National Secondary Route 252, is an arterial road from Route 2 to Route 210 in Curridabat.
At only 1.6 kilometers, this road segment was required to continue the (Florencio del Castillo Highway) segment of Route 2, to the southeast of Curridabat canton, at this endpoint a right of way exists to further continue the road to further west in Curridabat canton.
From the Curridabat west endpoint, there have been plans of either building a tunnel to the GarantÃÂas Sociales roundabout of Route 39 or an elevated highway to Route 215 in Zapote district.