Ryer Island, north of Highway 12 and Rio Vista, has over 11,000 acres of prime farm land, has two waterfront marinas and an RV/MH park, a small store, a farmers fruit stand, and has several local Delta businesses, many different farms or ranch owners, and 28 residential home parcels along Snug Harbor Drive, connected to East Ryer Road. By land you get to Ryer Island by crossing the Miner’s Slough bridge which is part of State Route 84. You can also drive onto the ferry two miles north of Rio Vista, or use the J-Mac ferry that crosses Steamboat Slough between Grand Island and Ryer Island on State Route 220. Ryer Island has good Project Levees and has not flooded in more than 100 years.
The other Ryer Island is about 25 miles west of Rio Vista, in the Suisun Bay, and prior to the BDCP process was not considered part of the Legal Delta Region boundaries. The other Ryer Island is located above a major natural gas reserve, and has be the focus of a “restoration” effort under the plans related to the San Francisco or BCDC. URS is the company that is listed as the designer of the restoration of the other Ryer Island. The only way to get to that partially flooded island is by boat. There are no recreations businesses or residential communities. There are no bridges or ferries to that Island.
All this is important to us at the populated Ryer Island because starting in 2005 Google Maps and online media started directing travelers to the uninhabited Suisun-Ryer. Water emergency rescue services trying to respond to calls from the Delta Ryer Island would instead be directed to the Suisun-Ryer. Later, when the Suisun-Ryer was flooded as part of restoration activities of the BCDC, maps began to emerge showing the wrong Ryer Island as flooded, which greatly confused the customers trying to reach their waterfront RV sites and cottages on Delta-Ryer, at Snug Harbor.
The other important issue is that the CALFED data people didn’t realize that when they combined historical date and merged Suisun Bay islands into Delta island history, that they may have combined the data of the two Ryer Islands. The flood history, soil type, levee history, uses, access, water quality, ecological environment and human use are very different between the two islands. The combining of the data into the computer data based for the technical reports for the DRMS Phase 1 reports may be when DWR ended up falsifying the historical information for Delta-Ryer. DRMS Phase 1 falsified Ryer Island flood history, seismic risk, soil type, subsidence rates, levee conditions, elevations and uses. Despite repeated promises by DWR representatives like Paul Marshall, DSC and DWR that the false data would be corrected and other computer modelers would use correct data, the incorrect data continues to be propagated even as of November 2019.
Over 1000 wrong maps of the Delta have been generated by DWR, with Google and ESRI often noted as the base map. You can see a collection of the wrong maps of the Delta at SaveTheDelta.org Below are just a few of them related to using wrong island names or wrong waterways names. US Census map, CalTrans map, SF area map, Google maps, US navigation maps, SFEI, DWR, USBR, US Farm Bureau and others mislabeled Delta waterways and islands. Below I also show some of the wrong data about Ryer Island, and the communications with DWR representatives confirming the wrong data use.