KA crews executed a critical lift for the Mercy Specialty Center skyway in Coon Rapids on Saturday and Sunday, Dec. 15 and 16, 2013. Here are the facts from Project Manager Ross Nelson:
What took place?
Two long spans were hoisted across Coon Rapids Boulevard into place as part of the new skyway link between the new four-story Specialty Center to Mercy Hospital. Two 85’ sections were assembled together on Coon Rapids Boulevard, creating the 170-foot span prior to hoisting.
How heavy was the span?
Each of the 170-foot spans weighed approximately 22.5 tons.
What equipment was used?
A 220-ton crane picked the large trusses and set them in place. Two additional 40-ton cranes were employed to provide support while the connections were made.
How long is the entire skyway?
The 170-foot section hoisted into place on Saturday and Sunday is one segment of the entire 700-foot skyway. All other segments of the skyway are in place.
What were the logistical considerations?
There were many. Coon Rapids Boulevard was shut down from 4:45 a.m. on Saturday, Dec. 14 to accommodate the two-day process of rigging, hoisting and connecting. Detailed logistical planning was required to maintain safety and critical access to the hospital. Among the details:
• KA worked with Anoka County engineering, traffic and maintenance departments; City of Anoka, City of Coon Rapids, Mercy Hospital and both cities’ local fire and rescue.
• We notified state medical air lift units of planned activities due to crane boom heights being in the air because of the proximity to the helipad.
• Access to the hospital was maintained in all directions for visitors, employees and medical emergency vehicles.
• We coordinated with Mercy security to monitor traffic issues on hospital property; along with Anoka County Traffic control to adjust the existing stop lights’ timing sequence.
• We worked with County Maintenance in the event of a snow event (which we encountered) to ensure the road was clear of snow, ice and debris prior to reopening.
• 911 Dispatch was notified every 12 hours to provide updates on construction progress and planned start and stop of each work day.
• A “Command Center Team” was created, comprised of KA project manager, superintendent and safety director; Mercy operations/maintenance staff and city officials from Anoka and Coon Rapids to communicate progress and schedule. This team conducted conference calls twice a day on Saturday and Sunday at 9:00 am and 3:00 pm to discuss. Reports were generated and submitted to all parties following each meeting.
What was the timeline?
We actually completed the job 12 hours ahead of schedule, and re-opened Coon Rapids Blvd. at 6:00 p.m. Sunday evening after coordinating with the County to plow the road and apply ice melt as well as traffic engineering to re-set the traffic signals.
This was the last segment of the entire skyway to be set in place and we have now moved into lane closures along Coon Rapids Boulevard in order to install the exterior skin (metal panels and glass) and roof of the Specialty Center. Once the skin and roof are on and we’re weather tight, we’ll run temporary heat inside to warm the steel and pour the concrete deck.
Project type: Healthcare construction
Client: Allina Hospitals & Clinics
Owner: Frauenshuh Companies
Project director: Bill Jarvis
Project manager: Ross Nelson
Project superintendent: Barry Dahlin
Safety director: Tom Nelson
Project assistant: Minnie O’Neal & Jeanette Wilson
Project accountant: Kim Stanley