CHEC prepares to transfer power to the Jug Handle Bridge

By on November 28, 2022

By Joy Crist | Island free Press

The Jug Handle Bridge in July, before it opened. (Photo by Kerry Hooper Jr.)

The Cape Hatteras Electric Cooperative (CHEC) is undergoing the final steps to transfer power to the new-in-2022 Jug Handle (or Rodanthe) Bridge, with the transition expected to be fully complete by next week.

During the construction of the new bridge, CHEC was also hard at work to build a new conduit system located under the 2.4-mile-long structure. The power delivered to Hatteras and Ocracoke Islands is solely provided by the transmission lines that run parallel to N.C. Highway 12, and before the Jug Handle Bridge opened in July, that route included the Mirlo Beach stretch between Rodanthe and Pea Island that the new bridge now bypasses.

Because of this roadway shift, CHEC began work in December of 2021 to move the overhead transmission lines to a secure locale under the new bridge, with help from contractor New River Electrical, (and its subcontractor Aptus), to install the hanger, conduit system, and cables.

All work on the bridge structure itself is done, and CHEC has also completed the testing process to ensure that all four cables under the bridge will be working properly once the switch is made.

“We have been waiting to make the call to go ahead and make the cutover, which is dependent on weather and load,” said Laura Ertle, ‎Director of Public Relations and Marketing for CHEC. “We wanted to wait until after Thanksgiving, and now that things have quieted down, it’s the perfect time to get this done.

On Tuesday, November 29, CHEC crews will splice and connect the cables on the south side of the bridge, and will also turn on the bridge cables to allow them to “soak.” “That basically means that we have to let [the cables] sit and energize for a while, like how you would warm up a car,” said Ertle.

A brief power outage will occur at 7:00 a.m. on Tuesday, and while this work is being completed, Hatteras and Ocracoke Islands will run on generator power, which is why CHEC waited until now to finalize the switch.

“One of the reasons we waited is because the load has to be low to ensure that the diesel generators can handle power to [the islands], and Thanksgiving week is a busy time of year,” said Ertle.

A second and similar power outage will also occur sometime next week, when CHEC crews will conduct an identical cable-splicing operation at the north end of the bridge, and officially transfer the power from the old overhead lines to the bridge structure.

Originally, the new under-bridge conduit system was expected to be complete and operational by February of 2023, but the work to move the power is finishing months ahead of schedule.

“One of the things that changed from when we first started this project is that NCDOT had asked us to suspend work in the summer months, so as not to interfere with summer traffic,” said Ertle. “Originally, we planned to work as much as possible until Memorial Day, and then return to work again on Labor Day.”

The problem with this original plan was that once the bridge was complete and open, and work to remove the old highway began, accessing the overhead lines in the bypassed stretch of the S-Curves would become increasingly difficult.

Installation of the transmission cables on the Jug Handle Bridge in August. (Photo by CHEC)

“We expressed some concern about road removal and accessing those [overhead] lines in the event of a hurricane or storm, so they graciously reworked the plan, and two things happened,” said Ertle. “The U.S. Fish and Wildlife Service agreed to delay the road removal for several months, and the NCDOT agreed to allow us to work in the summer months. That expedited the project a lot.”

Once the switch is complete, Hatteras and Ocracoke Islands will have more reliable power for the indefinite future, as the overhead lines in the Mirlo Beach area were always located in a troublesome spot. When the S-Curves portion of N.C. Highway 12 flooded with ocean overwash during storms, all structures in the immediate area were impacted, which included the power lines.

“This is definitely a significant investment in the reliability of service for Hatteras and Ocracoke Islands,” said Ertle. “This move takes away all risk of ocean overwash, salt contamination, and all of the problems that can happen in that vulnerable section of Hatteras Island.”

“We’ve been working on this for a long time, so it’s really good to see it come to a successful ending.”


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BIDDER PRE-QUALIFICATION REQUEST:

Barnhill Building Group has been selected as the Construction Manager @ Risk by the College of the Albemarle and is seeking to pre-qualify construction trade contractors to submit bids for the furnishing labor, materials, equipment, and tools for the new College of The Albemarle – Allied Health Sciences Simulation Lab (COA Health Sciences) located in Elizabeth City, NC. Please note: Only subcontractors who have been prequalified by Barnhill will be able to submit a Bid.

The project consists of the new construction of a 38,000-sf, 2-story expansion to the existing Owens Health Sciences Center and will house classrooms, labs, and a simulation lab. The site is just over just over 4.5 acres and is located on an active campus. This new construction will be a steel structure with a brick and metal panel veneer, curtainwall, and storefront glazing with a PVC roof membrane.

Principal trade and specialty contractors are solicited for the following Bid Packages:

BP0100: General Trades

BP0105: Final Cleaning

BP0390: Turnkey Concrete

BP0400: Turnkey Masonry

BP0500: Structural Steel & Misc. Steel

BP0740: Roofing

BP0750: Metal Panels

BP0790: Caulking / Caulking

BP0800: Turnkey Doors/Frames/Hardware

BP0840: Glass & Glazing

BP0925: Drywall

BP0960: Resilient Flooring

BP0980: Acoustical Ceilings

BP0990: Painting & Wallcovering

BP1005: Toilet Specialties / Accessories / Division 10

BP1010: Signage

BP1098: Demountable Partitions

BP1230: Finish Carpentry and Casework

BP1250: Window Treatment

BP1400: Elevators

BP2100: Fire Protection

BP2200: Plumbing

BP2300: HVAC

BP2600: Turnkey Electrical

BP3100: Turnkey Sitework

BP3290: Landscaping

Packages may be added and/or deleted at the discretion of the Construction Manager. Historically underutilized business firms are encouraged to complete participation submittals.

HUB/MWBE OUTREACH MEETING: Barnhill Building Group will be conducting a HUB/MWBE Informational Session. You are encouraged to attend the following session to learn more about project participation opportunities available to you. These seminars will help to: Learn about project and scope; Inform and train Minority/HUB contractors in preparation for bidding this project; Assist in registration on the State of North Carolina Vendor link; Stimulate opportunities for Networking with other firms. Location and time TBD. Please visit our planroom at https://app.buildingconnected.com/public/54da832ce3edb5050017438b for more information.

Interested contractors should submit their completed prequalification submittals, by July 22, 2024, to Meredith Terrell at mterrell@barnhillcontracting.com or hardcopies can be mailed to Barnhill Contracting Company PO Box 31765 Raleigh, NC 27622 (4325 Pleasant Valley Road, NC 27612).


 



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