Report for Cape Hinchinbrook Light Station (Alaska) - 1926

District: 13th
Inspector: Various
Location: On south western peninsula of Hinchinbrook Island, eastern side of Hinchinbrook Entrance to Prince William sound.
Date of Report: 11/03/1926
Latitude: 60° 14' 05"
Longitude: 146° 39' 06"
Site: Public lands set aside by executive order.
Date of Reservation: 11/29/1906
Date of Deed:
Date of Permission:
Date of Lease:
Area of the Entire Site: 8.5 sq. miles
Area Inclosed: None
Character of Soil:
Distance of tower from Nearest High-Water Mark: 75 feet.
Inclosures to Premises / Type of Fence: None
Wharf or Landing on Premises: Wharf in small cove 440 feet N 70 degrees W of tower.
Road to Land or Wharf Chararacter of and Distance:
Means to Reach Light Station: By gas boat from Cordova, 52 miles. Monthly mail service by gas boat out of Cordiva, by contract.
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: Concrete tower rising from center of 2 story octagonal shaped building.
Number of Separate Lights: 1
First Built or Established: Nov., 1910
Last Rebuilt, Repaired, or Renovated:
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: 235 feet
Background of Lighthouse as Seen from Sea: Trees
Color of Tower: White
Color of Tower/ How Produced: Paint.
Tower Connection: On same building.
Object of Navigation: General coastwise navigation, marking Hinchinbrook Entrance to Prince William Sound.
Building Materials: Concrete.
General Description:
Wall Thickness at Base:
Wall Thickness at Parapet:
Diameter at Base:
Diameter at Parapet:
Kind of Stairway and Steps: Iron.
Number of Landings:
Size of Glass: 20" x 20"
Number of Windows and Size of Sash: 4 - 2' 0" x 4' 0"
Number of Doors: 3 - 2' 8" x 6' 8"
Kind of Foundation and Depth Below Surface:
Character of Soil Surrounding the Lighthouse:
Soil Susceptibility:
Miscellaneous Remarks: General type of structure is a 2 story octagonal-shaped concrete building surmounted centrally by a low concrete tower & lantern. 1 story annex on southerly face of building.
Lantern and Fixtures
Order of Lantern: 1st
Shape of Lantern: Polygonal
Diameter to Glass:
Diameter in the Clear:
Number of Sides: 16
Type of Bars: Vertical
Thickness of Bars:
Height Glazed: 9' 9-7/8"
Number of Plates in Height: 3
Number of Plates Each Side: 3
Thickness of Plates: 3/8"
Size of Plates: Upper, 3' 11" x 2' 4"; middle 3' 3" x 2' 4"; lower 2' 6.75" x 2' 4"
Number of Storm Panes: None
Unglazed Side of Lantern: None.
What Bearings:
Construction Material Lantern: Wrought & cast iron.
Construction Material Roof / Cowl: Cast iron.
Ventilator / Cowl: Cast iron.
Lightning Spindle: Brass with platinum point.
Description of Lightning Rod:
Balustrade: Iron
Lantern Doors: Brass cast, brass hinges & lock with glass panels.
Floor of Lantern: Cast iron plates.
Watchroom Doors: No door, hatchway.
Parapet Diameter:
Location / Number: In watchroom
Ladders / Cleaning Arrangement: Iron
Curtain Hooks / Hanger: Brass, screwed to lantern posts, Spring roller curtains.

