Standard Road Plans - EC Series Barriers English PDF Mats and Sods EC-101 Wood Excelsior Mat for Ditch Protection EC-102 Sod for Ditch Protection EC-103 Wood Excelsior Mat for Slope Protection EC-104 Turf Reinforcement Mat (TRM) EC-105 Transition Mat (TRM) EC-201 Silt Fence EC-202 Floating Silt Curtain EC-204 Perimeter and Slope Sediment Control Devices EC-301 Rock Erosion Control (REC) EC-501 Trees and Shrubs EC-502 Seeding in Rural Areas