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. ,~ " . . . ~ ~~ illv"" '. 'facilities, and, rural businesses. There are about 16 miles of the Federal highway system, about 30 miles of State roads, and 100 miles of county and other roads subject to damage. A total of 21 highway bridges, including 5 in the city of Pueblo, are located in the flood plain. Approximately 40 miles of AT&SF, Missouri Pacific, and Denver and Rio Grande railroads and 6 bridges are subject to inundation, scour, and damage from debris. Power and telephone lines and appurtenant structures such as switch yards are also subject, to flood damage. " 72. Urban developments along the Arkansas River between Pueblo and John Martin Dam are generally located above the flood plain. How- ever, serious flood problems exist in the major municipalities of Pueblo, La Junta, and Las Animas. 73. The city of Pueblo is provided a high degree of protection from floods on Arkansas River, by the Barrier Dam-Pueblo Floodway proj- ect constructed by local interests in 1925 and extended by the Corps ox Engine.ersin 1952. An area of about 3 square miles containing millions of dollars of commercial and industrial development is pro- tected by the improvement. However, the city is subject to flooding from Dry Creek and Fountain Creek, tributaries of the Arkansas from the north. 74. The Arkansas River flood plain encompasses about 330 acres of the urban and 'suburban area of La Junta located about 70 miles down- stream from Pueblo. North La Junta, a suburban area on the north side of the river, is the most vulnerable to flood damage. About 250 resi- ",dences ,a few neighborhood businesses, a school, and a church are located in a frequently flooded portion of the flood plain. Most of the commercial and urban developments are located on the south side of the river in the city of La Junta. Although the area subject to flooding from the Arkansas River in La Junta is smaller than in North La Junta, it 'contains a larger number of commercial installations in- cluding 10 business units and about 50 residences. La Junta also 'has 'a significant flood problem from King and Anderson Arroyos. 75. The area subject to flooding by the Arkansas River at Las Animas includes about 740 acres or urban and suburban lands. Improve- ments include about 1,050 residential units, 150 business units located mostly in the main business district, schools, churches, public buildings, and utility plants. Although the authorized Las Animas Local Protection Project will provide a high degree of protection, the city is still subject to inundation from infrequent large magnitude floods, All of the city would be inundated by a flood of standard project magnitude, except 10 to 15 blocks in the west-central section which would be isolated. 76. NATURE OF FLOOD DAMAGES.- Principal losses from Arkansas River floods upstream from John Martin Dam are the result of inundation, 27