In February 1929, the D.C. Department of Roads and Highways finalized its engineering plans to widen B Street NW from 26th Street NW to Pennsylvania Avenue NW. But these plans needed approval of the NCPC as well as funding from Congress. The NCPC discussed the street widening at its March 9 meeting. It made a site visit along the roadway to see how different widths would affect the vista and the grandeur of the planned avenue. The commission agreed that B Street should be extended eastward at least to 3rd Street NW, and that building setbacks should be a minimum of along the avenue. But the width of the avenue remained in dispute. Tentatively, the NCPC approved a width of between Pennsylvania Avenue NW and Virginia Avenue NW, and from Virginia Avenue NW to the Potomac River. It also said that the avenue should be no wider than from Pennsylvania Avenue NW to 3rd Street NW.