New Mexico State Road 599 - Design

Design

In contrast to several other state highways in northern New Mexico, NM-599 is paved for its entire length. Functionally, it is an expressway by being a divided highway with no driveway access. Instead, local access is provided by linked frontage roads or by way of other connecting roads. There are two diamond interchanges, one partial cloverleaf interchange at the junction with I-25 (which was rebuilt as a diamond interchange in 2009 as part of the construction of a train station in the freeway's median) and several local highways that cross it at intervals, controlled by stop signs (none on NM-599 itself) or traffic lights near the southern end. Upgrades to the expressway are a consideration being undertaken by the New Mexico Department of Transportation's NM 599 Corridor Study.