Report for Grand Marais Harbor of Refuge Rear Range (Michigan) - 1909

General
District: 11th
Inspector: Ralph R. Tinkham
Location: At inner end of W pier at entrance to Grand Marais Harbor of Refuge. MI. 1770' in rear of front light
Date of Report: 06/16/1909
Latitude: Not computed
Longitude:
Premises
Site: Situated on pier by permission of War Dept.
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: Land directly on pier
Road to Land or Wharf Chararacter of and Distance: No road to pier, though a team could pass along sand point from Grand Marais.
Means to Reach Light Station: By water, or on foot from Grand Marais, or by rig.
Distance to Nearest Road: 1.5 miles to steamboat landing, around harbor.
Distance to Post Office: 3/4 mile to Grand Marais P.O.
Distance to Village: 3/4 mile to Grand Marais, across harbor from town.
Facilities for Public Conveyance: None
Facilities for Private Conveyance: By launch or small boat, or on foot from Grand Marais, MI or by team.
Means Used for Support of Lantern: Tower
Number of Separate Lights: One
First Built or Established: 1898
Last Rebuilt, Repaired, or Renovated:
Condition at This Date: Good
Shape of Tower in Plan: Square
Form of Tower: Pyramidal, skeleton iron.
Height from Base to Ventilator Ball: 61' 10"
Height of Focal Plane Above Mean High Water: 62'
Background of Lighthouse as Seen from Sea: Distant wooded bluff back of Grand Marais
Color of Tower: White, black lantern
Color of Tower/ How Produced: Paint
Tower Connection: Detached, & about 300' S'ly therefrom
Object of Navigation: Range & harbor light
Building Materials: 4 corner posts of 6" x 6" x 5/8" angles, stands on 2 sills of 10" I's, with 2 - 6" C struts connecting ends of sills.. Intermediate horiz. struts of T iron & diag. of 1 1/4" round iron rods.
General Description:
Wall Thickness at Base:
Wall Thickness at Parapet:
Diameter at Base: 19' 6'
Diameter at Parapet: 11' 3"
Kind of Stairway and Steps: Iron ladder in 2 flights. 3 1/4" x 2 1/4" angles. 20" b to b with double 3/4" rounds.
Number of Landings: Starts at elev. walk, 5' above pier, 1 C.I landing
Size of Glass: 10" x 10"
Number of Windows and Size of Sash: 2 8-lt in watchroom, sash 23 3/4 x 25"
Number of Doors: Wood trap door in floor of watchroom & iron trap door in lantern
Kind of Foundation and Depth Below Surface: On harbor pier of crib work filled with stone.
Character of Soil Surrounding the Lighthouse: Sand
Soil Susceptibility: No.
Miscellaneous Remarks: Upper part of tower below lantern inclosed to form watchroom. Walls of wood frame construction 6" thick. Inside ceiled & varnished, with floor of maple. Height floor of watchroom to lantern floor 8' 6".
Lantern and Fixtures
Order of Lantern: 4th
Shape of Lantern: Polygonal
Diameter to Glass: 7'
Diameter in the Clear: 6' 5"
Number of Sides: 8
Type of Bars: Vertical
Thickness of Bars:
Height Glazed: 35 1/4"
Number of Plates in Height: One
Number of Plates Each Side: One
Thickness of Plates: 5/16"
Size of Plates: 35 3/4" x 32.5"
Number of Storm Panes: None
Unglazed Side of Lantern: 2 adjacent panels each 45 degrees
What Bearings: Between 200 degrees & 290 degrees with 0 degrees at N.
Construction Material Lantern: Cast iron parapet lined with sheet iron, wrought iron verticals.
Construction Material Roof / Cowl: Cast iron plates forming 8-sided pyramidal roof, lined with zinc.
Ventilator / Cowl: Cast iron
Lightning Spindle: Brass, platinum tip
Description of Lightning Rod: None
Balustrade: Gallery square, 12' x 12' in plan, of cast iron plates. Balustrade is 2, 2" pipe rails with 1.5" pipe stanchions, all with pipe fittings
Lantern Doors: 2-fold cast iron door in parapet, with brass fittings; leads to outside gallery.
Floor of Lantern: Cast iron plates bolted together & to plates of outside gallery.
Watchroom Doors: Cast iron plate trap door with iron ring handle & hinges.
Parapet Diameter: 6' 7"
Ventilators
Location / Number: 4 in parapet, brass valve registers inside, cast iron hoods outside.
Ladders / Cleaning Arrangement: None needed
Curtain Hooks / Hanger: Brass screw hooks fitted in verticals.


Watchroom
How is Watchroom Fitted: Bench across N side. Closet with shelves for lamp supplies. Iron ladder leads to lantern 21" wide with flat bar strings 1/2 x 2.5" & double 3/4" round iron treads. Wood trap door opens to ladder leading to pier. Opening 26" x 40". Glass-box & coat hooks
How is Relief Called:
Where is Call System Led:
Illuminating Apparatus
Kind of Apparatus:
Intensity in Candles:
Name of Maker: Henry Lepaute, Paris
Year Made: Not given.
Marks and Number: None
Order of Apparatus: 5th
Inside Diameter: 14 7/8"
Light Characteristic: Fixed
Time of Revolution:
Flash Interval:
Duration of Flash:
Arc of Each Fixed Part: 4 fixed panels, each 90 degrees - 360 degrees. 2 front panels have lens belt. 2 rear panels have no belt, but are fitted with 8 tier of prisms, extending from top to bottom of lens apparatus.
Number of Panels: 4
Number of Flash Panels: None
Arc of Each:
Number of Elements in Central Drum: Central belt with 2 elements above & 2 below
Number of Prisms Above Center Drum: 5
Number of Prisms Below Center Drum: 3
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: Old pattern, cast iron
Service Table: None
Draft Tube Description: None
Revolving Machinery:
Standby and Description:
Chariot Float or Balls:
Chariot Description: Apparatus mounted on cross & ring carried on 4 1 1/4" rollers bearing on pedestal top, used for cleaning purposes only. Kept from turning by pin.
Length of Drop Tube:
Clock Weight:
Length of Winding Time:
Drive During Rewind:
Machinery Protection:
Regulated:
Lens Protection:
How Color is Produced: By ruby lamp chimney
Red Sectors Description:
Where Color Attached: To illuminating apparatus
Form of Colored Glass: Lamp chimney
Lamp Description: Funk-Heap
Type of Illuminant:
Number of Spare Lamps: 3 at this tower
Number of Spare Burners: 1 burner to each lamp.
Candle Power:


Vapor Oil Lamp
Number of Wicks or Mantels: 1
Diameter of Outside Wick: 1 1/4"
Diameter of Mantel:
Diameter of Circum Circle:
Closets and Store Rooms
Tower Closet Use: 1 in watchroom for lamp supplies.
Oil House Description: See Front light
Oil House Inside Dimension:
Oil House Construction Material:
Oil House Capacity:
Other (Describe):
Suitability: