City of Sioux City, Kinseth Hospitality
Sioux City, IA
- Rerouting City public utilities to allow for proposed development along with street reconstruction
- Multiple adjoining projects at different elevations that required coordination between projects within the design
- Site constraints being an existing fully developed portion of the city with up to 30 feet of elevation difference in across the site
- Project coordination with different entities involved
- Utility relocations
- Collaboration with landscape architect
Sioux City Projects Require
Careful Design Coordination
Three downtown Sioux City projects were located in the City’s reinvestment district. The district received financial assistance from the state for these type of improvements. Projects included were the following: the expansion of the existing convention center, construction of a 150-room hotel, as well as construction of a 140-space parking deck. DGR Engineering (DGR) worked under the project architect, Ramaker and Associates, for the convention center addition and proposed hotel. DGR worked for the City on the parking deck project. The parking project also included sidewalk reconstruction and driveways within the City right-of-way to allow for the proposed parking deck being designed by Ramaker and Associates.
Project site area consisted of two existing City-owned surface-grade parking lots at two different levels that served the convention center, as well as the City’s Historic 4th Street and Promenade areas. The proposed design included construction of a hotel that would be connected to the convention center, convention center addition, patio areas, limited on-grade parking, as well as a new parking deck to provide parking for hotel guests and 4th Street visitors.
The existing parking lot had public water main, storm and sanitary sewers that were in conflict with the proposed new building footprint. These were relocated to Virginia Street, which required increasing storm sewer sizing per design models. This larger size would allow for the increased distance of proposed system, where little elevation existed within the system.
Placement of the proposed hotel and driveways were based upon simulated truck movements to maintain usage of the existing convention center truck docks off Virginia Street. Portions of 4th Street and Virginia Street were reconstructed to accommodate the proposed hotel.
Elevation constraints of the proposed site (30 feet of elevation difference across the site) and matching the existing elevation of the convention center wouldn’t allow for the typical common main level finished floor elevation of the proposed hotel. Exterior elevation at doorways were variable to account for drainage and ADA accessibility, which required coordination with the project architect to construct interior ramps and a finished floor with several different elevations within the hotel.
The projects also required vacating half a block of alley to gain site area and access between the hotel and parking deck. Alley vacation required coordination with private utility owners for relocation of infrastructure.
DGR worked with a Landscape Architect to finish the area with plants and landscape boulders. Retaining walls and the parking deck structure were used to break up the elevation and create more usable site area.
- Electrical Power
The City of Sioux City needed a large diameter trunk sewer to carry flows from new residential development and future development on the east side of town to the existing Southeast Morningside Lift Station.
Sioux City, IA
Street Lighting Improvements
The City replaced the old lighting system with a modern LED based system to reduce operating cost. Decorative style lighting units were used, which enhanced the aesthetics of the downtown area, and match what had been utilized in other parts of the city.
Pump Station & Storage Reservoirs
The new Edgerton Pump Station (EPS) was constructed to facilitate bringing purchased water from Lewis & Clark Regional Water System (L&C) to the LPRW system.
Box Culvert Bridge Replacement
DGR Engineering worked with the SWO and BIA staff to design an economically feasible replacement for the deficient bridge structure.
Northeast South Dakota
New Airport Development
DGR led the design and construction phase engineering for the development of a new $30 million airport. Tasks included all phases of design and construction engineering activities.
Sioux County, IA
Turbine Control System Upgrade
This project included full removal and replacement of the existing control panels within the turbine building control room.