The purpose of the Maple Avenue Relief Sewer is to add additional capacity to the existing sewer system to address flooding in areas tributary to the Maple Avenue Sewer. The MARS project involves the construction of a relief sewer along Maple Avenue from Bluff Avenue to Peck Avenue. The sewer pipe will range from 60 inches in diameter at Bluff to 24 inches at Peck. The relief sewer will intercept drainage from the existing combination sewers, providing relief for the existing Cossitt Avenue sewer. At Bluff Avenue, the relief sewer will redirect dry weather sanitary flow to the sanitary outlet in East Avenue and divert wet weather storm flow to the deep tunnel outlet.