PROJECT UPDATES & TRAFFIC IMPACTS

May 2026

    05-14-2026 - Project Update

    This update includes an upcoming holiday schedule, construction progress, planned work, and ongoing traffic impacts for the next few weeks for the Santa Fe and Mineral Improvements project in Arapahoe County.

    Memorial Day Weekend: No work will be performed from Saturday, May 23 through Monday, May 25 in observance of Memorial Day.

    A new traffic pattern is in place on Mineral Avenue and a 24/7 right shoulder closure exists on southbound Santa Fe Drive within the project limits. Please refer to the Traffic Impacts section below for more details.

    We appreciate the public's continued cooperation and adherance to new lane restrictions and detours during this important phase of construction. 

    Drone views of construction progress on the new quad roadway and roundabout. Aerial photography by HDR, Inc. and SEMA.

    Construction Progress & Planned Work

    Since the last update, crews have started clearing the west side of Santa Fe Drive for widening and begun construction on the now-closed portion of the south side of Mineral Avenue that, when complete, will connect to the quad roadway extension.

    Crews have made significant progress on the quad roadway extension and roundabout in recent weeks, installing new concrete curb and gutter and preparing the road surface for asphalt paving. Other work included the removal of existing streetlights and construction of new light bases, and utility construction including installing electrical and fiber conduit.

    Over the next few weeks, crews will continue performing concrete flatwork at the roundabout and Platte River Parkway extension, and asphalt pave sections of the new roadway. Other planned work includes cutting and filling embankment areas on the west side of Santa Fe Drive; clearing and grubbing and removing old concrete and asphalt on Mineral Avenue; and installing new drainage pipe and inlet structures.

    Views of new curb and gutter for the new quad roadway extension of Platte River Parkway and the Mineral Avenue traffic shift. Photography by Estate Media.

    Traffic Impacts

    New Traffic Pattern - Mineral Avenue 

    Both directions of traffic on Mineral Avenue from just west of Santa Fe Drive (US Highway 85) to west of Platte River Parkway have been shifted to the north side of the roadway into a two-way, single lane alignment. The following impacts and restrictions are in place until further notice:

    • The traffic signals at the Platte River Parkway and Mineral Avenue intersection have been removed.
    • No Eastbound Mineral Avenue Left Turns: No left turns are permitted to and from Platte River Parkway on eastbound Mineral Avenue.
    • Eastbound Mineral Avenue Detour Routes: Signs will direct motorists to Aspen Grove and Santa Fe Drive to bypass the restrictions.
    • Right turns to and from Platte River Parkway on westbound Mineral Avenue remain in place.
    • No u-turns are permitted within the work zone.
    • Please refer to the map below for the location, impacts and detours.
    • Please drive slowly, stay alert, merge when directed, and follow all posted signs. 
    • The speed limit on Mineral Avenue is 45 mph.
    • Changing conditions exist and caution is advised.
    • Visit Cone Zone for more details.       


    Shoulder Closure - Santa Fe Drive (US 85) 

    • The right shoulder on southbound Santa Fe Drive is closed 24/7 until late June.
    • The project limits on Santa Fe Drive extend a half-mile north and south of the Mineral Avenue intersection, from Mile Point 201 to MP 202 in the City of Littleton.
    • A speed limit of 50 mph is in place on Santa Fe Drive.
    • Check the Cone Zone page or COtrip.org for details. 

    About the Project

    • The project began in late 2025 with anticipated completion by fall 2027.
    • Normal working hours are 7 a.m. to 5 p.m. Monday to Friday.
    • Some overnight work will take place from 7 p.m. to 5 a.m.
    • Work includes building a quadrant roadway and roundabout; widening Santa Fe Drive and Mineral Avenue; adding new lane configurations; installing new traffic signals; and making mobility and safety improvements.                               

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    05-01-2026 - New Date - Travel Advisory

    This notification confirms the new start date for the Mineral Avenue traffic shift that was previously scheduled to begin on April 27 but was postponed due to weather.

