Park Improvements on Ballot : Taxes: Valley park, recreation and cultural projects are among those that would be funded if voters approve an $817-million bond issue.

A host of San Gabriel Valley projects would be funded by an $817-million bond measure placed on the November ballot Tuesday by the Los Angeles County Board of Supervisors.

The measure, the largest bond act in the county’s history, gives voters the chance to decide whether to increase property taxes to improve local park, recreation and cultural facilities.

The board voted 3 to 1 Tuesday to place the the omnibus bond act before voters. It would pay for projects ranging from a restoration of trout and steelhead habitats to a $35-million refurbishing of the Hollywood Bowl.

If approved by two-thirds of the voters, the measure would also distribute $140 million to the county’s 86 cities and to unincorporated areas to spend as they see fit. Each community’s portion of this money would be based on its population. For example, the city of Los Angeles, with a population of 3.4 million, would get nearly $52 million; tiny Hidden Hills, with just 1,981 residents, would draw $32,703.

Additionally, the proposal includes $81.5 million for acquisition of land and trails in the Santa Monica Mountains. It also would provide $50 million to upgrade facilities at county beaches. This work is to include improvements to public restrooms and lifeguard towers.

Much of the rest of the money has already been designated for specific projects, including many in the San Gabriel Valley. The following is a list of those projects:

* $15 million to the city of San Gabriel for the acquisition and development of a mountain camp or camps for troubled youths and to improve other regional facilities for youths. The site for the mountain camp has yet to be determined.

* $10 million for the rehabilitation and restoration of the Los Angeles County Arboretum in Arcadia and four other botanic gardens around the county.

* $5 million to acquire and preserve natural lands in the Claremont foothills.

* $5 million for the development of Devil’s Gate recreation area in Pasadena.

* $5 million for acquisition and preservation of natural lands in the foothills of the city of Sierra Madre.

* $3.5 million for improvement of the Santa Fe Dam Regional Park in Irwindale.

* $3.3 million for the development of a regional sports complex in Covina.

* $2.5 million for the construction of sports fields and athletic facilities at Schabarum Regional Park in Rowland Heights.

* $2 million for acquisition and development of equestrian stables at Eaton Canyon Nature Center in Altadena.

* $2 million for improvements at Lower Arroyo Seco Park in Pasadena.

* $2 million for improvements at Brookside Park in Pasadena.

* $1.85 million for the development of Canyon Park and a nature-interpretive center in Monrovia.

* $1.1 million for the reconstruction and improvement of the Granada Park swim complex in Alhambra.

* $1 million to improve the Galster Wilderness Park in West Covina.

* $950,000 for improvements at Horsethief Canyon Park in San Dimas.

* $750,000 for improvements at South Hills Park and Big Dalton Wilderness Park in Glendora.