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NYSDOT’s Legal Obligation to Protect Airports and Aircraft During and After Construction 1.

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Presentation on theme: "NYSDOT’s Legal Obligation to Protect Airports and Aircraft During and After Construction 1."— Presentation transcript:

1 NYSDOT’s Legal Obligation to Protect Airports and Aircraft During and After Construction 1

2 Three Cases to be Considered by DOT First Case is for Permanent Marking/Lighting (ex. Bridges, Light Poles, Towers, Canal Structures, etc.) or any Project on an Airport. This would have to be considered early on and included in the Scoping and Design (could be any of greater than 200’ AGL, penetrating test surfaces, or on an airport) 2

3 Three Cases to be Considered by DOT Second Case is for Temporary Marking/Lighting (ex. Cranes, Construction Equipment, etc.). The Designer would have to make their best guess as to the height of the Equipment and include a Special Specification in the Estimate with Special Notes for the Contractor to follow (could be any of greater than 200’ AGL, penetrating test surfaces or on an airport). 3

4 Three Cases to be Considered by DOT Third Case is when Temporary or Permanent Marking/Lighting is not Required, but it is known there is unusual or high aircraft activity in the area, it is prudent for the Department to employ permanent or temporary measures as indicated in the Worksheet. For example a natural travel channel or over a lake or river near an airport; Construction vehicle parking, etc. For Permanent Structures this would have to be considered early in scoping; for Temporary items, would need to be considered a little later. Contact the Aviation Bureau if added guidance is desired for this case. This portion also list Best Practices to be followed. 4

5 FAA form 7460-1 Who Needs to File CFR* Title 14 Part 77.9 states that any person/organization who intends to sponsor any of the following construction or alterations must notify the Administrator of the FAA. Required to be filed in under 3 ConditionsCFR* Title 14 Part 77.9 Note: $1,000 per day fine for not complying when needed. 5 *CFR = Code of Federal Regulations

6 FAA form 7460-1 First Condition: Any item greater than 200’ AGL regardless of location (Permanent or Temporary) > 200’ 6

7 FAA form 7460-1 Second Condition: Construction (Permanent or Temporary) penetrates noted test surfaces. 7 Slope Ratio Slope Ratio = 100:1 Slope Ratio = 50:1 Antenna, Building & Tower Penetrate Surface, Notice Required. Slope Ratio = 25:1 Antenna & Bldg Penetrate Surface, Notice Required. Construction Crane Penetrates Surface, Notice Required, even though the building would not penetrate surface.

8 Cont’d - Second Condition: Construction (Permanent or Temporary) penetrates noted test surfaces. Marked and Lighted Marking Cranes increases their visablity Temporary Permanent Crane #1Crane #2 FAA form 7460-1

9 Third Condition: Any construction or alteration located on a public use airport or heliport regardless of height or location. Construction on airports also needs to comply with FAA Advisory Circular 150-5370- 2E, Operational Safety on Airports During Construction & AC 150-5210-5EC, Painting, Marking and Lighting Of Vehicles on Airports & AC 70-7460-1K- Obstr. Mrkg. & Lighting

10 FAA form 7460-1 10 (Copy available at: http://www.faa.gov/documentLibrary/media/form/faa7460_1.pdf)

11 FAA Advisory Circular 70/7460-1K Obstruction Marking and Lighting, describes the standards for marking and lighting structures such as buildings, chimneys, antenna towers, cooling towers, storage tanks, supporting structures of overhead wires, construction equipment, etc. This AC appears to be more related to permanent structures. Copy available at : http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAdvis oryCircular.nsf/0/b993dcdfc37fcdc486257251005c4e21/$FIL E/AC70_7460_1K.pdf http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAdvis oryCircular.nsf/0/b993dcdfc37fcdc486257251005c4e21/$FIL E/AC70_7460_1K.pdf 11

12 FAA Advisory Circular 70-7460-2k While this AC has been discontinued, it is a great reference document and gives one a good background into the filing requirements for the FAA form 7460-1. It is recommended that the user review this document before filing. Copy available at : http://www.aopa.org/members/files/ac/ac70-7460-2k.pdf 12

13 DOT Draft FAA Obstruction Evaluation Worksheet 13 For 1) Permanent Case and 2) Temporary Case

14 DOT Draft FAA Obstruction Evaluation Worksheet (Cont’d) 14 For Third Case, when filing of the FAA 7460 form is not required. This portion can also be used for Best Practices to follow on projects near airports.

15 15 NYS Public Use Airports within the Regions NYSDOT Aviation Bureau 2011

16 Analysis Example (Sky Plateau Ranch Airport) 16 Step One: Search Google* for airports within 20,000’ of the Project Limits. Draw a 20,000’ Test Circle from the Project, to determine if any public use airports are nearby. Project Location 20,000’ Radius “Captured” Airport 1a.) See Right. Make sure the “Airports” box is checked in the More Layers group in the column on the left side on the screen in Google. 1b.) How to draw the Test Circle, go to: http://www.freemaptools.com/radius-around-point.htm Input circle radius in miles (3.80 mi.). Locate proposed circle center by using the map at the top of the site page to zoom into the project location. After zooming to location, left click and hit point on the map with mouse. a balloon locator point will appear. Scroll down the page and hit the button labeled “Generate KML”, then hit the blue highlighted “Download KML File Here”. Hit the Open tab in the File Download box that appears – it will then zoom to the location and show a circle in Google. Right click in circle and choose Properties and rename and save the new Polygon. You can change the circle fill and edge properties here. Go to column on left (under My Places) and right click on re-named Polygon and choose “Save to my Places”. 1c): How to determine if any of the captured airports within the 20,000’ Test circle/radius are Public Use or Private use (Only Public Use airports need to be considered): See the next slide to determine if the airport is Public Use or Private Use. Click on the airport in Google to obtain the three digit location identifier. Use this code or the main part of the airport name in Step Two to find the airport information. Step Two: Determine the length of each runway of all the Public Use Airports in the circled area. See the next slide to determine the runway lengths for each airport. *As an alternate to Google, one could draw the circle on GIS mapping or even Topo maps to “capture” nearby airports.

