Report for East Brother Island (California) - 1919
| General |
| District: | 12th |
| Inspector: | D. L. Jenkins, Asst. Supt. |
| Location: | California, north end of San Francisco Bay, entrance to San Pablo Bay, off Point San Pablo. |
| Date of Report: | 12/06/1919 |
| Latitude: | 37° 57' 42" |
| Longitude: | 122° 25' 58" |
| Premises |
| Site: | Military reservaton. |
| Date of Reservation: | |
| Date of Deed: | |
| Date of Permission: | 03/02/1873 |
| Date of Lease: | |
| Area of the Entire Site: | 250' x 180' |
| Area Inclosed: | 170' x 150', wooden picket fence |
| Character of Soil: | |
| Distance of tower from Nearest High-Water Mark: | 18 feet |
| Inclosures to Premises / Type of Fence: | |
| Wharf or Landing on Premises: | On east side of island. |
| Road to Land or Wharf Chararacter of and Distance: | |
| Means to Reach Light Station: | Boat |
| Distance to Nearest Road: | |
| Distance to Post Office: | Winehaven, Cal, 1 mile |
| Distance to Village: | |
| Facilities for Public Conveyance: | Railroad at Richmond, Calif., 4 miles |
| Facilities for Private Conveyance: | |
| Means Used for Support of Lantern: | Wooden tower attached to dwellling. |
| Number of Separate Lights: | 1 |
| First Built or Established: | March 1, 1874 |
| Last Rebuilt, Repaired, or Renovated: | Repaired March, 1904. |
| 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: | 62.5 feet |
| Background of Lighthouse as Seen from Sea: | Hills & sky. |
| Color of Tower: | White, gray trimmings. |
| Color of Tower/ How Produced: | Paint |
| Tower Connection: | Attached to dwellling |
| Object of Navigation: | General navigation, San Francisco Bay; marks east channel at entrance to San Pablo Bay. |
| Building Materials: | Wood. |
| General Description: | |
| Wall Thickness at Base: | |
| Wall Thickness at Parapet: | |
| Diameter at Base: | |
| Diameter at Parapet: | |
| Kind of Stairway and Steps: | Spiral wooden. |
| Number of Landings: | |
| Size of Glass: | 10" x 12" |
| Number of Windows and Size of Sash: | 4 @ 24" x 25" & 24" x 27"; 2 @ 34" x 26" & 34" x 27.75" |
| Number of Doors: | 4; 29.5" x 77.5", 30" x 83.25", 31.75" x 82.25", 24" x 77.25" |
| Kind of Foundation and Depth Below Surface: | |
| Character of Soil Surrounding the Lighthouse: | |
| Soil Susceptibility: | |
| Miscellaneous Remarks: | Tower is old & vibrates in high winds. |
| Lantern and Fixtures |
| Order of Lantern: | 4th |
| Shape of Lantern: | Polygonal |
| Diameter to Glass: | 7' 1" |
| Diameter in the Clear: | |
| Number of Sides: | 10 |
| Type of Bars: | Vertical |
| Thickness of Bars: | 1.25" |
| Height Glazed: | 36" |
| Number of Plates in Height: | 1 |
| Number of Plates Each Side: | 1 |
| Thickness of Plates: | 1/4" |
| Size of Plates: | 26" x 37.5" |
| Number of Storm Panes: | |
| Unglazed Side of Lantern: | None. |
| What Bearings: | |
| Construction Material Lantern: | Iron; lower part wood lined. |
| Construction Material Roof / Cowl: | Lantern, iron; tower, sheet copper. |
| Ventilator / Cowl: | Iron. |
| Lightning Spindle: | None. |
| Description of Lightning Rod: | |
| Balustrade: | Wood. |
| Lantern Doors: | Iron; hinged; 22" x 47" |
| Floor of Lantern: | Wood. |
| Watchroom Doors: | Wood, at bottom f spiral stairs; 24.5" x 77.5" |
| Parapet Diameter: |
| Ventilators |
| Location / Number: | 4 in lower part of lantern. |
| Ladders / Cleaning Arrangement: | 1 wood, movable. |
| Curtain Hooks / Hanger: | Screwed into lantern top. |
| Watchroom |
| How is Watchroom Fitted: | Keepers quarters used as watch room. |
| How is Relief Called: | None. |
| Where is Call System Led: |
| Illuminating Apparatus |
| Kind of Apparatus: | 3 hours |
| Intensity in Candles: | 2900 cp |
| Name of Maker: | Not known |
| Year Made: | Not known |
| Marks and Number: | None |
| Order of Apparatus: | 4th |
| Inside Diameter: | 500 mm |
| Light Characteristic: | |
| Time of Revolution: | 10 seconds |
| Flash Interval: | |
| Duration of Flash: | 7.5 seconds |
| Arc of Each Fixed Part: | |
