Report for Point Retreat Lightstation (Alaska) - 1923

District: 17th
Inspector: Various
Location: Most northerly point of Mansfield Peninsula on Admiralty Island, at junction of Saginaw Channel & Lynn Canal. On sharp point.
Date of Report: 12/12/1923
Latitude: 58° 24' 36"
Longitude: 134° 56' 33"
Site: Public land reserved by Executive Order.
Date of Reservation: 01/06/1901
Date of Deed:
Date of Permission:
Date of Lease:
Area of the Entire Site: 1683 acres
Area Inclosed: None.
Character of Soil:
Distance of tower from Nearest High-Water Mark: 46' to center of tower.
Inclosures to Premises / Type of Fence: No fence.
Wharf or Landing on Premises: Wharf.
Road to Land or Wharf Chararacter of and Distance:
Means to Reach Light Station: Reached only by boat from Juneau, Alaska. 2 passages; high water passage requiring 14' tide for small boat over Mendenhall bar 20 miles. Any tide 383 miles around Doughlas Island.
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: Reinforced concrete fog signal building surmounted by a square concrete tower.
Number of Separate Lights: 1
First Built or Established: 1904
Last Rebuilt, Repaired, or Renovated: 1923
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: 44 feet.
Background of Lighthouse as Seen from Sea: Sky or distant timbered mountains, the latter dark of snow covered; nearby timber from some postions.
Color of Tower: White
Color of Tower/ How Produced: Plastered with white medusa cement.
Tower Connection: Detached; 170 feet distant.
Object of Navigation: General navigation, main inside route. All ocean going vessels for Western Alaska, Sitka vessels, & local fishing & gas boats must pass this station.
Building Materials: Reinforced concrete.
General Description:
Wall Thickness at Base:
Wall Thickness at Parapet:
Diameter at Base:
Diameter at Parapet:
Kind of Stairway and Steps: Iron spiral stairway to lantern rower.
Number of Landings:
Size of Glass: 12" x 12", 12 such panes.
Number of Windows and Size of Sash: 3 4 light windows, N, W, S sides. Sash 2' x 3'.
Number of Doors: 1 leading out on roof 2' x 5'. 2 @ 2' 2" x 6' 0".
Kind of Foundation and Depth Below Surface:
Character of Soil Surrounding the Lighthouse:
Soil Susceptibility:
Miscellaneous Remarks: Tower located on top of fog signal building which is 20' x 36' with a molded corcince 2' x 18". Steel sash on 3 seawards sides, about 5' below cornice. Depth of sash 4' 2".
Lantern and Fixtures
Order of Lantern: 4th order, standard.
Shape of Lantern: Cylindrical
Diameter to Glass: 8' 4"
Diameter in the Clear:
Number of Sides:
Type of Bars: Helical
Thickness of Bars: 3/4"
Height Glazed: 3' 1/25"
Number of Plates in Height: 1 full diamon & 2 halfs.
Number of Plates Each Side:
Thickness of Plates: 1/4"
Size of Plates: 2' 1.08" x 2' 1.08"
Number of Storm Panes:
Unglazed Side of Lantern: None.
What Bearings:
Construction Material Lantern: Iron bronze & glass.
Construction Material Roof / Cowl: Cast iron.
Ventilator / Cowl: Cast iron.
Lightning Spindle: 18" platinum tip.
Description of Lightning Rod:
Balustrade: Galv. pipe railing. Gallery reinforced concrete.
Lantern Doors: Iron; bronze hinges, lock, etc.
Floor of Lantern: Reinforced concrete.
Watchroom Doors: None.
Parapet Diameter:
Location / Number: Lower part of lantern.
Ladders / Cleaning Arrangement: None-accessible without ladders.
Curtain Hooks / Hanger: Screwed on steel tower.

