Report for Old Mackinac Point Light (Michigan) - 1907

General
District: 9th
Inspector: Edward L. Woodruff, Asst. Engr. 9th Dist.
Location: On Old Mackinac Point, S'ly side of Straits of Mackinac.
Date of Report: 12/03/1907
Latitude: 45° 47' 18" N
Longitude: 84° 43' 40" W
Premises
Site: 2 parcels, 1 by deed & 1 by condemnation.
Date of Reservation:
Date of Deed: 02/14/1890
Date of Permission:
Date of Lease:
Area of the Entire Site: 38.450 sq. ft.
Area Inclosed: Entire site
Character of Soil: Sandy
Distance of tower from Nearest High-Water Mark: 144'
Inclosures to Premises / Type of Fence: Entire site enclosed by picket fence
Wharf or Landing on Premises: Wharf for landing supplies for station & Fog Signal, constructed of plank & logs.
Road to Land or Wharf Chararacter of and Distance: From station to landing 130'
Means to Reach Light Station: Mich. Cent. & Grand Rapids & Indiana RR to Mackinaw City
Distance to Nearest Road: Lighthouse situated on Public Road, 1/2 mile to RR station.
Distance to Post Office: 1/2 mile
Distance to Village: Situated in Mackinaw City
Facilities for Public Conveyance: Good
Facilities for Private Conveyance: 1/2 mile from RR station.
Means Used for Support of Lantern: Brick tower
Number of Separate Lights: One
First Built or Established: 1892
Last Rebuilt, Repaired, or Renovated: Not since
Condition at This Date: Good
Shape of Tower in Plan: Circular
Form of Tower: Cylindrical
Height from Base to Ventilator Ball: 56'
Height of Focal Plane Above Mean High Water: 62'
Background of Lighthouse as Seen from Sea: To right pine & spruce forest. To left, Mackinaw City.
Color of Tower: Yellow
Color of Tower/ How Produced: Yellow brick
Tower Connection: Connected with dwelling on NW corner by 1-story service room.
Object of Navigation: Lake Coast & guide through the straits.
Building Materials: Brick, stone & iron.
General Description:
Wall Thickness at Base: 2 2/3' & 8" respectively with air spaces.
Wall Thickness at Parapet: 15" & 8" respectively with air spaces.
Diameter at Base: 15' stone
Diameter at Parapet: 13' 4"
Kind of Stairway and Steps: Circular iron steps. Iron ladder thru watchroom to lantern
Number of Landings: 1 - watchroom deck
Size of Glass: 8" x 8", 10" x 12", 10" x 32 5/8" & 16"
Number of Windows and Size of Sash: 9; 1 3/4 sash
Number of Doors: 4
Kind of Foundation and Depth Below Surface: Concrete & rubble stone masonry, 8'
Character of Soil Surrounding the Lighthouse: Sandy
Soil Susceptibility: By all of them [grass, shrubbery & trees]
Miscellaneous Remarks: Conemnation judgement Date, January 24, 1902. Lighthouse is situated at Mackinaw City on SE corner of Conkling Ave. & 3rd St.
Lantern and Fixtures
Order of Lantern: 4th
Shape of Lantern: Polygonal
Diameter to Glass: 7'
Diameter in the Clear:
Number of Sides: 8
Type of Bars: Vertical
Thickness of Bars:
Height Glazed: 36"
Number of Plates in Height: One
Number of Plates Each Side: One
Thickness of Plates: 3/8"
Size of Plates: 34 3/8" x 35 3/4"
Number of Storm Panes: Not used (size 32" x 36")
Unglazed Side of Lantern: 2 sides, 45 degrees
What Bearings: In rear does not show from seaward.
Construction Material Lantern: Cast iron
Construction Material Roof / Cowl: Cast iron
Ventilator / Cowl: Cast iron
Lightning Spindle: Copper with platinum point
Description of Lightning Rod: Copper band 1/8" x 1.5" attached to lantern deck, led down S side of tower into pit through 6" iron pipe in accordance with Board's specifications; also rod from newel to earth.
Balustrade: Iron
Lantern Doors: In rebate at parapet - opens outwards.
Floor of Lantern: Iron
Watchroom Doors: Trap door in lantern floor
Parapet Diameter: 6' 7 1/4"
Ventilators
Location / Number: Lower part of lantern
Ladders / Cleaning Arrangement: None needed
Curtain Hooks / Hanger: Brass screwed in angles of lantern.


