Lowering the Caisson into the Pier Casing

Lowering the Caisson into the Casing.
Lowering the Caisson into the Casing.

Click on the image to enlarge it in a new window.

This HDR image shows the 60 foot long caisson as it is being guided, by the Ironworkers and Carpenters, into place inside the pier casing. After placing the caisson the next step will be to fill the pier with concrete. The steel casing sits on the river bottom and then the caisson fits into a rock socket has been bored 30 feet below the casing into the bedrock of the river bottom. This makes the total length on the pier nearly 60 feet from the surface to the base. The iron cylinder is there to both guide the drill during drilling and to form a protective shell for the pier once the bridge is built.

This image is from a three frame bracket set using -2, 0 and +2 EV settings. I merged the bracket set in NIK HDR Efex Pro 2 and because the workers were moving quite a bit I had to apply 80% anti-ghosting to isolate them and remove the ghosts of their arm movement. After merging and some mild tone-mapping in NIK HDR Efex Pro 2 I returned the merged file to Aperture 3 where I completed my processing by adjusting contrast, alignment, sharpening and the individual color channels to achieve the look I wanted for the final image.

2 thoughts on “Lowering the Caisson into the Pier Casing

  1. Thanks, Nick, keep ’em comin’.

    On Fri, Nov 8, 2013 at 6:20 AM, SpeedDemon2 Photography wrote:

    > speeddemon2 posted: ” Click on the image to enlarge it in a new > window. This HDR image shows the 60 foot long caisson as it is being > guided, by the Ironworkers and Carpenters, into place inside the > pier casing. After placing the caisson the next step will be to fill the > pie”

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