Municipal Infrastructure

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. Aging and undersized sections of the water main were replaced, and the existing water main located under City Hall was abandoned. The City improved isolation zones within the distribution network with additional water valves installed 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.

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Kingswood Way Drainage Improvements (Phase 1)
Sioux Falls, SD

The City of Sioux Falls needed a solution to the Kingswood Way neighborhood street flooding that was occurring regularly since the 1970’s. Due to the area’s lack of underground storm sewer as well as the low elevations of some homes, the streets became inundated during heavy rains. Banner was selected to complete a storm sewer analysis and design storm sewer improvements that were in line with the City’s Engineering Design Standards along with watermain, street, and street lighting improvements. The first phase included underground storm sewer along Kingswood Way from 32nd Street down to 37th Street. Banner also provided construction administration and construction staking services for this project.

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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 critical 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: it was recommended that all utility trench backfill be replaced and subgrade improvements be considered to extend the life of the roadway for two roads that carry significant agricultural and truck traffic. Banner assisted in investigating effective subgrade treatment options, and determined soil cement stabilization was the most economical solution for the City. The project also implemented recycled and reused 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 SDDOT 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 subgrade improvements. Banner also held pre-construction public meetings to inform the public of the upcoming improvements and prepared monthly progress updates for public distribution.

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8th Street and 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. The watershed includes residential and commercial districts in addition to South Dakota State University. The City of Brookings, through their drainage master plan, identified five 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 added inlets to capture flow off the street. The system also allows for additional connections from Village Square. The Structural Department designed a specialized 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-compliant 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.

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Sanitary Sewer System CIPP Improvements
Lake Norden, SD

The City of Lake Norden was experiencing high inflow and infiltration (I/I) in its sanitary sewer system due to cracks and leaking joints in old and deteriorating clay-tile sewer. During the Facility Planning process, the Cured-In-Place-Pipe (CIPP) method was recommended as a cost-effective method for sewer repairs. The CIPP method greatly reduces the amount digging and street restoration required. The CIPP process involves inserting a resin-saturated felt liner into existing sewer pipes, which is then pressed tightly against the existing pipe wall with heated water or steam forced through the pipe. The resin hardens, and the cured liner creates a new pipe free of cracks and holes within the existing sewer pipe. 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.

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