    We appreciate the public’s patience as we enter another important phase of the project. If possible, alternative routes that avoid the project area are highly encouraged during this temporary traffic pattern.

    Starting May 2 - Mineral Avenue Traffic Shift

    Starting at 7 p.m. on Saturday, May 2 and lasting until further notice, both directions of traffic on Mineral Avenue from just west of the Santa Fe Drive (US Highway 85) intersection to west of Platte River Parkway will be shifted to the north side of the roadway into a two-way, single-lane alignment.

    To accommodate this reduced alignment and keep east-west traffic flowing, the traffic signals at the Platte River Parkway and Mineral Avenue intersection will be removed, with north-south access limited to right turn lanes only to and from westbound Mineral Avenue. Detour routes will be posted to access eastbound Mineral Avenue via Aspen Grove and Santa Fe Drive.

    This temporary traffic pattern will remain in place while crews widen the south portion of the roadway and make traffic signal and pedestrian improvements as part of the Santa Fe and Mineral Improvements project.

    Location and configuration of the Mineral Avenue traffic shift and related impacts.

    Traffic Impacts

    The following impacts will be in place during the Mineral Avenue traffic shift:

    • Starting the evening of Saturday, May 2, both directions of traffic on Mineral Avenue from west of the Santa Fe Drive intersection to west of South Platte River Parkway, will be shifted north and reduced to a two-way single-lane alignment.
    • The shift will be implemented during overnight hours (7 p.m. to 7 a.m.) on Saturday, May 2 and in place from 7 a.m. on Sunday, May 3 until further notice. 
    • Uniformed traffic control personnel will be present during the overnight shift to manage traffic flows and maintain safety.
    • The traffic signals at the Platte River Parkway and Mineral Avenue intersection will be removed to maintain east-west traffic flows.
    • Southbound Platte River Parkway at Mineral Avenue will be reduced to a single right turn lane onto westbound Mineral Avenue. No left turns will be permitted.
    • Access to eastbound Mineral Avenue to and from Platte River Parkway will be via Aspen Grove and Santa Fe Drive, with detours posted.
    • Access to northbound Platte River Parkway from westbound Mineral Avenue will remain in place.
    • Please refer to the map above for the location and configuration of the traffic shift, related impacts and detour routes.
    • Delays can be expected and alternate routes are strongly advised.
    • Please exercise caution and drive slowly while motorists get used to the reduced alignment and restricted turn lanes.
    • A speed limit of 45 mph is in place on Mineral Avenue.
    • The project limits on Mineral Avenue extend from west of Platte River Parkway to east of the Santa Fe Drive intersection.
    • Message boards, signs and construction devices will be present to alert the public to the closures and work zone restrictions.
    • Follow traffic impacts at LittletonCO.gov/ConeZone.

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April 2026

    04-28-2026 - Updated Travel Advisory

    Postponed - Mineral Avenue Traffic Shift

    The scheduled overnight traffic shift on Monday, April 27 was postponed due to weather and related safety concerns. A notification will be sent out once a new date has been confirmed.

    We appreciate the public's continued cooperation and patience during this temporary delay. 

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    04-22-2026 - Travel Advisory Reminder

    We appreciate the public’s patience as we enter another important phase of the project. If possible, alternative routes that avoid the project area are highly encouraged during this temporary traffic pattern.

    Starting April 27 - Mineral Avenue Traffic Shift

    Starting on Monday night, April 27 and lasting until further notice, both directions of traffic on Mineral Avenue from just west of the Santa Fe Drive (US Highway 85) intersection to west of Platte River Parkway will be shifted to the north side of the roadway into a two-way, single-lane alignment.

    To accommodate this reduced alignment and keep east-west traffic flowing, the traffic signals at the Platte River Parkway and Mineral Avenue intersection will be removed, with north-south access limited to right turn lanes only to and from westbound Mineral Avenue. Detour routes will be posted to access eastbound Mineral Avenue via Aspen Grove and Santa Fe Drive.

