Nags Head to explore stretching sand project to KDH line

When it adds more sand to its shoreline, possibly as early as 2018, Nags Head wants to expand the project north to the city line and beef up the beach on the southern end, where erosion is at its worst.

Because the maintenance job could add significant changes to the orginal one completed in 2011, the town is required by law to put it out for bids rather than simply extend it with the current contractor.

Ever since Nags Head set out in 2010 to pursue its own beach nourishment project, Coastal Science and Engineering has led the effort.

BeachNourishment

By Coastal Science’s calculations, the project has been highly successful, retaining most of the 3.6 million cubic yards of new sand within the shoreline system, which is described as running from the base of the duneline out to a depth of 19 feet.

That area encompasses where the Federal Emergency Management Agency looks to see if a project has lost enough sand after a named storm to qualify for remimbursement to replace it.

Some areas have fared better than others, however, with the southern end seeing significant erosion, the northern end gaining more sand and a few areas in between losing more than expected.

The law allows the town to contract with the most qualified company after bidding rather than basing the award solely on cost. But it cannot extend a contract of more than $50,000 unless it is basically a continuation of the previous work.

In a presentation to the Board of Commissioners last week, the town’s on-staff project coordinator, David Ryan, proposed looking for qualifications that would include:

  • A design that takes into account an integrated dune enhancement and management plan.
  • A design that considers the most effective and practical approach along the southern limits.
  • Consideration of life-cycle costs such as construction, operations and maintenance to be factored into the design.
  • An approach that either permits or provides practical recommendations on addressing significant erosion hotspots in between nourishment maintenance efforts.
  • A design that considers the northern end of Town, the section not previously nourished, for inclusion in nourishment maintenance projects and/or to coincide with future Dare County nourishment work.
  • Consideration of innovative technology to help with periodic monitoring efforts and storm damage estimates to apply for potential FEMA Aid.

Kill Devil Hills, Kitty Hawk and Duck are planning nourishment projects that are expected to start next year.

The board must approve putting out a request for qualifications. It will consider what to include at its February meeting.

Also last week, the board agreed on the need for an ordinance to ban sandbags on the beach. New state legislation eased some of the restrictions.

 

source: Rob Morris, Outer Banks Voice

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