Boulevard) south of the Boundary Channel (partial interchange—access only to/from the north—with Boundary Channel Drive) Service area north of the Pentagon Arlington Memorial Bridge connection (now Washington Boulevard) south of the Jefferson Davis Highway Extension (folded diamond) Drop-off area southeast of the Pentagon Jefferson Davis Highway Extension north of the Shirley Highway (trumpet) References External links Roads to the Future—Henry G. Shirley Memorial Highway Roads to the Future—Mixing Bowl Interchange Complex Transportation in Arlington County, Virginia Road network