Castle Rock Council Adjusts Speed Limits, Approves Bella Mesa South Townhomes

Crystal Valley Parkway will carry traffic at two different speed limits: 35 mph near Old Lanterns Parkway, where limited sight lines and pedestrian crossings concentrate risk, and 40 mph along the remainder of the corridor where engineering data and sightlines support faster travel. Castle Rock Town Council approved the split on March 24 by a 5-2 vote, with council members Cavey and Davis dissenting.

The decision followed a staff study of speed conditions along Crystal Valley Parkway, a significant east-west arterial connecting Castle Rock's growing southern neighborhoods to the Crystal Valley Interchange at I-25. Staff framed the two-tiered limit as a balance between pedestrian and school-route safety and realistic travel expectations for residents and commuters who use the road daily. Council members Gray, Bracken, Brooks, Dietz and Hollingshead voted in favor.

The 35 mph zone near Old Lanterns Parkway was retained specifically because pedestrian crossings and local traffic movements are concentrated there. Beyond that segment, 40 mph reflects what engineering surveys determined roadway conditions can safely accommodate. Future investments will reinforce both limits: a planned roundabout at West Loop Road and a future traffic signal at Old Lanterns Parkway will add structural calm to the corridor, along with updated signage tied to the new designations.

The speed limit question did not arrive in isolation. At the same meeting, council also approved the site development plan for Bella Mesa South, a townhome project in the same southern growth zone. Adding residential density to a corridor already under engineering review puts direct pressure on parking, school routes and emergency access in surrounding single-family neighborhoods. Council and staff reviewed design, access and landscape buffering measures before granting approval, with neighbor concerns about density and parking part of the deliberations.

To finance what comes next, council amended the Town's Five-Year Transportation Capital Improvement Program at the same meeting, aligning funding and project sequencing for Crystal Valley Parkway improvements and the broader pipeline of work tied to the town's expansion. The full meeting video, including public comment on both items, is available through the town's meeting portal.