Friday, February 13, 2015

Scott's project in Spain

When we are in Spain, Scott will be working at Morón Air Base, which is about 30 miles southeast of Seville.  Moron AB is a Spanish Air Force base that hosts a US Air Force wing and a US Marines unit.  The Spanish fly jets, the US Air Force uses the base as a refueling station/stopover location and the marines fly osprey aircraft.  Under the agreement between the Spanish and the American militaries, the US Air Force is repairing Taxiway A and improving the infield drainage.   Scott's company has a $6.2 million contract to design and do the construction work.

Back in May, Scott travelled to Spain and put together a team to bid the project and prepare the proposal. Scott's company has an office in Madrid, Spain that is currently designing the project and Scott has hired a local construction firm, Eiffage, to build the project.  The team is currently working on the design and will begin the construction in late March/early April.  Scott is the Project Manager and is responsible for getting the work done safely, on time and under budget.  Typically for a project like this, Scott would manage the project from Denver and assemble a field team to oversee the construction.  For this project, Scott volunteered to lead the field team to oversee the construction & also keep him in his Project Manager duties.

Taxiway A

Taxiway A is being replaced as it has deteriorated due to age and use.  The weight of the modern airplanes has caused cracking concrete and the taxiway pavement is expensive to maintain.  The existing pavement will be removed and recycled.  The new pavement section will be thicker/stronger to account for current and expected future operations.  

To allow for work to tie into the runway, crews will have to temporarily shorten the runway by over 1,000 feet.  This requires a lot of paperwork and coordination between multiple groups and is time consuming.   At the end of the taxiway work, the runway will be restored to its full length.  The process for shortening a runway is called displacing the threshold.   The threshold bar is basically the start of the runway and contains lights - these lights will be turned off and new lights will have to be installed at the temporary end of the runway.  The process to displace the runway usually takes 2-3 days and requires the closure of the runway.  Since Morón Air Base has only one runway, this is big deal.

Drainage work

Currently, during periods of heavy rains, water collects and ponds in the infield of the airfield close to the runway.  This ponded water attracts birds and other wildlife into the infield.  The birds create a bird strike hazard for the planes and this is a problem.  The water ponding issue is caused by undulating topography and lack of maintenance.  To fix this, Scott's company is developing a fix that will eliminate the ponding water and make the airfield safer for the pilots by eliminating the bird issue.  This will involve moving a tremendous amount of soil so that surface water will sheet flow to the newly installed drainages.  By re-grading the soil, water will not pond, but flow off base to a nearby river.  

Construction work will begin in late March/early April and will start with the drainage work.  This work will continue into the fall.  Taxiway A work will start in late April/early May as the US Air Force has a large mission on-going in April and the runway cannot be shortened until the mission is over.  All pavement work should be finished in August and the Taxiway will be reopened in September once the concrete has reached its full strength.

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