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Few cars are seen parked on the 500 Block of Main Street around noon in Longmont on March 17, 2020. Work is set to begin at Main and 17th soon. (Matthew Jonas/Staff Photographer)
Few cars are seen parked on the 500 Block of Main Street around noon in Longmont on March 17, 2020. Work is set to begin at Main and 17th soon. (Matthew Jonas/Staff Photographer)
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Work to improve Longmont storm sewer drainage along 17th Avenue east of Main Street and along both sides of Main north of 17th is scheduled to begin Thursday, city officials announced in a Tuesday news release.

The project to replace aging storm sewer infrastructure and add additional storm drain inlets is expected to continue through early September.

Officials said a full closure of 17th east of Main is planned beginning April 29, while a deep manhole is added to facilitate the improvement work. That closure is expected to last through May 10, but could be extended depending on weather and underground conditions.

Longmont recommends using Collyer Street as a detour around that work zone. Area businesses may be accessed from their Main Street entrances.

After that full intersection closure, travelers can expect continued closures of the right lanes of northbound Main and westbound 17th throughout the project while crews install the additional storm sewer system, officials said. Project work will generally take place during daytime hours on weekdays.

“We expect this project to relieve some existing drainage issues encountered along 17th Avenue and Main Street north of 17th Avenue after large storms,” said Allan Bryning, a city senior civil engineer.

The $1.3 million storm drainage capital improvement project is to be completed by E-Z Excavating, Inc., of Frederick.

Storm drainage projects such as this one are paid for out of the City of Longmont’s Storm Drainage Fund, which is financed by monthly residential and business stormwater rates.

People can direct questions about the project to the Public Works and Natural Resources Department Customer Service Center at 303-651-8416.

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