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.

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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.

PreCon
01/06/2026

MEDIA LIBRARY

JANUARY 6th, 2026

MEDIA LIBRARY

JANUARY 6th, 2026