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Box 1

 Container

Contains 37 Results:

Napa River near Napa, at Oak Knoll Ave. bridge looking upstream during a light rain, December 9, 1983

 File — Box: 1, Folder: 29
Scope and Contents

No point bars were evident (under water?). Under the bridge a deposit of sandy bedload was seen, and the banks here were composed of sands and conglomerate. Vegetation was heavy along banks but mostly remained out of the water. Bankfull could not be seen. The gage station was situated nearly under the bridge. As can be seen from the cross section, the river recently changed its course possibly due to development. The abandoned portion still had a gravelly bottom and little growth.

Dates: December 9, 1983

Napa River near Napa, at Oak Knoll Ave. bridge looking downstream

 File — Box: 1, Folder: 30
Scope and Contents

In this photograph one can see the steep banks and lack of a bankfull mark. As in the upstream photograph, vegetation can be seen growing in the middle of the river on a flooded bar.

Dates: 1983

Napa River near St. Helena, at stone bridge built in 1894, off state highway, December 9, 1983

 File — Box: 1, Folder: 31
Scope and Contents

Looking upstream one can see a heavily vegetated point bar on the right bank and material dumped into the river on the left bank, here what may be bankfull can be seen about a meter above the water. Photograph taken during a light rain.

Dates: December 9, 1983

Napa River near St. Helena, at stone bridge built in 1894

 File — Box: 1, Folder: 32
Scope and Contents

Looking downstream one can see the river without any building nearby, but still material has been dumped over the left bank. Tree in foreground was growing at the base of a support for the bridge which probably contained a submerged bar. The gage station was not found.

Dates: 1983

Napa River at Calistoga, from Lincoln Street bridge during a light rain

 File — Box: 1, Folder: 33
Scope and Contents

Looking downstream one can see the much larger clast size of what may be bedload, and the smaller size of the river. This area was heavily urbanized, houses being frequent along the river's banks. The gage station was at the end of Pine street about two blocks downstream from photograph, but due to inaccessibility at that location the photograph was taken from the bridge in the center of town.

Dates: 1983

Napa River at Calistoga, from Lincoln Street bridge looking upstream

 File — Box: 1, Folder: 34
Scope and Contents

As in figure 33, no point bars could be seen due to the height of the water. Heavy vegetation and urbanization can be seen especially behind the house where erosion was occurring. Here, chicken wire enclosed gravel of about 50mm diameter in an attempt to prevent further erosion even though the river is capable of transporting clasts many times larger than 50mm. Ivy partially covered a cement wall on the other side of the river.

Dates: 1983

Redwood Creek near Napa, on the upstream side of the Hendry Ranch, about 450 meters upstream from the old gage site, November 19, 1983

 File — Box: 1, Folder: 35
Scope and Contents

Photograph looks upstream. Photograph taken during a light rain. Despite the small size of the creek, the great size of the transported material can be seen. Clast sizes ranged up to greater than 256mm in diameter. The stream is in a rural area not greatly affected by urbanization. The vegetation is fairly thick often adding to the roughness of the stream. Bankfull and a terrace can be seen as well as several abandoned channels.

Dates: November 19, 1983