Northwestern Colorado Branch

The Northwestern Colorado Branch operates out of the Grand Junction field office and includes the following counties: Delta, Eagle, Garfield, Grand, Gunnison, Hinsdale, Mesa, Moffat, Montrose, Ouray, Pitkin, Rio Blanco, Routt, Saguache, San Miguel, and Summit. If your project is not located in one of these counties, please refer to the Colorado Regulatory Map and contact the Regulatory office that covers your area.

How to submit requests and information: All permit applications, preconstruction notifications, requests for jurisdictional determinations, compliance certifications, and monitoring reports should be submitted electronically to  Within 5 working days from submitting your request, you will be notified of the assigned project manager and project number.  With the exception of compliance certification forms and monitoring reports, information relating to existing pending projects can be sent directly to the project manager assigned to the action.  Contact information is as follows:

Project Manager Phone
Brad Crosson
Office: 970-243-1199 ext. 1016
Mobile: 970-837-6530
Tyler Adams
Office: 970-243-1199 ext. 1013
Mobile: 970-549-6538
Robert Frank Office: 970-243-1199 ext. 1017
Ben Wilson
Office: 970-243-1199 ext. 1012
Mobile: 970-893-1021