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<br /> <br /> <br />City of Boulder library, <br />raised on reinforced <br />concrete piers, Boulder, <br />Colorado <br /> <br />In 1974, the City of Boulder constructed a public library <br />consisting of two buildings on opposite sides of Boulder Creek. <br />The buildings are connected by a covered walkway (Figure <br />A (6). The terrain is such that the walkway and portions of the <br />two buildings are raised 8 feet above the overbank on reinforced <br />concrete piers. Photos of the structure indicate that the floor is <br />made of reinforced concrete and the walls are precast. <br /> <br />The structure is both aesthetically pleasing and <br />environmentally sound. The obstruction of the flood way is <br />minimal. Flooding of Boulder Creek is of a flash nature, and <br />very little can be done to prepare for a flood event. The design of <br />the building requires literally no advance preparation. One <br />possible problem with the location of the library is that column <br />footings may be subject to erosion during severe floods due to <br />the high velocities that are possible. <br /> <br /> <br />Good landscaping shows harmony with the building. <br /> <br />Figure A16. Two-building library raised on reinforced concrete piers <br /> <br />38 <br />