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199B. Colorado Flood Hazard Mitigation PI.n (4091 and multi-family homes built in these counties are inspected by DOH. In addition, the division offers a consumer information service for owners of manufactured and factory-built housing. The division serves as the consumer com- plaint contact for manufactured housing units built under the HUD Manufactured Housing Code. DOH answers questions or resolves complaints through its knowledge of factory-built housing and its rapport with manufacturers. 3.2.1.3.6 Division of Property Taxation The Division of Property Taxation (OPT) coordinates and administers the implementation of property tax law throughout the 63 counties. It operates under the leadership of the property tax administrator, who is appointed by the State Board of Equalization (SBOE). 3.2.1.4 Department of Public Safety 3.2.1.4.1 Colorado S1ate Patrol The role of the State Patrol in flood hazard mitigation is in effect during flood emergencies. The jurisdiction of the State Patrol is mostly traffic. In flood emergen- cies the first aspect of traffic control wouid be to get people out of danger, whether by vehicle or on foot. The State Patrol relies on its local people in the field, including the dispatchers, to determine that there is an emergency and then to take action immediately. There I are numerous dispatch centers throughout the state. , In emergency situations the local commanding officers can make decisions on what to do. Sometimes local offICials (police chiefs, fire chiefs, and mayors) will call OEM requesting State Patrol and other state assis- tance. Before a flood happens or as it sterts, the intent is to move peopie out of hazardous areas and keep other people from entering those areas. Once a flood is in progress, or has oocurred, the State Patrol's main function is to set up a command post for the disaster area. Working in concert with the OEM, the State Palrcl can esteblish and manage these posts where communications are handled. An important function of the state Palrclls to assist in providing traffic control and security in flood damaged areas, limiting the movement of sightseers and non- essential personnel in the interests of preserving pub- lic health, safety and welfare. The State Patroi assists in identifying victims and in keeping lists of missing persons in floods. This includes handling telephone calls from all over the oountry. In the case of the Big Thompson flood this function was carried out by the Denver Communica- ~.pub Chapter 3 . 12 tions Center. The Patrol's auto theft unit aids in recov- ery and identification of flood damaged motor vehi- cles. I 3.2.1.5 Colorado Department of Transportation The Colorado Department of Transportation (CDOT) is invoived in the design and construction of highways throughout the state, frequently in river valleys, so it is lone state agency that is tamiliarwith floodplain issues. Additionally, federal requirements tied to federal fund- ing of highway projects have dictated that floodplain i considerations enter into the highway design process. Most Highways'in Colorado are Classified into Two Categories: 1. Federally funded highways, and 2. Federal aid designated highways. Criteria, policies, and methodologies used by the COOT to design highways in floodplains are discussed below: For interstate highways, U.S. highways, and Colorado highways in urban areas, the 100-year flood is the design standard. For interstate highways outside of urban areas, the 50-year flood is the design standard. For U.S. highways and Colorado highways in rural areas, design is based on the 25-year flood or less. What discharge is used depends on a benefrtlcost analysis, which oonsiders two major factors: (a) Interruption of highway service, and (b) safety to users during a flood event. In addition, the consequences of the 100-year flood are analyzed. All of the above enter into the design of bridges, culverts, and the highways themselves. The methodologies, including computer models, used to calculate flows are all described in the Departmenfs Design Standards. These include Natural Resources Conservation Services (NRCS) methodology, USGS Methodology for small basins, and others. CDOT uses flood histories as available. When floods occur, photographs are taken and report forms are filled out. The Hydraulic Unit in Denver signs off on all projects throughout Colorado. They review any existing work by other agencies, such as the Colorado Water Con- servation Board fIoodpiain studies, and perform any : I additional work necessary to design structures in the floodplain, which minimize damages. The analysis is I a two-step process. First, a location analysis is done. This includes public involvement and is intended as a 1/28191l10:51 PM