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: |