the proposed Albany–Tiburon span, and Modjeski promptly complimented the plans that had been drawn up by Tomasini's chief engineer, Erle L. Cope. The design for a lift span in the proposed Sausalito–Belvedere bridge was changed to a bascule after public comments were received from a local shipbuilder. Tomasini received a permit for the Sausalito–Belvedere bridge from the War Department in December 1928. Tomasini had planned to commence construction of the Sausalito–Belvedere bridge in July 1930, but he was met with opposition from the Tiburon-Belvedere Chamber of Commerce, who felt the creation of a bridge would eliminate the promised San Francisco-Tiburon ferry service. In 1931, the Richardson Bay Redwood Bridge was opened, which was the largest structure in the world constructed of redwood. The Redwood Bridge carried the Redwood Highway (present-day US 101) and spanned the upper reach of Richardson Bay, eliminating some of the need for the proposed Sausalito–Belvedere bridge. The Redwood Bridge would be replaced by a concrete structure in the 1950s. Tomasini continued to add to the project scope in July 1928 by proposing a bridge and tunnel to join San Francisco to the proposed Albany–Tiburon bridge. The tunnel would run roughly northeast from Bay Street and Grant Avenue, not far from present-day Pier 39, at a depth of below low tide water level for . At that point, the tunnel would surface northwest of Goat Island, and then transition to a bridge nearly long with a minimum vertical clearance of and two lift spans connecting to the proposed Albany–Tiburon bridge. The cost of the entire project was , split as for the Albany–Tiburon bridge, for the Sausalito–Belvedere bridge, and for the San Francisco–Marin–Alameda tunnel and bridge. Tomasini organized each of the three proposed structures as independent projects, preferably to be built simultaneously, but in the event that one was not approved, it would not delay the construction of the other two. San Francisco's board of supervisors rejected Tomasini's San Francisco–Marin–Alameda tunnel and bridge in September 1928, although the board's action was non-binding. By February 1932, Tomasini's proposed Albany–Tiburon bridge had changed to a combination bridge—tunnel. The bridge portion was a low trestle approximately long, extending westward from Point Fleming in Albany in Alameda County. The proposed tunnel would have been long and ventilated by four towers, emerging at Bluff Point near Tiburon in Marin County. Total estimated cost for the two structures was now and despite opposition