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Tunnels, Houston

3.2
The Washburn Tunnel is a two-lane underwater motor-vehicle tunnel connecting Galena Park and Pasadena, two suburbs of Houston, Texas. Completed in 1950, it travels north-south underneath the Houston Ship Channel. It was named after Harris County, Texas Auditor Harry L. Washburn. It is the largest and first toll-free vehicular tunnel in the Southern United States.OverviewMerritt Chapman and Scott Corporation of New York engineered the $7 million project. First, a trench 90x40 feet had to be dug. Second, these sections had to be locked into position 85 feet underwater. Finally, the last touches, such as tiling the inside, were completed.It is the only underwater vehicle tunnel currently in operation in the state, as the Baytown Tunnel was replaced in 1995 by a bridge. The tunnel consists of a single bore, 895 meters (2,909 feet) in length, with a six-percent roadway grade outward from the center towards each exit. Forced transverse ventilation is potentially provided by three automatic high-speed Westinghouse Sturtevant blower fans located in a tower at the north entrance. These fans are designed to keep the air free from high-levels of carbon monoxide.In the event of electrical failure, a generator can support the electrical needs of the tunnel. Every twelfth light is powered by a generator. The light intensity at the portals is three times brighter than the interior. This prevents temporary blindness when entering the tunnel.
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Tunnels Reviews
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TripAdvisor Traveler Rating 3.5
127 reviews
Google
4.2
TripAdvisor
  • If you are ever in downtown Houston during the business day, the tunnels are a great place to get breakfast and/or lunch.  more »
  • In Houston Downtown for a "City" beneath the buildings. The access occurs through the lobbies of buildings. There is no signage. Just enter the building and soon realizes a ladder that leads to the basement. There you can view shops, cafeterias and restaurants. We found interesting because we were in the winter and under the city, in the tunnels, for heating and one can walk in comfort.
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  • Cool place for shops and food. Pretty big, we walked quite a bit. Cool tourist thing to do. Especially for shopping.  more »
Google
  • I like it a bit out of the way, but cheaper than the beltway
  • Historic , far to many take for granted .
  • It's was cool kids enjoyed it
  • Lived in Houston all my life and today was the first I seen and drove thru it! Short but awesome!
  • Good tunel

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14 days in United States BY A USER FROM INDIA July, popular PREFERENCES: July ATTRACTION STYLE: Popular PACE: Medium 30 days in Houston BY A USER FROM UNITED STATES September, historic sites, museums, slow & easy, popular PREFERENCES: September, historic sites, museums ATTRACTION STYLE: Popular PACE: Slow & easy 12 days in Texas BY A USER FROM UNITED STATES July, popular PREFERENCES: July ATTRACTION STYLE: Popular PACE: Medium 32 days in Houston & San Francisco SEE PLAN April, culture, popular PREFERENCES: April, culture ATTRACTION STYLE: Popular PACE: Medium 7 days in United States BY A USER FROM UNITED STATES July, kids, culture, outdoors, romantic, historic sites, popular PREFERENCES: July, kids, culture, outdoors, romantic, historic sites ATTRACTION STYLE: Popular PACE: Medium 18 days in Houston BY A USER FROM ARGENTINA April, culture, outdoors, relaxing, beaches, historic sites, museums, shopping, wildlife, fast-paced, popular & hidden gems PREFERENCES: April, culture, outdoors, relaxing, beaches, historic sites, museums, shopping, wildlife ATTRACTION STYLE: Popular & hidden gems PACE: Fast-paced 47 days in Houston & New York City BY A USER FROM INDIA October, kids, popular PREFERENCES: October, kids ATTRACTION STYLE: Popular PACE: Medium 47 days in Houston BY A USER FROM INDIA October, popular & hidden gems PREFERENCES: October ATTRACTION STYLE: Popular & hidden gems PACE: Medium 21 days in Houston BY A USER FROM UNITED STATES March, popular PREFERENCES: March ATTRACTION STYLE: Popular PACE: Medium 31 days in Houston BY A USER FROM SAUDI ARABIA April, culture, outdoors, historic sites, museums, wildlife, popular PREFERENCES: April, culture, outdoors, historic sites, museums, wildlife ATTRACTION STYLE: Popular PACE: Medium 31 days in Houston BY A USER FROM GREECE May, relaxing, beaches, historic sites, shopping, wildlife, popular PREFERENCES: May, relaxing, beaches, historic sites, shopping, wildlife ATTRACTION STYLE: Popular PACE: Medium 8 days in Houston BY A USER FROM UNITED KINGDOM May, culture, historic sites, hidden gems PREFERENCES: May, culture, historic sites ATTRACTION STYLE: Hidden gems PACE: Medium
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