Mysterious Timbers Unearthed At Sully

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You never know what might turn up. Miss Utility is always warning us not to dig without checking where utility lines lay. And as we well know, in this historic Chesapeake area, something valuable may be there.

There’s a new sewer line being laid near the new Sully Historic Site Visitor Center. On December 19, 2013, the Park Authority’s Cultural Resource Management and Protection Branch (CRMPB) received a curious and inviting message from the installation site. Senior Archaeologist Chris Sperling went to check it out.

After an initial reconnaissance, he set aside a day to record his findings. In the words of the cultural resource professionals, the excavation of the sewer trench impacted an archaeological feature.

In short, they found something.

What they found was another trench, generally oriented along a southwest – northeast axis.  The crew excavating the sewer trench ceased working after noticing metal roofing and wooden logs in the ground and contacted the CRMPB.  Chris found that construction debris at the base of the discovered trench contained logs and modern (within the last 75 years) roofing materials.  However, there also were large, hand-hewn timbers, including one with a mortise and tenon joint.  There were “voids” below the logs and timbers, which suggests that the trench goes deeper into the ground than what could be seen.

The critical part of this discovery is that the construction technique of these hand-hewn timbers has not been much used in the past 100 years and hasn’t been common for 200 years.  The timbers are inconsistent with the rest of the deposit, which also contained a 1960 penny.

Chris’ first guess about the area is that sometime in the mid-20th century a ditch or gully was filled to grade. There were areas where the logs, timbers and roofing materials were covered with plastic, and the plastic had approximately three feet of “clean” fill dirt placed on top of it.  The logs and roofing are contemporary, but the timbers must have come from a historic structure.  Where that structure was, and what it was, cannot be determined.

If we assume that the timbers came from a structure that was located on that spot, whatever was there likely was there in the early years of Sully Historic Site.

Sully Historic Site Manager Carol McDonnell noted that the find is around the site’s 18th century barnyard, so those timbers may have been ones that were saved, but it would be hard to place what structure they came from.  A total excavation of the barnyard area is among the future plans for Sully, but there’s no funding for it at this time.

The excavation crew did not need to dig deeper, so Chris asked for a layer of stone to be placed above the discovery and that the sewer be laid on top of the stone.  Although that means no more searching at this time, it also means Chris’ records will show where this feature is so that any future workers in the area will know it’s there before they start digging.

Chris’s early notes cite the excavation crew and their managers for taking the time to call the CRMPB office and allowing cultural resource staffers to do what was needed. As a result, something was found, and nothing significant was impacted.

For the time being, we know that some structure was there, and we’ve opened the door for someone in the future to have some fun digging up a piece of the past that isn’t going anywhere.

This blog was compiled from notes written by Fairfax County Park Authority Senior Archaeologist Chris Sperling.

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About Fairfax County Park Authority

HISTORY: • On December 6, 1950, the Fairfax County Board of Supervisors created the Fairfax County Park Authority. The Park Authority was authorized to make decisions concerning land acquisition, park development and operations in Fairfax County, Virginia. • To date, 11 park bond referenda have been approved between 1959 and 2008. Another Park Bond Referendum will be held in November 2012. Today, the Park Authority has 420 parks on approximately 23,168 acres of land. We offer 371 miles of trails, our most popular amenity. FACILITIES: The Park System is the primary public mechanism in Fairfax County for the preservation of environmentally sensitive land and resources, areas of historic significance and the provision of recreational facilities and services including: o Nine indoor RECenters with swimming pools, fitness rooms, gyms and class spaces. Cub Run features an indoor water park and on-site naturalist. o Eight golf courses including Laurel Hill, our newest, upscale course and clubhouse located in Southern Fairfax County o Five nature and visitor centers. Also seven Off-Leash Dog Activity areas o Several lakes including Lake Fairfax, Lake Accotink and Burke Lake, with campgrounds at Burke Lake and Lake Fairfax o The Water Mine Family Swimmin’ Hole at Lake Fairfax, Our Special Harbor Sprayground at Lee as well as an indoor water park at Cub Run RECenter o Clemyjontri Park, a fully accessible playground in Great Falls featuring two acres of family friendly fun and a carousel o An ice skating rink at Mount Vernon RECenter and the Skate Park in Wakefield Park adjacent to Audrey Moore RECenter o Kidwell Farm, a working farm of the 1930s era at Frying Pan Farm Park in Herndon, now with historic carousel o Eight distinctive historic properties available for rent o A working grist mill at Colvin Run in Great Falls and a restored 18th century home at Sully Historic Site in Chantilly o A horticulture center at Green Spring Gardens in Annandale o Natural and cultural resources protected by the Natural Resource Management Plan and Cultural Resource Plans, plus an Invasive Management Area program that targets alien plants and utilizes volunteers in restoring native vegetation throughout our community o Picnic shelters, tennis courts, miniature golf courses, disc golf courses, off-leash dog parks, amphitheaters, a marina, kayaking/canoeing center o Provides 274 athletic fields, including 30 synthetic turf fields, and manages athletic field maintenance services at 500 school athletic fields PARK AUTHORITY BOARD: • A 12-member citizen board, appointed by the Fairfax County Board of Supervisors, sets policies and priorities for the Fairfax County Park Authority. %

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