Sign Support Systems, Designator Nomenclature

S - SystemS - Sign SupportC - Coupling01 - 99a - z
F - Fracturing
M - Mailbox Base
O - Other
P - Splice
S - Slip Base
T - Transformer Base

For example, SSS01a is a System that is a Sign Support with a Slip base.

Sign Supports added in 2022

SSS22a, SafeSign Support System

Sign Supports added in 2021

SSF41a, Telespar Sign Support

Sign Supports added in 2019

SST01a, Crosswalk Pedistal Station

SST01b, Pedestrian Signal Pole