Nearby: flood notes for Castle Rock and surrounding places
Floodwater behaves differently on a creekside downtown block than on a ridge-top subdivision or a rural lot on a gravel road. These pages look at what is distinct about each place for flooding: terrain, drainage, building age and type, utilities, and which local government to contact about permits or drainage concerns.
- Downtown Castle Rock and the East Plum Creek corridor
Downtown is the oldest part of Castle Rock and sits close to East Plum Creek. Older storefronts, mixed-use buildings and nearby homes face flood questions that hillside subdivisions do not.
- The Meadows: flooding in a master-planned community
The Meadows is a large master-planned community west of Interstate 25. Its drainage was engineered as a system, which works well most of the time and puts a premium on keeping every piece of it maintained.
- Crystal Valley Ranch: hillside runoff and walkout lots
Crystal Valley Ranch climbs hills in southern Castle Rock, with many homes built on slopes to capture views. That terrain moves storm water fast, and walkout lower levels sit right in its path.
- Castle Pines: ridges, ravines and jurisdiction
Castle Pines lies between Castle Rock and Lone Tree along Interstate 25. Its mix of a younger city, gated custom-home areas and wooded ravines means flood questions often start with who is responsible.
- Larkspur and Perry Park: creeks, canyons and rural roads
South of Castle Rock, Larkspur sits along the Interstate 25 corridor while Perry Park spreads west toward the foothills. Both feel rural, and both depend on creeks, culverts and gravel roads that change how floods play out.
- Franktown and the Cherry Creek corridor
Franktown is an unincorporated community east of Castle Rock where Cherry Creek runs north toward Parker and Denver. Acreage lots, outbuildings and private utilities make post-flood work broader than a basement cleanup.
- Sedalia and lower Plum Creek
Sedalia is a small unincorporated community northwest of Castle Rock, near where East and West Plum Creek come together on the way to the South Platte. Its low ground collects water draining from a large area to the south.