Get the MarineRadar appSatellite AISSatellite live trackingTrack any shipLive alerts112,000+ ships trackedDownload free

Port of Madison Park

USYMD🇺🇸USA

Port Location

About Port of Madison Park

Madison Park is a marina located in Seattle, Washington. It serves as a hub for Amazon's operations, with facilities for tugs and a drydock. The marina is situated on Lake Washington.

Current Conditions

Loading current conditions…

Vessel Limits

Channel Depth
9ft
Tidal Range
2ft
Elevation
5m

Operations & Services

Port of Entry
Yes
Pilotage Compulsory
Yes
Tug Assistance
Yes
Cranes
Fixed, Mobile, Floating
Drydock
S
Repair Code
A

History

Established
2016
Operator (Wikidata ID)
Amazon

Nearby Vessels

Flag
Type
Name
Dist.

Identification

UN/LOCODE
USYMD
Country
🇺🇸USA
Time Zone
UTC-8
Feature Type
MAR (Marina)

Classification

Type
Port
Harbor Type
Coastal natural
Shelter
Excellent

Region

Subdivision
US-WA
Area
US West Coast
Latitude
47.6355°
Longitude
-122.2752°

References & Identifiers

WPI No.
17730 →
GeoNames ID
7716876 →
Wikidata
Q27676067 →
Official Site
www.amazon.com →
Live tracking · 50,000+ mariners

Track ships at the Port of Madison Park in real time

Live AIS positions, arrivals, and departures at USYMD — straight from your phone.

Live AIS positionsArrival alertsVoyage history
Get the App

Frequently Asked Questions

How do I navigate the approach to the Port of Madison Park?+
The approach to Madison Park is supported by 5 navigation aids within 50 nautical miles. The nearest is Swiftsure Lighthouse at 2.5 NM to the W. Other aids include West Point (6.7 NM WNW), Alki Point (6.9 NM WSW), Point Robinson (15.4 NM SSW), Mukilteo (18.8 NM N). Mariners should consult the relevant chart and List of Lights for full approach details.
What major shipping routes pass near the Port of Madison Park?+
The Port of Madison Park is located within the US West Coast shipping lane — a major trans-Pacific trade route serving West Coast ports of the United States. This strategic position influences vessel traffic density, anchorage availability, and port scheduling.
How do I track vessels arriving at or departing from the Port of Madison Park?+
You can track vessels near Madison Park (USYMD) in real time using MarineRadar. The platform displays live AIS positions of nearby ships, including vessel name, type, flag, speed, and course. Use the "Track Vessels Nearby" button on this page or search for USYMD on the live map.
What are the operating hours and time zone for the Port of Madison Park?+
The Port of Madison Park operates in the UTC-8 time zone. Operating hours, VTS schedules, and pilot availability vary — vessel agents should confirm with the port authority in advance, especially for night arrivals or weekend operations.