Report for Portage Lake Ship Canals Breakwater West Light (Michigan) - 1910

General
District: 9th
Inspector: Oliver G. Brown
Location: Portage Lake Ship Canal West Breakwater Light. On outer end of the West breakwater at entrance to Portage Lake Ship Canals, Mich. NW'ly shore of Keweenaw Peninsula, Lake Superior.
Date of Report: 08/03/1910
Latitude: 47° 14' 02"
Longitude: 88° 37' 54"
Premises
Site: On end of breakwater by permission of War Department.
Date of Reservation:
Date of Deed:
Date of Permission:
Date of Lease:
Area of the Entire Site:
Area Inclosed:
Character of Soil:
Distance of tower from Nearest High-Water Mark:
Inclosures to Premises / Type of Fence:
Wharf or Landing on Premises:
Road to Land or Wharf Chararacter of and Distance:
Means to Reach Light Station: By boat only-see description of Portage Lake Ship Canals Main.
Distance to Nearest Road:
Distance to Post Office:
Distance to Village:
Facilities for Public Conveyance:
Facilities for Private Conveyance:
Means Used for Support of Lantern: Tower
Number of Separate Lights: 1
First Built or Established: 1902
Last Rebuilt, Repaired, or Renovated: 1903
Condition at This Date: Fair.
Shape of Tower in Plan: Square.
Form of Tower: Pyramidal.
Height from Base to Ventilator Ball:
Height of Focal Plane Above Mean High Water: 32 feet.
Background of Lighthouse as Seen from Sea:
Color of Tower: White
Color of Tower/ How Produced: Paint
Tower Connection: Tower is on end of breakwater approached along breakwater or by boat.
Object of Navigation: Guide to entrance to Portage Lake Ship Canals.
Building Materials: Skeleton structural steel frame with circular lantern deck.
General Description:
Wall Thickness at Base: Corner Posts of 6" x 6" x 5/8" "L"'s
Wall Thickness at Parapet: Corner Posts of 6" x 6" x 5/8" "L"'s
Diameter at Base: 9' 0"
Diameter at Parapet: 3' 4"
Kind of Stairway and Steps: An iorn ladder is attached to outside of tower.
Number of Landings: None.
Size of Glass:
Number of Windows and Size of Sash:
Number of Doors:
Kind of Foundation and Depth Below Surface: Anchored to planking of breakwater.
Character of Soil Surrounding the Lighthouse:
Soil Susceptibility:
Miscellaneous Remarks: White square pyramidal steel tower with black lantern & gallery.
Lantern and Fixtures
Order of Lantern: Pintasch gas buoy lantern.
Shape of Lantern:
Diameter to Glass:
Diameter in the Clear:
Number of Sides:
Type of Bars:
Thickness of Bars:
Height Glazed:
Number of Plates in Height:
Number of Plates Each Side:
Thickness of Plates:
Size of Plates:
Number of Storm Panes:
Unglazed Side of Lantern:
What Bearings:
Construction Material Lantern:
Construction Material Roof / Cowl:
Ventilator / Cowl:
Lightning Spindle:
Description of Lightning Rod:
Balustrade: Gallery floor of 3/8" steel plate & cirular in plan - 2" x 1/2" flat iorn rail with vertical stanchions 1" in diameter.
Lantern Doors:
Floor of Lantern: Steel plate 3/8"
Watchroom Doors:
Parapet Diameter:
Illuminating Apparatus
Kind of Apparatus:
Intensity in Candles:
Name of Maker:
Year Made:
Marks and Number: 1062
Order of Apparatus:
Inside Diameter:
Light Characteristic:
Time of Revolution:
Flash Interval:
Duration of Flash:
Arc of Each Fixed Part:
Number of Panels:
Number of Flash Panels:
Arc of Each:
Number of Elements in Central Drum:
Number of Prisms Above Center Drum:
Number of Prisms Below Center Drum:
Does Apparatus Revolve?: False
Is There a Revolving Belt?: False
Revolving Panels:
How Flash is Produced:
Number of Vertical Elements Panel:
Fixed Lens Covered:
Pedestal:
Service Table:
Draft Tube Description:
Revolving Machinery:
Standby and Description:
Chariot Float or Balls:
Chariot Description:
Length of Drop Tube:
Clock Weight:
Length of Winding Time:
Drive During Rewind:
Machinery Protection:
Regulated:
Lens Protection:
How Color is Produced:
Red Sectors Description:
Where Color Attached:
Form of Colored Glass:
Lamp Description:
Type of Illuminant: Gas
Number of Spare Lamps:
Number of Spare Burners:
Candle Power:


Compressed Gas
Gas Container:
Compressed Gas Capacity:
Compressed Gas Charge:
How Supply Renewed: Recharged by tender through wooden trap door
At What Intervals:
Spare Containers:


Gas Light
Gas Light Kind:
Gas Light Number of Burners:
Kind of Burner:
Candlepower Per Burner:
Total Candlepower:
Consumption Gas Burner Per Hour:
Total Consumption Per Hour:
How Gas Obtained: 2 cylindrical steel tanks under breakeater decking.