17 Search for airport by name, city or Location ID (three digit code). See a copy of the site pages below to determine Lat./Long. of Airport and if Airport(s) are Public or Private Use and the Runways lengths at each airport. Analysis Example (Sky Plateau Ranch Airport ), cont’d 17 Choose airport (if more than one is listed), then hit round blue circle at upper right of page, titled “5010 Form” City of Airport Airport NameAirport Loc. Identifier Airport Use = Public Lat./Long. of Airport center Runway Lengths in feet 5010 Form and the 5010 Form for that airport will appear (see right for example). Step Two Continued: Go to the FAA sponsored site: http://www.gcr1.com/5010web/ http://www.gcr1.com/5010web/

18 Step Two Continued: Determine Length of Runways of all captured Public Use Airports in the area and apply all applicable Radii. The Test Circle of a 20,000’ radius is a way of tossing a net to determine which airports need to be investigated. 18 10,000’ Radius Analysis Example (Sky Plateau Ranch Airport), cont’d 2a.) Looking at the example 5010 Form on the previous slide (under item #18), you will see this is a Public Use airport and therefore this “captured” airport within the Test 20,000’ circle will be investigated. If it was Private Use, it would be ignored and the investigated complete for that airport. Make sure you are looking at Item #18 for Airport Use (and not number 10, which is Ownership). 2b.) Under Item #31 on the 5010 Form shown on the previous slide, we can see this airport has 2 runways. One runway is 2000’ and one is 2400’. Choose the longest of all the runways at the airport. Since the longest is less than or equal to 3200’, you would now draw a circle from the point of the runway closest to the Project, with a 10,000’ radius (if the runway was >3200’, you would have drawn a 20,000’ radius circle). Subject Airport Project Site We would repeat this process for every airport that was within the Test Circle area and apply the applicable radius from each runway (10,000’ radius for runways <= to 3200’ and a 20,000’ radius for runways greater than 3200’). You would draw each circle the same way you drew the Test circle on slide number 16. An approximate Lat./Long for the center of each circle can be determined from Google Map, from the NYS Airport Directory, from the 5010 Form (Item #’s 19 & 20) or you can again zoom into the map (easiest) on the circle maker site. For this example airport we can see that the Project Site is located within the 10,000’ radius and we will now go to the next step.

19 Step Three: Since runways are <= 3,200’ Check Test Surface Penetrations using a 50:1 (horizontal to vertical) Slope Ratio 19 3a.) We are using the 50:1 slope since the subject airport had runways <= 3200’. Estimated MSL (above Mean Sea Level) Elevations of the Airport can be determined from Google Map, the NYSDOT Airport Directory or the FAA sponsored site: http://www.gcr1.com/5010web/ (Item #’s 19 & 20).http://www.gcr1.com/5010web/ 3b.) Compare to Project site elevations and add equipment or crane elevations. From our example and sketch below, we can see that neither the bridge or the cranes penetrate the 50:1 test surfaces. In this case filing of the FAA 7460-1 Form is not required. Photos of Project Elevation Bridge Crane Airport 50:1 Slope Analysis Example (Sky Plateau Airport), cont’d 3c.) Even though filing the Form and marking the cranes is not required, we decided to mark the cranes using the Third Case (noted on slide 4). The Third Case is when Temporary or Permanent Marking/Lighting is not Required, but it is known there is unusual or high aircraft activity in the area, and/or it is prudent for the Department to employ permanent or temporary measures - as indicated in the Worksheet (this portion of worksheet shown on slide 14). In this example, this area is a natural travel channel (along the water between the elevated hills) and is only a mile from the airport. Through research and contact with the locals it was discovered that this area had high aircraft activity. Aircraft also are known to land on the ice in the winter and on the water in the summer near the bridge. (Note: See slide 7 for the explanation of the Surfaces and Slope Ratios)

20 What is the Cost? 20 Temporary, construction activities – Day marking, 3’x3’ flag @ $25.00 (plus cost of installation and maintenance) – Night marking, steady or slow flashing red beacon @ $45.00 (plus cost of installation and maintenance) Permanent – May require red light night markings and/or white strobe day markings – Number of lamps are dependent on height, width and length of structure – Cost from a few hundred to tens of thousands of $’s

21 21 NYSDOT Questions, Comments on Topic, see contact info below. Ed Buckley, Aviation Bureau ebuckley@dot.state.ny.dot 518-457-8440 Note: If you need help with the analysis or would like us to complete it for you, the Aviation Bureau would complete the investigation for you on a case by case basis. Also if any of the Regions need additional copies of our Airport Directory, please ask and we will send some to you.


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