencyServices
|
yes
|
|
gptkbp:features
|
two lanes of traffic
|
|
gptkbp:function
|
connects_Houghton_and_Hancock
|
|
gptkbp:hasCharacter
|
1
100 feet
40 feet
lift bridge
|
|
gptkbp:height
|
100 feet
100 feet above water
|
|
gptkbp:historical_significance
|
engineering achievement
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Portage Lake Lift Bridge
|
|
gptkbp:is_open_to
|
hydraulic system
|
|
gptkbp:legacy
|
listed_on_National_Register_of_Historic_Places
|
|
gptkbp:length
|
8,300 feet
|
|
gptkbp:lighting
|
LED lights
|
|
gptkbp:localNames
|
gptkb:Portage_Bridge
|
|
gptkbp:location
|
gptkb:Houghton,_Michigan
|
|
gptkbp:maintenance
|
gptkb:Michigan_Department_of_Transportation
annual inspections
|
|
gptkbp:opened
|
March 15, 1959
|
|
gptkbp:operator
|
Houghton_County_Road_Commission
|
|
gptkbp:owner
|
gptkb:Michigan_Department_of_Transportation
|
|
gptkbp:parking
|
yes
|
|
gptkbp:passenger_traffic
|
vehicles
traffic signals
2 lanes
approximately 10,000 vehicles per day
|
|
gptkbp:productionCompany
|
gptkb:HNTB_Corporation
|
|
gptkbp:productLine
|
400 feet
|
|
gptkbp:public_transport_access
|
yes
|
|
gptkbp:renovated
|
2010-2011
|
|
gptkbp:sacraments
|
March 15, 1959
|
|
gptkbp:serves
|
Houghton_and_Hancock_communities
|
|
gptkbp:significance
|
important transportation link
|
|
gptkbp:surrounding_area
|
yes
|
|
gptkbp:toll
|
no
|
|
gptkbp:type
|
movable bridge
|