    This temporary traffic pattern will remain in place while crews widen the south portion of the roadway and make traffic signal and pedestrian improvements as part of the Santa Fe and Mineral Improvements project.

    Location and configuration of the Mineral Avenue traffic shift and related impacts.

    Traffic Impacts

    The following impacts will be in place during the Mineral Avenue traffic shift:

    • Starting on Monday night, April 27, both directions of traffic on Mineral Avenue from west of the Santa Fe Drive intersection to west of South Platte River Parkway, will be shifted north and reduced to a two-way single-lane alignment.
    • The shift will be implemented during overnight hours on Monday, April 27 and in place from 7 a.m. on Tuesday, April 28 until further notice. 
    • Uniformed traffic control personnel will be present during the overnight shift to manage traffic flows and maintain safety.
    • The traffic signals at the Platte River Parkway and Mineral Avenue intersection will be removed to maintain east-west traffic flows.
    • Southbound Platte River Parkway at Mineral Avenue will be reduced to a single right turn lane onto westbound Mineral Avenue. No left turns will be permitted.
    • Access to eastbound Mineral Avenue to and from Platte River Parkway will be via Aspen Grove and Santa Fe Drive, with detours posted.
    • Access to northbound Platte River Parkway from westbound Mineral Avenue will remain in place.
    • Please refer to the map above for the location and configuration of the traffic shift, related impacts and detour routes.
    • Delays can be expected and alternate routes are strongly advised.
    • Please exercise caution and drive slowly while motorists get used to the reduced alignment and restricted turn lanes.
    • A speed limit of 45 mph is in place on Mineral Avenue.
    • The project limits on Mineral Avenue extend from west of Platte River Parkway to east of the Santa Fe Drive intersection.
    • Message boards, signs and construction devices will be present to alert the public to the closures and work zone restrictions.
    • Follow traffic impacts at LittletonCO.gov/ConeZone.

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    04-21-2026 - Traffic Impacts

    Traffic Impacts - Santa Fe Drive
    Week of April 26

    Please be advised of the following scheduled traffic impacts on Santa Fe Drive (US Highway 85) for next week for the Santa Fe and Mineral Improvements project in the City of Littleton.

    These overnight traffic impacts on Santa Fe Drive will be implemented concurrently with the Mineral Avenue traffic shift from west of the Santa Fe Drive intersection to west of Platte River Parkway on Sunday, April 26. Once implemented, a 24/7 shoulder closure on southbound Santa Fe Drive will be in place along with a reduced alignment on Mineral Avenue.

    Delays can be expected and alternate routes are strongly advised. We appreciate the public's cooperation and patience as we enter a new phase of work for this important infrastructure project.

    Traffic Impacts - Southbound Santa Fe Drive (US 85)

    Sunday, April 26 to Monday, April 27 - Southbound Santa Fe Drive - single overnight lane closure followed by 24/7 right shoulder closure.

    • Starting at 7 p.m. on Sunday, April 26 and lasting until 6 a.m. on Monday, April 27, a single lane closure will be in place on southbound Santa Fe Drive.
    • Uniformed traffic control personnel will be present to manage traffic flows and to maintain safety.
    • The right turn lane from eastbound Mineral Avenue to southbound Santa Fe Drive will be closed during this overnight period, with detours posted. 
    • Detour routes include heading eastbound on Mineral Avenue to Broadway or Southpark to bypass the closure.
    • Other detour routes do exist.
    • Right turn restrictions will be removed by 6 a.m. on Monday, April 27.
    • The right shoulder on southbound Santa Fe Drive will be closed 24/7 starting at 7 a.m. on Monday, April 27 until late June.
    • The project limits on Santa Fe Drive extend a half-mile north and south of the Mineral Avenue intersection, from Mile Point 201 to MP 202 in the City of Littleton.
    • Delays can be expected and alternate routes are advised.
    • Speed limits of 45 to 50 mph exist on Santa Fe Drive.
    • Please observe posted signs and exercise caution when driving through the work zone.
    • Check the Cone Zone Page or COtrip.org for scheduled traffic impacts.