Watchroom
How is Watchroom Fitted: No fittings
How is Relief Called:
Where is Call System Led:
Illuminating Apparatus
Kind of Apparatus: 3 hours
Intensity in Candles:
Name of Maker: Sautter, Lemouier & Co.
Year Made:
Marks and Number: 323
Order of Apparatus: 4th
Inside Diameter: 19.5"
Light Characteristic: Flashing red every 10 seconds
Time of Revolution: 100 sec
Flash Interval: 10 sec
Duration of Flash:
Arc of Each Fixed Part: From N 51 degrees W (NW 1/2 W) through N'd to S 87 degrees E (E 1/4 S). Remaining portion of arc obscured by land.
Number of Panels: 10
Number of Flash Panels: 10
Arc of Each:
Number of Elements in Central Drum: 4
Number of Prisms Above Center Drum: 6
Number of Prisms Below Center Drum: 3
Does Apparatus Revolve?: True
Is There a Revolving Belt?: False
Revolving Panels:
How Flash is Produced:
Number of Vertical Elements Panel:
Fixed Lens Covered:
Pedestal: Cast iron
Service Table: Cast iron
Draft Tube Description: None needed in this order of lens
Revolving Machinery: Clockwork made by Sautter, Lamouier [sic] & Co.
Standby and Description:
Chariot Float or Balls: Ball bearing
Chariot Description:
Length of Drop Tube: 33'
Clock Weight:
Length of Winding Time: 3 hours
Drive During Rewind:
Machinery Protection: Metal & glass case
Regulated: Fly governor
Lens Protection:
How Color is Produced: By red chimney
Red Sectors Description:
Where Color Attached: To Illuminating apparatus
Form of Colored Glass:
Lamp Description: New 4th order. 1 wick.
Type of Illuminant:
Number of Spare Lamps: 2 complete
Number of Spare Burners: None
Candle Power:


Clock Cord Description
Revolving Cord:
Size of Clock Cord:
Length of Clock Cord:
How Led: Through & down center newel post, over 2 pulleys secured to under side of lantern deck.
Diameter and Length of Clock Drum:


