Built in 1891. Listed on the National Register of Historic Places in 2000. 10 historic topographic surveys show this location, the earliest from 1916.
From the record
“The Sonoma Developmental Center (SDC) was a large state school in California, United States for people with developmental disabilities, and is located in Eldridge in Sonoma County. Former names for this hospital include California Home for the Care and Training of Feeble Minded Children (1883); Sonoma State Home (1909); Sonoma State Hospital (1953); and Sonoma Developmental Center starting in 1986.”
Wikipedia article Sonoma Developmental Center, CC BY-SA 4.0.
One of 73 National Register listings published here for Sonoma County · listed in 2000 · category: Building · built in 1891.
National Register reference number.00001180- the number the National Park Service assigned this property when it was listed, and the key its nomination file is catalogued under at the National Archives.
Then and now
1916 to 1983
The ground this property stands on, surveyed
67 years apart. Drag the handle to wipe between them. Both sheets are
United States Geological Survey originals; neither has been altered.
19161983
Fires near this property
338 since 1992
Regional context, not property-specific
evidence. The
federal wildfire occurrence database
lists 338 fires within 5 miles of Sonoma State Home-Main Building
between 1992 and 2020, burning about 56,966 acres in total. 3 started naturally. 12 were recorded as arson.
Distance is straight-line from the map coordinates, so a fire counted
here may appear on a neighbouring settlement's page as well.
Reported cause
Fires
Missing data/not specified/undetermined
131
Equipment and vehicle use
125
Debris and open burning
25
Misuse of fire by a minor
15
Power generation/transmission/distribution
14
Arson/incendiarism
12
Smoking
10
Natural
3
Recreation and ceremony
3
The most recent of
them, most recent first, with the day each was reported and the service
that recorded it.
Regional context, not property-specific
evidence. The federal mineral resources record lists
42 workings within 5 miles of Sonoma State Home-Main Building: 18 past producers, 14 producers, 4 prospects, 3 occurrences.
14 still produce. What was taken out: Stone, Sand and Gravel, Construction, Diatomite, Clay. Distance is straight-line from the
map coordinates, so a quarry counted here may appear on a neighbouring
settlement's page as well.
Regional context, not property-specific
evidence. The National Weather Service names
Eldridge, the town this property stands in, in 1 storm report in 2019: 1 flood.
No death or injury is recorded in these reports. Each account below is quoted exactly as the forecast office
filed it, from the NOAA Storm Events Database, and each date
opens the federal record of that event.
United States Geological Survey topographic
sheets whose coverage includes this point. Matched by taking the coordinate the National Park Service records for this property, then
testing that coordinate against the published boundary of every sheet.
Other National Register properties close
enough to walk or drive between, ordered by distance from this one. Both
positions come from the same geocoding pass that matched these properties
to their map sheets.
Listing record. National Park Service National Register of Historic Places, listed-properties dataset, current to 2026-05-22.
Map join. Address geocoded through the United States Census geocoder, then tested against the published boundary of every sheet in the USGS Historical Topographic Map Collection.
How this page is made. Listing fields come from federal records; map-sheet coverage is a labelled coordinate-to-boundary calculation, not a source-field claim.
Wildfire. Short, Karen C. 2022. Spatial wildfire occurrence data for the United States, 1992-2020 [FPA_FOD_20221014]. 6th Edition. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2013-0009.6 Collected with United States Government funding and usable without additional permissions or fees.
Mines and quarries. USGS Mineral Resources Data System (MRDS) https://mrdata.usgs.gov/mrds/ A work of the United States government, no copyright under 17 U.S.C. 105.
Storms. NOAA National Centers for Environmental Information, Storm Events Database https://www.ncei.noaa.gov/stormevents/ A work of the United States government, no copyright under 17 U.S.C. 105. Narratives are quoted verbatim from the National Weather Service report and are not edited or summarised.
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