Describing what is now known as the Civil War Defenses of Washington, this plan explored connecting the lands that were once used as military installations on the high ground surrounding Washington with a “park drive.” It envisioned “a wide right-of-way, curving roads, and bits of existing woodland along the way,“ which would be integrated with local streets. Associated cost estimates were provided.

The plan followed a December 1926 Commission action to develop such a plan as a supplement to NCPPC’s “Park System for the District of Columbia.” NCPPC’s actions built upon the McMillan Plan’s preservation of the fort sites and the 1898 Highway Plan’s inclusion of a Fort Drive. The circumferential corridor concept also complemented NCPPC’s emerging bypass and thoroughfare planning.