Chariot Balls
Balls Description: Y shaped made in 4 pieces 1/2 thickness. Ball race diam. 2 7/16 - 3 7/32 out dia.
Cage to Separate Balls: False
Number of Balls: 20
Diameter of Balls: 3/8"
Closets and Store Rooms
Tower Closet Use: 1 closet - no shelving
Oil House Description: Circular iron oil house lined with brick, located S'ly side of enclosure about 144' from tower.
Oil House Inside Dimension:
Oil House Construction Material:
Oil House Capacity: 360 gallons.
Other (Describe): Closets for all rooms in dwellings fitted with shelves & hooks. Pantry for each dwelling fitted with shelves & glass doors. wide shelf underneath.
Suitability: Dry & suited to their purposes.
Fog Signal General
Fog Signal Kind: 10" Steam whistle
Time to Start: 40 - 45 minutes
How Long Will Pressure Last:
Manufacturer: Variety Iron Works. Cleveland, OH
Year of Manufacture: 1890
Characteristic: 5 sec blast with alternate intervals of 17 & 33 sec.
Duplication: All except whistle
Timing Device: Cams on worm wheel on Engine
If whistle, siren, or trumpet, Pressure at Which Blown: 85#
Height Above Water: About 28'
Compass Direction:
Location: E of tower & dwelling - 55' detached from dwelling.
Distance and Direction: About 100' E of tower
Water Supply: Well
Reached from Lighthouse: Concrete walks
Description of Fog Signal Building: Buff brick structure 22' x 41' 8", stone trimmings & gables - copper roof.
Pressure And Recording Gauge:
Steam Signal
Steam Boiler: Steam
Kind: Locomotive
Tube: Flue tube
Dimensions: Height 6' 10 5/8"
Length: 15' 4 9/16"
Diameter: 3' 8"
Tube Description: 58 tubes, 96"
Steam Tube Diameter: 2.5"
Steam Furnace Kind: Part of boiler
Furnace Length: 5'
Furnace Width: 3' 3"
Furnace Height: 3' 11"
Steam Heat Surface: 378.9 sq. ft.
Steam Grate Surface: 16.25 sq. ft.
Number of Grate Bars: 14 (12 center & 2 side)
Kind of Grate Bars: Double bar spade end, cast iron
Steam Fuel: Up to present time, wood has been chiefly used with sm. qty, anthracite coal.
Steam Safety Valve: Cast iron lever, brass valve & disc
Steam Maximum Pressure: 135#
Steam Working Pressure: 85#
Steam Diameter of Smokestack: Brick chimney 20" x 20" square flue.
Smokestack Height: 33'
Drum Dimension: 4'
Steam Drum Diameter: 2' 6"
Steam Covering: None
Steam Boiler Condition: Good
Steam Boiler Built: 1890
Where Built: Cleveland, OH
Manufacturer: Variety Iron Works
Steam Heater: False
Kind:
Size:
Heater Time Affect:
Steam Engine Kind: Upright
Steam Engine Revolutions: 122 rpm
Steam Engine Cyl. Diameter: 4"
Steam Engine Piston Stroke: 9"
Steam Engine Pipe Size: 3/4"
Steam Engine When Built: 1890
Steam Engine Where Built: Cleveland, OH
Manufacturer: Thomas Manning Jr.


Whistle Signal
Whistle Diameter: 10"
Whistle Height: 16 1/4"
Whistle Orifice: 2 5/8"
Whistle Tone: Single
Whistle Chime:
Dwelling
Location: Attached SE
Coloring: Buff walls - red roof
Construction Materials: Buff brick - tin roofs
Number of Rooms: 14 rooms about equally divided.
Number of Dwellings: 2
Heating Plant:
Number of Keepers:
Furnished Quarters:
NOT Furnished Quarters:
Outhouses: Barn 16' x 24'. water closet inside & warehouse made from old signal house
Outhouse Coloring: Buff
Paths and Walks: Concrete walks shown on plat
Area Inclosed: None
Area of Garden: None
Area Timber or Shrubbery: None
Cultivation Area Available: All not occupied by structure
Area Cultivated: None
Character of Surroundings: Sandy. Pine forests to right - Improved lands & city lots to left.
Stove, Maker:
Stove, Size:
Sink, Maker:
Sink, Size:
Pump, Maker:
Pump, Size:
Lamps:
Water
How Procured: By well
Quality: Good
Quantity: Ample
Injury Possible: Not liable
Purity Precaution: None
Tank Capacity: 1 tank - 4.5' x 5' steel - 590 gal fog signal house; 2 rain water cisterns - 135 barrels each in cellar of each dwelling
Tank Material: Brick & cement & steel
Distilling Apparatus: False
Distilling Manufacturer:
Well Description: 12'
Well Diameter: 6" crock pipe
Well Lining:
Pump or Bucket: Pump
What Power Used:
Distance from Dwelling: 7'
Healthfulness
General Opinion: Generally good health prevails
Diseases:
Prevalency:
Local Causes:
Recommended Improvements: Already provided with drains
Miscellaneous
Access to Lighthouse: Landing cirb 16' x 32' outer end; then 2 cribs 12' x 12' & 1 crib 8' x 87' of logs & plank, connected by bridges 18' long. No boathouse - boat not needed. City streets pass front & W sides of lighthouse grounds.
Distance and Direction: About 160' NE
Miscellaneous Remarks: Fog signal est. in wooden struct. covered w/ corr. iron in 1890. New brick fog signal construct. on land acq by condemnation - 1906. F.S. apparatus overhauled & re-piped. Concrete walks have been laid w/i entire enc. All bldgs & appl in good condition.