    Work includes setting barrier and preparing the shoulder for a 24/7 closure.

    About the Project

    • The project began in late November 2025 with anticipated full completion by fall 2027.
    • Normal working hours are 7 a.m. to 5 p.m. Monday to Friday.
    • Some overnight work will take place from 7 p.m. to 5 a.m.
    • Work includes building a quadrant roadway and roundabout, widening Santa Fe Drive and Mineral Avenue, adding new lane configurations, installing new traffic signals, and making area mobility and safety improvements.

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    04-17-2026 - Postponed Traffic Impacts

    The previously scheduled lane and shoulder closures on southbound Santa Fe Drive (US Highway 85) from Sunday, April 19 to Saturday, April 25 have been postponed until further notice. A notification will be sent out once new dates have been confirmed.

    About the Project

    • The project began in late November 2025 with anticipated full completion by fall 2027.
    • Normal working hours are 7 a.m. to 5 p.m. Monday to Friday.
    • Some overnight work will take place from 7 p.m. to 5 a.m.
    • Work includes building a quadrant roadway and roundabout, widening Santa Fe Drive and Mineral Avenue, adding new lane configurations, installing new traffic signals, and making area mobility and safety improvements. 

    Stay Connected!

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    04-13-2026 - Travel Advisory

    Travel Advisory

    We appreciate the public’s patience as we enter another important phase of the project. If possible, alternative routes that avoid the project area are highly encouraged during this temporary traffic pattern.

    Starting April 27 - Mineral Avenue Traffic Shift

    Starting on Monday night, April 27 and lasting until further notice, both directions of traffic on Mineral Avenue from just west of the Santa Fe Drive (US Highway 85) intersection to west of Platte River Parkway will be shifted to the north side of the roadway into a two-way, single-lane alignment.

    To accommodate this reduced alignment and keep east-west traffic flowing, the traffic signals at the Platte River Parkway and Mineral Avenue intersection will be removed, with north-south access limited to right turn lanes only to and from westbound Mineral Avenue. Detour routes will be posted to access eastbound Mineral Avenue via Aspen Grove and Santa Fe Drive.

    This temporary traffic pattern will remain in place while crews widen the south portion of the roadway and make traffic signal and pedestrian improvements as part of the Santa Fe and Mineral Improvements project.

    Location and configuration of the Mineral Avenue traffic shift.

    Traffic Impacts

    The following impacts will be in place during the Mineral Avenue traffic shift:

    • Starting on Monday night, April 27, both directions of traffic on Mineral Avenue from west of the Santa Fe Drive intersection to west of South Platte River Parkway, will be shifted north and reduced to a two-way single-lane alignment.
    • The shift will be implemented during overnight hours on Monday, April 27 and in place from 7 a.m. on Tuesday, April 28 until further notice. 
    • The traffic signals at the Platte River Parkway and Mineral Avenue intersection will be removed to maintain east-west traffic flows.
    • Southbound Platte River Parkway at Mineral Avenue will be reduced to a single right turn lane onto westbound Mineral Avenue. No left turns will be permitted.
    • Access to eastbound Mineral Avenue to and from Platte River Parkway will be via Aspen Grove and Santa Fe Drive, with detours posted.
    • Access to northbound Platte River Parkway from westbound Mineral Avenue will remain in place.
    • Please refer to the map for the location and configuration of the traffic shift.
    • Delays can be expected and alternate routes are strongly advised.
    • Please exercise caution and drive slowly while motorists get used to the reduced alignment and restricted turn lanes.
    • A speed limit of 45 mph is in place on Mineral Avenue.
    • The project limits on Mineral Avenue extend from west of Platte River Parkway to east of the Santa Fe Drive intersection.
    • Signs and construction devices will be present to alert the public to the closures and work zone restrictions.
    • Follow traffic impacts at LittletonCO.gov/ConeZone.

