A $6 million street improvement project on the south side of Mandan is expected to begin later this month, following the city commission’s recent awarding of bids to Mariner Construction.

The Southside Street Improvement Project includes the reconstruction of roadways, curb and gutter repairs, sidewalk improvements to ensure ADA compliance and storm sewer improvements.

The special assessment district lies roughly within the confines of First Avenue Southwest to 13th Avenue Southwest and First Street Southwest to Seventh Street Southwest. In addition to residential property, the district includes land owned by the city, school district, railroad, water resource district and park district.

The commission decided earlier this year that protests by landowners due to the proposed high special assessments were “insufficient” at just under 13%.

There were six parts to the project’s base bid and five additional alternate components. The commission selected three alternates with which to move forward: use of a cement stabilized base rather than the traditional gravel base, installation of a downsized storm sewer and the resurfacing of alleys.

The commission recently designated $1.5 million in Operation Prairie Dog funds toward the project.

The average property could see an assessment of about 35% less than the amount specified in notice letters distributed in December, according to city officials.

The project is expected to be “substantially” completed by the end of this year’s construction season.

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Reach Cheryl McCormack at 701-250-8264 or cheryl.mccormack@bismarcktribune.com.