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This project consisted of water main replacement on St. Paul Avenue from Benson Road to 39th Street North in Sioux Falls, South Dakota. Work included water main replacement, sanitary manhole repair, replacement of surfacing over trenches, and boulevard restoration. The water main replacement successfully utilized both open trenching and directional drilling methods. Sanitary manhole repair included reconstructing manhole benches and inverts along with installing manhole external frame seals.
This project consisted of installing 8” water main beginning approximately 1,700 feet southwest of the Great Bear entrance road and continuing 3,700 feet to the northeast. This project included water main installation, asphalt removal and replacement, and site restoration and grading. Also included in this project was the grading and paving for a turn lane approximately 600 feet long on Rice Street for the proposed TJN site.
This project consisted of approximately 2,200 feet of 6” and 8” water main replacement along with 1,400 feet of 8” sewer replacement. Also included with this project were street drainage improvements as well as the installation of ADA sidewalk ramps at 11th Street and Garfield Avenue.
This project consisted of 4,200 L.F. of street improvements on 15th Street (Clark Avenue to Garfield Avenue), Garfield Avenue (15th Street to 12th Street), and State Avenue (Thresher Drive to 12th Street). Also included in this project were 4,400 feet of water main, 2,000 feet of sanitary sewer, and two directionally drilled river crossings approximately 350 feet each. Street paving on 15th Street and Garfield Avenue was with 9″ concrete, with asphalt concrete paving used on State Avenue and at intersecting street tie-ins. ADA accessible sidewalks were also installed on this project for safe access to the middle school and high school.
To improve the quality of the downtown shopping experience and encourage continued retail growth and reinvestment in the downtown area, the City of Orange City adopted a long-term plan to replace the streets in the downtown business and government district (city hall, county courthouse and other county offices). DGR Engineering was selected under separate engineering agreements to provide survey design and construction services for these projects.
Most areas of the downtown streets are 63 feet wide with one lane of traffic in each direction with diagonal parking in front of the businesses on each side. The entire width of all streets was reconstructed with new pavement. New sidewalks with decorative concrete paver inserts were installed along all sections of Central Avenue and portions of 2nd Street NW and NE. Most existing street trees along Central Avenue were retained with tree grates installed in the new sidewalk and brick pavers.
Existing water main and water services were replaced along most street segments along with sanitary sewer and storm sewer improvements as needed. Existing street lights were removed and refurbished, then reinstalled on new concrete footings with decorative shrouds at the base. Centerline and gutter line street grades on Central Avenue were adjusted to match grades of existing store fronts on each side of the street, while maintaining proper drainage in the gutter.
Where diagonal parking was present on side streets, the street section and grades where modified to move the storm drainage from the middle of the parking stalls to a gutter section at the back of the parking stalls, thereby allowing shoppers to exit their vehicle and get to the sidewalk without stepping into gutter.
DGR and the city worked closely with the business owners in the design phase to determine the desired look of the completed project and to incorporate business access into the construction phasing plans.