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~ utiJ.i.zat:ia1 san Marc:x>s Municipal Airport presently has four operational runways, all in excess of 5,000 feet in length. Because of the nature of the airport operational profile and the character of anticipated future traffic, all four runways are not essential to airport operations. Based upon recent aircraft traffic counts, the present and future rmlWay utilizatioo is as follows: n.ble 3.3 ~ AlII) PROJBCTBD RORWAY t1fiLIZATIOR, SAW MARCOS MURI:CIPAL AJ..l4ua.., 1985 Runway 12-30 17-35 04-22 08-26 1985 68% 3% 22% 7% 2005 70% 3% 20% 7% cnly three runways are essential at San Marcos and it is conceivable that either Runways 04-22 or 17-35 could be closed to future traffic. If this were done, however, there would be shifts in runway utilizatioo to the remaininq runways. Although it appears that Runway 08-26 should be a logical candidate far closure, there are times when crosswind capability, particularly during periods of stralq easterly winds, is essential. For this reason it is reoammended that Runway 08-26 remain operational. However, it should be noted that the condition of the runway is deteriorating rapidly, and major repairs will be needed to keep the runway in service. Runway 17-35 could also be considered as a candidate for closure, and should that occur considerable land would be opened up. In addition, there is the potential for savings in runway maintenance and the oosts associated with future improvements. The low utilization of Runway 17-35 is due, in large measure, to extremely poor runway surface oondition1 if the runway was improved, some additional use would likely occur due to prevailing wind coverage. However, the cost versus benefit would be very high because of the availability of other runways. Runway 04-22 is considered to be essential for long-term airport development due to the nearly 90% wind coverage (15 mph) of the runway. It is also essential due to strong southwestern crosswind components occurring much of the time. 3.4