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sa& Ports are in danger of becoming choke points in the trade boom. <br /> AIRPORTS Since 1970, annual tonnage moving through seaports has doubled <br /> to 1.3 billion. But facility improvements haven't kept up with that pace. <br /> One reason: Spending on security is diverting expansion funds. <br /> Meeting new legal requirements will cost $6.6 billion over 10 years. <br /> Through 2010, port authorities need to invest $2.4 billion a year <br /> on expansion and upgrading to avoid shipping delays. By that time, <br /> twice the number of cargo containers will have to be loaded and unloaded. <br /> Plus a new class of cargo ship means new facilities must be built <br /> to handle the behemoths. One-third larger than today's biggest ships, <br /> they' ll be steaming into many of the nation's 80 ports within five years. <br /> Exlstfng airports are expanding, out no new ones are planned. <br /> Congress recently gave the OK to streamline regs for airport growth, <br /> and new or lengthened runways are planned for Boston, Atlanta, Cleveland, <br /> Cincinnati, St. Louis and Minneapolis-St. Paul at a cost of $3.6 billion. <br /> They'll rely largely on boosting efficiency to relieve crowding <br /> when air travel recovers from its Sept. 11 dip, setting new records. <br /> A 10-year push to modernize air traffic control will bear fruit <br /> with a new radar system allowing controllers to handle more traffic <br /> and improved access to weather data for more-efficient routing of planes. <br /> Regional airports will pick up some flights. Start-up airlines <br /> and low-cost carriers are going to increase routes to smaller markets. <br /> WATER Many areas face supply woes: Old, leaky systems in some cities. <br /> In coastal towns, saltwater intrusion. And in high-growth areas, <br /> simply too few nearby supplies. The result: More desalination plants, <br /> water-saving appliances and use of treated wastewater for irrigation. <br /> That plus tighter quality and security regs mean higher costs. <br /> Average water bills will climb by 2%-3%, more a year than inflation. <br /> Managing storm water surges carries billion-dollar price tags <br /> for several U.S. cities, including Atlanta, Cincinnati, Detroit <br /> and Portland, Ore. They need separate facilities for storm water runoff <br /> to prevent rainwater from overwhelming sewage treatment plants. <br /> ENERGY Power shortages sap $200 billion from the economy every year. <br /> Fixing the problem will cost $100 billion over the next decade, <br /> half of it to modernize the country's power transmission system. <br /> The other half is necessary to build plants and improve old ones. <br /> In addition, new natural gas pipelines are needed to move more volume. <br /> New energy legislation should help attract more investment. <br /> When it gets the nod, probably next year, new rules will make it easier <br /> to buy, sell and transmit electricity and harder to block construction <br /> of transmission lines. The legislation will also offer tax incentives <br /> for construction of pipelines and ease siting approval for a pipeline <br /> from Alaska to the lower 48 states. But projects are sure to take years, <br /> and businesses needing reliable supplies will require backup systems. <br /> Upgrading infrastructure will add 1X a year to utility bills. <br /> DAMS From now to 2015, about $10 billion will be needed for repairs <br /> to the nation's dams, an increasing number of which are in danger <br /> of collapsing. This year, scores were declared unsafe, and 21 failed. <br /> The funds aren't likely to be forthcoming, barring a calamity <br /> resulting in loss of life. Current spending can't keep up with problems. <br /> Your subscription now includes THE KIPLINGER LETTER online at no additional cost <br />