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Basin-wide/General |
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Tour: Gualala TMDL Pictures #2 |
Click on image to enlarge (52K). Click here to display a larger version (582K).This picture shows a landslide associated with an old road in an inner gorge location, which appears to have contributed sediment to a watercourse. Picture provided by Brian McFadin, North Coast Regional Water Quality Control Board.
Click on image to enlarge (88K). Click here to display a larger version (1,509K).This debris torrent was associated with a log landing. Picture provided by Brian McFadin, North Coast Regional Water Quality Control Board.
Click on image to enlarge (117K).The culvert opening just to the right of center in the photo is almost plugged with debris. Plugged culverts initiate road failures, which can be major contributors of sediment during large flood events. Old abandoned culverts associated with past logging have a life of about twenty-five years and are likely to rot and collapse after that period. Picture provided by Brian McFadin, North Coast Regional Water Quality Control Board.
Click on image to enlarge (143K). Click here to display a larger version (807K).This aerial photograph of the Gualala watershed shows a dense network of roads, skid roads and skid trails from which sediment can be contributed to streams as surface erosion. Picture provided by Brian McFadin, North Coast Regional Water Quality Control Board.
Click on image to enlarge (106K).In stream photo of Franchini Creek showing large cobbles and boulders and a substantial amount of fine sediment covering the stream bed. Fine sediment is highly mobile, which indicates that the fine sediment deposited here was fairly recent. Photo by Brian McFadin, North Coast Regional Water Quality Control Board.
Click on image to enlarge (99K).This photo of the channel of Francini Creek shows a major plug of fine sediment of recent origin in transport. This quantity of sediment will reduce pool frequency and volume. Photo by Brian McFadin, North Coast Regional Water Quality Control Board.
Click on image to enlarge (138K).This photo shows stable fill on the shoulder of a road or landing with a log sticking out of it. Fill with organic material can settle or even fail as wood rots out. Photo by Brian McFadin, North Coast Regional Water Quality Control Board.
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Click on image to enlarge (52K). Click here to display a larger version (582K).
Click on image to enlarge (88K). Click here to display a larger version (1,509K).
Click on image to enlarge (117K).
Click on image to enlarge (143K). Click here to display a larger version (807K).
Click on image to enlarge (106K).
Click on image to enlarge (99K).
Click on image to enlarge (138K).
