Transportation
The City Council appointed the City's first Street Commissioner in 1875. Management of Seattle's street networks resided with several agencies over the years, including the Department of Streets and Sewers (1896-1936), the Engineering Department (1936-97), and the Seattle Department of Transportation (1997-present). The City also ran its own public transportation system under the Municipal Street Railway System and Seattle Transit Department from 1919-73 before it was absorbed by King County Metro.
Street System
In 1900, Seattle had 106 miles of streets. Today, the City has over 4,000 lane miles of streets along with over 2,200 miles of sidewalks, 6,000 marked crosswalks, 100 bridges, 35,000 street trees, and 100,000 street signs.
Transportation Construction
Throughout most of Seattle's history, most street construction projects were approved and paid for, at least in part, by surrounding property owners through local improvement districts. Property owners could pay their entire assessments due at the time of construction or pay by installment over a period of years. Seattle voters periodically approved bond levies to raise money for arterial and highway construction.
Bridges
Because Seattle is surrounded and divided by bodies of water, citizens rely on the City's network of more than 100 wholly or partly owned bridges to connect neighborhoods with downtown and other neighborhoods.
Public Transportation
In 1902, voters in the City of West Seattle approved the first municipally-owned streetcar line in the United States. The streetcar line was later sold to private investors, but the City of Seattle assumed ownership of its own streetcar network in 1918 upon the purchase of Puget Sound Traction, Light, and Power Company's system. The Municipal Street Railway System transitioned to an all-bus network in 1940, and the agency reorganized as the Seattle Transit System. The City's public transportation system was absorbed into the Municipality of Metropolitan Seattle (METRO) in 1973.