10.1.3 Pavement Design
Pavement rehabilitation includes all pavement-related work undertaken to extend the service life of an existing facility. This includes placement of additional surfacing material and/or other work necessary to return an existing roadway, including shoulders, to a condition of structural and/or functional adequacy. The following are some examples of pavement rehabilitation work:
- Resurfacing to provide improved structural capacity and/or serviceability;
- Removing and replacing deteriorated materials;
- Replacing or restoring malfunctioning joints;
- Reworking or strengthening of bases and subbases;
- Recycling existing materials; and
- Adding underdrains.
The existing pavement condition and deficiencies should be identified for 3R projects. Design strategies selected to correct deficiencies will vary from seal coats to overlays to complete pavement structure reconstruction. Projects that consist only of seal coats or overlays, and do not meet the design guidelines presented in this chapter, are not eligible for rehabilitation funding
Reference TxDOT’s
for additional information related to pavement rehabilitation.