Tomahawk Bay Moorage
Yacht & sportfish marina · Columbia & Willamette Rivers
123 Harbor Dr, Portland, Oregon
Overview
Tomahawk Bay Moorage is a yacht & sportfish marina in Portland, Oregon, with wet slips for vessels up to 80 feet. Positioned on Columbia & Willamette Rivers with access to River, Tomahawk Bay Moorage serves boaters working Columbia River downstream to Astoria and the broader Portland cruising area. The marina is configured for transient cruisers, sportfish owners, and annual slip holders, with shore power, fresh water, and dockmaster support on site.
Portland's covered river moorage protects boats from PNW winters and supports a year-round liveaboard community.
Location & waterway access
Waterway
Columbia & Willamette Rivers
Access
River
Typical water depth
15–30 ft MLW
Hurricane protection
Protected basin
Dockage options
Includes wet slips, transient and monthly dockage, with yacht dockage for larger vessels.
Boat compatibility
Maximum LOA accommodated: 80 ft. Confirm beam, draft, and air clearance when reserving.
Amenities
- Parking
- Pet Friendly
- Valet Docking
- Concierge
- Yacht Club
- Pool
- Covered Slips
- 24/7 Security
Shore power & utilities
Transient, monthly & liveaboard
Transient docking
✓ Available
Overnight and weekly slips for cruising boaters.
Monthly slips
✓ Available
Monthly dockage typically $8 – $20 / ft / month.
Liveaboard slips
Limited availability
Year-round liveaboard with marina approval.
Pricing guidance
- Monthly slip estimate
- $8 – $20 / ft / month
- Transient estimate
- $8 – $20 (transient nightly rates vary by season)
- Yacht dockage
- Yacht dockage for 80–80+ ft typically priced at the upper end of $8 – $20 / ft / month; concierge rates available.
- Seasonality
- Year-round; peak May–September.
Pricing may vary by season, boat length, and electric metering. Contact marina for exact availability and pricing.
See the full wet slip pricing guide, monthly slip costs, and transient slip pricing.
Local boating context
Nearby boating destinations
- • Sauvie Island
- • Multnomah Channel
- • Hood River
Popular cruising routes
- • Columbia River downstream to Astoria
- • Multnomah Channel loop
- • Willamette upstream run
Nearby fuel stops
- • RiverPlace fuel
- • Hayden Bay fuel
Seasonality
Year-round; peak May–September.