For funding purposes, the proposed work to convert Capital Boulevard (U.S. 1) – between I-540 in Raleigh and Purnell/Harris roads in Wake Forest – to a controlled-access highway would be divided into four segments.
| Segment A | I-540 to Durant Road/Perry Creek Road |
| Segment B | Durant Road/Perry Creek Road to Burlington Mills Road |
| Segment C | Burlington Mills Road to N.C. 98 Business (Durham Road) |
| Segment D | N.C. 98 Business (Durham Road) to Purnell Road/Harris Road |
Converting the roadway to a controlled-access highway would limit entry onto the roadway via ramps at interchanges.
The current design includes the following key elements:
- Removal of all traffic signals and driveway connections along Capital Boulevard (U.S. 1).
- Enhancement of existing interchanges at I-540, N.C. 98 Bypass and N.C. 98 Business.
- Construction of two overpasses along Capital Boulevard (U.S. 1): one north of I-540 at Gresham Lake Road and another at the existing Jenkins Road/Stadium Drive intersection.
- Construction of new interchanges at Durant Road/Perry Creek Road, Burlington Mills Road, Falls of Neuse Road/South Main Street (U.S. 1A) and Purnell Road/Harris Road.
- Improvement of existing service roads and the construction of new service road connections throughout the project corridor.