Fog Signal General

Fog Signal Kind:

Time to start:

How long will pressure last:

Manufacturer:

Year of Manufacture:

Characteristic:

Duplication:

Timing device:

If whistle, siren or trumpet, Pressure at which blown:

Height above water:

Compass direction:

Location:

Distance and direction:

Water supply:

Reached from Lighthouse:

Desc of Fog signal building:

Pressure and recording gauge:

Lighthouse Inspection Reports Database

Alcatraz Light Station - 1910

Fog Signal General

Gamewell, No. 3

at once

Gamewell Fire Alarm Telegraph Co., NY

SE bell strikes 5 blows with silent interval of 10 sec btwn each stroke followed by silent interval of 25 sec. NW bell strikes 1 blow every 6 sec.

2 bells, one on each end of island, navigation of waters of Bay of San Francisco

312 degrees 35' & 132 degrees 35' about

none needed

by roadway

SE bell house 14' x 12' x 8'. Roof projects over bell 7', fitted with 2 windows & tool closet. NW bell is same, but no roof extension. Weight towers are 30' high.

Report Sections:

Premises | Lantern and Fixtures | Ventilators and Watchroom | Illuminating Apparatus | Closets and Storerooms

Lighthouse Access | Station Boat Info | Tools and Accessories | Light Vessel Specific | Inspection Reports

Supplemental Reports

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