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AIRPORT MASTER PLAN <br />operations in a variety of wind conditions is a significant positive attribute of the <br />San Marcos Regional Airport. <br />R UNWAY 13/31 <br />Runway 13/31 is the primary runway at the San Marcos Regional Airport, and it is <br />equipped with an Instrument Landing System (ILS), which provides Runway 13 with <br />lower visibility minimums than any of the other runway end at the airport. Runway <br />13/31 is considered a C-II-2,400 runway under current FAA runway design <br />standards. <br />Runway 13/31 is 5,601 feet in length and 100 feet in width. The runway is <br />constructed of asphalt and is in good condition. According to the Pavement <br />Structural Capacity Evaluation performed by Fugro USA Land, Inc. the weight <br />bearing capacity for the runway is 23,000 lbs. single wheel. The most recent major <br />runway rehabilitation project was completed in 2017. Runway 13/31 intersects <br />Runway 8/26 (approximately 2,565 feet from the threshold of Runway 13) and <br />intersects the Runway Safety Area (RSA) associated with Runway 17/35 that extends <br />300 ft. south of the threshold for Runway 35. <br />Runway 13 is equipped with an ILS system (glideslope and localizer) that is owned <br />and maintained by the Federal Aviation Administration. Both the glideslope and the <br />localizer appear to be in good condition. In addition to the ILS, an RNAV/GPS <br />approach exist to Runway 13 and Runway 31.The Runway Protection Zones (RPZ) <br />at the approach end of Runway 13 and Runway 31 protrude off airport property. <br />Runway 13/31 is equipped with Medium Intensity Runway Edge Lights (MIRLs), as <br />well as a two-box Precision Approach Path Indicator (PAPI) system for each runway <br />O <br />end. Both PAPI systems are set to a standard 3glide slope angle. Additionally, <br />Runway 13 is equipped with a 1,400 feet Medium-Intensity Approach Light System <br />with Runway Alignment Indicator Lights (MALSR). The MALSR is owned and <br />maintained by the FAA. In general, the runway edge lights, PAPIs, and MALSR are in <br />good condition. However, an issue exists with the power supply for the Runway <br />Alignment Indicator Lights (RAILs) associated with the MALSR system. <br />Consequently, the RAILs on the MALSR system are out of service and are expected <br />to remain out of service in the near future due to the cost related to correcting the <br />issue. The suspected cause of this issue is the consistent ponding that occurs south <br />of TX-21 close to the airport fence line at the approach of Runway 13. During rain <br />Inventory Chapter Page 10 of 52 <br />October 2020 <br /> <br />