Sutro Baths Surveys -- Catchbasin & Sea Cave June 5, 2008

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Catch basin viewed from above. Large wall and outfall pipe at right. Blow hole & notch at left.	Inside the main channel, view west 1	"Team Sutro" inside the channel	Mary Slater inside the channel
Inside the channel, opening to catch basin	Measuring the concrete side walls of channel	Inside the channel, view west 2	Inside the channel, beneath Whitney era bridge
Measuring the recess in side wall for sluice gate 1	Measuring recess for sluice gate 2	Tom Bratton framed in opening from channel into catch basin	Overview of wave catch basin, view south
Mary and Tom examining "blow hole" pipe	Quarried notch leading to blow hole pipe	View down blow hole. Sunlight fainly visible at bottom.	Long wall inside catch basin.
Reinforcing cable inside concrete of the long wall	Outflow pipe from backup pump room	John Hall measuring the vertical mystery pipe	Door set into cliff on north side of point. John Hall had to reach around cliff one-handed to get this photo.
Outflow pipe & concrete filled cleft in rock face.	Long wall, outflow pipe, and concrete filled cleft	Outflow pipe and wall. Note hinge points for flapper cover	Channel to settling pond (left) and Maintenance tunnel (right)
Examining long wall	Overview of wave catch basin, view north	Main channel, view east towards settling pond 1	Main channel, view east towards settling pond 2
Main channel, view east towards settling pond 3.	Team Sutro portrait in the main channel	Joist sockets in channel wall	Main channel opening to catch basin at right. Overflow channel at left.
Concrete drain valve structure near overflow 1	Concrete drain valve structure 2	Collapsed side wall near overflow, view east	Team Sutro: (l to r) John Martini, Mary Slater, Tom Bratton, Tom, Christine Miller, John Hall
Team Sutro: (l to r) Leo Barker, Mary Slater, Tom Bratton, Tom, Christine Miller, John Hall	Collapsed side wall near overflow, view east	Unidentified foundation (?) adjacent to overflow	Concrete drain valve structure 3
View from inside channel towards settling pond	View from main channel east towards settling pond.	Wall with gates between main channel and settling pond.	Big Tunnel interior, view south. Opening to sea cave at right.
Preparing ladder to go down into sea cave	John Hall standing next to Sky Tram waterfall feed pipe.	Waterfall feed pipe in floor of tunnel	Waterfall feed pipe in ceiling of tunnel
Sea cave viewed from Big Tunnel, view west	North portal of big tunnel	Newly discovered cave below north portal. Tracks just out of view at bottom. (John Hall)	Sea cave opening. Part of OHIOAN shipwreck at right.
Sea cave opening. Part of OHIOAN shipwreck at center.	Concrete reinforcement in ceiling of sea cave 1	Concrete reinforcement in ceiling of sea cave 2	Concrete reinforcement in ceiling of sea cave 3
Interior of sea cave, looking east from opening	Large rock inside sea cave. Leo Barker in distance.	Concrete & brick infill at east end of sea cave 1	Concrete & brick infill at east end of sea cave 2
Concrete & brick infill at east end of sea cave 3	Concrete & brick infill detail	Tom examining metal shaft on floor of sea cave	Christine Miller inside sea cave
Rocks on floor of sea cave. Note the parking meter.	Closeup of parking meter	View inside sea cave 1	View inside sea cave 2
Unidentified metal and wood on floor of cave	Unidentified metal on floor of cave	Double-ended shaft 1	Double-ended shaft detail
After a long day, things start to look like this...

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