File:Dredged material is deposited downstream of the McAlpine Locks (9420437666).jpg
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![File:Dredged material is deposited downstream of the McAlpine Locks (9420437666).jpg](https://upload.wikimedia.org/wikipedia/commons/thumb/6/6b/Dredged_material_is_deposited_downstream_of_the_McAlpine_Locks_%289420437666%29.jpg/798px-Dredged_material_is_deposited_downstream_of_the_McAlpine_Locks_%289420437666%29.jpg?20131111064519)
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[edit]DescriptionDredged material is deposited downstream of the McAlpine Locks (9420437666).jpg | Ohio River channel maintenance dredging began on July 22 at Louisville and was completed on July 25. The contractor's floating plant consisted of the Dredge Bill Holman, the Robert T, a shop barge, a spill barge and the floating pipeline section. Motor vessels Lenard and Buddy assisted. Both the upstream and downstream channel at McAlpine Locks were successfully dredged which maintains the required nine-foot navigable channel. Tows with barges need at least nine feet of depth to lock through to subsequent pools on the Ohio River. The dredging was a 24/7 operation. During dredging, material is churned up from the river bottom and ran through a floating pipeline. It then reaches equipment that deposits the sand, silt and other material near and on the shoreline. In the foreground of the picture is the dredge operation. In the background is the material being discharged. The second picture illustrates the dredged material. |
Date | |
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Dredged material is deposited downstream of the McAlpine Locks
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Author | U.S. Army Corps of Engineers from USA |
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This image, originally posted to Flickr, was reviewed on 11 November 2013 by the administrator or reviewer File Upload Bot (Magnus Manske), who confirmed that it was available on Flickr under the stated license on that date. |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 06:45, 11 November 2013 | ![]() | 1,800 × 1,352 (1.8 MB) | File Upload Bot (Magnus Manske) (talk | contribs) | Transferred from Flickr by User:AlbertHerring |
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This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D200 |
Exposure time | 1/2,500 sec (0.0004) |
F-number | f/5.6 |
ISO speed rating | 400 |
Date and time of data generation | 12:31, 24 July 2013 |
Lens focal length | 300 mm |
Short title |
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Author | LouisvilleUSACE |
Image title |
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Width | 3,872 px |
Height | 2,592 px |
Bits per component |
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Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 300 dpi |
Vertical resolution | 300 dpi |
Software used | Adobe Photoshop CS5 Windows |
File change date and time | 11:23, 25 July 2013 |
Y and C positioning | Co-sited |
Exposure Program | Aperture priority |
Exif version | 2.21 |
Date and time of digitizing | 12:31, 24 July 2013 |
Meaning of each component |
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Image compression mode | 2 |
APEX shutter speed | 11.287712 |
APEX aperture | 4.970854 |
APEX exposure bias | 0 |
Maximum land aperture | 5 APEX (f/5.66) |
Metering mode | Spot |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 49 |
DateTimeOriginal subseconds | 49 |
DateTimeDigitized subseconds | 49 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 450 mm |
Scene capture type | Standard |
Scene control | Low gain up |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 2.2.0.0 |
Subject distance | 4,294,967,295 meters |
Image width | 1,800 px |
Image height | 1,352 px |
Lens used | 70.0-300.0 mm f/4.0-5.6 |
Date metadata was last modified | 18:23, 1 August 2013 |
Rating (out of 5) | 1 |
Unique ID of original document | xmp.did:8186A4173BF5E211A184A73116A29C0B |
Type of media | Photo |
Keywords |
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IIM version | 2 |