Sioux City School District
Sioux City, IA
- Maximize usable space in a tight area with steep terrain (26.5 feet of elevation difference across the site)
- High level of project coordination with entities involved, included school, city, neighbors, architects, engineers, private utility companies and contractors to layout and complete a schedule for a multi-year, multi-stage project with three bid packages within a proposed budget
- Reconstruct surrounding streets during site work
Bid Package 1 (BP1) included building and site demolition, utilities and grading which included over-excavation and re-compaction of soils below proposed building footings and foundation, retaining walls and paving. Also during this time, Jennings Street, 31st Street and Jones Street, which were similar in age to the existing school, were reconstructed in a partnership agreement with the City of Sioux City. Along with street reconstruction, the utilities were replaced. A total of approximately 1,675 linear feet of street including four intersections plus 200 linear feet of relocated City alley through the site was replaced. Work on BP1 was completed in fall of 2017.
Bid Package 2 (BP2) was also completed in year 2016 in coordination with BP1 and included two site geothermal well fields totaling 230 wells at approximately 300 feet deep. The geothermal well field will heat and cool the new school and has been the practice with all the new elementary schools in Sioux City since 2007.
Finally, Bid Package 3 (BP3) included the building construction with remaining site work (final grading, sidewalks, fencing, etc.) adjacent to the building.
- Electrical Power
New Substation Construction
DGR assisted SMU in all aspects of the project, from initial evaluation, to design and financing, through final construction.
Turbine Control System Upgrade
The project included full removal and replacement of the existing control panels within the turbine building control room.
Building and site demolition, utilities and grading, two site geothermal well fields, site work
Sioux City, IA
Treatment Plant & Well Exploration
DGR Engineering (DGR) worked closely with OCRWS to design a new Water Treatment Plant to target iron and manganese removal from a shallow groundwater source near the site.
Fuel System, Terminal, Hangars
Design and construction services for support facilities at the new Sioux County Regional Airport.
Sioux County, IA