News Release

Summer Route Closure of Lane 6 between Mosca and Great Sand Dunes NPP

Lane 6 N Road Closures Maps 1-2 Updated May 19
Map 1 shows the western half of Lane 6N closed and a detour following CO 17, US 160, and CO 150 to the national park. Map 2 shows the eastern half of Lane 6N closed and a detour following CO 17, US 160, and CO 150 to the national park.

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News Release Date: April 19, 2022

Contact: Kathy Faz, 719-378-6341

Lane 6N Road Construction Update as of 6/6/2022

Today, Phase 1 of the Lane 6N road construction project begins. During this phase, the west side of the road will be closed to through traffic. The San Luis State Wildlife Area is open along Lane 6 but only accessible by traveling westbound on Lane 6 North via CO-150. Travelers wishing to access Great Sand Dunes and other public lands or businesses along CO-150 must use the posted detour to US-160. Local residents will be allowed direct access to homes and businesses on Lane 6 North during construction, with potential construction delays up to 30 minutes. Great Sand Dunes and Alamosa County will continue to post updates on Twitter, Facebook and Instagram. For more information visit, https://highways.dot.gov/federal-lands/projects/co/lane-6

Lane 6N Road Construction Update as of 5/21/2022

Lane 6 will be open to through traffic from now through June 6th. There is potential for travelers to encounter construction operations requiring a single lane closure (one lane through at a time) from now through May 27th. During these single lane closures, up to 30 minutes delays (traffic holds) are possible.

The road will be fully open and no work will impact traffic from May 27th through June 5th.

Lane 6 North will be under full road closure beginning June 6, 2022. Great Sand Dunes National Park and San Luis State Wildlife Area are both open to the public during the closures. Local residents will be allowed direct access to homes and businesses on Lane 6 North during construction, with potential construction delays up to 30 minutes. All other road users should use the posted detour.

PHASE 1 DETOUR to San Luis Wildlife Area and Great Sand Dunes National Park
• Lane 6 North will be closed from the intersection with CO-17 to the entrance of San Luis State Wildlife Area
• Detour will be in effect, travelers on CO-17 may proceed south to Alamosa, then east on US-160, then north on CO-150 to avoid the Lane 6 North closure
• San Luis State Wildlife Area may be accessed westbound on Lane 6 North via CO-150
• Great Sand Dunes National Park may be accessed northbound on CO-150

PHASE 2 DETOUR to San Luis Wildlife Area and Great Sand Dunes National Park
• Lane 6 North will be closed from the intersection with CO-150 to the entrance of San Luis State Wildlife Area
• Detour will be in effect, travelers on CO-17 may proceed south to Alamosa then east on US-160, then north on CO-150 to avoid the Lane 6 North closure
• San Luis State Wildlife Area may be accessed eastbound on Lane 6 North via CO-17
• Great Sand Dunes National Park may be accessed northbound on CO-150

Original Press Release

Alamosa County and the Federal Highway Administration Central Federal Lands Highway Division (FHWA-CFLHD), in cooperation with the Great Sand Dunes National Park and Preserve, will be constructing improvements to Lane 6 North between Mosca, CO and the national park. The route is approximately 16 miles long and is an east west connector between State Highways 17 and 150. The route serves the local community and region and provides access to Great Sand Dunes National Park and Preserve, San Luis State Wildlife Area, Zapata Falls, Bureau of Land Management lands, and US Forest Service lands. The proposed improvements include resurfacing, restoration, and rehabilitation of the roadway.

The project will impact traffic on Lane 6 between CO Hwy 17 and CO Hwy 150 and eliminate through access beginning as early as May 16, continuing through September. The project is divided into East and West Sections and each section will experience full closure of both lanes 24 hours per day as noted below. During this period, visitors to the Great Sand Dunes National Park and Preserve should avoid Lane 6 and instead detour south to US Hwy 160.

The road will be completely open, 24 hours, from May 27 - June 5 to provide access for travelers accessing the national park unit and other public lands before, during and after the Memorial Day weekend.

Partial route access will only be as far as the San Luis Lakes State Wildlife Area (an 8-mile stretch of the road) for travelers accessing the SWA and only accessible for local access. Local access is defined as local private property owners living along Lane 6 and federal property owners (areas not publicly accessible, administrative use only). All users (travelers and local access) accessing any portions of Lane 6 should expect delays up to 30 minutes. Travelers or local traffic using Lane 6 to access Great Sand Dunes, businesses along Hwy. 150, and Hwy. 17, Zapata Subdivision homeowners, and other public lands along Hwy. 150: April 1 – May 15: Shoulder work/single lane closures allowed (minimal delays anticipated but 30-minute max allowed) May 27- June 5 - Lane 6 open 24 hours, no construction occurring. May 16 through September: Lane 6 closed 24 hours and detour in place via Hwy. 160, approximately 13 miles south from the intersections of Lane 6 with either Hwy 17 or Hwy 150. Access to San Luis State Wildlife Area (SWA): May 15 – July 20: West section full closure (8 miles) – access to San Luis Lakes SWA from the East via CO Hwy 150. July 20 – September 1: East section full closure – access to San Luis Lakes SWA from the West via CO Hwy 17.

It is important for travelers to plan for the impact to their travel plans from the distance of the detour to available facilities such as gas stations, restrooms, grocery stores and restaurants. For information on how this will impact travel to Great Sand Dunes National Park and Preserve, contact the visitor center at 719-378-6395 during visitor center operating hours, 9am to 4:30pm. For information on how this will impact travel to other businesses or impact local private property owners, please contact Alamosa County Road & Bridge at 719-589-6262 during operating hours, 7am to 5:30pm, Monday through Thursday. For general information on the construction project, visit https://highways.dot.gov/federal-lands/projects/co/lane-6.

Great Sand Dunes and Alamosa County will provide updates through the county and park’s Twitter accounts, @GreatDunesNPS @Alamosa_County using #Lane6NUpdates



Last updated: June 6, 2022

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Visitor Center
11999 State Highway 150

Mosca , CO 81146

Phone:

719 378-6395
Great Sand Dunes Visitor Center main number

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