Notice Not affiliated with the Master Mariners Benevolent Association (MMBA) or any successor organization. v.2026.05
General Overview
Facility 🚤 Full Service Marina Est. Slips ~120 Water Ocean/Bay Est. Parking ~80 spaces Lot Size Medium (50–150) Lot Type Surface (Striped) Confidence High

Medium-sized marina with extensive wet slips filled with boats, a large striped asphalt parking lot containing numerous vehicles, and a few buildings near the water's edge.

Aerial view of Tomahawk Bay Marina
Pacific Coast

Tomahawk Bay Marina

Portland, OR

Tomahawk Bay Marina is located in Portland, Oregon, along the Columbia River, which serves as a major waterway connecting the city to the Pacific Ocean, approximately 100 miles inland from the actual coastline. This marina caters to recreational boating and sailing activities on the river, providing access to the dynamic Pacific Northwest waterways that include the Columbia and Willamette rivers. The region features a mix of freshwater river navigation and opportunities for boaters to venture toward the ocean's influence.

Location Portland, Multnomah County, Oregon
Capacity ~120 slips
Coordinates 45.6062, -122.6554

Nearby Marinas in Oregon

Marina Parking & Access Control

Marinas typically need to separate slip holder parking from day-visitor parking, trailer areas, launch ramps, and secure dock access points. Modern facilities use barrier gate systems to enforce these zones automatically — allowing permitted vehicles through via transponder or keycard while logging all access events.