| Number of Panels: | 3 with prisms; 1 blank |
| Number of Flash Panels: | |
| Arc of Each: | |
| Number of Elements in Central Drum: | 5 |
| 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: | Whole lens revolves |
| How Flash is Produced: | |
| Number of Vertical Elements Panel: | |
| Fixed Lens Covered: | |
| Pedestal: | 4th order, 4 legs; clockwork in upper section. |
| Service Table: | |
| Draft Tube Description: | Galv. iron, 8" diam. held in place with straps. |
| Revolving Machinery: | 4th order, Elec. No. Wks. San Francisco. 1912. |
| Standby and Description: | |
| Chariot Float or Balls: | Balls |
| Chariot Description: | |
| Length of Drop Tube: | 19' 3" |
| Clock Weight: | 118 lbs. |
| Length of Winding Time: | 3 hours |
| Drive During Rewind: | No |
| Machinery Protection: | Glass enclosed case. |
| Regulated: | Fan govener. |
| Lens Protection: | Yes, brass; (IOV shield) |
| How Color is Produced: | |
| Red Sectors Description: | |
| Where Color Attached: | |
| Form of Colored Glass: | |
| Lamp Description: | 35 mm I.O.V. |
| Type of Illuminant: | |
| Number of Spare Lamps: | 2 spare I.O.V., 1 spare 4th order oil. |
| Number of Spare Burners: | |
| Candle Power: |
| Clock Cord Description |
| Revolving Cord: | Steel clock cord |
| Size of Clock Cord: | 1/8" |
| Length of Clock Cord: | 40 feet |
| How Led: | Through side of Pedestal |
| Diameter and Length of Clock Drum: | 15" diam. |
| Chariot Balls |
| Balls Description: | Semi-circular grooves |
| Cage to Separate Balls: | False |
| Number of Balls: | 24 |
| Diameter of Balls: | 5/8" |
| Vapor Oil Lamp |
| Number of Wicks or Mantels: | 1 |
| Diameter of Outside Wick: | |
| Diameter of Mantel: | 35mm |
| Diameter of Circum Circle: |
| Occulting Light |
| Characteristic: | Light, 7.5 second, eclipse, 2.5 second. |
| Time Limit: | Unknown |
| 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: |
| Closets and Store Rooms |
| Tower Closet Use: | 5 built-in; used for lamps, himneys, claning apparatur, etc. In good working order & well kept. |
| Oil House Description: | 30 feet from fog signal; shelves. |
| Oil House Inside Dimension: | 4' 8" x 7' 8" x 7' 9" high |
| Oil House Construction Material: | Concrete. |
| Oil House Capacity: | 105 5 gal cans. |
| Other (Describe): | 1 store house, 40 ft. from dwelling, 14' 4" x 30' 0". 3 rooms 1 room for sleeping, 1 wash room. 1 store room. 1 water closet |
| Suitability: | Dry and well suited. |
| Fog Signal General |
| Fog Signal Kind: | 12" steam whistle; 2-30 HP steam boilers. |
| Time to Start: | 45 minutes |
| How Long Will Pressure Last: | |
| Manufacturer: | |
| Year of Manufacture: | |
| Characteristic: | 4 sec blast, 24 sec. silent, 6 sec. blast, 24 sec. silent; Bell, 1 stroke, 15 sec. silent, 1 stroke, 15 sec. silent |
| Duplication: | All in duplicate. |
| Timing Device: | |
| If whistle, siren, or trumpet, Pressure at Which Blown: | 65 lbs. |
| Height Above Water: | 35 feet. |
| Compass Direction: | Vertical |
| Location: | 100 feet east of tower; marks east side of island in entrance to San Pablo Bay. |
| Distance and Direction: | 100 feet. |
| Water Supply: | Rain water; cistern & 2 tanks. |
| Reached from Lighthouse: | |
| Description of Fog Signal Building: | Frame; 27' 3" x 32' 3"; coal shed, fog bell house, wood shed & tool house attached; Size of structure 32' 3" x 49' 5"; white, gray trimmed. red roof. |
| Pressure And Recording Gauge: | 2 pressure gages |
| Bell Signal |
| Weight: | Unknown |
| Metal: | Bronze |
| Diameter: | 38" |
| Height: | 27" |
| Time: | Unknown |
| Manufacturer: | W.T. Garrett, San Francisco, 1878 |
| Weights for Operation: | 700 lbs. |
| Steam Signal |
| Steam Boiler: | Ret. tubular |
| Kind: | |
| Tube: | |
| Dimensions: | |
| Length: | 12 feet |
| Diameter: | 42" |
| Tube Description: | |
| Steam Tube Diameter: | |
| Steam Furnace Kind: | |
| Furnace Length: | |
| Furnace Width: | |
| Furnace Height: | |
| Steam Heat Surface: | |
| Steam Grate Surface: | |
