Seattle has relatively advanced urban infrastructure by U.S. standards, though growth and climate pressures continue to test capacity.
**Electricity** - **Seattle City Light** is one of the few large municipally owned electric utilities in the country. - The city is notable for relying heavily on hydropower from the broader Pacific Northwest system, contributing to comparatively low-carbon electricity.
**Water and sewer** - Drinking water is supplied primarily through protected mountain watershed systems managed by **Seattle Public Utilities**, including the Cedar and Tolt watersheds. - Wastewater and regional treatment functions involve coordination with **King County**. - Stormwater management is a major issue because of heavy seasonal rainfall, combined sewer concerns in older areas, and water-quality protection goals.
**Solid waste** - Seattle has robust recycling and composting programs relative to many U.S. cities, with an established focus on waste diversion.
**Internet and telecommunications** - Broadband access is widely available through major cable and fiber providers, though service quality and affordability vary. - Cellular coverage is generally strong across the city, with typical service from national carriers. - Public discussion continues around digital equity, especially for lower-income households and students.
**Transportation infrastructure** - The city depends heavily on bridges, tunnels, seawalls, ferry terminals, and transit facilities. - Ongoing infrastructure priorities include seismic upgrades, transit expansion, electrification, bike safety, and shoreline resilience.
**Resilience concerns** - Key long-term infrastructure issues include earthquake preparedness, sea level rise, extreme heat, smoke events, and maintaining aging roads, pipes, and public buildings.
