Report for Dry Tortugas (Florida) - 1913

District: 7th
Inspector: Revised by Dist. Inspector 7th Dist.
Location: On Loggerhead Key, the W most key of the Tortugas group and the FL reefs. N'ly side of W'ly end of Straits of FL.
Date of Report: 06/02/1913
Latitude: 24° 37' 59"
Longitude: 82° 55' 13"
Site: Lighthouse built on public land under authority of Act of Congress
Date of Reservation:
Date of Deed:
Date of Permission:
Date of Lease:
Area of the Entire Site: Not surveyed
Area Inclosed:
Character of Soil:
Distance of tower from Nearest High-Water Mark: 300'
Inclosures to Premises / Type of Fence:
Wharf or Landing on Premises: Wharf on each side of key
Road to Land or Wharf Chararacter of and Distance:
Means to Reach Light Station: By boat - 6.5 miles from Key West.
Distance to Nearest Road:
Distance to Post Office:
Distance to Village:
Facilities for Public Conveyance:
Facilities for Private Conveyance:
Means Used for Support of Lantern: Brick tower
Number of Separate Lights: 1
First Built or Established: 1826
Last Rebuilt, Repaired, or Renovated: 1858
Condition at This Date:
Shape of Tower in Plan:
Form of Tower:
Height from Base to Ventilator Ball:
Height of Focal Plane Above Mean High Water: 150'
Background of Lighthouse as Seen from Sea: Sky
Color of Tower: Lower 1/2 white, upper 1/2 black
Color of Tower/ How Produced: Paint
Tower Connection: Detached
Object of Navigation: Primary seacoast
Building Materials: Brick
General Description:
Wall Thickness at Base: 3' 9"
Wall Thickness at Parapet: 2' 9"
Diameter at Base: 28'
Diameter at Parapet: 11/
Kind of Stairway and Steps: Granite
Number of Landings:
Size of Glass: Watchroom 9" x 12" - 6 lights; tower - 10" x 14.5" - 8 lights
Number of Windows and Size of Sash: Watchroom - 1 - 1' 9" x 3' 6"; tower - 5 - 2' 10" x 3' 10.5"
Number of Doors: 1 - 3' 9.5" x 7' 8"
Kind of Foundation and Depth Below Surface:
Character of Soil Surrounding the Lighthouse:
Soil Susceptibility:
Miscellaneous Remarks:
Lantern and Fixtures
Order of Lantern: 1st
Shape of Lantern: Polygonal
Diameter to Glass:
Diameter in the Clear:
Number of Sides: 2
Type of Bars: Vertical & horizontal
Thickness of Bars:
Height Glazed: 9' 2"
Number of Plates in Height: 3
Number of Plates Each Side: 3
Thickness of Plates: 5/16"
Size of Plates:
Number of Storm Panes:
Unglazed Side of Lantern: None
What Bearings:
Construction Material Lantern: Brass
Construction Material Roof / Cowl: Copper
Ventilator / Cowl: Copper
Lightning Spindle: On ball
Description of Lightning Rod:
Balustrade: Yes
Lantern Doors: Iron door
Floor of Lantern: Cast iron
Watchroom Doors: None. manhole with spiral iron ladder.
Parapet Diameter:
Location / Number: 5 in parapet
Ladders / Cleaning Arrangement: 2
Curtain Hooks / Hanger: Secured to rabbet.

How is Watchroom Fitted: Iron floor - wood floor outside of base casting of apparatus. Locker in center under mercury trough.
How is Relief Called: None
Where is Call System Led:
Illuminating Apparatus
Kind of Apparatus: About 16 hours
Intensity in Candles: 1,700,000
Name of Maker: Henry LePaute
Year Made: 1909
Marks and Number: USLHE
Order of Apparatus: 2nd
Inside Diameter: Distance btwn bullseyes 4' 7 1/8"
Light Characteristic:
Time of Revolution:
Flash Interval:
Duration of Flash:
Arc of Each Fixed Part:
Number of Panels: 2
Number of Flash Panels: 2
Arc of Each: 160 degrees
Number of Elements in Central Drum: 7 besides bullseyes
Number of Prisms Above Center Drum: 15
Number of Prisms Below Center Drum: 9
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: Circular cast iron
Service Table:
Draft Tube Description: Galv. sheet iron about 5" dia.
Revolving Machinery:
Standby and Description:
Chariot Float or Balls: Mercury float
Chariot Description:
Length of Drop Tube: About 9" about 140"
Clock Weight:
Length of Winding Time: About 16 hours
Drive During Rewind: Yes
Machinery Protection: Brass case with glass box
Regulated: Governor
Lens Protection: None
How Color is Produced:
Red Sectors Description:
Where Color Attached:
Form of Colored Glass:
Lamp Description: 280 Type A
Type of Illuminant: Oil
Number of Spare Lamps: 1 spare IOV lamp, 1 substitute lamp, 2 wick oil lamp.
Number of Spare Burners: 2 for substitute lamp
Candle Power: 1, 700, 000

