We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.

Posey Tube

Posey and Webester Street, Alameda, CA 94502
Review Highlights

The Posey Tube is a tunnel under water. The lighting in the tunnel is very good. Sadly, there is... read more

Reviewed 1 week ago
Green Cove Springs, Florida
Drive Through Only

Drive through from Oakland to Alameda. It is cool that you are going many feet under water like the... read more

Reviewed 10 August 2017
Joseph L
Read all 36 reviews
Map updates are paused. Zoom in to see updated info.
Reset zoom
Updating Map...
  • Excellent16%
  • Very good19%
  • Average47%
  • Poor5%
  • Terrible13%
Travellers talk about
“two lane” (2 reviews)
“route” (4 reviews)
Suggested Duration: < 1 hour
Posey and Webester Street, Alameda, CA 94502

Similar Things to Do in Alameda

Write a Review
Reviews (36)
Traveller rating
Traveller type
Time of year

1 - 10 of 36 reviews

Reviewed 1 week ago

The Posey Tube is a tunnel under water. The lighting in the tunnel is very good. Sadly, there is no sidewalk. The idea that a tunnel is up for review is, of course, idiotic, but it does show that tunnels are known in the Bay...More

Thank alexwolf2016
Reviewed 10 August 2017

Drive through from Oakland to Alameda. It is cool that you are going many feet under water like the Chunnel. From Alameda to Oakland is the best "view" as this was build back in the 30's. Architects and Engineers will geek out on this but...More

Thank Joseph L
Reviewed 9 August 2017

I travel through the Alameda tube on a daily basis as Alameda is an island. Although the walls are not as clean as I would like, it has done its job of transporting cars from Oakland to Alameda and back for as long as I...More

Thank annY155QJ
Reviewed 10 June 2017

This was a tunnel from Alameda Island to Oakland. It was nothing special but still somewhat interesting.

Thank LLion
Reviewed 26 May 2017

I was a resident of Alameda, until very recently and, drove to Oakland, very often by way of the Posey Tube. I always felt a special feeling for the Posey Tube and find it easy to say, it is one more landmark, for Alamed to...More

Thank Rose F
Reviewed 19 April 2017

Having grown up in Alameda, I've always considered the Tube a way from Point A to Point B, and my last choice for getting out of town. Three bridges and the Tube all lead to Oakland; I prefer to stay above-ground when possible. I never...More

Thank j m
Reviewed 14 September 2016

The Posey... as locals refer to is is the underground tube that connects Oakland with Alameda. It was named after George Posey a Master Surveyor and Engineer who is credited with the planning and construction of the tube in 1928. The tube is said to...More

Thank Bryan B
Reviewed 12 September 2016

The Posey Tube is one of four routes that I know of to leave Alameda Island into Oakland. The Posey is an underwater vehicular and bicycle route tunnel that is I am guessing about a mile long or less? It is open year round and...More

Thank Crystal B
Reviewed 18 August 2016

This is a tunnel that connects Alameda to Oakland. I remember being able to walk through but the sidewalk is now closed. During commuter hours, it can be slow going in a constricted two lane area. When entering the tube from Oakland, you have to...More

Thank Chris D
Reviewed 9 August 2016

This is the northern route from Alameda to Oakland. Not an attraction to stop at, although my boys loved the idea that is was a tunnel and not a bridge over the water.

Thank bsmith6
Nearby Restaurants
Scott's Seafood Restaurant
452 reviews
.46 miles away
Pasta Pelican
120 reviews
.29 miles away
Forge Pizza
150 reviews
.48 miles away
207 reviews
.43 miles away
Nearby Attractions
San Francisco Bay Ferry
174 reviews
.57 miles away
Jack London Square
653 reviews
.49 miles away
USS Potomac
68 reviews
.58 miles away
Questions & Answers
Get quick answers from Posey Tube staff and past visitors.
Note: your question will be posted publicly on the Questions & Answers page.
Posting guidelines