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    04-13-2026 - Traffic Impacts

    Scheduled Traffic Impacts - April

    Please be advised of the following scheduled traffic impacts for this month for the Santa Fe and Mineral Improvements project in the City of Littleton.

    A separate Travel Advisory will be issued announcing the upcoming traffic shift on Mineral Avenue. Notifications will be sent out if there are any changes to the schedule. 

    Traffic Impacts - Santa Fe Drive (US Highway 85)

    Sunday, April 19 to Monday, April 20 - Southbound Santa Fe Drive - single overnight lane closure & 24/7 right shoulder closure.

    • Starting at 7 p.m. on Sunday, April 19 and lasting until 6 a.m. on Monday, April 20 a single lane closure will be in place on southbound Santa Fe Drive, with signs and devices present to maintain safety.
    • The right shoulder on southbound Santa Fe Drive will be closed 24/7 starting at 7 a.m. on Monday, April 20 until late June.
    • The project limits on Santa Fe Drive extend a half-mile north and south of the Santa Fe Drive and Mineral Avenue intersection, from Mile Point 201 to MP 202 in the City of Littleton.
    • Delays can be expected and alternate routes are advised.
    • A speed limit of 50 mph is in place on Santa Fe Drive.
    • Check the Cone Zone Page or COtrip.org for scheduled traffic impacts.
    • Work includes setting barrier and preparing the shoulder for a 24/7 closure.

    Travel Advisory - Mineral Avenue - Traffic Shift

    Monday, April 27 until further notice - Mineral Avenue from west of Santa Fe Drive intersection to west of Platte River Parkway - traffic shift north into two-way single-lane alignment.

    • Starting on Monday night, April 27, both directions of traffic on Mineral Avenue from west of the Santa Fe Drive intersection to west of South Platte River Parkway, will be shifted north and reduced to a two-way single-lane alignment.
    • The shift will be implemented during overnight hours on Monday, April 27 and in place from 7 a.m. on Tuesday, April 28 until further notice. 
    • The traffic signals at the Platte River Parkway and Mineral Avenue intersection will be removed to maintain east-west traffic flows.
    • Southbound Platte River Parkway at Mineral Avenue will be reduced to a single right turn lane onto westbound Mineral Avenue. No left turns will be permitted.
    • Access to eastbound Mineral Avenue to and from Platte River Parkway will be via Aspen Grove and Santa Fe Drive, with detours posted.
    • Access to northbound Platte River Parkway from westbound Mineral Avenue will remain in place.
    • Please refer to the map for the location and configuration of the traffic shift.
    • Delays can be expected and alternate routes are strongly advised.
    • Please exercise caution and drive slowly while motorists get used to the reduced alignment and restricted turn lanes.
    • A speed limit of 45 mph is in place on Mineral Avenue.
    • The project limits on Mineral Avenue extend from west of Platte River Parkway to east of the Santa Fe Drive intersection.
    • Signs and construction devices will be present to alert the public to the closures and work zone restrictions.
    • Follow traffic impacts at LittletonCO.gov/ConeZone.

    Work includes widening the south side of Mineral Avenue and making traffic signal and pedestrian accessibility improvements.

    Map of the location and configuration of the Mineral Avenue traffic shift.

    About the Project

    • The project began in late November 2025 with anticipated full completion by fall 2027.
    • Normal working hours are 7 a.m. to 5 p.m. Monday to Friday.
    • Some overnight work will take place from 7 p.m. to 5 a.m.
    • Work includes building a quadrant roadway and roundabout, widening Santa Fe Drive and Mineral Avenue, adding new lane configurations, installing new traffic signals, and making area mobility and safety improvements. 

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    04-06-2026 - Project Update

    This update includes upcoming traffic impacts and other status notifications, as well as construction progress and planned work for the next few weeks for the Santa Fe and Mineral Improvements project in Arapahoe County.  

    Upcoming Traffic Impacts: Starting in mid-April, the right shoulder on southbound Santa Fe Drive (US Highway 85) will be closed 24/7 for access to the work zone.

