South Metro Projects
Project Updates as of March 31, 2017
C-470 Express Lanes
Description: The project will add two express lanes westbound from I-25 to Colorado, one express lane between Colorado and Wadsworth westbound, and one express lane eastbound from Wadsworth to I-25, full reconstruction of a portion of the existing pavement, adding auxiliary lanes at selected locations, improving portions of on-ramps and off-ramps to current standards, realigning substandard curves, safety and operational improvements between I-25 and Quebec via adding direct-connect ramps from I-25 to the C-470 express lanes, widening of existing bridges throughout the project area, replacing the bridges over the South Platte River, installing water-quality features where required, installing noise barriers where required, installing Intelligent Transportation Systems elements and tolling equipment and, adding grade separations for the multi-use trail at Quebec and Colorado. The project includes innovative financing funded mostly by loans supported by toll revenues. The total project cost including innovative financing is $318 million with an advertised $215 million construction contract value.
Schedule: Construction began on November 1, 2016 and is projected to be complete in the spring of 2019
Southeast Rail Extension
Description: The project will add 2.3 miles of light rail from the existing Lincoln Station to RidgeGate Parkway in Lone Tree. There will be three new stations: a kiss-n-Ride at Sky Ridge Avenue, one at the future Lone Tree City Center and a 1,500 –slot Park-n-Ride at RidgeGate Parkway. The cost is estimated at $207 million with $35-$40 million committed from stakeholders in the southwest. The project is funded by RTD, FTA, the City of Lone Tree, Douglas County, Rampart Range Metro District, Denver South Transportation Management Association / Southeast Public Improvement District, and the City of Lone Tree.
Schedule: Construction is set to begin spring 2016, to be completed by early 2019.
Rampart Range Metro District – SkyRidge Avenue Extension Bridge
Owner: Rampart Range Metro District
Description: Automobile bridge with accommodations for Bicycles and pedestrians to cross I-25 to the future Lone Tree Town Center. Currently in design, the bridge will be parallel to the South East Rail Extension.
I-25 and Arapahoe Road Interchange Reconstruction Project
Description: This project is estimated at $68 million, $50.4 million for construction and $6 million for design. CDOT, in partnership with Arapahoe County, the Cities of Centennial and Greenwood Village, and the Southeast Public Improvement Metropolitan District, is designing improvements to the I-25 and Arapahoe Road interchange. This project consists of design and replacement of the existing I-25 bridge over Arapahoe Road, and other improvements to the interchange complex, to reduce congestion and improve traffic operations and safety.
Schedule: Construction is scheduled to begin May 2016, to be complete in July 2018.
RoadX – I-25 Managed Motorways Project Trial Project
Description: The project uses an algorithm to control ramp meter timing onto I-25. The trial will be for a period of six months. The project is from RidgeGate Parkway to Broadway on I-25. The algorithm monitors all the ramps on the system and releases vehicles onto I-25 based on travel speed at different locations. The meters may hold cars up to 20 seconds instead of the present timing of today’s meters. If the algorithm senses the travel time is worsening at one location, it will adjust all the meters accordingly to clear the problem. These ramp meters would be removed after the trial period. Visit www.codot.gov/programs/roadx for more information.
Schedule: Design 2016, Construction Q1 2017, Trial period, Summer/Fall 2017
Broadway/County Line Road Intersection Improvement Project
Owner: City of Littleton
Description: The project includes construction of an additional left turn lane from southbound Broadway to eastbound County Line Road. A new sidewalk and crosswalks, new traffic signal, improved drainage and a new inlet with landscaping will also improve traffic flow and aesthetics at the intersection.
Schedule: March 27, 2017 until the end of 2017.
Quebec/Lincoln/University Intersection Improvement Project
Owner: Douglas County
Description: This project involves widening northbound Quebec and eastbound Lincoln Avenue in order to improve safety and traffic operations by providing improved auxiliary lanes. The project is estimated to cost approximately $2 million.
Schedule: Construction to begin June 2016 and should be substantially completed by November 15, 2016.
Lincoln Widening Phase (First phase is between Peoria and Meridian Village Parkway)
Owner: Douglas County
Description: This project involves widening Lincoln Avenue from 4 to 6 thru lanes between Peoria Street and Jordan Road, as well as making safety and traffic operational improvements at the Lincoln and Chamber intersection.
Schedule: Construction between Peoria Street and Meridian Village Parkway for the eastbound lanes is to begin in summer 2017 and westbound lanes is to begin in summer 2018.
Peoria Street Widening Project (between E-470 and Lincoln Avenue)
Owner: Douglas County
Description: This project involves widening Peoria Street from 2 to 4 thru lanes (widens the east side) as part of development project that is located on the east side of Peoria Street.
Schedule: Final design is underway and construction is likely to begin in 2016 or 2017.
2016 Concrete Pavement Maintenance and Repairs throughout Highlands Ranch
Owner: Douglas County
Description: The project includes installing ADA ramps, concrete panel replacement, grinding and joint sealing on major arterial roadways throughout Highlands Ranch (see attached map).
Schedule: Construction is likely to begin in June 2016 and similar types of projects will also occur in 2017, 2018 and 2019.
US 85 Widening (Highlands Ranch Parkway to C-470)
Description: This project is being managed jointly by CDOT and Douglas County and requires widening US 85 from four to six thru lanes between Highlands Ranch Parkway and the C 470 eastbound off-on ramps. The project is funded by Douglas County, DRCOG / FHWA and CDOT.
Schedule: Final design is to begin late 2016, ROW acquisition and utility relocations to begin 2017, and construction to begin no sooner than winter 2018 and no later than fall 2019 and will take 24 months to complete construction.
E-470 Road Widening Project
Description: The project widens E-470 from Cherry Creek to Quincy Avenue from two lanes to three lanes in each direction.
Schedule: Construction is scheduled to begin spring 2016
West Chatfield Avenue – South Pierce Street to South Kendall Boulevard Roundabouts
Owner: Jefferson County
Description: The proposed improvements include adding curb and gutter with a storm drainage system, bike lanes and multi-use path, a roundabout at Kendall Boulevard, and landscaping. Jefferson County has planned for construction of these improvements in 2017. The project is being funded by the County’s One-half Cent Sales Tax for roadway improvements in southeast Jefferson County.
Schedule: ROW acquisitions 2016, Project advertisement Jan 2017, Construction 2017