How is Watchroom Fitted: No fittings.
How is Relief Called: None.
Where is Call System Led:
Illuminating Apparatus
Kind of Apparatus: 3 hours.
Intensity in Candles:
Name of Maker: Barbier, Benard & Turenne
Year Made: Unknown
Marks and Number: U. S. L. H. E. 320
Order of Apparatus: 3rd
Inside Diameter: 3' 3.4"
Light Characteristic: Flashing white every 5 seconds. Flash 0.4 sec., eclipse 4.6 sec.
Time of Revolution: 20 seconds.
Flash Interval: Every 5 seconds
Duration of Flash: 0.4 seconds
Arc of Each Fixed Part: 90 degrees
Number of Panels: 4
Number of Flash Panels: 4
Arc of Each: 90 degrees
Number of Elements in Central Drum: 7
Number of Prisms Above Center Drum: 11
Number of Prisms Below Center Drum: 4
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: Lens supported on a 13.25" column which rises from mercury float located on watchroom floor.
Service Table:
Draft Tube Description: None
Revolving Machinery:
Standby and Description:
Chariot Float or Balls: Mercury float
Chariot Description:
Length of Drop Tube: 11" diam., 26' 0" high,
Clock Weight: About 185 lbs.
Length of Winding Time: 3 hours.
Drive During Rewind: Yes.
Machinery Protection: By metal case, 22.5" wide, 20.75" high, fitted with 6 glass doors & glass back panel.
Regulated: By friction governor.
Lens Protection: Yes, cloth
How Color is Produced:
Red Sectors Description:
Where Color Attached:
Form of Colored Glass:
Lamp Description: Type A, 2 tank system, 3rd order
Type of Illuminant: I.O.V.
Number of Spare Lamps: 1
Number of Spare Burners: Not known but spare parts are kept on hand.
Candle Power: 1000 cp

Clock Cord Description
Revolving Cord: Cord
Size of Clock Cord: 3/4"
Length of Clock Cord: 96.5'
How Led: Through 2 single blocks.
Diameter and Length of Clock Drum: 10" x 7"

Vapor Oil Lamp
Number of Wicks or Mantels: 1 mantel
Diameter of Outside Wick:
Diameter of Mantel: 55mm
Diameter of Circum Circle:

Mercury Float
Inside Diameter of Trough: 4' 1.5"
Inside Depth of Trough: 7.5"
Outside Diameter of Float: 4'
Depth of Float: 7.75"
Weight of Mercury in Pounds: 187 lbs.
How Often is Mercury Renewed: Not renewed; is strained & replaced occasionally.
Closets and Store Rooms
Tower Closet Use: No closets in tower.
Oil House Description: 50 feet west of main building.
Oil House Inside Dimension: 8' x 8' x 8' 6"
Oil House Construction Material: Frame, soncrete foundation.
Oil House Capacity: 600 5-gal. cans.
Other (Describe): On 1st floor, not fitted, used as oil room.
Suitability: Suited for purposes intended.
Fog Signal General
Fog Signal Kind: Diaphone, Type F, 1st class air siren sounded on same characteristis if diaphone is disabled.
Time to Start: 15 to 20 minutes.
How Long Will Pressure Last: Only a few blasts.
Year of Manufacture:
Characteristic: 5 sec blast, 40 sec. silent, 5 sec. blast, 40 sec. silent.
Duplication: Engines, compressors & blast device. There is only 1 diaphone but a siren is avilable for use if diaphone is disabled.
Timing Device: Geared to engine by chain drive & belt.
If whistle, siren, or trumpet, Pressure at Which Blown: 39 lbs.
Height Above Water: 198 feet
Compass Direction: South (180 degrees)
Location: In same building as light, 1st floor, southerly (seaward) side.
Distance and Direction: In same building.
Water Supply: From cisterns.
Reached from Lighthouse: In same building.
Description of Fog Signal Building: 2 story octagonal shape reinforced concrete building lined with hollow tile & plastered. Ground floor is used for engine room, fuel, furnace, tank & provision rooms. Quarters are on 2nd floor.
Pressure And Recording Gauge: Recording pressure gauge installed May 19, 1912. American Steam Gauge & Valve Mfg. Co., Boston
Internal Combustion Signal
Fog Signal Kind:
Internal Combustion Kind: 2 hor., oil
Internal Combustion Manufacturer: Mietz & Weiss, NY
Internal Combustion Date: May 1, 1906
Internal Combustion Size: 10 x 12
Internal Combustion Horsepower: 18
Internal Combustion Fuel: Mineral oil
Internal Combustion Starter: Kerosene torch
Compressor Maker: The J. Geo. Layner Eng. Works, Denver, Co. No date
Compressor Seat: Same bed, chain drive
Compressor Machinery:
Compressor Diameter: 8.5"
Compressor Stroke: 10"
Compressor RPMs: 135 rpm
Character of Air Inlet: 8" disk
Kind of Unloader: Unloading device.
Diameter of Delivery Pipe: 2"

