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County Board approves $2.5M to replace aging water main below N. Glebe Road

A water main on N. Glebe Road set to be replaced (via Arlington County)

A 96-year-old water main along N. Glebe Road near Ballston is set to be replaced, starting later this year.

The pipe segment runs about a third of a mile from N. Randolph Street to N. Pershing Drive, between the Buckingham and Ashton Heights neighborhoods.

Arlington County says that this work is needed to improve the flow of water to area fire hydrants, dubbed “fire flow,” and support demand in the neighborhood. Over the weekend, the Arlington County Board approved a contract for $2.1 million with A&M Construction Corporation to execute the project.

The county included some $424,400 in contingency funding in case the contractor finds “unsuitable soils or unknown existing underground utilities,” among other risks, according to a county report.

This project is “part of [the] county’s effort to replace old unlined cast iron pipes which are subjected to internal and external corrosions that reduce the fire flow capacity,” the document said. “In the past few years, the main had an excessive number of breaks that prompted the need for replacement.”

Arlington Dept. of Environmental Services spokesman Peter Golkin tells ARLnow that there is currently no construction schedule, “as it takes some time for [the purchasing department] to execute such a contract.”

“But based on previous comparable projects, this one won’t begin until this summer and more likely in the fall,” he said.

Golkin says the county expects the work will take 1.5 years to complete and will affect 26 properties: 19 residential and seven commercial.

“Water interruptions will be coordinated in advance with those impacted,” he said.

The replacement work will require single-lane closures on Glebe from 9:30 a.m. to 3 p.m. Monday through Thursday and 9:30 a.m. to 2 p.m. on Friday.

Crews will likely work overnight once they reach an intersection. More information on these traffic impacts will be relayed to residents via the project website, which will launch closer to the start of construction, and through the Buckingham and Ashton Heights civic associations, per the county.

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