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 |