Colorado Regulatory Offices

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Denver Office

Omaha District
9307 South Wadsworth Blvd.
Littleton, CO 80128
(303) 979-4120

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Durango Office (SPA)

Colorado West Regulatory Branch
Albuquerque District
1970 East 3rd Avenue, Suite 109
Durango, CO 81301-5025
(970) 259-1764

Durango Office email: SPA-RD-CO@usace.army.mil

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Fort Carson Regulatory Office (SPA)

Albuquerque District
6082 McGrath, Bldg.
1359 Fort Carson, CO 80913
Mailing Address
PO Box 12611
​Colorado Springs, CO 80902
Office:(505) 231-4187 Email: CESPA-RD-CO@usace.army.mil
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Grand Junction Office (SPA)

Albuquerque District
400 Rood Avenue, Room 224
Grand Junction, CO 81501
(970) 243-1199

Grande Junction email: SPA-RD-CO@usace.army.mil

Denver Jurisdictional Determinations

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DA NumberProject NameEnd Date

NWO-2025-00644-DEN

8342 Colorado Blvd, Weld County, CO6/18/2025

NWO-2023-01012-DEN

Mitchell Gulch Pond, Douglas County, CO6/17/2025

NWO-2019-01247-DEN

Bahn Farm Cohousing Community, Boulder County, CO6/10/2025

NWO-2025-00616-DEN

Lost Creek Recharge Pond, Weld County, CO6/10/2025

NWO-2025-00467-DEN

Sweetgrass, Weld County, CO6/9/2025

NWO-2018-00759-DEN

Thornton Water Project, Larimer and Weld Counties, CO6/6/2025

NWO-2020-00612-DEN

Former Knoth Reservoir, Boulder County, CO5/30/2025

NWO-2025-00640-DEN

Windy Bluff, Weld County, CO5/29/2025

NWO-2025-00050-DEN

AdventHealth, Arapahoe County, CO5/7/2025

NWO-2025-00169-DEN

The Ridge, Douglas County, CO5/6/2025
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