How is Watchroom Fitted: None. Large fog signal room with approach to lantern & landing.
How is Relief Called: None.
Where is Call System Led:
Illuminating Apparatus
Kind of Apparatus:
Intensity in Candles: 230 cp
Name of Maker: A.G.A. Co., Elizabeth, NJ
Year Made: Unknown
Marks and Number:
Order of Apparatus: Drum lens.
Inside Diameter: 300 mm
Light Characteristic: Group flashing white every 6 seconds. 0.3 sec. flash, 0.9 sec. eclipse, 0.3 sec. flash, 4.5 sec. eclipse.
Time of Revolution:
Flash Interval:
Duration of Flash:
Arc of Each Fixed Part:
Number of Panels: None.
Number of Flash Panels: None.
Arc of Each:
Number of Elements in Central Drum:
Number of Prisms Above Center Drum:
Number of Prisms Below Center Drum:
Does Apparatus Revolve?: False
Is There a Revolving Belt?: False
Revolving Panels:
How Flash is Produced:
Number of Vertical Elements Panel:
Fixed Lens Covered:
Pedestal: 2" pipe with disc. of 5/8" boiler plate on bottom & disc of 1/4" boiler plate at top.
Service Table:
Draft Tube Description:
Revolving Machinery:
Standby and Description:
Chariot Float or Balls:
Chariot Description:
Length of Drop Tube:
Clock Weight:
Length of Winding Time:
Drive During Rewind:
Machinery Protection:
Lens Protection:
How Color is Produced:
Red Sectors Description:
Where Color Attached:
Form of Colored Glass:
Lamp Description:
Type of Illuminant:
Number of Spare Lamps: None
Number of Spare Burners: None.
Candle Power:

Compressed Gas
Gas Container: 4-A-25
Compressed Gas Capacity: 88 cubic feet each, 352 total.
Compressed Gas Charge: 15 atmospheres
How Supply Renewed: By relieving containers.
At What Intervals:
Spare Containers: 4

Gas Light
Gas Light Kind: Acetylene
Gas Light Number of Burners: 1 only
Kind of Burner: A. G. A.
Candlepower Per Burner: 24 cp
Total Candlepower:
Consumption Gas Burner Per Hour: 3/4 cu. ft. hr.
Total Consumption Per Hour: 3/4 cu. ft.
How Gas Obtained: Disolved acetylens; delivered to station.

Occulting Light
Characteristic: Group flashing white every 6 seconds. 0.3 sec. flash, 0.9 sec. eclipse, 0.3 sec. flash, 4.5 sec. eclipse.
Time Limit: Unknown.
Eclipse Type: Valve, (gas light)
Size and Amplitude:
Axis Rotation:
Axis Relation:
Screen Revolution:
Screen Number:
Screen Time:
Screen Form:
Screen Mounting:
Screen Order:
Screen Date:
Valve Maker: A.G.A. Co.
Valve Pattern: KK130
Reliability: Yes.
Closets and Store Rooms
Tower Closet Use: None.
Oil House Description: Old shop building near fog signal used for this purpose.
Oil House Inside Dimension:
Oil House Construction Material: Wood.
Oil House Capacity: Oild stored in a cylindrical steel tank, 56" diam. x 12' long, capaacity 1500 gallons.
Other (Describe): Locker in south end of fog signal building.
Suitability: Dry & suitable.
Fog Signal General
Fog Signal Kind: Type C diaphone.
Time to Start: 5 minutes
How Long Will Pressure Last: 0
Year of Manufacture:
Characteristic: 3 sec. blast, 3 sec. silent, 3 sec. blast, 21 sec. silent.
Duplication: Engine & compressor.
Timing Device: 17th District Blast Device.
If whistle, siren, or trumpet, Pressure at Which Blown: 30 lbs.
Height Above Water: 34 feet.
Compass Direction: North, approximate.
Location: On north end of point. A narrow reef bare at low water but covered at high tide projects about 300 ft. to northward into Saginaw Channel.
Distance and Direction: All in 1 building.
Water Supply: Rain water drain to cistern beneath floor fog signal building.
Reached from Lighthouse: Same building.
Description of Fog Signal Building: Reinforced concrete fireproof building 20' x 36' x 16' high with 8' 6" x 8' 6" tower 7' 9" high from roof to lantern.
Pressure And Recording Gauge: Has American Steam Gage & Valve Co., Boston, Mass.
Internal Combustion Signal
Fog Signal Kind:
Internal Combustion Kind: Mietz Kerosene oil engine
Internal Combustion Manufacturer: Charter Gas Engine Co., Sterling, Ill.
Internal Combustion Date: 1923
Internal Combustion Size: 7" x 8"
Internal Combustion Horsepower: 8 HP
Internal Combustion Fuel: Kerosene
Internal Combustion Starter: By heating torch.
Compressor Maker: Pa. Pump & Compressor , Easton, Pa.
Compressor Seat: Chain driven, sep. beds.
Compressor Machinery:
Compressor Diameter: 7"
Compressor Stroke: 5"
Compressor RPMs: 266 rpm
Character of Air Inlet: 3"
Kind of Unloader: Air control
Diameter of Delivery Pipe: 2"

Trumpet Signal
Trumpet Length: 3 feet
Trumpet Diameter: 3" to 10"
Trumpet Material: Steel

Air Receiver
Number: 2
Diameter: 4 feet
Height: 8 feet.
Capacity Cubic Feet: 100
Pressure in Each:
Make of Reducing Valve: None.
Location: 170' South on point to 1st dwelling, 56' additional to next.
Coloring: Gray, white trimmed, red roof.
Construction Materials: Frame, full concrete basement & foundation, exterier shingled.
Number of Rooms: 5 each, bath & pantry.
Number of Dwellings: 2
Heating Plant: American Radiator Col.'s hot water heater's & Honeywell system.
Number of Keepers: 1 each.
Furnished Quarters: Both, including quarters for families.
NOT Furnished Quarters: None.
Outhouses: Engine house & boat house.
Outhouse Coloring: Gray-red roof, white trimmed.
Paths and Walks: Only temporary at present.
Area Inclosed:
Area of Garden:
Area Timber or Shrubbery:
Cultivation Area Available: 4/5 of reserve;
Area Cultivated: None.
Character of Surroundings: Soil (rich) swampy 1/2 mile back on point; timbered.
Stove, Maker: Monarch Ranges Co.
Stove, Size: 37" x 27"
Sink, Maker: Crane Co.
Sink, Size: 20" x 30"
Pump, Maker: Milwaukee Air Power Pump Co.
Pump, Size: 12B double cylinder.
Lamps: 1 table, 2 hand lamps Standard Gen. Depot stock.
How Procured: Rain water from roofs of dwellings impoiunded in 19,000 gal. concrete cistern for dwellings. Rain water from fog signal roof impounded in 1,000 gal. cistern under floor.
Quality: Fair.
Quantity: Yes.
Injury Possible: No.
Purity Precaution: Brick filter wall in cistern at dwellings. Water for engines not filtered.
Tank Capacity: 1,000 ga. for fog signal, 19,000 gal. for dwellings.
Tank Material: Concrete.
Distilling Apparatus: False
Distilling Manufacturer:
Well Description:
Well Diameter:
Well Lining:
Pump or Bucket: Pump
What Power Used: Air power
Distance from Dwelling: 170'
General Opinion: Healthful.
Diseases: None.
Local Causes:
Recommended Improvements:
Access to Lighthouse: Wharf 41' face, piling 40' on rock shelf 40' above mean low water. length of wharf from retaining wall to face is 58'. Creoscted piles & braces with concrete casing on piles from 3' to 12' in height. Derick 1 60' shear leg toward shore, 45' mast, 40' boom
Distance and Direction: Directly in front between 2 dwellings on East shore.
Miscellaneous Remarks: Boom swinging attachment comprises 1 8' Bull wheel operated from hoist engine - geared. Wharf throughly bolted with 3/4" Galv. bolts at all crossings, anchored to reinforced concrete retating wall.
Boat #1
Boat Number: 15
Type: Launch
Length: 5'
Width: 18'
When Built: 1910
Date Harbored at Station: 6/30/23
Sails: False
Suited to Work: No.
Boat #2
Boat Number: 65
Type: Skiff
Length: 4' 6"
Width: 14'
When Built: 1923
Date Harbored at Station: 1924
Sails: False
Suited to Work: Yes.

Power Boat
Engine Type: Scripps Motor- Model "A"
Horsepower: 4 - 5 HP
Engine Maker: Scripps Motor Co.,
Spare Coil:
Magnet: None.
Battery: Dry batteries.
Propeller Diameter: 14"
Propeller Pitch: 16"

Hoisting Engines
Hoisting Engine Kind: Fairbanks-Morse Co.
Engine RPMs: 350 rpm
Engine Diameter:
Engine Stroke:
Engine Boiler:
Engine Maker and Date: Fairbanks-Morse Co. 1922
Serial Number:
Cylinders and Size:
Horsepower: 10 HP
Fuel: Gas.
Hoist Starter:
Hoist Miscellaneous:

General Information:
Boats on Station: In boiat house on wharf.