Here is the site I use for currents in the Delta:
https://deltaboating.com/tides/tidesj.html
On July 31 I spent the night at Tower Park after sailing up the Potato Slough to Little Potato Slough, ending at the Bridge there, called Little Potato Slough Bridge.
Two requirements: Four hours notice is required to open the bridge. Call the Rio Vista Bridge operator @ 707.374.2134 and persuade the operator that there really is a bridge at Terminous. It is located in Lodi (San Joaquin County) and the locals all refer to it as the Tower Bridge, at which point you'll be transferred to the Tower Bridge operator, located in downtown Sacramento (Sacramento County). That is NOT, however, the bridge at Tower Park.
Just part of the fun, right? Well, because I was tired and couldn't reach Greg until later, that was the reason I was willing to pay the $35/night outside the Waterfront Grill. Seemed a steep price to pay for an empty marina, but everyone was nice. Especially Aaron.
Apparently the bridge is opened very seldom. How do I know this? Because Aaron told me he has never seen it open. Well, indeed. I was the only sailboat on the water.
Aaron and I met at 5:30 am on August 1. Aaron is night watchman at Tower Park Marina and campgrounds. He went to call his girlfriend and her little girl to come watch.
Late in the evening of July 31, after several phone calls and transfers, I had finally reached Greg, Bridge supervisor of District 10, by phone, who scheduled a bridge opening for 7 am. He was very nice. Said he would make the arrangements.
Did the bridge over highway 12 open? Well, yes. There were at least five DOT trucks on hand and more men than that. They all stood there watching, coffee cups in hand, and waved as I passed under the bridge. The whole closing/opening/closing took no more than twelve minutes, then I was in the South Mokelumne River.
If you turn to starboard there is a really nice anchorage. Just you, the fishermen and the cranes. Really nice.
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