Finding Extra Capacity in Boston's Sewer Interceptor System: System-Wide Hydraulic Modeling, Optimization and Cost Effectiveness Analysis
Wet weather flows from combined sewer areas stress Boston's sewer collection system and often cause combined sewer overflow to the Boston Harbor. Federal permits regulate frequency and volume of these overflows in order to maintain the water quality standards in Boston Harbor. System-wide hydraulic analysis was performed to evaluate the feasibility of reducing overflow from the Lower Dorchester Brook Sewer area through system optimization by attenuating peak wet weather flows within Boston's sewer interceptor system. The hydrological/hydraulic modeling results show that the combined sewer overflow frequencies and volumes could be reduced by moving the existing regulator from the New Boston Main Interceptor to the Boston Main Interceptor and separating the area in between. Cost-effectiveness analysis was conducted to screen the proposed alternatives for optimum uses of the public funding.
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Document Type: Research Article
Publication date: 2008-01-01
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