    In addition, starting later this month or in early May, work will begin on Mineral Avenue west of the Santa Fe intersection, with some traffic impacts expected. A notification will be sent out once dates are confirmed.

    Cancelled Traffic Shifts on Santa Fe Drive: The previously scheduled traffic shifts and reduced alignments in both directions of Santa Fe Drive have been cancelled. A notification will be sent out with any changes to the schedule.

    Since the last update, crews have made significant progress fine grading and forming and pouring curb and gutter for the new quad roadway extension of Platte River Parkway in the southwest quadrant of the project limits. Other work included forming and pouring the toe wall for the concrete box culvert; placing concrete pipe and inlets for the new drainage system; installing electrical conduit; and excavating adjacent areas.

    Planned work on the new quad roadway over the next few weeks includes continued forming and pouring concrete curb and gutter; forming sidewalks; installing median covers; and concrete and asphalt paving. Other scheduled activities sitewide include drilling light pole caissons, installing electrical conduit, and placing concrete storm drainage pipe and inlet structures.

    Drone view of roundabout construction for the quad roadway. Aerial photography by HDR, Inc.


    Ground views of graded roadway, roundabout construction, and curb and gutter for the new quad roadway extension of Platte River Parkway. Photography by Estate Media.

    About the Project

    • The project began in late November 2025 with anticipated full completion by fall 2027.
    • Normal working hours are 7 a.m. to 5 p.m. Monday to Friday.
    • Some overnight work will take place from 7 p.m. to 5 a.m.
    • Work includes building a quadrant roadway and roundabout; widening Santa Fe Drive and Mineral Avenue; adding new lane configurations; installing new traffic signals; and making mobility and safety improvements.

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March 2026

    03-05-2026 - Project Update

    This update includes an amended upcoming travel advisory as well as construction progress and planned work for the next few weeks for the Santa Fe and Mineral Improvements project in Arapahoe County.  

    Amended Upcoming Travel Advisory: The planned traffic shifts and temporary realignment of both directions of traffic on Santa Fe Drive (US Highway 85) for this month have been postponed. The reason for the postponement is to minimize further impacts to the traveling public.

    A notification will be sent out in advance of confirmation of the traffic shifts or any scheduled traffic impacts for the project. 

    Since the last update, crews have made significant progress excavating, placing road base and grading the new quad roadway extension of Platte River Parkway in the southwest quadrant of the project limits. Other work included forming and pouring the toe wall for the concrete box culvert and installing concrete pipe and inlets for the new drainage system.

    Planned work on the new quad roadway over the next few weeks includes fine grading; forming and pouring concrete curb and gutter; installing median covers; and paving. Other scheduled activities include ongoing installation of storm drainage pipe and inlet structures, and excavating adjacent areas. 

    North drone view of the new quad roadway extension of Platte River Parkway. Aerial photography by HDR, Inc.

    Ground view of the new quad roadway Platte River Parkway extension. Photography by Estate Media.


    About the Project

    • The project began in late November 2025 with anticipated full completion by fall 2027.
    • Normal working hours are 7 a.m. to 5 p.m. Monday to Friday.
    • Some overnight work will take place from 7 p.m. to 5 a.m.
    • Work includes building a quadrant roadway and roundabout; widening Santa Fe Drive and Mineral Avenue; adding new lane configurations; installing new traffic signals; and making mobility and safety improvements.

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February 2026

    02-19-2026 - Project Update

    This update includes notice of an upcoming travel advisory as well as construction progress and planned work for the Santa Fe and Mineral Improvements project in Arapahoe County.  

    Upcoming Travel Advisory: Starting within the next month, both directions of traffic on Santa Fe Drive (US Highway 85) within the project limits will be shifted east into a temporary alignment to accommodate widening and other work on the west side of the work zone. The shift will take place over a two-night period, with lane closures in place and delays expected. Once implemented, two through lanes and a dedicated single left turn lane will remain in place in both directions of Santa Fe Drive until further notice. A notification will be sent once dates are confirmed.

