Jätemäki Fitness Stairs
430 PRO helical piles on a steep hillside, installed in five days with a single excavator.
The City of Helsinki renovated the well-known Jätemäki fitness stairs, one of the city's most popular spots for training. The old stairs had worn down and, with heavy daily use, it was essential to keep downtime short and to have a reliable foundation on difficult terrain.
Helical piles were the right choice: a solid base without major excavation, soil replacement, frost protection or concrete pouring. A total of 430 PRO helical piles were installed in the very steep slope.
Installation was fast: all the piles were distributed, positioned and driven in just five working days, with a single excavator. The slope called for precision, both in moving the machine safely and in placing the piles accurately.
After piling, U-brackets were fitted to the pile heads, which allowed a seamless move to the next phase: the carpentry team could start building the stairs as soon as enough piles were in place.
430 PRO helical piles · steep hillside · five-day installation · one excavator · U-brackets
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