File:Dredge Bill Holman works for Army Corps of Engineers at McAlpine Locks, Louisville, Ky..jpg
Original file (2,244 × 1,500 pixels, file size: 1.79 MB, MIME type: image/jpeg)
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Summary
[edit]DescriptionDredge Bill Holman works for Army Corps of Engineers at McAlpine Locks, Louisville, Ky..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 | |
Source | Dredge Bill Holman works for Army Corps of Engineers at McAlpine Locks, Louisville, Ky. |
Author | LouisvilleUSACE |
Licensing
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This image was originally posted to Flickr by LouisvilleUSACE at https://www.flickr.com/photos/37721397@N06/9372832758. It was reviewed on 16 February 2014 by FlickreviewR and was confirmed to be licensed under the terms of the cc-by-2.0. |
16 February 2014
Public domainPublic domainfalsefalse |
This image or file is a work of a U.S. Army Corps of Engineers soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 02:38, 16 February 2014 | 2,244 × 1,500 (1.79 MB) | Geo Swan (talk | contribs) | {{Information |Description=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 float... |
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Metadata
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 | 1/125 sec (0.008) |
F-number | f/8 |
ISO speed rating | 100 |
Date and time of data generation | 12:08, 24 July 2013 |
Lens focal length | 29 mm |
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 | 11:19, 25 July 2013 |
Y and C positioning | Co-sited |
Exposure Program | Shutter priority |
Exif version | 2.21 |
Date and time of digitizing | 12:08, 24 July 2013 |
Meaning of each component |
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Image compression mode | 2 |
APEX shutter speed | 6.965784 |
APEX aperture | 6 |
APEX exposure bias | 0 |
Maximum land aperture | 3.9 APEX (f/3.86) |
Metering mode | Spot |
Light source | Unknown |
Flash | Flash did not fire |
DateTime subseconds | 24 |
DateTimeOriginal subseconds | 24 |
DateTimeDigitized subseconds | 24 |
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 | 43 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
GPS tag version | 2.2.0.0 |
Lens used | 18.0-70.0 mm f/3.5-4.5 |
Date metadata was last modified | 07:19, 25 July 2013 |
Unique ID of original document | xmp.did:62895A943DF5E211BB2AC68C33321397 |