Medical Center Central Plant Expansion

Medical Center Central Plant Expansion

MEDICAL CENTER CENTRAL PLANT EXPANSION

Location

Arizona

Markets

Healthcare | Tenant Improvements & Remodels | Utility / Central Plant

This Design + Build project upgraded aging equipment and utility supplies to accommodate the medical center’s operational requirements while reducing operating costs with more efficient equipment. Additional objectives included providing redundancy for critical mechanical and electrical systems, increased space for the Central Plant operations team, and increased capacity of the facility’s medical gas systems.

Innovations to the project’s design and construction included the second-floor location of the cooling towers in the facility to address space constraints. Large-scale roof penetrations were achieved by increasing the structural support capacity and developing flashing solutions.

A Multi-Phase Remodel & Expansion

  • Phase 1: Scope of work included upgrades to the med gas storage and disbursement room and systems, along with the installation of new vacuum pumps and compressors.
  • Phase 2: Scope of work included the construction of new 2-story 4000SF addition for expansion of critical power infrastructure, which included 3 emergency generators and additional electrical equipment, a new 45,000-gallon storage capacity upgrade for emergency diesel fuel, new utility services, and required critical utility relocation. Phase 2 also included TI for updated central monitoring of essential systems, new operations control center, conference room, offices, new yard, and masonry wall.
  • Phase 3: Scope of work included a 2-story 5,000SF addition with 3 new chillers, 5 cooling towers, pumps, and controls to expand critical heating and cooling infrastructure.

Site safety planning and coordination with multiple stakeholders and user groups were imperative. Loven Contracting promptly notified all stakeholders of system changes and back-up utilization for all essential services.

Photos: Emilio Ferrara and Larry Hendricks

Glen Canyon Bridge Pipeline Repair

Glen Canyon Bridge Pipeline Repair

GLEN CANYON BRIDGE PIPELINE REPAIR

Location

Coconino County, AZ

Glen Canyon National Recreation Area has their largest wastewater treatment facility located at Wahweap Marina, which pumps sewage to Page crossing the Glen Canyon Bridge at the Colorado River. The sewer force main at this facility hangs off the side of the bridge 800 feet above the water below and was deemed in critical condition. Loven Contracting acted quickly and performed immediate assessments of the pipeline structure upon contract award. 

After the pipeline breaches were identified, Loven Contracting developed a scope of work to perform the immediate repairs required to allow the pipeline to function properly. In order to access the pipe and begin the repair process, a bridge truck was utilized to lift personnel out and over the side of the bridge. Using the bridge truck required closure of a travel lane on the bridge, restricting traffic flow. Due to an outstanding traffic permit between ADOT and the local houseboat transportation company, the bridge lanes could not be restricted between the hours of 6am and 8pm. As such, all traffic closures and bridge truck activities were conducted after 8pm. 

In addition to our construction services, Loven Contracting provided valuable recommendations and advisement to the National Park Service to ensure the pipeline’s future long-term performance. This project came in below original estimates, providing an overall cost savings to the National Park Service.

Rainbow Bridge National Monument

Rainbow Bridge National Monument

RAINBOW BRIDGE NATIONAL MONUMENT

Location

Lake Powell, UT

High water events in the autumn of 2013 caused significant damage to the Rainbow Bridge Trail in Rainbow Bridge National Monument – a remote National Park Service site accessible only via footpath or by boat.

Repair and reconstruction of the trail required barge transport of all equipment, materials, and personnel from Page, Arizona, to the job site. To reduce transportation costs and job duration, the crew was supplied with houseboat housing, enabling them to maintain a continuous work schedule.

The trail repair and improvement process included trenching and excavating for a new gabion trail support structure and installing the gabion. To address additional erosion caused by an overhead waterfall feature during flash flood events, Loven Contracting designed and constructed a concrete pad in the water flow’s impact zone. Upon construction completion, the crew removed the temporary trail reroute and the equipment access road. Our crew conducted all site clean-up and restoration activities per National Park Service standards.

Northern Arizona University North Boiler Plant

Northern Arizona University North Boiler Plant

NORTHERN ARIZONA UNIVERSITY NORTH BOILER PLANT

Location

Flagstaff, AZ

Loven Contracting acted as the general trades subcontractor for major renovations and capacity upgrades to the existing North Boiler Plant on the active Northern Arizona University campus in Flagstaff, Arizona. Scope of construction services included selective demolition to portions of the existing building while all critical utilities maintained continuous, uninterrupted operation.

Major structural upgrades included constructing underground concrete vaults and drilled-shaft caissons while protecting the existing structures, utilities, and steam tunnels in the plant and seismic and snow load upgrades to the existing building’s structure. Loven Contracting also provided architectural façade upgrades to the facility consisting of new curtain walls, brick veneer, and architectural panels. Interior upgrades to the North Boiler Plant included a new boiler plant control room, storage mezzanines, plant operator restroom, and shower and locker facilities.

To ensure public and student safety on the NAU campus during the project, Loven Contracting took additional safety precautions by increasing site signage visibility and focusing on public announcements to communicate project-related information.