Battery No. 6

90 mm M3 fixed mount

Battery Name: No. 6
Harbor: Columbia River
Location: Fort Stevens

Eponym: not named

Current status: gun blocks remain

Battery Drawing (Form 7)

Information from RCW Form 1 (date): Jan. 1, 1944
Battery commenced: June 10, 1943
Battery completed: construction completed June 30, 1943, armament installed Dec. 24, 1943
Date of transfer: Apr. 5, 1944
Material of construction: reinforced concrete 1:2:4 mixture
Cost to date of transfer: $9,856.82
Type of data transmission: telephones furnished and installed by the Signal Corps
Trunnion elevation in battery: 28.76 ft.
Datum plane: mean sea level.
Sources of electric current: one M-7 generating plant. Portable unit procured by the Ord. Dept. 125 volts AC; 3 phase; one unit 35 KVA. Comercial power not provided, no auxiliary power unit.
Max. kw. Required for utilities: none
Max. kw. Required for non-battle conditions: none

90 mm M1 mobile mount

Armament: # gun emplacements or mortars

# 1: Cal., 90 mm: Length, 186.15″: Model, M1: Serial No., 7139: Manufacturer, Gen, Motors Co.: Mounted, 12/15/43
# 1: Carriage Type, 90AA: Model, M3: Serial No., 219: Manufacturer, Gen. Motors Co.: Motor, none

# 2: Cal., 90 mm: Length, 186.15″: Model, M1: Serial No., 6927: Manufacturer, Gen, Motors Co.: Mounted, 12/15/43
# 2: Carriage Type, 90AA: Model, M3: Serial No., 128: Manufacturer, Gen. Motors Co.: Motor, none

Historical Notes and Comments: Constructed by Government Forces with funds from P/A 8-32439 P 270 A 0905-24. The facilities includes two munitions storage buildings, a height finder platform, and a tower in which the B.C. station, the tracking station, and the power unit were constructed. These were of a temporary nature & constructed of wood. Guns removed 1947 or 1948.