2023 Project Archive

The City and County of Denver performed bridge and roadway rehabilitation work on the elevated portion of 20th Street over the South Platte River between I-25 and Little Raven Street. This critical improvement project incorporated bridge repairs such as a new concrete overlay, expanded joint replacements, deck repairs and a new painted railing and is funded by the city's capital improvement program.

The project was completed in July 2023.

Read more about 20th Street Bridge and Roadway Improvements

A sanitary pipe on Speer Boulevard had exceeded it’s lifespan and was no longer able to adequately convey flows. To replace it we dug 10-12 feet down and replaced with 8” PVC pipe. Excavation took longer than usual due to the presence of groundwater. Very short interruptions to service for businesses and homes along Speer between Bryant and 29th Ave were experienced, 48 hour notice was given.

The duration for this project was approximately 4 months, beginning Q4 2022/Q1 2023. This project is in council district 1 (Sandoval).

Read more about 29th Ave and Speer Blvd Intersection Improvements

As part of the Elevate Denver Bond Program, which voters approved in 2017 to help make our streets safer and more efficient for everyone, Denver's Department of Transportation & Infrastructure, or DOTI, made several improvements along East 56th Avenue from Peoria Street to Pena Boulevard to help move more people, safely, whether they’re in a car, on a bike, on foot or taking transit. The project incorporated the following enhancements along this highly-traveled stretch of 56th Avenue:

• Widened the roadway from one to two travel lanes in each direction to ease vehicle congestion
• Added a new concrete median to separate eastbound and westbound vehicle traffic and to carve out a safe place pedestrians can stop in the middle of the street, if needed, before continuing to cross
• Installed new traffic signals and pedestrian crossings
• Built a new multi-use path along the north side of 56th Avenue for pedestrians and people on bikes, which will provide better connections to neighborhood bike lanes and to the trail system at the Rocky Mountain Arsenal National Wildlife Refuge

56th Avenue serves as a major east-west regional thoroughfare and a major connection to Denver International Airport (DEN) and the Montbello and Parkfield neighborhoods.

The project was completed in November 2023.

Read more about the 56th Avenue Travel and Safety Improvements project

The Baker neighborhood was selected as the second neighborhood to go through the NTMP Action Plan collaboration process. Less than two (2) miles away from downtown Denver, the Baker neighborhood spans the area east of the South Platte River to Broadway, and north to south from W. 6th Avenue to E. Mississippi Avenue. Baker ranked second in the NTMP prioritization model which incorporated the following factors: growth pressure, safety, transportation equity, and multimodal.

The Baker Action Plan identified and delivered 5-15 specific, near-term transportation and mobility enhancement projects, while highlighting the longer term actions. The process to develop the Action Plan took approximately five (5) months, beginning in December 2018.

Read more about the Baker NTMP Action Plan

The City and County of Denver has transformed a stretch of Bannock Street from 14th Avenue to Colfax Avenue into a versatile public gathering space that people on foot and on bikes can enjoy year-round and experience as a new gateway to Civic Center Park.

Bannock Street, which borders Denver’s iconic Civic Center Park had primarily served to move vehicle traffic for many years.  Now, we've brought Bannock Street itself into prominence, as a space to be enjoyed and celebrated, and serve as the front porch of Denver City Hall.

The Bannock Street Project is located between 14th Ave and Colfax Avenue.

Bannock Street closed to vehicle traffic on April 21, 2020. It reopened as a public gathering space following installation of a colorful street mural.

Read more about the Transforming Bannock project

Olsson was retained by Mile High Flood District (MHFD) and the City and County of Denver to provide design of storm drain system improvements in the Marston Lake North Drainageway. The main objectives of the project are to separate stormwater flows from the Bowles Lateral, improve drainage and alleviate high ground water near the properties adjacent to the Bowles Lateral at Saratoga Place, and improve the overall drainage and reduce street flow through the project area.

