Report for St. Helena Light Station (Michigan) - 1873

General
District: 11th
Inspector: From recs in office of LH Engineer, Detroit.
Location: On a small island separated from the SE end of the island of St. Helena by a narrow channel or strip of water. NE end of Lake Michigan near entrance to Straits of Mackinac from the west.
Date of Report: 12/03/1873
Latitude: 45° 51' 15"
Longitude: 84° 46' 50"
Premises
Site:
Date of Reservation:
Date of Deed:
Date of Permission:
Date of Lease:
Area of the Entire Site: At high water will not exceed 1/4 acre.
Area Inclosed:
Character of Soil: Hard gravel
Distance of tower from Nearest High-Water Mark: 30'
Inclosures to Premises / Type of Fence: None
Wharf or Landing on Premises: None
Road to Land or Wharf Chararacter of and Distance: No regular road
Means to Reach Light Station: By path across island or by following around beach from a dock 1 mile N of station. Or by boat from Mackinac. Dock mentioned is private dock on St. Helena Island, & is not visited by any regular line of boats.
Distance to Nearest Road: There is a good steamboat landing about 1 mile from the station, but it is not used by any regular line of boats.
Distance to Post Office: 1 mile
Distance to Village: 1 mile
Facilities for Public Conveyance: By steamboat to Mackinac
Facilities for Private Conveyance: By small boat from Mackinac.
Means Used for Support of Lantern: Tower
Number of Separate Lights: 1
First Built or Established: 1873
Last Rebuilt, Repaired, or Renovated:
Condition at This Date: Good
Shape of Tower in Plan: Round
Form of Tower:
Height from Base to Ventilator Ball: 65' 2"
Height of Focal Plane Above Mean High Water: 71' 4"
Background of Lighthouse as Seen from Sea: Low ground thickly covered with Alder & birch trees.
Color of Tower: Red
Color of Tower/ How Produced: Natural color of brick
Tower Connection: Connected by a covered way
Object of Navigation: To guide vessels into the Straits of Mackinac from the W & also to mark the excellent anchorage under the lee of St. Helena Island.
Building Materials: Brick
General Description:
Wall Thickness at Base: 1' 8" outer wall & 8" inner wall.
Wall Thickness at Parapet: 8" outer wall & 4" inner wall
Diameter at Base: 16'
Diameter at Parapet: 9'
Kind of Stairway and Steps: Circular stairway w/ iron steps & landings
Number of Landings: 3
Size of Glass: 12" x 16"
Number of Windows and Size of Sash: 4 - 2' 6" x 3' 4"
Number of Doors: 1
Kind of Foundation and Depth Below Surface: Piles driven to underlying rock then cut off below water line & covered w/ 3' of concrete - then foundation of cut stone in regular courses to base of tower, filled in w/ rubble masonry.
Character of Soil Surrounding the Lighthouse: Limestone & gravel with very thin soil in places.
Soil Susceptibility: A few scattering willows now grow on the site.
Miscellaneous Remarks:
Lantern and Fixtures
Order of Lantern: 4th
Shape of Lantern:
Diameter to Glass: 6' 6"
Diameter in the Clear:
Number of Sides: 10
Type of Bars:
Thickness of Bars:
Height Glazed: 40"
Number of Plates in Height: One
Number of Plates Each Side: One
Thickness of Plates: 1/4"
Size of Plates: Same size
Number of Storm Panes:
Unglazed Side of Lantern:
What Bearings:
Construction Material Lantern: Iron & copper
Construction Material Roof / Cowl: Iron outside, copper inside
Ventilator / Cowl: None
Lightning Spindle: Copper & platinum
Description of Lightning Rod:
Balustrade:
Lantern Doors: 1 iron door
Floor of Lantern: Iron
Watchroom Doors: No watchroom. Iron trap door leads from tower directly into lantern.
Parapet Diameter:
Ventilators
Location / Number: In lower part of lantern 9" below plate glass.
Ladders / Cleaning Arrangement: None
Curtain Hooks / Hanger: Screwed into sash bars
Illuminating Apparatus
Kind of Apparatus:
Intensity in Candles:
Name of Maker:
Year Made:
Marks and Number:
Order of Apparatus: 3 1/2
Inside Diameter:
Light Characteristic: Fixed red
Time of Revolution:
Flash Interval:
Duration of Flash:
Arc of Each Fixed Part: Fixed 360 degrees Visible from W by N 3/4 N by S'd & E'd to N by W 1/4 W
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: Iron
Service Table: Iron
Draft Tube Description:
Revolving Machinery:
Standby and Description:
Chariot Float or Balls:
Chariot Description:
Length of Drop Tube: Whole height of tower.
Clock Weight:
Length of Winding Time:
Drive During Rewind:
Machinery Protection:
Regulated:
Lens Protection:
How Color is Produced: Red chimney
Red Sectors Description:
Where Color Attached:
Form of Colored Glass:
Lamp Description: Funck's Hydraulic Float lamp -2 wicks
Type of Illuminant:
Number of Spare Lamps: 1
Number of Spare Burners: 2
Candle Power:
Closets and Store Rooms
Tower Closet Use: With shelves
Oil House Description: In base of tower, oil butts placed in recesses in the wall.
Oil House Inside Dimension:
Oil House Construction Material:
Oil House Capacity:
Other (Describe): On 1st floor - fitted w/ workbench, shelves & hooks.
Suitability: Dry & well suited.
Dwelling
Location: Joined to tower by covered way
Coloring: Red
Construction Materials: Brick
Number of Rooms: 8
Number of Dwellings: 1
Heating Plant:
Number of Keepers: 1
Furnished Quarters:
NOT Furnished Quarters:
Outhouses: Woodshed & water closet
Outhouse Coloring:
Paths and Walks:
Area Inclosed: Premises not enclosed - area about 1/4 acre surrounded by water.
Area of Garden: None
Area Timber or Shrubbery:
Cultivation Area Available:
Area Cultivated:
Character of Surroundings: Adjoining island is stony w/ light surface soil. Covered w/ stunted growth of timber.
Stove, Maker:
Stove, Size:
Sink, Maker:
Sink, Size:
Pump, Maker:
Pump, Size:
Lamps:
Water
How Procured: From lake
Quality: Good
Quantity: Ample
Injury Possible: Not liable
Purity Precaution:
Tank Capacity:
Tank Material:
Distilling Apparatus: False
Distilling Manufacturer:
Well Description:
Well Diameter:
Well Lining:
Pump or Bucket:
What Power Used:
Distance from Dwelling:
Healthfulness
General Opinion: Very healthy
Diseases: None
Prevalency:
Local Causes: None
Recommended Improvements: No