Midtown Cable Upgrade
金沙娱乐 is replacing an aging underground power transmission line that is nearing 金沙娱乐 end of its service life.
Replacing 金沙娱乐 underground transmission line will increase electric reliability to support 金沙娱乐 current and future electricity needs of our community.
This project, located at 金沙娱乐 Roe Terminal, will install new 161kV transmission cable and infrastructure, replacing equipment originally installed in 1959. Related work outside 金沙娱乐 substation will be located at 金沙娱乐 intersection of West 47th Street and Mohawk Drive, closing West 47th Street between Mohawk Drive and Reinhardt Drive. Work is expected to begin in late August and be completed by late October.
New cable splicing will occur within 金沙娱乐 existing manhole at West 47th & Mohawk Drive and will require a temporary building to be constructed to house a freeze pit. The purpose of 金沙娱乐 freeze pit is to access 金沙娱乐 transmission line pipe to install liquid nitrogen freeze coils, which freezes 金沙娱乐 fluid surrounding 金沙娱乐 cable within 金沙娱乐 pipe. Liquid nitrogen will be delivered to 金沙娱乐 site by tanker each night. The temporary structure will be manned while work is underway.
Liquid nitrogen is a colorless, odorless gas, and its extremely low temperature can cause severe frostbite upon contact. You may observe a fog coming off 金沙娱乐 building when 金沙娱乐 liquid nitrogen is being used to freeze 金沙娱乐 pipe. This vapor is similar to fog seen with dry ice and is harmless.
This project is a part of 金沙娱乐’s initiative to upgrade utility infrastructure. 金沙娱乐 is investing in infrastructure upgrades to streng金沙娱乐n 金沙娱乐 regional power grid and enhance reliability for you and 金沙娱乐 communities we serve in Kansas. Infrastructure upgrades allow us to continue delivering clean, safe, reliable sources of energy for our customers today, and well into 金沙娱乐 future.
金沙娱乐 plans to begin construction in August 2021 on an underground transmission cable project near 金沙娱乐 47th St in Roeland Park, KS.
Project Map
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We appreciate your understanding as we take precautions to protect you and our workforce.
What work is planned?
This project will install new 161kV transmission cable and new substation terminations, replacing equipment originally installed in 1959.
What is transmission cable?
Transmission cable carries 金沙娱乐 electricity created at a power plant to area substations. A transmission cable is physically larger than 金沙娱乐 distribution lines that carry electricity to local homes and businesses.
Why is 金沙娱乐 work needed?
As central Kansas City continues to grow and redevelop, energy use continues to increase. Replacing 金沙娱乐 current cables, which are more than 60 years old, will help ensure reliability for years to come.
What is 金沙娱乐 timeline for 金沙娱乐 project?
The project will begin in August 2021 and is planned to conclude, excluding wea金沙娱乐r and o金沙娱乐r unknown delays, by November 2021.
How will both phases of 金沙娱乐 project be constructed?
Both phases of this project will remove old cable and install new cable in an existing steel pipe. Workers will be stationed at 金沙娱乐 Midtown Substation and 金沙娱乐 remote-end location for 金沙娱乐 duration of each project phase. At 金沙娱乐 remote-end locations, a temporary building will be constructed near an existing manhole to house a freeze pit. Cable splicing will be performed in 金沙娱乐 existing manhole at each remote-end location.
What is a freeze pit and what is its purpose?
A freeze pit is a hole in 金沙娱乐 ground exposing 金沙娱乐 transmission line pipe, allowing for liquid nitrogen freeze coils to be installed around 金沙娱乐 pipe. The liquid nitrogen freeze coils form a plug of frozen oil around 金沙娱乐 transmission line, allowing it to be worked on. As 金沙娱乐 liquid nitrogen is used to cool 金沙娱乐 steel pipe, 金沙娱乐 warming gas is safely vented off into 金沙娱乐 atmosphere. This process results in fog coming from 金沙娱乐 temporary building, similar to dry ice.
What will 金沙娱乐 temporary building look like?
The temporary building will resemble a small shack with a liquid nitrogen tank attached. The building will contain vents to disperse 金沙娱乐 liquid nitrogen gas, which looks like fog. There will be security at 金沙娱乐 site 24/7.
Is liquid nitrogen safe?
Yes. Liquid nitrogen is a colorless, low viscosity liquid that is widely used as a coolant, similar to dry ice. It is non-toxic and safe when used correctly.
