Project Details
About This Project
The Lee Gulch at Carbone Park Improvements Project is a collaborative effort led by the Mile High Flood District (MHFD) in partnership with the City of Littleton and the South Suburban Parks and Recreation District (SSPRD). Naranjo Civil Constructors serves as the prime contractor, with Olsson as the design engineer, Stream as the landscape architect, ERO Resources providing environmental and permitting support, and Western States Reclamation overseeing revegetation efforts throughout the corridor. This project focuses on stabilizing the Lee Gulch channel and constructing two new pedestrian crossings. These improvements will address active bank erosion, enhance stormwater performance, and support long-term resilience in the Carbone Park area. According to the pre-construction meeting minutes, the project includes channel stabilization, pedestrian access upgrades, vegetation restoration, and coordination around bridge repairs, tree removal, log riffle salvage, and box-culvert modifications. Beyond its technical goals, the Lee Gulch project provides meaningful community benefits. It strengthens aging drainage infrastructure, expands safe trail connectivity, improves park user access, and restores habitat with native plantings. Through close coordination among MHFD, Littleton, SSPRD, and the project design and construction team, the work will be executed with a focus on safety, environmental responsibility, and minimal disruption to surrounding residents and park users.
Project Details
Upgrading channel stability and erosion control within the Lee Gulch corridor
Enhancing drainage and hydraulic function in Carbone Park
Improving public access through two new pedestrian crossings
Restoring vegetation and habitat with native plant species
Coordinating with park infrastructure, bridge structures, and open-space features
Major Work Items
Improved trail connectivity, public access, and integration with adjacent park amenities
Environmental permitting and compliance, including CDPHE Dewatering, 401, Corps 404, and City of Littleton grading and floodplain requirements
Bridge and culvert coordination including decking materials and modified box-culvert details
Erosion and drainage improvements to reduce long-term maintenance needs
PROJECT SHOWCASE VIDEO
Weekly Project Progress Video.
PROJECT SHOWCASE VIDEO
Weekly Project Progress Video.
CAD OVERLAY
Engineer’s project designs overlaid onto current site conditions.
CAD OVERLAY
Engineer’s project designs overlaid onto current site conditions.
View CAD Overlay
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PROGRESS BEFORE / AFTER
Visualize the differences that have taken place on site.
PROGRESS BEFORE / AFTER
Visualize the differences that have taken place on site.
MEDIA LIBRARY
JANUARY 6th, 2026
MEDIA LIBRARY
JANUARY 6th, 2026






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