BOULDER OUTFALL - LINCOLN ST. & ABRIENDO AVE. INTERSECTION STORMWATER IMPROVEMENTS   

This intersection has an undersized storm sewer system that results in frequent flooding from moderate storm events. The project will consist of replacing the existing undersized storm sewer system with a larger capacity storm system in W. Abriendo Avenue from Lincoln Street to the storm system outfall at the Arkansas River along Boulder Avenue. Improvements will help mitigate frequent flooding events in this area and will include approximately 1,650 LF of 60” storm sewer, installation of new manholes, inlets, laterals, water quality and open channel improvements.

 Aerial Exhibit of Project

29TH STREET PHASE 1 & PHASE 2 STORM SEWER IMPROVEMENTS 

This project consists of installing new drainage improvements in West 29th St. between Adrian Ave. & Franklin Ave. and also channel improvements along Alabama Ave. between 23rd St. & 29th St.   Currently, flooding causes erosion of private property.  The proposed improvements will alleviate current flooding problems in this area and thus improve water quality.

Aerial Exhibit of Project Site W 29th Street Construction Documents

Alabama Channel Construction Documents Final Drainage Report

SUMMIT AVENUE OUTFALL - STORMWATER REPLACEMENT

This area has experienced significant flooding over the years. The existing Stormwater system lacks the capacity to handle even a small rain event, and property has been damaged due to the undersized Stormwater System. The flooding has often occured during the Colorado State Fair event and affects travel around the fairgrounds. The project will include a detailed drainage analysis and Stormwater upgrades that will be accomplished in at least 3 phases. 

Phase 1: Will include a detailed drainage analysis and Stormwater upgrades on outfall and Washington Street.

Phase 2: Will include Stormwater upgrades on Routt Avenue and Madison Street. 

Phase 3: Will include Stormwater upgrades on Summit Avenue up to the Colorado State Fairgrounds.