San Francisco City Hall - Architecture

Architecture

The building's vast open space is more than 500,000 square feet (46,000 m2) and occupying two full city blocks. It is 390 ft (120 m) between on Van Ness Avenue and Polk Street, and 273 ft (83 m) between Grove and McAllister Streets. Its dome, which owes much to Mansart's Baroque dome of Les Invalides, Paris, is the fifth largest dome in the world, rising 307.5 ft (93.7 m) above the Civic Center Historic District. It is 19 ft (5.8 m) higher than the United States Capitol, and has a diameter of 112 ft (34 m), resting upon 4 x 50 ton (3.5 x 44.5 metric ton) and 4 x 20 ton girders (3.5 x 17.8 ton), each 9 ft (2.7 m) deep and 60 ft (18 m).

The building as a whole contains some 7,900 tons (7,035 metric tons) of structural steel from the American Bridge Company of Ambridge, Pennsylvania near Pittsburgh. It is faced with Madera County granite on the exterior, and Indiana sandstone within, together with finish marbles from Alabama, Colorado, Vermont, and Italy. Much of the statuary is by Henri Crenier.

The Rotunda is a spectacular space and the upper levels are public and handicapped accessible. Opposite the grand staircase, on the second floor, is the office of the Mayor. Bronze busts of former Mayor George Moscone and his successor, Dianne Feinstein, stand nearby as tacit reminders of the Moscone assassination, which took place just a few yards from that spot in the smaller rotunda of the mayor's office entrance. A bust of former county supervisor Harvey Milk, who was assassinated in the building was unveiled on May 22, 2008. While hard to discern these days, the inscription that dominates the grand Rotunda and the entrance to the mayor's small rotunda, right below Father Time, reads:

SAN • FRANCISCO
O • GLORIOVS • CITY • OF • OVR
HEARTS • THAT • HAST • BEEN
TRIED • AND • NOT • FOVND
WANTING • GO • THOV • WITH
LIKE • SPIRIT • TO • MAKE
THE • FVTVRE • THINE

1912 JAMES ROLPH JR. MAYOR 1931

The words were written by the previous Mayor Edward Robeson Taylor, and dedicated by Mayor James Rolph.

While plaques at the Mall entrance memorialize President George Washington's farewell address and President Abraham Lincoln's Gettysburg Address, the primary themes of the statuary are to the past mayors, with the dates of their terms in office. The medallions in the vaults of the Rotunda are of Equality, Liberty, Strength, Learning and, as memorialized in the South Light Court display, Progress.

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