File:Cover Sheet and Site Plan - Bear Trap Dam, State Route 115, Stoddartsville, Luzerne County, PA HAER PA-646 (sheet 1 of 4).tif
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Cover Sheet and Site Plan - Bear Trap Dam, State Route 115, Stoddartsville, Luzerne County, PA | |||||
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Photographer |
Buehner, Timothy A. |
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Title |
Cover Sheet and Site Plan - Bear Trap Dam, State Route 115, Stoddartsville, Luzerne County, PA |
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Description |
White, Josiah |
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Depicted place | Pennsylvania; Luzerne County; Stoddartsville | ||||
Date |
1986 date QS:P571,+1986-00-00T00:00:00Z/9 |
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Dimensions | 24 x 36 in. (D size) | ||||
Current location |
Library of Congress Prints and Photographs Division Washington, D.C. 20540 USA http://hdl.loc.gov/loc.pnp/pp.print |
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Accession number |
HAER PA-646 (sheet 1 of 4) |
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Credit line |
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Notes |
Developed by Josiah White and patented in 1819, the Bear Trap Dam was a hydraulic lock. Water was allowed to flow into the chamber where it was trapped and channeled under the gates, causing the gates to rise and impede the river flow. As the water pooled, loaded wooden arks 85 feet long and 14 feet wide were positioned behind the dam, awaiting passage. When the pool was sufficient, the water in the chamber was released causing the gates to drop and create an artificial freshet which the arks rode downstream to the next lock or dam. At the end of the journey, the arks were dismantled and sold for lumber. The advent of the railroad and the seasonal flooding of the Lehigh River Valley during the mid-1800's brought the demise of slack water navigation and the Bear Trap Dam.
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Source | https://www.loc.gov/pictures/item/pa4124.sheet.00001a | ||||
Permission (Reusing this file) |
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Other versions |
Object location | 41° 07′ 46.99″ N, 75° 37′ 42.99″ W | View this and other nearby images on: OpenStreetMap | 41.129720; -75.628609 |
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 09:25, 1 August 2014 | 14,432 × 9,600 (702 KB) | Fæ (talk | contribs) | GWToolset: Creating mediafile for Fæ. HABS 31 July 2014 (3000:3200) |
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Width | 14,432 px |
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Height | 9,600 px |
Compression scheme | CCITT Group 4 fax encoding |
Pixel composition | Black and white (White is 0) |
Orientation | Normal |
Number of components | 1 |
Number of rows per strip | 4 |
Horizontal resolution | 400 dpi |
Vertical resolution | 400 dpi |
Data arrangement | chunky format |