This paper has been prepared, taking into account all · fundamental aspects of disasters which includes the province of Lamas, why it has seen fit to divide it into two parts; the first framing all the theoretical process of Risk Analysis 1 and Province Second it is showing the physical part of that analysis through a Civil Works project. The development models implemented by history in the province of Lamas, respond more to strategies and requirements extraprovincial stop the development of each community and increasing conditions Vulnerability. Thus you can see that the province capital is completely disjointed in their districts. This reality prompted to perform a study of risk analysis for prevention and mitigation Natural effects like El Niño. For Risk Analysis (Part One) we start from the analysis of the Threats identified from the inventory of historical disasters, · obtained t...