The general design concept is to install new storm drain infrastructure to collect and convey 100-year flows from West Wagon Trail and South Field Way to the existing storm drain system downstream of the Glenbrook Pond. Storm flows will be separated from the Bowles Lateral with the improvements. The project will be completed in two phases.

Phase I consists of constructing improvements from the Glenbrook Pond outfall to upstream of the Bowles Lateral. Phase I includes installing 42- and 48-inch storm drain trunk line with laterals and inlets in West Garrison Street and South Garland Street, then crossing the Bowles Lateral to West Saratoga Place. As a part of the Phase I improvements, sanitary sewer and water lines will be adjusted as well as the Bowles Lateral. In South Garland Street, the sanitary sewer main will be lowered and water line will be relocated to accommodate the new storm drain. The Bowles Lateral will be piped via 60-inch pipe, upstream of the existing 72-inch culvert under West Saratoga Place. A headwall and wingwalls will be constructed at the culvert entrance. An 8-inch French drain will be installed along the new Bowles Lateral pipe in the vicinity of the ditch to collect groundwater. Curb Ramps will be replaced the intersections of South Garrison Street and South Holland Way, South Garland Street and West Garrison Street, and West Saratoga Place and where Wagon Creek Trail crosses West Saratoga Place. On West Garland Street, curb, gutter, and sidewalk will be replaced.

Phase I construction began in December 2022 and was completed on June 30, 2023. 

Phase II includes installing improvements upstream of the Bowles Lateral, and at Hoyt Street and West Saratoga Place. Phase II includes installing 36- and 42-inch storm drain trunk line with laterals and inlets along West Saratoga Place, West Wagon Trail Drive, and South Field Way. The existing storm drain system in South Field Way will be connected to the new system at the intersection of South Field Way and West Wagon Trail Drive. Construction will also include curb ramps, curb, gutter, and sidewalk replacement. Additionally, inlets, laterals, and storm drain trunk line will be installed, conveying storm flows to the existing system in Hoyt Street, ultimately conveying flows to the Glenbrook Pond.

Construction for Phase II is planned to begin in 2023, pending funding, and will last approximately 5 months.

Bowles Ditch Project Map

Contacts

CCD Construction PM
Paul Bountry
(303) 446-3719
Paul.Bountry@denvergov.org

CCD Construction Inspector
Mark Barry
(303) 446-3694
Mark.Barry@denvergov.org

Contractor
Concrete Works of Colorado

The expansion of the Colorado Convention Center includes a new 80,000 square foot column free multipurpose room and outdoor rooftop terrace with sweeping views of the city skyline and mountains.  The project includes the largest ballroom in Colorado and expanded one of the largest buildings in Denver.  On the ground floor, lobby renovations seamlessly integrate with the existing building, while offering attendees safe and easy access to an additional 150,000 square feet of meeting space, 600,000 square feet of exhibit space and a 5,000 seat Bellco Theatre.  The improvements serve the needs of modern day convention-goers and differentiate the facility from others, ensuring it remains an attractive and global competitor.

Construction was completed in late 2023, and Occupancy was achieved in February 2024. The Expansion is officially open for business and began hosting events in March 2024.

Read more about the Colorado Convention Center Expansion Project

The Denver Department of Transportation & Infrastructure (DOTI) constructed new streetscaping enhancements on Larimer Street in Downtown between 14th Street and Speer. This also included demolishing the aging bridge structure over Cherry Creek and replacing with a new bridge and wider sidewalks. This section of Larimer has been constructed as a curbless street with wider sidewalks and a two-way protected bikeway. Streetscaping improvements were also added such as pedestrian lighting, seating, and additional trees.

Read more about Connecting Auraria

The City and County of Denver installed an improved, expanded storm drain system in E. Dakota Avenue beginning at S. Kearney Street and ending at the alley east of S. Holly Street. Additionally, new storm pipes were installed in the alley north of E. Dakota Avenue between S. Holly and S. Ivy Streets and in the alley south of E. Dakota Avenue between S. Ivy and S. Jersey Streets.

