Historic Bridges
of the United States

Duluth Aerial Lift Bridge

St. Louis County, Minnesota

Overview
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Photos 

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Map 

Vicinity Map

Vicinity map

Map links:

Facts 

Overview
Vertical-lift through truss bridge over the Duluth Ship Canel on Lake Avenue in Duluth
Location
Duluth, St. Louis County, Minnesota
Status
Open to traffic
History
Opened as a transporter bridge in 1905; reconstructed as a vertical-lift bridge in 1930; rehabilitated 2000
Builders
- C.A.P. Turner
- Thomas McGilvray
Design
Warren through truss
Dimensions
Length of largest span: 385.8 ft.
Total length: 501.7 ft.
Deck width: 24.0 ft.
Vertical clearance above deck: 18.1 ft.
Recognition
Posted to the National Register of Historic Places
Approximate latitude, longitude
+46.77903, -92.09292   (decimal degrees)
46°46'45" N, 92°05'35" W   (degrees°minutes'seconds")
Approximate UTM coordinates
15/569245/5181008 (zone/easting/northing)
USGS topographic map
Duluth
Inventory numbers
MN L6116 (Minnesota bridge number)
NRHP 73002174 (National Register of Historic Places reference number)
BH 36674 (Bridgehunter.com ID)
Inspection (as of 12/2007)
Deck condition rating: Satisfactory (6 out of 9)
Superstructure condition rating: Fair (5 out of 9)
Substructure condition rating: Good (7 out of 9)
Sufficiency rating: 43.0 (out of 100)
Average daily traffic (as of 2003)
7,100

Categories 

C.A.P. Turner (3)
Duluth, Minnesota (24)
Minnesota (431)
NR-listed (1,570)
Navigable waterway (1,260)
Open (22,294)
Span length 250-500 feet (600)
St. Louis County, Minnesota (44)
 Thomas McGilvray (1)
Through truss (5,562)
Total length 500-1000 feet (1,056)
Truss (16,280)
Vertical lift (187)
Warren through truss (146)
Warren truss (918)

Update Log 

Sources 

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Comments 

Duluth Aerial Lift Bridge
Posted November 29, 2008, by Jolene V (joakabridgefreak [at] yahoo [dot] com)

I once got stuck on this bridge as it was lifting and had to wait for it to lower as the ship passed. very interesting ride! I was walking and was in the middle as the lift alarm went off so I had to wait.

Duluth Aerial Lift Bridge
Posted November 29, 2008, by Jolene V (joakabridgefreak [at] yahoo [dot] com)

I once got stuck on this bridge as it was lifting and had to wait for it to lower as the ship passed. very interesting ride! I was walking and was in the middle as the lift alarm went off so I had to wait.

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