Myrtle Street Reconstruction
The Myrtle Street Reconstruction Project; A full reconstruction of water, sanitary sewer, storm sewer infrastructure, and new street and sidewalk paving. The project will be completed in two phases, starting in Spring 2020 and finishing in Fall 2021.
The Client
The City of Sioux City Engineering division accepted a bid of $6,697,000 from RP Constructors and CEC to complete the project. RP Constructors was named the prime contractor or general contractor, while CEC was hired as the construction staking subcontractor. JEO Consulting Group is the engineer designing the project.
What We Did
Myrtle Street is a residential street in one of Sioux City’s older residential neighborhoods. The road’s infrastructure had deteriorated, and most facilities had been there for 50 years or more. RP Constructors’ job was to complete a total reconstruction that included paving the road and replacing all the underground utilities. A client will commonly replace any underground utility piping, especially if it is old, before paving a new road.
RP Constructors understood access to both homes and businesses would be severely curtailed during construction. We phased the project and only did a portion at a time to reduce the inconvenience to area residents. Since the project was so close to homes, we placed additional fencing, at our expense, to keep the public safe during construction. RP Constructors relied on its project management and coordination to accomplish these tasks as well as keep the project on schedule and ensure a quality result.
Services Provided
Underground utility replacement. This included sanitary sewer and services to the houses, water main and services to the house, storm sewers, and all associated structures with each.
Dirt work and excavation. The new roadway was narrower than the old one and at a lower elevation, requiring some earthwork.
Subgrade treatment. This area runs along Perry Creek, which affected the soil quality. Given the soil was insufficient for long-term performance, we treated the subgrade with Portland cement and placed a layer of rock on top to provide better long-term stability. We are also installed subdrain under the paving to drain trapped water. Water is the long-term enemy of concrete paving.
Concrete paving and new sidewalks. We utilized our slipform paver for the mainline (31-ft wide) concrete paving. New driveways and sidewalks were done by hand.
Construction survey for the project. The construction survey was done by CEC. CEC flew a drone to capture images of the project. These images were used for comparison of pre-and post-construction work. They also provided a good record of what the area looked like prior to construction beginning.
Erosion control and seeding.
The completed project will provide a long-term solution for the client. The area will not have to be touched for at least ten years.
Eventually, routine maintenance will occur, but the overall improvements will last more than 25 years, more likely 50 years or more.