    Since the last update, crews have finished backfilling and waterproofing the concrete box culvert and have begun installing concrete pipe and inlets for the new drainage system. Ongoing work includes excavating for the new quad roadway, and removing asphalt and concrete on Mineral Avenue west of the Santa Fe Drive intersection.

    Planned work over the next two weeks includes excavating and placing road base for the new quad roadway, installing drainage pipe and inlets, and building embankment areas. Other work includes preparing for the traffic shift, removing asphalt and concrete, and replacing the traffic signals at Mineral and Platte River Parkway with three-way stop signs. These signs will remain in place until further notice.

    Recent view of the concrete box culvert and excavation for the new quad roadway. Photography by Estate Media.


    About the Project

    • The project began in late November 2025 with anticipated full completion by fall 2027.
    • Normal working hours are 7 a.m. to 5 p.m. Monday to Friday.
    • Some overnight work will take place from 7 p.m. to 5 a.m.
    • Work includes building a quadrant roadway and roundabout; widening Santa Fe Drive and Mineral Avenue; adding new lane configurations; installing new traffic signals; and making mobility and safety improvements.

    Stay Connected!

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January 2026

    01-21-2026 - Project Update

    Starting on Thursday, Jan. 22, 2026 and lasting until about 5 p.m. on Friday, Jan. 30, the City of Littleton and the Colorado Department of Transportation will close the far left turn lane from northbound Santa Fe Drive (US HIghway 85) to westbound Mineral Avenue and close the left lanes in both directions of Mineral Avenue within the project limits. These traffic impacts will remain in place during the nine-day period as part of the Santa Fe and Mineral Improvements project.  

    The closures are necessary so crews can remove portions of the existing median and begin widening and traffic signal improvements on the west side of the project corridor at the Platte River Parkway and Mineral intersection.

    Other work underway sitewide includes backfilling and waterproofing the newly installed concrete box culvert in the southwest portion of the project, installing storm drainage pipe and inlets, potholing, and starting excavation for the new quad roadway.

    Traffic Impacts 

    Thursday, Jan. 22 to Friday, Jan. 30 - Left turn lane closure from north-bound Santa Fe Drive to westbound Mineral Avenue & left lane closures in both directions of Mineral Avenue.

    • The far left turn lane on northbound Santa Fe Drive to westbound Mineral Avenue will be closed from approximately 7 a.m. on Thursday, Jan. 22 to 5 p.m. on Friday, Jan. 30. The second left turn lane will remain open.
    • Left lane closures will also be in place in both directions of Mineral Avenue within the project limits during this nine-day period, reducing traffic to a two-way, single lane alignment. 
    • The closures will remain in place 24 hours a day.
    • Please refer to the map for lane closure information.
    • The project limits on Santa Fe Drive extend from Mile Point 201 to MP 202, approximately half a mile south to half a mile north of the Mineral Avenue intersection.
    • The project limits on Mineral Avenue extend from west of Platte River Parkway to east of the Santa Fe Drive intersection.
    • Signs and construction devices will be present to alert the public to the closures and work zone restrictions and to maintain safety.
    • Delays can be expected and caution is advised.
    • Visit LittletonCO.gov/ConeZone for traffic impacts.

    Work includes removing asphalt and concrete, and performing traffic signal and utility work at the Platte River Parkway and Mineral Avenue intersection.

    Location of the lane closures that will be in place from Jan. 22 to Jan. 30 for the City of LIttleton's Santa Fe and Mineral Improvements project. 

    About the Project

    • The project began in late November 2025 with anticipated full completion by fall 2027.
    • Normal working hours are 7 a.m. to 5 p.m. Monday to Friday.
    • Some overnight work will take place from 7 p.m. to 5 a.m.
    • Work includes building a quadrant roadway and roundabout, widening Santa Fe Drive and Mineral Avenue, adding new lane configurations, installing new traffic signals, and making mobility and safety improvements sitewide. 

    Stay Connected!

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