Air Receiver
Number: 1
Diameter: 4'
Height: 20' 8"
Capacity Cubic Feet: 258
Pressure in Each: 80 lbs.
Make of Reducing Valve:
Location: Same building, 2nd floor
Coloring: White
Construction Materials: Concrete
Number of Rooms: 7, Sitting room, kitchen, 5 bedrooms, hall, pantry & provision room, all on 2nd floor.
Number of Dwellings: 1
Heating Plant: Boynton return flue hot water heater. Heating capacity 1500 sq. ft. direct radiation, 17 radiators, Boynton Furnace Co. NY
Number of Keepers: 3, all in same building
Furnished Quarters: All
NOT Furnished Quarters: None
Outhouses: Shop & storehouse; oil & paint house, engine & car house; boat house & hoist house on wharf at landing.
Outhouse Coloring: White, red roof
Paths and Walks: Concrete to oil house & shop.
Area Inclosed:
Area of Garden:
Area Timber or Shrubbery:
Cultivation Area Available: None.
Area Cultivated: None.
Character of Surroundings: Woods, soft tundra or vegetable matter over rock.
Stove, Maker: Majestic Mfg. Co. St. Louis (Majastic range 847)
Stove, Size: 38.5" wide, 28.5" deep
Sink, Maker: Standard
Sink, Size: 20" x 30"
Pump, Maker: Blacks & Knowles, NY & Boston
Pump, Size: 4.5" x 2.75" x 4"
Lamps: 6 table, 6 hand, 6 hand lanterns
How Procured: Rain water from roof.
Quality: Good
Quantity: Yes.
Injury Possible: No.
Purity Precaution: In cistern, filter wall of soft burnt brick, lain in cement mortar.
Tank Capacity: Cistern underground 11,850 gals. on northerly side of building.
Tank Material: Concrete.
Distilling Apparatus: False
Distilling Manufacturer:
Well Description:
Well Diameter:
Well Lining:
Pump or Bucket: Pump from cistern
What Power Used: Air & hand
Distance from Dwelling: Cistern 18'. Water pumped by air pressure or by hand to wood stave tank in
General Opinion: Excellent
Diseases: None.
Local Causes:
Recommended Improvements:
Access to Lighthouse: Landing on exposed sand & boulder beach, best at 1/2 tide or lower; concrete wharf above highwater line spanning small creek. Supplies lifted brom beach to wharf by means of stiff leg derrick & hoisting engine on wharf. rail tram from wharf up hill to sta
Distance and Direction: 440 feet, 290 degrees
Miscellaneous Remarks: 2 hoists of same size & make. 1 is located on wharf at landing & is operated in connection with the derrick; the other is located near the station & used for hauling supplies up the tram.
Boat #1
Boat Number: 31
Type: Whaleboat
Length: 4' 6"
Width: 14'
When Built: Unknown
Date Harbored at Station: Oct. 1910
Sails: True
Suited to Work: Yes
Boat #2
Boat Number: 69
Type: Dory
Length: 5' 4"
Width: 19'
When Built: 4/2/1926
Date Harbored at Station: July 23, 1926
Sails: False
Suited to Work: Yes

Power Boat
Engine Type: Outboard Motor
Horsepower: 3 HP
Engine Maker: Elto
Spare Coil: Atwater Kent Unisparker ignition.
Propeller Diameter:
Propeller Pitch:

Hoisting Engines
Hoisting Engine Kind:
Engine RPMs: 550 rpm
Engine Diameter: 6"
Engine Stroke: 6.5"
Engine Boiler:
Engine Maker and Date: Mietz & Weiss, NY, May 1, 1906
Serial Number:
Cylinders and Size: 2 cylinder
Horsepower: 12 HP
Fuel: Kerosene
Hoist Starter:
Hoist Miscellaneous:

General Information:
Boats on Station: In boathouse