a2g080: Starboard side of dredge Bill Holman : 無料・フリー素材/写真
a2g080: Starboard side of dredge Bill Holman / Bill Alden
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | Dredging below McAlpine Locks.Starboard side of cutterhead dredge "Bill Holman".The dredge is owned by Luhr Bros., contractor for the U.S. Army Corps of Engineers, which is responsible for maintaining a navigable depth of 9 feet on the river .(The Coast Guard maintains aids to navigation such as buoys, lights and daymarks).Note the day shapes atop the pilothouse.The ball-diamond-ball sequence in the center indicates a vessel restricted in its ability to maneuver.For a dredge, two balls in a vertical line indicate the side on which an obstruction exists.(In this case, the discharge pipe runs from the dredge downstream to its terminus near the riverbank, so vessels cannot pass on that side).Two diamonds in a vertical line indicate the side on which another vessel may pass.(See COLREGs, Part C - Lights and Shapes, Rule 27)K&I Bridge in distance..Ohio River mile 607. Louisville, Kentucky.July 24, 2002.file # a2g080..IMG_0303.Canon PowerShot A40 digital camera.JPEG quality 95. |
| 撮影日 | 2002-07-24 11:11:44 |
| 撮影者 | Bill Alden , Louisville, Kentucky, USA |
| タグ | |
| 撮影地 | Louisville, Kentucky, United States 地図 |
| カメラ | Canon PowerShot A40 , Canon |
| 露出 | 0.003 sec (1/400) |
| 開放F値 | f/4.8 |
| 焦点距離 | 7766.990291 dpi |