MORPHODYNAMIC CONDITIONS AT THE SONOMA
BAYLANDS RESTORATION SITE Dingler,
Cacchione, & Hansen USGS
Menlo Park CA






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CHANNEL CROSS-SECTION
Southward view of the channel draining the Main Unit to San Pablo Bay, taken from atop Weir 2

Spanning the channel is a bridge used by the USGS to hold
the wet station instruments.
Surveyor atop center weir
during the survey of the cross-section of the adjacent tidal
channel
Nearby structure
is the part of the weir that holds the stop logs, which control the height
of the water in the impoundment.
Channel cross-section at the bridge at three times during
the restoration process

The first survey occurred after the levee
and weir were built but before filling of the impoundment began; the other
two after filling ended. Channel deepening between the second and third
surveys may be a result of allowing some water to flow into and out of the
impoundment, which increases flow in the channel over pre-filling conditions.
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