Default unit-cost rates for infiltration-swale installations
Source:R/compute_costs.R
default_cost_rates.RdReturns the default Austrian unit-cost rates used by compute_costs().
Rates were provided by Johannes Leimgruber (OeStaP) on 2026-03-27 for the
RAINDROP cost-optimisation work.
Value
A named list of rates in EUR per m² or m³:
excavation_eur_per_m3, profiling_eur_per_m2,
filter_eur_per_m3, infiltration_box_eur_per_m3,
gravel_trench_eur_per_m3.
Source rates (Leimgruber, 2026-03-27, "Kostenansätze Optimierung")
Aushub (excavation, incl. loading + transport): 70 EUR/m³
Profilierung und Begrünung (profiling + greening): 10 EUR/m²
Bodenfilter (soil filter, incl. installation): 200 EUR/m³
Sickerbox (infiltration box, incl. installation): 350 EUR/m³
Schotterrigol (gravel trench, incl. installation): 50 EUR/m³