(e.g. yourname@email.com)

Forgot Password?

    Digital Visual Information Distribution System Logo

    USACE innovations increase fish survivability on the Snake and Columbia rivers [Image 1 of 4]

    Issued by: on
    VIRIN:
    Date Created:
    City:
    State:
    Country:
    Workers on a work boat are handling a large circular yellow-framed equipment piece, likely a cable reel guard or diffuser assembly, being lowered by crane onto the vessel deck. The scene appears to be a marine construction or utility installation operation on a waterway. At least three workers in safety gear are actively guiding and securing the equipment.

    UMATILLA, OREGON, UNITED STATES

    05.06.2026

    Photo by Elijah Wittum 

    U.S. Army Corps of Engineers Walla Walla District

    Staff from the U.S. Army Corps of Engineers, Walla Walla District hoist a new bubbler system onto a vessel for installation on the upstream approach wall at Lower Monumental Dam. This technology cools fish ladder water temperatures to encourage species to continue migrating during spawning. It replaces an older chimney method that, while effective, was significantly more expensive and labor-intensive than the new bubbler system.

    IMAGE INFO

    Date Taken: 05.06.2026
    Date Posted: 06.29.2026 11:41
    Photo ID: 9768345
    VIRIN: 260506-A-GA333-1008
    Resolution: 4528x3016
    Size: 3.44 MB
    Location: UMATILLA, OREGON, US
    Web Views: 9
    Downloads: 2

    PUBLIC DOMAIN  

    This work, USACE innovations increase fish survivability on the Snake and Columbia rivers [Image 4 of 4], by Elijah Wittum, identified by DVIDS, must comply with the restrictions shown on https://www.dvidshub.net/about/copyright.

    GALLERY

    Workers on a work boat are handling a large circular yellow-framed equipment piece, likely a cable reel guard or diffuser assembly, being lowered by crane onto the vessel deck. The scene appears to be a marine construction or utility installation operation on a waterway. At least three workers in safety gear are actively guiding and securing the equipment.
    The image shows a body of water with a white spherical floating device visible in the upper left area. A large circular or arc-shaped disturbance is visible beneath the water surface, appearing as a greenish-white cloudy mass, likely caused by aeration, bubbling, or a submerged mechanism. Aquatic vegetation or debris is visible along the lower left edge of the frame.
    A Grove mobile crane is lifting a large circular yellow-and-black mechanical component, likely a turbine screen or fish guidance structure, at what appears to be a dam or hydroelectric facility. Workers wearing hard hats are guiding the suspended load using tag lines, while a spotter stands on the crane observing the operation. The setting features arid hillside terrain in the background, consistent with the Columbia River basin region.
    This is a 3D computational fluid dynamics (CFD) or thermal simulation visualization showing temperature distribution within a rectangular volume or room. The color gradient ranges from blue (coolest, ~65°F) at the lower portions to red (warmest, ~73°F+) at the top, illustrating thermal stratification. Two labeled features — 'S Ladder Exit' and 'S Diffuser Intake' — indicate specific airflow or ventilation points within the modeled space.

    MORE LIKE THIS

    ASSOCIATED NEWS

    USACE innovations increase fish survivability on the Snake and Columbia rivers

    In feat of engineering precision, massive concrete beams placed at Chickamauga Lock as Upstream Approach Wall Contract reaches major milestone

    CONTROLLED VOCABULARY KEYWORDS

    No keywords found.

    TAGS

    Dam
    Salmon
    Lock
    Lower Monumental
    Fish

    OPTIONS

  •   Register/Login to Download
  •   Validate Your Account to Download
  •   Connect My Placements
  •   Download Photo
  •   Download Gallery
  •   Add to My Albums
  •   Create TinyURL
  •   Connect to Placements
  •   Add to Playlist
  •   Distribute Photo
  •   Schedule Social Post
  •   Edit Photo
  •   Add Gallery to Playlist
  •   Distribute Gallery