This is a record of the various ditches, which are located in and around Bridgeport. These ditches were dug to allow water to flow downhill causing pressure to build up, mostly to aid with the hydraulic mining operations. Some ditches are documented while other are lost to history, the early miners being rather careless in their documentation, preferring to establish their rights with a weapon. There is a white board fence that runs from the Visitors center towards Pleasant Valley Road and ends at a large fig tree. Turn your back to the fence, take a few steps to the right, look across Pleasant Valley Road and observe a ditch running up the embankment that terminates at a small concrete footing.
Closer examination reveals a funnel-shaped corrugated iron sheet on the right of the footing.
At the time 2 a flume carried water from this footing over the farm, probably for mining purposes. Later, sometime around the turn of the century, it was routed beneath Pleasant Valley Road and used for irrigation purposes. It terminated in a small stone trap located at the foot of a large mulberry tree in the fields adjacent to the visitors center. Looking out across the field from the visitor's center, close examination reveals the dim outline of a shallow ditch running across the field that was used for irrigation. The dam at Arrastre Bend was originally built by Charles J. Cole together with C. Booth and Andrew Johnson on January 10, 1856.