Project & Construction Site
Fennovoiman rakentamisjohtaja Jouni Sipiläisen mukaan alueen täyttötöihin on käytetty jo noin 14 Eduskuntatalon tilavuuden verran louhetta ja mursketta. Kuva: Fennovoima

According to Jouni Sipiläinen, Construction Director of Fennovoima, 1.5 million cubic meters of blasted and crushed stone has been used as the artificial fill for Hanhikiventie and the site area. Photo by Toni Pallari

Preparatory work will continue in the Hanhikivi 1 project

Excavation and blasting works are continuing at the Hanhikivi 1 construction site.

At present, earth and water construction work in preparation for the construction of the nuclear power plant are ongoing at the Hanhikivi 1 plant area. Side dams of the cooling water discharge channel are being constructed. Dock basin breakwaters will be lined with stones. Dredging of the discharge channel and excavation of the channel inside the cofferdam will also continue.

According to the plans, the excavation and blasting of the plant site and cooling water tunnels will continue until 2022. Levelling concrete will also be poured at the plant site.

Actual construction in the plant area will start once a construction license based on the Nuclear Energy Act has been granted for Hanhikivi 1. Separate permits or licenses are required for any construction at the Hanhikivi 1 construction site, however.

“So far, more than 80 permits for landscaping, construction and other actions, as well as water and environmental permits have been granted for the construction site,” says Jouni Sipiläinen, Construction Director of Fennovoima.

Currently, earth and water construction work in preparation for the construction of the nuclear power plant are ongoing at the Hanhikivi 1 plant area. Photo by Kuulu

From a plot of land to a site area

Hanhikivi 1 is a greenfield investment, which means that everything has been built from scratch. The power plant will be constructed at the seashore that was previously forested without any municipal engineering. At this point, the construction site has been raised to three meters above sea level. The final elevation of the plant area will be 4.6 meters above sea level. Hence, seawater will not be able to harm safe operation of the nuclear power plant at any point during its lifecycle of a hundred years.

“The actions that caused the most workload included the construction of Hanhikiventie from highway 8 to the construction site and the construction of electricity, water, and plumbing connections,” Sipiläinen says.

“More than 80 permits for landscaping, construction and other actions have been granted for the construction site.

“On the other hand, one of the benefits of a greenfield project is the fact that you don’t have to consider any existing buildings or infrastructure elements when planning the area.”

So far, 1.5 million cubic meters of blasted and crushed stone has been used as the artificial fill for Hanhikiventie and the site area. That is fourteen times the volume of the Parliament House. The stone material was taken from quarries along Hanhikiventie.

“The total volume of the plant excavation is approximately one million cubic meters, of which a little over half is rock and the rest is moraine or glacial till. All of the excavated materials will be used as artificial fill in the site area,” Sipiläinen says.

The plant excavation is a pit that is 400 meters long and 300 meters wide. Many of the plant area’s largest buildings will be constructed on top of a thick concrete slab to be poured into the excavation.

Project & Construction Site

Project & Construction Site

Plots from Fennovoima business area now available for lease

The plots in the Fennovoima business area on the Hanhikivi peninsula are now available among the plots for sale in Pyhäjoki. The area has been designed for companies serving the Hanhikivi 1 project or its contractors.

Project & Construction Site

Excellent quality in the nuclear industry

Nuclear industry deliveries are the crown jewels in the reference list of SKM Service from Pattijoki, Finland. For the Hanhikivi 1 construction site, the company has delivered a pumping station.