This project was completed in 2023.

Read more about Crestone Peak General Storm

The Five Points neighborhood was selected as the first neighborhood to go through the NTMP Action Plan collaboration process. The neighborhood is just northeast of downtown Denver, spanning from 20th Street and 20th Avenue to the south, to the Platte River and 38th Street to the north, and Downing Street to the east. Five Points ranked highest in the NTMP prioritization model which incorporated the following factors: growth pressure, safety, transportation equity, and multimodal demand.

Read more about Five Points NTMP Action Plan

Mississippi/Parker — Status: Completed

Denver’s Department of Transportation and Infrastructure (DOTI) has created a safer, more convenient connection for people who walk and ride bikes on the High Line Canal Trail. Crews have installed an underpass beneath Parker Road to continuously connect the High Line Canal Trail and allow people walking and riding bikes to have a safer crossing at Mississippi Avenue. Previously, trail users cross at street level amid heavy vehicle traffic. This project was completed in December 2023.

High Line Canal Trail Underpass - Mississippi/Parker

Colorado/Hampden — Status: Completed

This project now provides a continuous multi-use trail bypassing the busy intersection of Hampden Avenue and Colorado Boulevard by building two underpasses beneath these two major arterials. Final designs were completed in 2019.  Construction began in May 2020 and two underpasses at Colorado and Hampden opened to the public in June 2021.

See project maps, features, and renderings

The City and County of Denver has alleviated frequent flooding at the intersection of Louisiana Avenue and South Pearl Street by making necessary surface and inlet improvements. The project included new crosswalk striping, ADA compliant curb ramps and maintained shared bicycle lanes to enhance pedestrian and cyclist safety and comfort.

The project was completed in December 2023.

Learn more about the Louisiana and South Pearl Street Storm Sewer project

Starting in Summer 2020, the City and County of Denver began the design process to improve walkability and access to McAuliffe International School. This project was awarded Colorado Department of Transportation Safe Routes to School Infrastructure Funds to implement infrastructure improvements benefiting access to schools.

As part of the Safe Routes to School Program, Elevate Go Bond Program, and Colorado Department of Transportation, this project enhanced pedestrian, cyclist, and vehicular safety for residents and students traveling to and from school within the Park Hill neighborhood. These infrastructure improvements collectively provide enhanced safety and access while also benefiting the community in many other ways, including traffic calming, safer pedestrian crossings, traffic efficiency, and multi-modal safety. 

Read more about the McAuliffe International Safe Routes To School project

In the 2019 adopted Northeast Area Plan, the Montbello community called for streets to be connected, safe, and equitable.  Between 2020 and 2023, Denver's Department of Transportation and Infrastructure designed changes to four streets in Montbello to provide greater safety and mobility options in the neighborhood.

Project Focus

• Safety: Reducing speeding and making crashes less likely
• Equity: Serving all neighborhoods
• Mobility: Providing comfortable options when not driving
• Healthy: Creating better ways to get around actively and get to local parks, recreation centers, schools, and amenities

Read more about the Montbello Safer Streets project

The City and County of Denver completed bridge and roadway rehabilitation work on the elevated portion of the Park Avenue Viaduct from the Platte River east to Wazee Street. This critical improvement project incorporated bridge repairs and traffic signal replacements at Wazee and Delgany Streets, as well as new concrete curb ramps, signage and striping. 

The project was completed in July 2023.

Read more about Park Avenue Bridge and Roadway Improvements

The City and County of Denver repaired and/or replaced the existing storm sewer and sanitary sewer systems along S. Wolcott Ct. The existing storm sewer system outfalls to Sanderson Gulch. Several sanitary service lines crossed through the existing storm sewer so the two systems needed to be separated for water quality and storm water conveyance purposes.

The project was completed in 2023.

Read more about S Wolcott at Sanderson Gulch Storm and Sanitary Sewer Improvements