Centennial Airport

Part 150 Noise Study

The following is a brief history of the Part 150 and how we got to where we are today: a grant application was submitted to the Federal Aviation administration (FAA) in 1997, the Airport received the grant in September of 1997, consultant selection began in late 1997 and Barnard Dunkelberg & Company was selected in September of 1998 and have been working on the project ever since.

Two committee’s were formed, one representing the technical aspect of the study (Technical Advisory Committee, TAC) and the other representing the community’s (Community Advisory Committee, CAC) around the Airport. The Consultant worked with the committees to develop and prioritize the following 12 recommendations:

1. Ban Stage 1 Aircraft
2. Ban Stage 2 Jet Aircraft Under 75,000 lbs. At Night
3. Implement 010 Degree Departure Heading for Business Jets At Night
4. Test 24-Hours Flight Tracks Between 350 and 010 Degree Headings
5. Eliminate Preferential Runway Use Procedure
6. Implement 170 Degree Departure to 4 DME or 8,000 MSL (+/- 20 degrees)
7. Amend Community Plans and Zoning Ordinances
8. Update and Establish Environmental/Noise Abatement Liaison/Office
9. Install Noise Monitoring System and Develop Program
10. Development/Implementation of Fly Quiet Program
11. Operations Review and Part 150 Updates
12. Establish Follow-up Roundtable/Committee.

The Consultant also developed existing and future noise exposure maps (NEM’s) based on the recommendations and forecasts. These are the noise contour maps that define the National DNL 65 threshold noise standard as well as lower and higher noise contours.

On October 11th a Public hearing proceeded by an Open house was held to provide all parties with an opportunity to voice their ideas/concerns. Then on November 15th the Airport Authority Board approved the Committee’s recommendations in order to formally submit the recommendations to the FAA. The next step is for the FAA to place the recommendations on the docket and acceptance of the NEM’s begins the 180-day FAA review process. The FAA can then either approve, disapprove or approves as a voluntary measure only, the recommended alternatives of the noise compatibility program. The final step in the formal Part 150 process is for the Airport to begin implementation of the airport noise mitigation program.

So you can see we’ve come a long way, but still have some work ahead of us. For more information on the Part 150 at Centennial you can contact Todd Green, Noise Specialist at 303-790-0598 Ext. 2909

FAR Part 150 recommendations, (Adobe Acrobat version)

Noise Contour Map Update FIRST DRAFT (PDF version)

Noise Contour Map Update FINAL DRAFT (PDF version)

Noise Contour Map Update Correction

Noise Compatibility Program Brochure