UN/LOCODE: USSEA📍 United States
Port of Seattle (UN/LOCODE USSEA)
❖ Coordinates: 47.6062°N, -122.3321°E
❖ Time Zone: America/Los_Angeles
❖ UN/LOCODE: USSEA
## About the Port
The **Port of Seattle** (UN/LOCODE: **USSEA**) is a deep‑water, container‑handling hub located on the shores of Elliott Bay in Washington State, United States. Situated at **47.6062095 ° N, ‑122.3320708 ° W** and operating under the **America/Los_Angeles** time zone, the port serves as a gateway between the Pacific Rim and the North American hinterland. Managed by the Port of Seattle Commission, the facility integrates cargo terminals, cruise‑ship berths, and maritime‑linked industrial parks, making it one of the most diversified ports on the West Coast. Its strategic position—approximately 100 nm north of the Strait of Juan de Fuca—provides year‑round access to the Pacific Ocean, while the extensive rail and highway networks connect it to the inland freight corridors of the United States and Canada.
## History
### Early Development (1850‑1900)
Seattle’s maritime origins trace back to the 1850s, when the nascent settlement leveraged the natural protection of Elliott Bay for lumber export. The **Seattle Waterfront** quickly evolved into a timber‑shipping hub, with wooden piers extending into the bay. By 1889, the Great Seattle Fire destroyed the waterfront’s wooden structures, prompting the city to rebuild using steel and concrete—laying the groundwork for modern port facilities.
### Federal Involvement and Expansion (1910‑1945)
The **U.S. Army Corps of Engineers** began dredging projects in the early 20th century, deepening the harbor to accommodate larger steamships. In 1911, the Port of Seattle was formally established as a public‑purpose corporation. During World War II, the port’s capacity exploded as it became a critical staging point for the Pacific theater, handling military cargo, shipbuilding, and troop movements.
### Post‑War Modernization (1946‑1990)
Post‑war economic boom spurred the construction of container terminals. The 1960s saw the introduction of the first container crane, and the **Seattle‑Tacoma International Airport** opened a multimodal link that reinforced the port’s logistics network. In 1975, the port adopted the **Container Security Initiative**, aligning with U.S. Customs and Border Protection to streamline cargo inspections.
### Recent Era (1991‑Present)
The 1990s ushered in a wave of public‑private partnerships that financed the **Alaskan Way Seawall** and the **Seattle Cruise Terminal**. The port’s container terminal was upgraded with post‑pandemic automated guided vehicles (AGVs) and quay cranes capable of handling 22‑container‑wide ships. In 2018, the **Port of Seattle** joined the **Port of Los Angeles‑Seattle–Tacoma Alliance**, fostering collaborative investments in green technology and digital trade platforms.
## Infrastructure & Facilities
### Container Terminals
- **Terminal 1 (North)**: Equipped with 13 Super‑Post–Panic (SPP) quay cranes, each rated at 22 container rows, and a 1,500‑meter berth depth of 15 m (≈ 49 ft).
- **Terminal 2 (South)**: Features 10 Super‑Post–Panic cranes, automated stacking cranes (ASCs), and a dedicated rail‑load yard capable of handling 30 railcars per hour.
Both terminals operate under a **terminal operating system (TOS)** that integrates vessel stowage planning, gate‑in‑gate‑out (GIGO) processes, and real‑time visibility for shippers.
### Cruise Facilities
Seattle’s **Cruise Terminal**, located at Pier 66, accommodates vessels up to 3,000 GT, handling roughly 300,000 passengers annually. The terminal includes customs inspection bays, baggage handling systems, and a waterfront promenade that links to downtown Seattle.
### Bulk & Project Cargo
The port maintains dedicated **bulk terminals** for grain, lumber, and automobiles. The **Automotive Terminal** offers roll‑on/roll‑off (RoRo) ramps and a 2‑million‑tonne annual capacity for vehicle imports and exports.
### Intermodal Connectivity
- **Rail**: Two Class I railroads—BNSF Railway and Union Pacific—serve a **10‑track rail yard** with direct access to the **Seattle‑Portland corridor**.
- **Highways**: Interstate 5 (I‑5) and State Route 99 provide truck routes to the **Washington State Ferry system** and the broader interstate network.
- **Air**: Proximity to **Seattle‑Tacoma International Airport** enables air‑cargo synergy for high‑value, time‑critical shipments.
