Denver Metroplex Environmental

Welcome to the Denver Metroplex Environmental Assessment (DEN METROPLEX EA) Website

The FAA is preparing an Environmental Assessment (EA) in accordance with FAA Order 1050.1F to document the potential environmental effects associated with the proposed optimization of aircraft routes and the supporting airspace management structure serving aircraft operating under instrument flight rules (IFR) while departing from or arriving to the Denver Metroplex area.

Please use the navigation bar on the left to access important information on the EA, including the EA documents, the project schedule, and contact information for the Project.

The Project

The Denver Metroplex Project would improve the efficiency of airspace in the Denver Metroplex area by optimizing aircraft arrival and departure procedures to and from various airports, including:

  • Denver International Airport (DEN)
  • Centennial Airport (APA)
  • Greeley-Weld County Airport (GXY)
  • Fort Collins - Loveland Municipal Airport (FNL)
  • Rocky Mountain Metropolitan Airport (BJC)

Additionally, the Longmont Vance Brand Municipal Airport (LMO) is currently and would continue to be served by flight procedures and is included in the EA but does not meet the FAA Order 1050.1F criteria to be designated an EA Study Airport.

The Project may involve changes in aircraft flight paths and altitudes in certain areas, but would not result in any ground disturbance or increase the number of aircraft operations at any of the above airports.

To evaluate the potential environmental impacts of the Denver Metroplex project, the FAA is establishing the General Study Area, consisting of areas around the above airports and outlying satellite airports. The General Study Area will be used to evaluate the potential environmental impacts resulting from changes in aircraft routing proposed to occur below 10,000 feet above ground level (AGL).

Denver Metroplex

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