Clock Cord Description
Revolving Cord: Steel wire
Size of Clock Cord: 1/4"
Length of Clock Cord: 165'
How Led: Thru 2 sheaves down thru hollow central brick column.
Diameter and Length of Clock Drum: 8" dia. 9 3/4 long

Vapor Oil Lamp
Number of Wicks or Mantels: 1 mantel
Diameter of Outside Wick:
Diameter of Mantel: 2 1/4"
Diameter of Circum Circle:

Mercury Float
Inside Diameter of Trough: Approx. 52"
Inside Depth of Trough: Approx. 10"
Outside Diameter of Float: Approx. 52"
Depth of Float:
Weight of Mercury in Pounds: No data
How Often is Mercury Renewed: Not necessary to renew is occasionally cleaned.

Occulting Light
Characteristic: 0.5 sec flash, 20 sec interval
Time Limit: 5 sec slow or fast.
Eclipse Type:
Size and Amplitude:
Axis Rotation:
Axis Relation:
Screen Revolution:
Screen Number:
Screen Time:
Screen Form:
Screen Mounting:
Screen Order:
Screen Date:
Valve Maker:
Valve Pattern:
Reliability: Yes
Closets and Store Rooms
Tower Closet Use: None
Oil House Description: 2 story brick about 15' from tower. (shelves locker upper story)
Oil House Inside Dimension: 11' 6" x 14'
Oil House Construction Material: Brick & wood
Oil House Capacity: About 700 5-gal cans
Other (Describe):
Location: 1 2-story dwelling about 250' SW of tower
Coloring: Brick with white trimmings
Construction Materials: Brick & wood
Number of Rooms: 8 - 4 large & 4 small
Number of Dwellings:
Heating Plant:
Number of Keepers: 1 keeper & 2 assts.
Furnished Quarters:
NOT Furnished Quarters:
Outhouses: 2 kitchens: 1 story frame for keeper, 2 story brick for asst.
Outhouse Coloring: Keeper kitchen - white, assts kitchen brick.
Paths and Walks: Concrete
Area Inclosed:
Area of Garden:
Area Timber or Shrubbery:
Cultivation Area Available: None
Area Cultivated: None
Character of Surroundings: Sand
Stove, Maker: Oue "Perfection" oil stove (3)
Stove, Size:
Sink, Maker: No marks
Sink, Size: 2' 4" x 1' 4" (3)
Pump, Maker: Deming Co. (3)
Pump, Size: #3 (1); #2 (2)
Lamps: 3 brass table lamps, 3 bronzed tin hand lamps.
How Procured: Rain water from roof to cisterns
Quality: Good
Quantity: Ample
Injury Possible: No
Purity Precaution: None
Tank Capacity: 2 - 4600 gal
Tank Material: Circular brick cisterns
Distilling Apparatus: False
Distilling Manufacturer:
Well Description:
Well Diameter:
Well Lining:
Pump or Bucket:
What Power Used:
Distance from Dwelling:
General Opinion: Excellent
Diseases: None past 5 years
Prevalency: No
Local Causes: No
Recommended Improvements: Nothing
Access to Lighthouse: Wooden wharf on W side; another wooden wharf on E side.
Distance and Direction: About 1000' WSW about 800' ESE
Miscellaneous Remarks: Station much in need of separate quarters for keepers.
Boat #1
Boat Number: 27
Type: Dinghy
Length: 4' 10"
Width: 14'
When Built: Not known
Date Harbored at Station: Sept. 1868
Sails: True
Suited to Work: Yes
Boat #2
Boat Number: 1
Type: Motor
Length: 7.5'
Width: 24.5'
When Built: May, 1907
Date Harbored at Station: Mar. 24, 1913
Sails: True
Suited to Work: Yes

Power Boat
Engine Type: 1 gas
Horsepower: 8
Engine Maker: Lathrop
Spare Coil: Enduro American Elec. works, Philadelphia, PA
Magnet: None
Battery: Dry cells, 2 sets - 8 each
Propeller Diameter: 18"
Propeller Pitch: 24"

General Information:
Boats on Station: In boathouse