*For detailed terminal specifications, see the official Port of Seattle infrastructure guide.*
## Economic Importance
### Contribution to Regional GDP
The Port of Seattle generates an estimated **$40 billion** in economic output annually, supporting **~ 200,000 jobs** across logistics, manufacturing, and tourism sectors. Its **direct** employment includes dockworkers, terminal operators, and customs officials, while **indirect** jobs arise in warehousing, trucking, and retail.
### Trade Balance & Export Profile
Seattle’s export basket is heavily weighted toward **technology products (semiconductors, aerospace components)**, **agricultural commodities (wheat, soybeans)**, and **timber**. In 2023, the port handled **5.2 million TEUs** of containerized cargo, ranking it among the top‑5 U.S. West‑Coast gateways.
### Sustainability Initiatives
The port is a signatory to the **Port of Seattle Climate Action Plan**, targeting a **30 % reduction in greenhouse‑gas emissions** by 2030. Initiatives include shore‑power (cold‑ ironing) for vessels, electrified yard equipment, and a **green‑certified freight corridor** that encourages low‑carbon trucking.
### Cruise‑Tourism Revenue
Cruise operations contribute roughly **$1.1 billion** in tourism spend each year, supporting hotels, restaurants, and cultural institutions in downtown Seattle. The port’s marketing partnership with Washington State tourism offices amplifies its global visibility.
## Trade Routes & Major Cargo
### Pacific Rim Corridors
Seattle serves as a primary node on the **Asia‑Pacific trade corridor**, with regular services to **Tokyo, Shanghai, Busan, and Hong Kong**. Ultra‑large container vessels (ULCVs) up to 18,000 TEU call on the port, facilitated by the **deep‑draft berths** and high‑capacity quay cranes.
### North American Inland Routes
From the port, cargo flows northward via the **BNSF and Union Pacific rail lines** to the **Midwest (Chicago, Detroit)** and southward to the **Southern U.S. (Los Angeles, Houston)**. The **Port of Seattle–Seattle–Tacoma Alliance** leverages shared intermodal assets to streamline shipments across the **Trans‑Canada Highway** into British Columbia.
### Dominant Cargo Profiles
| Cargo Type | Primary Origin/Destination | Approx. Annual Volume |
|------------|----------------------------|-----------------------|
| **Containerized Consumer Goods** | Asia (China, Vietnam) | 4.8 million TEU |
| **Automobiles & Parts** | Asia (Japan, Korea) & North America | 1.2 million units |
| **Agricultural Grains** | Inland U.S. (Washington, Idaho) | 12 million MT |
| **Timber & Pulp** | Pacific Northwest Forests | 9 million MT |
| **Aerospace & High‑Tech** | Regional manufacturers (Boeing, Microsoft) | 3 million MT equivalent |
### Emerging Trade Lanes
The port is expanding its **LNG (liquefied natural gas) terminal** to capture growing demand from Asian markets, while a dedicated **cold‑chain hub** is under development to support perishable food exports to the **European Union** under the **EU‑US Trade and Cooperation Agreement**.
### Digital Trade Platforms
Seattle participates in the **Port Community System (PCS)**, a blockchain‑enabled platform that integrates customs documentation, vessel stowage plans, and real‑time cargo tracking. This system improves **visibility**, reduces **dwell time**, and enhances **regulatory compliance**—key factors in maintaining competitiveness on the global stage.
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*The Port of Seattle continues to evolve, balancing robust trade volumes with sustainability and technological innovation, thereby cementing its status as a cornerstone of Pacific‑North American commerce.*
**External References**
- Port of Seattle Official Site↗ – Comprehensive data on terminals, policies, and sustainability programs.
- U.S. Maritime Administration (MARAD)↗ – Federal oversight and statistics for U.S. ports, including trade metrics and regulatory frameworks.
Port Intelligence
UN/LOCODE
USSEA
Country
United States
Province / Region
Washington
Latitude
47.606209
Longitude
-122.332071
Timezone
America/Los_Angeles
Nautical Map (OpenSeaMap)
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Frequently Asked Questions
What is the UN/LOCODE for Port of Seattle?
The official UN/LOCODE for Port of Seattle is USSEA.
Where is Port of Seattle located?
The Port of Seattle is located in United States, Washington. Its coordinates are 47.6062°N, -122.3321°E.
What time zone is Port of Seattle in?
Port of Seattle operates in the America/Los_Angeles time zone.
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About the World Port Index
This data is sourced programmatically. The UN/LOCODE is the official geographic coding scheme used by the United Nations for trade and transport locations.
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