Chapter 3: New Location and Reconstruction (4R) Design Criteria


Section 1: Overview

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This chapter presents guidelines that are applicable to all new location and reconstruction projects for several different functional classes of roadways, as well as Freeways and the Texas Highway Freight Network (THFN):

Note that additional vertical clearance requirements may apply to projects on the Texas Highway Freight Network (THFN) as specified in Chapter 3, Section 8.

Departures from these guidelines are governed in Design Exceptions, Design Waivers, Design Variances, and Texas Highway Freight Network (THFN) Design Deviations, Chapter 1.

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