New Installation Guidelines
Current breakaway requirements can be met on new installations
by using the new transformer base and pole designed for that base,
both approved by the FHWA to meet ’85 AASHTO standards.
TxDOT typically uses breakaway poles wherever possible, even
when not required. For these types of new installations, where breakaway
poles are used but not required (outside the clear zone or behind
barriers), transformer base poles meeting the ’75 AASHTO guidelines
may be used when currently in stock but should not be considered
breakaway.
Do not use shims or washers to level breakaway base, because
this may change the breakaway characteristics of the base. Ensure
that the top of the concrete foundation is level.