Municipal infrastructure engineering is an essential component for maintenance and growth of our towns, cities, counties and regions. The population of any area depends on its infrastructure to live, work, and play. Keeping up with infrastructure maintenance and expansion is a constant challenge. Maintaining and building sustainable public infrastructure requires planning, design, and a construction process that considers a series of social, economic, technological and environmental issues. When all of these issues are handled effectively, municipal infrastructure projects achieve their greatest success. Banner will guide you through the early permitting phases and complete the project with in-house civil engineering, design, bidding, and construction management. Our staff handles public projects on a day-to-day basis, and has extensive experience in dealing with contractors, municipalities, and regulators.
Viborg Utility Improvements Viborg, SD
The City of Viborg completed improvements to their water distribution system and sanitary sewer collection system on various streets throughout the community. Water main replacement included replacing undersized and aging water mains along with the abandonment of an existing water main located under City Hall. The City also improved isolation zones within the distribution network with the addition of water valves in key locations. Sanitary sewer collection system improvements corrected inflow and infiltration (I/I) issues in the system. Street reconstruction was also completed as part of the project. Banner also assisted the City in preparing facility plans that were used to secure funding for the project.
Colton Main Avenue & First Street Utility Improvements Colton, SD
The City of Colton set out to improve the existing infrastructure under two vital county roads that intersect in their community. Undersized, cast-iron water main and vitrified clay pipe under Minnehaha County Routes 110 and 149 were in desperate need of replacement. In addition, the City did not have a sufficient water main loop to provide the necessary flows in the event of a fire. The geotechnical investigation revealed that the soils in Colton were low strength and unstable and thus recommended that all utility trench backfill be replaced and that sub-grade improvements be considered to extend the life of the roadway for two roads that carry significant agricultural and truck traffic. Banner assisted in determining the most effective sub-grade treatment and found that soil cement stabilization was the most economical solution for the City. The project also implemented recycled materials. The existing surfacing and base course were processed-in-place to be reused as base course. This provided the City significant construction cost savings. Banner coordinated with SD DENR, BNSF Railroad, Minnehaha County, and the SD DOT to obtain the proper permits and approvals for the project. Special services Banner provided included assisting the City in procuring additional funding that was necessary for the trench and sub-grade improvements. Banner also held pre-construction public meetings to inform the public of the upcoming improvements and prepared monthly progress updates for public distribution.
8th Street & 20th Avenue Drainage Improvements Brookings, SD
The State Avenue Watershed is a 680 acre watershed in the heart of Brookings that affects residents, businesses, and college students during storm events. Included in the watershed are residential and commercial districts in addition to South Dakota State University. The City of Brookings, through their drainage master plan, identified 5 storm sewer improvement projects to mitigate localized flooding and handle 5-year and/or 100-year storm events within the watershed. Banner analyzed the existing watershed model and provided recommended improvements to the storm sewer system. Banner prepared cost estimates for the improvements to help the City budget for the improvements.
The first phase consisted of storm sewer improvements on 8th Street north of Village Square. Storm sewer was installed under the street and includes additional inlets to capture flow off the street. The system also allows for additional connections from Village Square. The structural department provided design of a special junction box to tie the proposed storm sewer into an existing box culvert crossing 8th Street. The project also improved pedestrian access by completing the sidewalk network with ADA pedestrian ramps at the intersection of 8th Street and 20th Avenue. The sidewalk network is also connected to the trail that runs through McCrory Gardens. Banner provided design and construction phase services for the first phase of this significant drainage project.
Sanitary Sewer System CIPP Improvements Lake Norden, SD
The City of Lake Norden was experiencing high inflow and infiltration in its sanitary sewer system due to cracks and leaking joints in old, deteriorated clay tile sewer. During the Facility Planning process, the Cured-In-Place-Pipe (CIPP) method was recommended for sewer repairs to save the City money. The CIPP method greatly reduces the amount digging and street restoration required. CIPP involves inserting a resin-saturated felt liner into existing sewer pipes. Heated water or steam is forced into the liner, pushing it tightly against the existing pipe wall and causing the resin to harden. The cured liner creates a new pipe within the existing sewer pipe that is free of cracks and holes. The project also included partial lining of sewer services and repairs to deteriorated manholes. Project funding was provided with a $515,000 Community Development Block Grant and an $812,000 State Revolving Fund loan.