Directions to Napa Valley Marina by Water

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Directions by water from San Pablo Bay starting at the
Mare Island Causeway Bridge


1. Mare Island Causeway Bridge

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Click Image for Larger View

This is the entrance to the Napa River.

If you have a fly bridge or if you are a sailboat you will most likely have to raise the bridge.

Bridge Facts

~ 165 feet long and 48.5 feet wide on top.
~ Minimum bridge clearance (span down) 12.4 feet
~ Maximum bridge clearance (span fully raised) 99.7 feet

Hours of operation:

Regular hours 9AM to 7PM 7 days a week
After hours lift request 7PM to 9AM

To request bridge opening after hours please call 707-534-3715. You need to give 2 hours advance notice for bridge assistance after hours.

Communications with bridge tower during normal operating hours

By Sound Signal: One prolonged blast followed by one short blast via whistle, horn, megaphone, hailer or other device loud enough to be heard by the bridge operator.

By Radio: Call on your VHF radio on channel 13

By Telephone: 707-562-3556

By Visual Signal: Raise and lower a white flag vertically or raise a white, amber, or green light vertically.


2. Highway 37 Fixed Bridge

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HWY 37 Fixed Bridge

Passing under this bridge you begin your journey up the Napa River. Best to pass through the center


3. High Voltage Towers

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The Towers

The Towers are about 2 - 1/2 miles from the highway 37 bridge. Better to stay to the left of center between the high voltage power lines.

CAUTION: There is a red buoy to the right of center marking a sunken vessel.


4. Marker 7 Green

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Wide Waters, Narrow Channel!

About 1 - 1/2 miles from the towers. This is where you need to pay attention. The channel is deceiving with this huge body of water and a narrow channel. Approach this marker no closer than 50 yards to your portside.


5. Marker 13 Green

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Marker 13 Green… you’re now 2 miles away!

Approximately 1 - 3/4 miles from Marker 7. When you approach this marker and begin to see homes on the left side of the river, you will have 2 miles to go before arriving at Napa Valley Marina


6. Brazos Train Bridge

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Click Image for Larger View

You have about 3/4 of a mile to go.

Vertical clearance is 97 feet. This bridge is always in the up position unless there is a train passing through. If it is down just be patient as you are almost there. You have about 3/4 of a mile to go. You will see palm trees in the distance marking the entrance.


7 Napa Valley Marina Entrance!

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Click Image for Larger View

Careful there is a shoal on either side of the entrance.


Careful as there is a shoal on either side of the entrance. Gas and diesel pumps immediately to the left of entrance. There is 400 linear feet of guest dock beyond the two sets of covered slips.

You are welcome to park your vessel on either side of the guest dock. Remember not to cut the corners of the entrance. It's always better to come with a flood tide. A minus tide will not be favorable for a keeled vessel.