Report for Baltimore Light Station (Maryland) - 1908

District: 5th
Inspector: Major W.E. Craighill, Lighthouse Engineer
Location: Southerly entrance to Craighill Channel, MD
Date of Report: 10/03/1908
Latitude: 39° 03' 36"
Longitude: 76° 23' 52"
Site: In Chesapeake Bay to W of S entrance to Craighill Channel
Date of Reservation:
Date of Deed:
Date of Permission:
Date of Lease:
Area of the Entire Site:
Area Inclosed:
Character of Soil: Site, submarine
Distance of tower from Nearest High-Water Mark: Stands in 24' of water at high tide
Inclosures to Premises / Type of Fence: None
Wharf or Landing on Premises: 2 ladders on tower
Road to Land or Wharf Chararacter of and Distance: None
Means to Reach Light Station: By private boat from Baltimore. In good weather, from W shore in small boat.
Distance to Nearest Road: Gibsons Island road, 2.5 nautical miles. Road on Broad Neck, 3 nautical miles.
Distance to Post Office: 3 nautical miles to Skidmore.
Distance to Village: 10 nautical miles to Annapolis
Facilities for Public Conveyance: None
Facilities for Private Conveyance: None except by boat
Means Used for Support of Lantern: Tower
Number of Separate Lights: One
First Built or Established: 10/1/1908
Last Rebuilt, Repaired, or Renovated:
Condition at This Date: New
Shape of Tower in Plan: Octagonal
Form of Tower: Foundation from water to veranda, cylindrical; above veranda, octagonal.
Height from Base to Ventilator Ball: 143' 6"
Height of Focal Plane Above Mean High Water: 55' 7"
Background of Lighthouse as Seen from Sea: Water
Color of Tower: Lantern, black; mansard roof, slate; house, light brick; cylinder, brown
Color of Tower/ How Produced: Painted, except brickwork
Tower Connection: Keeper's dwelling rests on foundation cylinder, with lantern on top of dwelling.
Object of Navigation: Aid for entering & leaving S end of Craighill Channel
Building Materials: Wooden caisson supporting iron cylinder filled with concrete & large stone, on top of which is a brick dwelling with wooden roof covered with tin & surmounted by lantern of wood & iron.
General Description:
Wall Thickness at Base: Wooden caisson filled with concrete, 48' square.
Wall Thickness at Parapet: Lantern parapet walls 5.5" thick
Diameter at Base: 48'
Diameter at Parapet: Lantern parapet, octagonal, 6' 4 3/4" inside.
Kind of Stairway and Steps: Circular, wooden
Number of Landings: 5
Size of Glass: Cellar, 12.5" in dia. x 1/4" thick; 1st & 2nd stories, 12" x 15"; 3rd story, 9 15/16" x 19 1/4"
Number of Windows and Size of Sash: 8 in cellar, brass, 15 5/8 in dia.; 10 in 1st & 2nd stories, 2' 5" x 2' 9"; 4 in 3rd story, 2' x 1' 10"
Number of Doors: 25
Kind of Foundation and Depth Below Surface: Sand & gravel, 82' below high-water mark
Character of Soil Surrounding the Lighthouse: Soft mud at bottom of Bay.
Soil Susceptibility:
Miscellaneous Remarks:
Lantern and Fixtures
Order of Lantern: 4th
Shape of Lantern: Polygonal
Diameter to Glass: 3' 6"
Diameter in the Clear:
Number of Sides: 8
Type of Bars: Vertical
Thickness of Bars:
Height Glazed: 3'
Number of Plates in Height: One
Number of Plates Each Side: One
Thickness of Plates: 3/8"
Size of Plates: 3/8" x 34 1/8" x 36 9/16" outside, & 3/8" x 32 1/8" x 36 7/8" inside
Number of Storm Panes: 6
Unglazed Side of Lantern: None
What Bearings:
Construction Material Lantern: Wood, iron, tin & copper
Construction Material Roof / Cowl: Iron rafters, covered with 8 copper plates 1/32" thick, & lined with 8 zinc plates 1/32" thick.
Ventilator / Cowl: Copper 1/16" thick
Lightning Spindle: With platinum point, is placed on top of copper ventilator ball.
Description of Lightning Rod: Lightning conductor ribbon, 1/8" x 1.5" copper, fastened to iron sill of lantern with brass tap bolt, carried down side of lantern, over lantern gallery deck & down side of mansard roof & side of house to undeside of pinnacle on water-closet.
Balustrade: A gallery inclosed by an iron railing surrounds the lantern
Lantern Doors: 1, hung with hinges & fitted with lock.
Floor of Lantern: Yellow pine, 7/8" thick.
Watchroom Doors: A door, 2'4" x 6' 8", with upper panels glazed, leads into stairway to lantern.
Parapet Diameter: Watchroom, octagonal, 23' 6" in dia.
Location / Number: 3 ventialtors, 5" in dia. with regulating disks are placed in sides of parapet.
Ladders / Cleaning Arrangement: None needed
Curtain Hooks / Hanger: 8. Screwed into the angles.

