Showing posts with label spike. Show all posts
Showing posts with label spike. Show all posts

Tuesday, November 8, 2016

TVA Survey Mark Mag Spike


The 8,000 feet long Kentucky Dam is a TVA project on the Tennessee River that was designed for many uses including electricity generation, commercial navigation and flood control. On top of the dam is this survey marker. Apparently to make it easier to sight, a layer of bright orange paint marks the survey spike's location. Its not hard to miss.

Monday, June 27, 2016

An American Railroad - Mixture of Media


Shiny rails indicate a still active rail line passing through Vinton, Iowa. The old Vinton Depot is a favorite photo target and is now a historical museum. The depot building, which was once part of the Rock Island Line, will be featured in a future posting but for now I am quite taken by the detail in this image.

On a rail bed, called ballast and made up of hard rocks typically quartzite, is an almost submerged cedar or Douglas fir tie. Upon the tie is an iron brace which shores up the rail line. Two railroad spikes anchor the brace on the exterior of the track. There is an interior brace and spikes opposite the exterior brace however they cannot be seen from this viewpoint.

One can often find spent spikes or brackets along the tracks, garage sales, thrift shops or as repurposed artwork. Technically these items belong to the railroad and are often rounded up near the tracks and hauled away for salvage.