Report for Sharkfin Shoal (Maryland) - 1909

District: 5th
Inspector: John Murdoch, Assistant Light-House Engineer
Location: Sharkfin Shoal, Md., on the E'ly part of Sharkfin Shoal, making out NE'ly from Bloodsworth Island, upper part of Tangier Sound.
Date of Report: 09/17/1909
Latitude: 38° 12' 08"
Longitude: 75° 59' 13"
Site: Submarine
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:
Road to Land or Wharf Chararacter of and Distance:
Means to Reach Light Station: Small boat
Distance to Nearest Road: Steamboat landing, 3 miles
Distance to Post Office: 3 miles
Distance to Village: 3 miles
Facilities for Public Conveyance: None
Facilities for Private Conveyance: Small boat, 3 miles
Means Used for Support of Lantern: Dwelling
Number of Separate Lights: 1
First Built or Established: 1892
Last Rebuilt, Repaired, or Renovated: September, 1909
Condition at This Date: Good
Shape of Tower in Plan: Hexagonal
Form of Tower:
Height from Base to Ventilator Ball:
Height of Focal Plane Above Mean High Water: 44 feet
Background of Lighthouse as Seen from Sea: Sky
Color of Tower: White; foundation brown
Color of Tower/ How Produced: By paint
Tower Connection: No tower
Object of Navigation: General purposes
Building Materials:
General Description:
Wall Thickness at Base:
Wall Thickness at Parapet:
Diameter at Base:
Diameter at Parapet:
Kind of Stairway and Steps: Wood
Number of Landings: 3
Size of Glass: 8" x 12"
Number of Windows and Size of Sash: 9, 26.5" x 28.5" x 1.5"
Number of Doors: 16
Kind of Foundation and Depth Below Surface: Screw pile, 10' 6"
Character of Soil Surrounding the Lighthouse:
Soil Susceptibility:
Miscellaneous Remarks:
Lantern and Fixtures
Order of Lantern: 4th
Shape of Lantern: Polygonal
Diameter to Glass: 7 feet
Diameter in the Clear:
Number of Sides: 9
Type of Bars: Helical
Thickness of Bars:
Height Glazed: 36.5"
Number of Plates in Height: 1
Number of Plates Each Side: 1
Thickness of Plates: 3/8"
Size of Plates: 36.5" x 34"
Number of Storm Panes:
Unglazed Side of Lantern:
What Bearings:
Construction Material Lantern: Wood, iron & copper
Construction Material Roof / Cowl: Copper
Ventilator / Cowl: Copper
Lightning Spindle: Brass
Description of Lightning Rod: Copper, screwed to spindle, led over roofs to side of house, to foundation and water
Balustrade: Wood
Lantern Doors: By hinges to frame of lantern
Floor of Lantern: Wood
Watchroom Doors:
Parapet Diameter:
Location / Number: Laower portion of lantern
Ladders / Cleaning Arrangement: Small step ladder
Curtain Hooks / Hanger: Screwed into frame of lantern
Illuminating Apparatus
Kind of Apparatus:
Intensity in Candles:
Name of Maker: Not known
Year Made: Not known
Marks and Number: None
Order of Apparatus: 4th
Inside Diameter: 19 7/8"
Light Characteristic: Fixed white, with a fixed red sector
Time of Revolution:
Flash Interval:
Duration of Flash:
Arc of Each Fixed Part:
Number of Panels: 4
Number of Flash Panels:
Arc of Each:
Number of Elements in Central Drum: 7
Number of Prisms Above Center Drum: 3
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: Iron
Service Table: Iron
Draft Tube Description: None
Revolving Machinery:
Standby and Description:
Chariot Float or Balls:
Chariot Description:
Length of Drop Tube:
Clock Weight:
Length of Winding Time:
Drive During Rewind:
Machinery Protection:
Lens Protection:
How Color is Produced: By ruby glass
Red Sectors Description: 0 degree true (N 1/2 E mag.) & 92 degrees true (E 11/16 S mag.)
Where Color Attached: To the lantern
Form of Colored Glass:
Lamp Description: Improved, one-wick
Type of Illuminant:
Number of Spare Lamps: 2
Number of Spare Burners: None
Candle Power:
Closets and Store Rooms
Tower Closet Use:
Oil House Description: First floor, in small pans
Oil House Inside Dimension:
Oil House Construction Material:
Oil House Capacity:
Other (Describe): First floor, fitted with shelvesfor general purposes
Suitability: Dry & suitable
Fog Signal General
Fog Signal Kind: Stevens bell machine
Time to Start: 1 minute
How Long Will Pressure Last:
Manufacturer: Geo. M. Stevens Co., Boston, Mass.
Year of Manufacture: Not known
Characteristic: A double blow every 15 sec.
Duplication: None
Timing Device:
If whistle, siren, or trumpet, Pressure at Which Blown:
Height Above Water:
Compass Direction:
Distance and Direction:
Water Supply:
Reached from Lighthouse:
Description of Fog Signal Building:
Pressure And Recording Gauge:
Bell Signal
Weight: 1,200 lbs.
Metal: Bell metal
Diameter: 38"
Height: 28"
Time: 1.5 hours
Weights for Operation:
Location: No tower
Coloring: White
Construction Materials: Wood
Number of Rooms: 6
Number of Dwellings:
Heating Plant:
Number of Keepers: 1 each
Furnished Quarters:
NOT Furnished Quarters:
Outhouse Coloring:
Paths and Walks:
Area Inclosed:
Area of Garden:
Area Timber or Shrubbery:
Cultivation Area Available:
Area Cultivated:
Character of Surroundings:
Stove, Maker:
Stove, Size:
Sink, Maker:
Sink, Size:
Pump, Maker:
Pump, Size:
How Procured: From roof
Quality: Good
Quantity: Ample
Injury Possible: Not liable
Purity Precaution: Tanks are cleaned when necessary
Tank Capacity: 4 tanks, 200 galls. each; 1st floor
Tank Material: Iron
Distilling Apparatus: False
Distilling Manufacturer:
Well Description:
Well Diameter:
Well Lining:
Pump or Bucket:
What Power Used:
Distance from Dwelling:
General Opinion: Fairly healthy
Diseases: Malarial
Prevalency: Spring and fall
Local Causes: Marshes
Recommended Improvements: