Report for Finns Point Jetty (New Jersey) - 1910

District: 4th
Inspector: Thos. J. Rout, Jr. Superintendent
Location: On off-shore end of jetty which extends into Delaware River, opposite New Castle Range light station & 1 5/8 miles about Fort Mott, NJ
Date of Report: 12/18/1910
Latitude: 39° 37' 34"
Longitude: 75° 34' 17"
Site: Jetty is under authority of War Dept.
Date of Reservation:
Date of Deed:
Date of Permission: 10/01/1908
Date of Lease:
Area of the Entire Site:
Area Inclosed:
Character of Soil:
Distance of tower from Nearest High-Water Mark: Tower surrounded by water
Inclosures to Premises / Type of Fence: None
Wharf or Landing on Premises: Landing can be made on jetty at light station.
Road to Land or Wharf Chararacter of and Distance: None
Means to Reach Light Station: By boat only
Distance to Nearest Road: About 1 mile to public road
Distance to Post Office: About 2.5 miles (Newcastle, Del)
Distance to Village: About 2.5 miles (Newcastle, Del)
Facilities for Public Conveyance: None
Facilities for Private Conveyance: Small boats can usually be hired at New Castle, Del., 2.5 miles distant
Means Used for Support of Lantern: Iron tower
Number of Separate Lights: One
First Built or Established: 1909
Last Rebuilt, Repaired, or Renovated:
Condition at This Date: Excellent
Shape of Tower in Plan: Rectangular
Form of Tower: Pyramidal
Height from Base to Ventilator Ball: 29' from base to center of AGA lantern
Height of Focal Plane Above Mean High Water: 30'
Background of Lighthouse as Seen from Sea: Marsh lands
Color of Tower: Brown tower, rising from small white house.
Color of Tower/ How Produced: Paint
Tower Connection: No dwelling
Object of Navigation: Channel, general navigating purposes.
Building Materials: Iron
General Description:
Wall Thickness at Base: Tower is constructed of 1/4" x 2.5" x 2.5" angle iron.
Wall Thickness at Parapet: Tower is constructed of 1/4" x 2.5" x 2.5" angle iron.
Diameter at Base: 6' x 6'
Diameter at Parapet: 26" x 26"
Kind of Stairway and Steps: Iron ladder
Number of Landings: None
Size of Glass: No windows
Number of Windows and Size of Sash:
Number of Doors: 1, entrance to tank house
Kind of Foundation and Depth Below Surface: Concrete, 8' x 8' set in stone of jetty
Character of Soil Surrounding the Lighthouse: No soil
Soil Susceptibility:
Miscellaneous Remarks: Tower rises from center of small frame storehouse in which are stored acetylene gas tanks.
Lantern and Fixtures
Order of Lantern: AGA lantern
Shape of Lantern: Cylindrical
Diameter to Glass: 200 mm
Diameter in the Clear:
Number of Sides:
Type of Bars: Helical
Thickness of Bars:
Height Glazed: 7 3/4"
Number of Plates in Height: One
Number of Plates Each Side:
Thickness of Plates: About 1/4"
Size of Plates: Std plates for 200 mm AGA lantern
Number of Storm Panes: None
Unglazed Side of Lantern: None
What Bearings:
Construction Material Lantern: Metal glass
Construction Material Roof / Cowl:
Ventilator / Cowl:
Lightning Spindle:
Description of Lightning Rod:
Lantern Doors:
Floor of Lantern:
Watchroom Doors:
Parapet Diameter:
Illuminating Apparatus
Kind of Apparatus:
Intensity in Candles:
Name of Maker: American Gasaccumulator Co.
Year Made: Not known
Marks and Number: On lantern: American Gasaccumulator Co., Phila Pa. Patent Apr 5, 1910 L200a #1015; On Sun valve: AB Gasaccumulator Co., Stockholm, Sweden No. 304
Order of Apparatus: Standard 200 mm lantern
Inside Diameter: About 7 3/4"
Light Characteristic: Fixed red .3 sec, eclipse 2.7 sec.
Time of Revolution:
Flash Interval: 2.7 sec.
Duration of Flash: .3 sec
Arc of Each Fixed Part: 360 degrees
Number of Panels: AGA lantern
Number of Flash Panels: None
Arc of Each:
Number of Elements in Central Drum: 1
Number of Prisms Above Center Drum: AGA lantern
Number of Prisms Below Center Drum: AGA lantern
Does Apparatus Revolve?: False
Is There a Revolving Belt?: False
Revolving Panels:
How Flash is Produced: Eclipses are produced by an automatic device operated by the flow of gas - consumed by light.
Number of Vertical Elements Panel:
Fixed Lens Covered:
Pedestal: None
Service Table: None
Draft Tube Description: None
Revolving Machinery: Not revolving
Standby and Description:
Chariot Float or Balls:
Chariot Description:
Length of Drop Tube:
Clock Weight:
Length of Winding Time:
Drive During Rewind:
Machinery Protection: No machinery
Lens Protection:
How Color is Produced: By use of ruby chimney
Red Sectors Description: No red sector
Where Color Attached:
Form of Colored Glass:
Lamp Description: Single 1/2 cu ft. AGA burner
Type of Illuminant:
Number of Spare Lamps: None
Number of Spare Burners: None
Candle Power:

Compressed Gas
Gas Container: 4 tanks 12" x 36" each 200 cft. capacity
Compressed Gas Capacity: 800 c ft
Compressed Gas Charge: About 140 lbs
How Supply Renewed: Sending empty tanks to factory for refilling
At What Intervals: About 24 mos
Spare Containers:

Gas Generator
Generator Description: Not generated at station
Generator Manufacturer:
Generator Date:
Maximum Capacity Per Hour:

Gas Light
Gas Light Kind: Acetylene, high pressure
Gas Light Number of Burners: 1 burner
Kind of Burner: Gas 1/2 cu ft.
Candlepower Per Burner: 166
Total Candlepower: 166
Consumption Gas Burner Per Hour: 1/20 cu. ft.
Total Consumption Per Hour: 1/20 cu. ft.
How Gas Obtained: From tanks in tank house

Occulting Light
Characteristic: Fixed red .3 sec, eclipse 2.7 sec.
Time Limit: Any desired characteristic can be obtained
Eclipse Type: Valve
Size and Amplitude:
Axis Rotation:
Axis Relation:
Screen Revolution:
Screen Number:
Screen Time:
Screen Form:
Screen Mounting:
Screen Order:
Screen Date:
Valve Maker: American Gasaccumulator Company
Valve Pattern: Standard valve
Reliability: Yes
Access to Lighthouse: Landing from small boat can be made on jetty near light. No wharf, boathouse or road.
Distance and Direction:
Miscellaneous Remarks: Light is high pressure acetylene system, the only 1 in this district at this date.