hetch hetchy reservoir

Aug-87
1875-1900

This map is basically the same as 2075 and shows the proposed pipeline from the reservoir near LaGrange to Oakland. This map shows the proposed line in yellow and then an inset is included with a...

1914

White paper map of Tuolumne County set in a brown leatherette folder, with blue printing: "Map of Tuolumne County Cal. Copyright 1914 by Punnett Brothers, Drawn & Published by Punnett Brothers...

31-Jan

Map, "Hetch Hetcy Water Supply of the City and County of San Francisco, Plans for San Joaquin Pipeline, M. M. O'Shaughnessy, City Engineer, January 1931" showing the water pipeline route from...

1952-1954

Map, "San Francisco Public Utilities Commission, San Francisco Water and Power Systems, General Map, 1952" Showing in red lines the disposal of Hetch Hetchy power and in green lines the area...

29-Oct-34

Caption on back of photo: "Valve house at Ivington Gate Portal. Machine parked beside building is oufit for chlorinating the water. This machine is mounted uupon a truck chasis and is a...

29-Aug-32

From back of photo: Hetch Hetchy tunnel cave-in. Aug 29, 1932

At left is a man in denim shirt, overalls and soft cap with bill. There is a bright "spot light" over his ear. He is...

29-Aug-32

From back of photo: Hetch Hetchy tunnel cave-in.

At the top of what appears to be a tall shaft are five men looking into the opening. The structure is made of wood and metal vertical...

29-Aug-32

From back of photo: "Hetch Hetchy cave-in. Aug 29, 1932

Construction yard. At the left side is a tall open structure made of wood. It has four vertical support beams and appears to...

19-Jul-30

From back of photo: "Rescue squad at Mitchell ravine shaft" Jul 19, 1930

Candid (before formal?) photo of rescue squad. Nine men, five squatting and four standing behind them. Eight...

July 17, 1930?

From back of photo: Cabins at Camp Mitchell, hetchy tunnel blast, July 17 -30

Photo is taken from hill looking down into Camp Mitchell, a community of approximately 20 strcutrues built...

8/29/32

From back of photo: rescue crew descending the Mocho shaft of the Hetch hetchy cave-in. 8/29/32

Twleve men, nine with backs to camera standing in front of large metal and wood...

29-Aug-32

From back of photo: Hetch Hetchy tunnel cave-in. Aug 29, 1932

The photo could be that of an elevator-type apparatus. It is a vertical structure made of wood and metal with large...

11-Sep-33

From front of photo: A 3835 -- 9-11-33 Moccasin Power House, exterior.

At the bottom is a landscaed area in an L shape. There are low ornamental flowers, six plus taller schrubs and...

5-May-34

From bottom of photo: "A-4091 5-5-34. Priest Dam - upstream slope from W. end" From back: Aug 22 1934

28-Oct-34

Fourteen large diameter round light colored pipe lengths with six round rivet(?) patterns each connected by round "nuts". The pipeline section is photographed from one up to the other and goes...

5-Jan-34

From front of photo: "A-3917. Mayor Rossi, Mr. Byington & mine at holing thru bet. Mitchell & Mocho 1-5-34"

From back of photo: Longest tunnel in the world all in ala Co. May...

5-Jan-34

Taken from top of hill looking down into construction yard/supply area that is situated in a small valley. There are trees around the site and a hilly area behind the area with more trees. The...

5-Feb-30

From front of photo: "A 2430. H.H. Ag. Mocho West, Sta. 919+ - Spading gouge Material - Feb. 5, 1930"

Eight men standing in cylindrical tunnel wearing work clothes (heavy fabric). One...

26-Oct-34

Front of photo: "3913 H.H. Ag. Mitchell Shat "Tunnel Crew" 1-4-34"

Group photo of approximately 45 men in work clothes and wearing hard hats. Most hard hats have lights on them. Forty...

4-Feb-30

From front of photo: "A-2406 - H.H. Ag. Mitchell Crosscut looking south Feb 4, 1930

Very, very large rounded tunnel at least 18' high. Tunnel is supported by rectangular shaped areas...

19-Jul-30

Bacl of photo: June 19, 1930 Mitchell Shaft.

Captionf from back of photo: "'Holing through' of the last few feet of the Coast Range tunnels of the Hetch Hetchy water system today...

18-Jul-30

Article with two photos on back of photo: Jul 18, 1930 "WHERE GAS HORROR BROUGHT TRAGEDY See Add Info below for full text.

Photo of consruction yard and hill behind. A 5 x 2 1/2"...

29-Aug-32

Back of photo notes: Hetch Hetchy tunnel cave-in Aug 29, 1932

Rescruers? Approximately 18 men standing beneath wooden structure -- large support beams.poles next to elevator? There are...

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