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PART IV PROJECT NARRATIVE San Marcos Municipal Airport occupies an important place in the Central Texas system ot airports. It's prime location, at the midpoint between San Antonio and Austin, makes It uniquely situated to absorb an increasing share of general aviation activity in the region. In 1986, a full Instrument Landing System (ILS) was installed on the approach to Runway 12. The recently updated Airport Master Plan shows that the aircraft activity at San Marcos Municipal Airport is forecast to increase from the current 75,000 annual operations in 1987 to approximately 219,621 by the year 2005. In view of the Airport's geographic location and the increased level of activity projected for the airport, a major program of aviation facility preservation and Improvement focusing on the reconstruction of existing runways and taxiways has been ongoing during the past five years; focusing upon the FAA-funded reconstruction of Runway 12-30, the construction Of parallel taxiways, and the installation of precision instrument approach capabilities to Runway 12. With the completion of this runway Improvement, the City of San Marcos then received FAA participation in the restoration/reconstruction and lighting of Runway 08- 26, and one of the taxiways linking this runway to \he aircraft parking apron. This runway Is particularly for larger turboprop and jet aircraft; its 6,300' length pennits higher payloads and a greater margin of safety to be attained by these aircraft. With the imminent completion of the Runway 8-26 project, the City of San Marcos is now focusing upon and seeking FAA participation in improving the aircraft parking apron, providing emergency electrical power, and new medium intensity taxiway lighting as well as reconstructing the remaining taxiway "F". These improvements are listed below \n pr\or\\y order and are the princip1e items of this application for federal funds: 1. HMAC Overlay Existing Aircraft Parking Apron (Area 1). 2. HMAC Overlay Existing Aircraft Parking Apron (Area 2). 3. Reconstruct Taxiway "F". 4. New Emergency Generator. 5. New Medium Intensity Taxiway Lighting System. 6. HMAC Overlay Existing Aircraft Parking Apron (Area 3). 7. HMAC Overlay Existing Aircraft Parking Apron (Area 4). Item No.1 - HMAC Overlay Existing Aircraft Parking Apron (Area 1) Is necessary to protect the existing concrete apron from additional deterioration due to spawling and seepage of water through the cracks and joints in the concrete apron. This area of the apron is the primary aircraft parking for based and itinerant aircraft. Item No.2 - HMAC Overlay Existing Aircraft Parking Apron (Area 2) is necessary to protect the existing concrete apron from additional deterioration due to spalling and seepage of water through the cracks and joints in the concrete apron. This area of the apron will be utilized by aircraft related industry. Item No.3 - Reconstruct Existing Taxiway "F" is necessary to permit conti\1ued use of Taxiway "F" which connects Runways 8.26, 12.30 and 17-35 with the existing aircraft parking apron. Reconstruction Is also necessary to increase the strength to meet the new strengths of Runway 8-26 which Is 100,000 pounds. Taxiway "F" plays an important role of providing direct aircraft access to the Aircraft Parking Apron taxiway. Item No.4. New Emergency Generator is necessary to provide backup power to the ILS system and Runway Lighting Systems on Runways 8-26 and 12-30. It is important in light of San Marcos' "reliever" designation in the NPIAS.