This project was a 2.5-mile mill and fill job completed during the night. Scope of work called for a 3-inch deep rotomill, and a 1.5-inch deep pave back of PG 64-34 HMA using a spray paver. Then, the spray paver did a 1.5-inch-deep overlay of a PG 70-28 SMA. This project was one of the first jobs where Staker Parson Materials & Construction and UDOT used a spray paver. The team used rapid set utility collars and placed nine pedestrian access ramps. They also placed new signage and grooved-in all pavement markings.

Staker Parson Materials & Construction had to use a different Material Transfer Vehicle (MTV) because of the spray paver. The current MTVs barely reached the hopper of the spray paver, which created a situation where the paver and the MTV could run into each other during operations. To prevent a collision during paving, the team bought a new Roadtec MTV with the technology to communicate with the paver and ensure the two pieces of equipment traveled at similar speeds.

The spray paver and MTV demanded additional planning and changes to the paving plan. For example, the team had to change from a CQS-1H tack to a PMEM. The team coordinated with a new tack oil vendor and changed how they haul and store tack with their oil distributors or on-site tank.

This job was built during the height of the paving season when getting trucks were in high demand. The team had difficulties finding enough trucks to staff the job and effectively haul the RAP and HMA/SMA. The team did a fantastic job finding backhauling opportunities or property owners along the job route who could take the RAP from them. Although trucking issues persisted, the team successfully planned and communicated to solve them