A controversial proposal to use Mountain View's Cuesta Park Annex as a flood detention basin was officially dropped this week.

On Tuesday, the Santa Clara Valley Water District Board of Directors approved a final environmental impact report for the $40 million Permanente Creek flood protection project that does not include a basin at the park annex, spokesman Marty Grimes told The Daily News.

An 8- to 12-foot-deep basin was previously proposed as one of several flood-control elements.

The proposal attracted immediate and widespread opposition. Some users said it would obliterate views of the Santa Cruz Mountains for which Mountain View was ultimately named.

Water district staff recommended that the basin be removed largely because of the public outcry, project manager Afshin Rouhani said in an interview last week. Without the basin, the project will also have fewer "significant and unavoidable impacts" and remain on budget.

The project will still protect 1,378 homes, 160 businesses and four schools downstream of El Camino Real from a 100-year flood in the Permanente Creek watershed. Such a flood has a 1 percent chance of happening in any given year and causing $47.9 million in damages.

The basin would have protected an additional 300 to 400 parcels in the same area and reduced the potential for flooding around El Camino Hospital, according to water district staff.

The board of directors did not close the door on additional safeguards for the hospital and directed staff to return with ideas, Grimes said.

The final environmental impact report calls for flood detention basins at Rancho San Antonio County Park and McKelvey Park, a new structure to improve "flow split" at the Permanente Creek diversion channel, floodwalls and levees between Highway 101 and Ampitheatre Parkway, and the replacement of certain concrete portions of Permanente Creek and Hale Creek.

Funding for the project will come from the water district's 15-year Clean, Safe Creeks program.

Email Jason Green at jgreen@dailynewsgroup.com; follow him at twitter.com/jgreendailynews.