Gold Award – Meridian Boulevard Phase 1
Contractor: Castle Rock Construction Company*
Owner/ Engineer: Douglas County Public Works
Meridian Boulevard in Douglas County, Colo., was built in the early 1980s with a design life of 20 years. After nearly 40 years of service, the road was exhibiting materials-related distress and scheduled for reconstruction.
The section scheduled for reconstruction is directly in front of Dish Network Corporation’s headquarters office, a location that has over 2,000 cars entering and leaving the facility each weekday. In addition to high traffic volume at the construction site, tight space constraints, and requirements to protect existing landscaping, a 90 calendar-day schedule added to the complexity of the project.
A significant amount of subgrade restoration was required in the 0.71-mile project designed to expand the road to four lanes. Soft spots were removed and replaced with recycled concrete road base. 30,100 SY of concrete were placed to complete the 3.51 lane mile project.
Environmentally friendly strategies employed in the project included:
- The cement was a 10% limestone replacement which lowers the release of carbon monoxide from cement production by 10%, which lowers the carbon footprint;
- Use of fly ash, an industrial by-product from coal burning power plants, was used to stabilize the concrete; and
- Concrete from the original road was crushed and used as road base for the new pavement.
In spite of an early season snow, traffic volume and measures to protect existing landscaping, the project was completed 20 days ahead of schedule and will provide DISH Network employees, visitors and area travelers with a long-lasting roadway capable of handling the rigors of traffic, while also factoring in important environmental considerations.
* ACPA member.