How is Watchroom Fitted: Has work bench, 3' high, 2' 6" wide & 5' long, with top 2" thick & 2 drawers 8" deep
How is Relief Called: Electric bell attached to lens to notify keeper when lens stops revolving
Where is Call System Led: Down through center to kitchen.
Illuminating Apparatus
Kind of Apparatus: 4 hours
Intensity in Candles:
Name of Maker: Barbier & Benard
Year Made: 1896
Marks and Number: U.S.L.H.E. 404
Order of Apparatus: 4th
Inside Diameter: 500 mm
Light Characteristic: Flashing white every 10 secs
Time of Revolution: Once each minute
Flash Interval: 10 secs
Duration of Flash: 5 secs
Arc of Each Fixed Part:
Number of Panels: 4
Number of Flash Panels: 6
Arc of Each: 60 degrees
Number of Elements in Central Drum: 3
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 base, standards wrought iron covered with brass tubing.
Service Table: Or work bench, 1 in 3rd story or watchroom
Draft Tube Description: Not any
Revolving Machinery: Operated by clockwork
Standby and Description:
Chariot Float or Balls: Balls
Chariot Description:
Length of Drop Tube: 38'
Clock Weight:
Length of Winding Time: 4 hours
Drive During Rewind:
Machinery Protection: Glass case
Regulated: Skew-gear driven governor fans.
Lens Protection:
How Color is Produced:
Red Sectors Description:
Where Color Attached:
Form of Colored Glass:
Lamp Description: 4th order improved, 1 wick. (3 lamps at station: 2 in service, 1 spare lamp.)
Type of Illuminant:
Number of Spare Lamps: 1
Number of Spare Burners: None
Candle Power:

Chariot Balls
Balls Description: Revolves on semicircular grooves
Cage to Separate Balls: False
Number of Balls: 20
Diameter of Balls: 1/2 "
Closets and Store Rooms
Tower Closet Use: 4 closets with shelves & hooks for clothes, & 1 large double closet with shelves
Oil House Description: Oil room is built in cellar; it has walls of brick & concrete, a cement floor, & is fitted with an iron door. Cement on I beams forms the ceiling.
Oil House Inside Dimension:
Oil House Construction Material:
Oil House Capacity:
Other (Describe): In cellar: storeroom fitted w/ shelves for provisions, & room for wood & coal. On 1st floor: storeroom fitted w/ dresser, w/ drawers & shelves for provisions; also 2 closets fitted w/ shelves & hooks for clothes. On 2nd floor: gen. storeroom
Suitability: Dry. Suited.
Fog Signal General
Fog Signal Kind: Gamewell apparatus striking a bell
Time to Start:
How Long Will Pressure Last:
Manufacturer: Gamewell Fire-Alarm Telegraph Company.
Year of Manufacture: 1907
Characteristic: During thick or foggy weather, the bell will be struck 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: Bell sits on brackets on E or channel side of tower, 44' above high-water mark.
Pressure And Recording Gauge:
Bell Signal
Weight: 1200 lbs
Metal: 78 parts copper, 22 tin (bell metal)
Diameter: 3' 4"
Height: 2' 6"
Time: 1 hour 30 minutes
Manufacturer: Gamewell Fire-Alarm Telegraph Company.
Weights for Operation:
Location: In the tower
Coloring: Foundation, brown; 1st & 2nd stories, light gray brick with brown trim; shutters green; mansard roof, slate color.
Construction Materials: Concrete, iron, brick & wood.
Number of Rooms: 4 in cellar, 3 rooms, hall & passageway 1st floor
Number of Dwellings:
Heating Plant:
Number of Keepers: 2
Furnished Quarters:
NOT Furnished Quarters:
Outhouses: Water closet overhangs cylinder on SW side.
Outhouse Coloring: Brown
Paths and Walks: Veranda around house
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 rainfall on roof
Injury Possible: Not liable; the 2 cisterns are well above high-water mark
Purity Precaution: Cut-offs have been placed in the downspouts, & manhole frames in cellar have been raised above cellar floor & covers fit snugly.
Tank Capacity: 3,500 gals. under cellar floor
Tank Material: Concrete, plastered inside with cement
Distilling Apparatus: False
Distilling Manufacturer:
Well Description:
Well Diameter:
Well Lining:
Pump or Bucket:
What Power Used:
Distance from Dwelling:
General Opinion: Fairly good
Diseases: Malarial, to an inconsiderable extent.
Prevalency: Not noticeably
Local Causes: Very few on land near by
Recommended Improvements: