Horrocks Engineers was selected as the winner of three separate ENR “Best Project” awards in the Intermountain Area (Utah, Montana, and Idaho) for Highways/Bridges, Landscape/Urban Development, and Small Project (Under $10 Million).
Highways/Bridges Best Project: St. George Boulevard Interchange at Milepost 8, St. George, Utah
This project focused on upgrading the traditional interchange at I-15 Milepost 8 into a Diverging Diamond Interchange (DDI), structure rehabilitation, and an inclusion of a pedestrian facility.
Horrocks designed the new intersection, widened the existing bridge over I-15 at St. George Blvd, reconfigured the existing Milepost 8 interchange into a Diverging Diamond Interchange, and widened the roadway to provide standard 12-foot lanes along with 10-foot shoulders. Horrocks was additionally responsible for performing signal coordination, right-of-way and utility coordination, maintenance of traffic (MOT) modeling, and maintenance of business access in each direction during construction.
This project was a part of the I-15; MP 0-16 Environmental Assessment (EA), and is the first priority project to receive funding. The study showed that the interchange, in its origional configuration, would have fail by 2040. The Preferred Alternative for the EA was to convert the existing diamond interchange to a Diverging Diamond Interchange (DDI) to accommodate the projected 2040 travel demand.
Landscape/Urban Development Best Project: Lions Park Transit Hub and Colorado River Pathway, Moab, Utah
The Lions Park Transit Hub and CRP Trail project is part of the Moab Canyon Pathway, a paved trail system that connects Moab to Arches National Park, Canyonlands National Park, and Dead Horse Point State Park. The completed development consists of one pedestrian tunnel, one pre-engineered restroom building, one shade structure, one pedestrian bridge, three elevated bridges, 12 retaining walls, a new section of trail, and a new transit hub.
The new section of pathway spans for two miles along the banks of the Colorado River and ranges in width from 8 – 12 feet. Certain areas along the river had very limited and sometimes insufficient space for trail placement. Rather than cut into the towering red-rock cliffs Moab is known for, Horrocks industrialized a unique solution to implement Accelerated Bridge Construction (ABC) techniques and raise the trail above the river bank using an elevated trail bridge system. This allowed for the preservation of the river, red-rock cliffs, and the existing road.
Small Project (Under $10 Million) Best Project: SH-44, Linder to Ballantyne Design-Build, Eagle, Idaho
The Central Paving/Horrocks Engineers Design-Build Team was successfully selected by the Idaho Transportation Department (ITD) to complete the SH-44, Linder Road to Ballantyne Lane project in Idaho. This is ITD’s first ever design-build project and Horrocks is proud to be involved in this historic undertaking. Drawing on Horrocks’ previous design-build experience, our team worked closely with ITD to help expand and develop their design-build program while meeting the Department’s project goals. This 1.75 mile project reconstructed the intersection of Linder Road and SH-44, and SH-44 from Linder Road to Ballantyne Lane, and widened the existing three-lane roadway to five lanes.
The intersection of Linder Road and SH-44 was improved to provide two left-turn lanes along with two through lanes. This project included signalization of three intersections, widening of the existing Middleton Mill Canal bridge structure, drainage, utility coordination, and environmental resolution.
To complete the project efficiently and minimize impacts to the traveling public, the team implemented a carefully sequenced project phasing and staging plan while utilizing innovations. These efforts included the CRABS pavement rehabilitation process, installation of temporary pavement and signals at intersections, night-time construction activities, and continual public involvement efforts to inform roadway users of construction progress.