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

General
District: 9th
Inspector: Oliver G. Brown
Location: Portage Lake Ship Canal East Breakwater Light Station. On the outer ed=nd of the East Breakwater at the entrance to Portage Laike Ship Canals, Mich. NW'ly shore of Keweenaw Peninsula, Lake Superior.
Date of Report: 08/03/1910
Latitude: 47° 14' 04"
Longitude: 88° 37' 48"
Premises
Site: On end of breadwaters 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 breadwater approached along breakwaters 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 porsts of 6" x 6" x 5/8" "L"'s
Wall Thickness at Parapet: Corner porsts 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 iron 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: Pintsch gas bouy 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 & circular in plan- 2" x 1/2" flat iron rail with vertical stanchions 1" in diameter.
Lantern Doors:
Floor of Lantern:
Watchroom Doors:
Parapet Diameter:
Illuminating Apparatus
Kind of Apparatus:
Intensity in Candles:
Name of Maker:
Year Made:
Marks and Number: 605
Order of Apparatus:
Inside Diameter:
Light Characteristic: Fixed red 10 secs., eclipes 10 sec.
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:
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 8' x 4'2" housed in chambers under decking