The N21 Croagh Road Improvement Scheme comprised of works to aid traffic calming and to improve road safety along a 1.2km stretch of the N21 Limerick to Tralee road. The scope of the work included the construction of 2 No. traffic calming gateways, the installation of traffic calming islands and buildouts, the replacement of 2No. bus bays, the modification of two existing minor junctions with restricted turning movements and various other minor ancillary works.