Runway 7-25 Obstruction Removal Project

AIP-47 49, 1950


AIP-32 contained an effort to provide detailed mapping of obstructions to those Federal Aviation Administration (FAA) Regulations Part 77 surfaces, which can be removed by the airport. The mapping found significant tree obstructions northeast, southeast, southwest, and a number of smaller areas northwest of the airport. A large part of these areas are off-airport.

However, a number of areas are on-airport and need to be cleared so the Airport remains in compliance with FAA grant assurance requirements.
Runway 7-25 Obstruction Removal Project (AIP-47)
This project is part of the obstruction and hazard removal project entailing removal of 34 acres of trees between Poverty Lane and Runway 7-25. Better understand details of the project by viewing pictures and maps.

AIP-47: Beacon Installation - Removal of Obstruction Lights


The AIP-47 portion includes the design of the following four construction packages and construction of the first package:
  • Package 1 to include installation of stormwater control improvement Best Management Practices (BMPs) due to increased run-off from changing forested land to scrub shrub and meadow land. This project will be combined with a separately funded drainage swale repair project.
  • Package 2 to include installation of the L-864 hazard beacons and removal of the existing L-810 obstruction lights.
  • Package 3 to include grubbing the new fence line, installation of new fence and gates and the removal of existing fence.
  • Package 4 to include grubbing of the remaining upland areas and grinding of stumps in wetland areas.
Of the $572,100 total cost; AIP-47 is funded $519,400 (90%) by FAA, $14,300 (2.5%) by New Hampshire Department of Transportation and $42,900 (7.5%) by the City, with the City share being reimbursed by airport-generated Passenger Facility Charge revenue. The project should be completed by Fall 2015.

Related Information:

AIP-49


The AIP-49 portion includes an Environmental Assessment (EA), permitting, and mitigation for the obstruction removal project:
  • Environmental Assessment
  • Wetland Delineation (13 acres) and data not collected in previous efforts
  • Preparation of Draft EA Sections
  • Standard NEPA EA sections
  • Affected Environment section to focus on Biotic Resources, Wetlands, Water Quality, Noise Environment, and Light Emissions and Visual Settings
  • Environmental Consequences section to focus on Biotic Resources, Wetlands, Water Quality, Noise (aircraft ground noise modeling), Light Emissions and Visual Impacts, and Construction Impacts
  • Preliminary Draft EA, Draft EA, and Final EA Preparation and Distribution

Permitting


  • NHDES Major Wetland Impact Wetland Permit. Required because project will involve more than 20,000 square feet of impact. Work will focus on abutter notification, project graphics and plans, vernal pool survey and report and review of NHDES stream crossing rules and mitigation rules.
  • US Army Corps Of Engineers Individual Permit. Required as the project is expected to involve secondary impacts to seven acres of wetlands.
  • In addition to the NHDES permitting, the Corps Individual permit will require an alternatives analysis and calculation of fill volume.

Mitigation


The agreed-upon mitigation includes:
  • Providing $119,708 in funds to the Upper Valley Land Trust so the Trust can purchase 34 acres near Rix Ledges off Etna Road in Lebanon and then maintain a conservation easement.
  • Providing $130,092 to the Corps Of Engineers Aquatics Resource Management fund for conservation projects in the same watershed.
Of the $477,880 total cost; AIP-49 is funded $430,100 (90%) by FAA, $23,890 (5%) by NHDOT, and $23,890 (5%) by the City, with the City share being reimbursed by airport-generated Passenger Facility Charge revenue. The project should be completed by Fall 2015.


AIP-50


This project is construction of the stormwater structures to maintain (not increase) stormwater flows from the obstruction removal

Of the estimated $385,850 total cost; AIP-50 would be funded $346,820 (90%) by FAA, $19,515 (5%) by NHDOT, and $19,515 (5%) by the City, with the City share being reimbursed by airport-generated Passenger Facility Charge revenue. The project should be completed by Fall 2015.

Non-Federal Obstruction Removal


After completion of projects AIP-47, -49, and -50, the obstructions (trees) would be removed. Obstruction removal would be bid with the bidder specifying the cost of removal and the market value of the timber received, and would then pay the airport the net difference. This project has not been bid yet but will be done winter 2015 and 2016.

Fence, Grind Wetlands & Grub Uplands


The last potion of the obstruction removal project, after the obstructions are removed would be to relocate the security fence to the new tree line; in wetland areas grind remaining stumps close to the ground (to be maintained by hand), and in upland areas grub areas (smooth out terrain) to allow mechanized maintenance.

This portion of the project is not bid yet; but of the $430,300 total cost, the project would be funded $387,300 (90%) by FAA, $21,515 (5%) by NHDOT, and $21,515 (5%) by the City, with the City share being reimbursed by airport-generated Passenger Facility Charge revenue. The project should be completed by Fall 2016.