A compact track loader distributes clay as work continued on the rehabbing of this detention pond at the Shenandoah County landfill in Edinburg last week. Bushong Contracting Corporation of Woodstock replaced a culvert and is rebuilding the berm of the pond at a cost of $140,000.

Construction crews continue to work on a water retention pond at the Shenandoah County landfill.

Shenandoah County Director of Public Services Patrick Felling said last week that the contractor expects to complete work on the retention pond near Edinburg by Christmas.

The pond stopped releasing collected water as it was designed to do after heavy rainfall from storms that came through the area in June and July, Felling reported to the Board of Supervisors in late summer. Water initially overflowed the berm around the pond, prompting county workers to use mobile pumps to bring down the level, Felling recalled in an email last week.

As Felling reported to the board, his agency investigated, with the help of the Woodstock Department of Public Works and its pipe camera, and found that the culvert under the berm had collapsed, likely under the weight of the wet, heavy soil. Only a slight trickle of water could flow through the collapsed culvert, Felling said.

The county also worked with the Virginia Department of Environmental Quality, an effort stemming from the landfill’s operation under a DEQ-approved industrial stormwater permit, Felling said in the email. Felling praised the initiative as a “great example of collaboration between government agencies.”

Work began in mid-September and, by the end of last week, the contractor, Bushong Contracting Corporation, had replaced the culvert and rebuilt the berm, according to Felling.

The project hit some snags that caused delays and increased the price. The unexpected costs increased the cost to roughly $140,000, Felling said.

The saturated soil prompted workers to perform more tests to make sure they could safely excavate the berm, according to Felling. That occurred before workers discovered that the collapsed culvert included part of the pipe that went into the pond’s concrete riser, Felling said. The contractor and county officials did not anticipate the extra work needed to complete the project, Felling added. Workers needed dry weather to move forward with the project, Felling said.

Contact Alex Bridges at abridges@nvdaily.com