2R projects are defined as work performed to restore pavement structure, ride quality, or other necessary components, to their existing cross section configuration. The principal purposes of these projects are surfacing and repair of the pavement structure. The addition of through travel lanes is not permitted under a 2R project. The addition of continuous two-way left-turn lanes (TWLTL) acceleration/deceleration lanes, turning lanes, and shoulders are acceptable as restoration work as long as the existing through lane and shoulder widths are maintained as a minimum.

Additional TWLTLs, acceleration/deceleration lanes, and turning lanes should meet the minimum widths of 3R criteria as described in . The 2R work may include upgrading roadway components as needed to maintain the roadway in an acceptable condition.

If bicycle accommodations are provided, they must meet the requirements specified in .