When they met Tuesday, Leavenworth city commissioners approved bids for several public works projects.

When they met Tuesday, Leavenworth city commissioners approved bids for several public works projects.

Commissioners approved a $100,310 bid from Affinis Corporation, Overland Park, for design work for various pavement projects.

Public Works Director Mike McDonald said the design work will start soon. But the pavement projects will not be carried out until 2018.

The projects will include the resurfacing of various roads using a granite seal process and mill and overlay work for other roadways. The projects also will include improvements to a city-owned parking lot in the 500 block of Cherokee Street.

McDonald said city officials anticipate the cost of the pavement projects to total about $1.3 million.

Also Tuesday, commissioners approved a design contract with George Butler Associates, Lenexa, for a sanitary sewer inflow and infiltration project.

The city will pay George Butler Associates $44,950 for the design work.

McDonald said the inflow and infiltration project will be a continuation of efforts to reduce the amount of water, such as rain water, that ends up in the city's sanitary sewer system even though it is not supposed to drain into the sewer system.

Once in the sanitary sewer system, the water gets treated at the city's Wastewater Treatment Plant.

"It overloads the treatment plant," McDonald said.

Construction for the inflow and infiltration will take place in 2018. McDonald said the construction costs may be between $350,000 and $500,000.

Commissioners also approved the purchase of 480 low pressure, high volume ultraviolet lamps to be used at the city's Wastewater Treatment Plant. The lamps will be used in a disinfection system.

The total cost of the the purchase is $62,446. McDonald said this price also includes the purchase of supplies.

By making the purchase now, the city will be able to obtain the replacement lamps before their price increases.

McDonald said this should save the city about $20,000.

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