| Number of Grate Bars: | |
| Kind of Grate Bars: | |
| Steam Fuel: | |
| Steam Safety Valve: | |
| Steam Maximum Pressure: | |
| Steam Working Pressure: | |
| Steam Diameter of Smokestack: | |
| Smokestack Height: | |
| Drum Dimension: | |
| Steam Drum Diameter: | |
| Steam Covering: | |
| Steam Boiler Condition: | |
| Steam Boiler Built: | |
| Where Built: | |
| Manufacturer: | Erie City Iron Works, 1909 |
| Steam Heater: | False |
| Kind: | |
| Size: | |
| Heater Time Affect: | |
| Steam Engine Kind: | |
| Steam Engine Revolutions: | |
| Steam Engine Cyl. Diameter: | 4" |
| Steam Engine Piston Stroke: | 9" |
| Steam Engine Pipe Size: | |
| Steam Engine When Built: | |
| Steam Engine Where Built: | |
| Manufacturer: | Moynahan & Altken Boiler Works, 1889. |
| Whistle Signal |
| Whistle Diameter: | 12" |
| Whistle Height: | 20" |
| Whistle Orifice: | 2.5" |
| Whistle Tone: | Single |
| Whistle Chime: |
| Dwelling |
| Location: | Attached |
| Coloring: | White; gray trim; red roof. |
| Construction Materials: | Wood. |
| Number of Rooms: | 4 upper & bath, 5 lower & bath. |
| Number of Dwellings: | 1 double dwellling |
| Heating Plant: | Coal stoves. |
| Number of Keepers: | Keeper in lower, Asst. Keeper in upper. |
| Furnished Quarters: | Keeper & Asst. Keeper |
| NOT Furnished Quarters: | |
| Outhouses: | 2 storerooms & water closet |
| Outhouse Coloring: | White with red roofs. |
| Paths and Walks: | Partly concrete; part plank. |
| Area Inclosed: | |
| Area of Garden: | |
| Area Timber or Shrubbery: | |
| Cultivation Area Available: | None |
| Area Cultivated: | |
| Character of Surroundings: | Rock; loose stone on top. |
| Stove, Maker: | Art Eureka |
| Stove, Size: | #8-20 |
| Sink, Maker: | Unknown |
| Sink, Size: | 16" x 26" |
| Pump, Maker: | |
| Pump, Size: | |
| Lamps: | 1 table & 2 hand, 1 sparte table lamp. |
| Assistant Keepers Dwellings |
| Location: | |
| Coloring: | |
| Construction Materials: | |
| Number of Rooms: | |
| Heating Plant: | |
| Number of Keepers: | |
| Outhouses: | |
| Outhouse Coloring: | |
| Paths and Walks: | |
| Area Inclosed: | |
| Area of Garden: | |
| Area Timber or Shrubbery: | |
| Cultivation Area Available: | |
| Area Cultivated: | |
| Character of Surroundings: | |
| Stove, Maker: | Royal Wedgweed |
| Stove, Size: | 8-18 |
| Sink, Maker: | Unknown |
| Sink, Size: | 16" x 26" |
| Pump, Maker: | |
| Pump, Size: | |
| Lamps: | 1 table, 2 hank. |
| Water |
| How Procured: | Rain water. |
| Quality: | Good. |
| Quantity: | Generally ample |
| Injury Possible: | No, except occasional salt spray in heavy weather. |
| Purity Precaution: | Cleaned once a year; filling holes in cistern screened & plugged in heavy weather. |
| Tank Capacity: | 44,000 gal; 1 tank 25,000, 1 tank 20,000 gal. |
| Tank Material: | Cistern, brick & concrete; tanks, redwood. |
| Distilling Apparatus: | False |
| Distilling Manufacturer: | |
| Well Description: | |
| Well Diameter: | |
| Well Lining: | |
| Pump or Bucket: | |
| What Power Used: | |
| Distance from Dwelling: | Piped to dwelling |
| Healthfulness |
| General Opinion: | Healthful |
| Diseases: | None. |
| Prevalency: | |
| Local Causes: | No. |
| Recommended Improvements: | No. |
| Miscellaneous |
| Access to Lighthouse: | Planks, on wooden piles, 32' x 60' |
| Distance and Direction: | 160 feet East |
| Miscellaneous Remarks: | Wharf rebuilt, 1919. |
| Boats |
| Boat Number: | 47 |
| Type: | Sq. stern, flat bottom row boat |
| Length: | 4' 8" |
| Width: | 14' |
| When Built: | Jan, 1915 |
| Date Harbored at Station: | 1915 |
| Sails: | False |
| Suited to Work: | Yes |
| Hoisting Engines |
| Hoisting Engine Kind: | Hand hoist, Wooden derrick. |
| Engine RPMs: | |
| Engine Diameter: | |
| Engine Stroke: | |
| Engine Boiler: | |
| Engine Maker and Date: | |
| Serial Number: | |
| Cylinders and Size: | |
| Horsepower: | |
| Fuel: | |
| Hoist Starter: | |
| Hoist Miscellaneous: |
| Miscellaneous |
| General Information: | |
| Boats on Station: | Hoisted on davits on wharf. |