Crews rebuild shoulder of Hoit Road in Concord after collapse

  • An excavator puts down a ready made retaining wall as city workers replace a section of Hoit Road in East Concord on Monday, April 5, 2021 after a washout of the Hackett Brook caused a sink hole and safety issue along the bridge above the brook. GEOFF FORESTER—Monitor staff

  • An excavator lifts a ready made retaining wall as city workers replace a section of Hoit Road in East Concord on Monday, April 5, 2021 after a washout of the Hackett Brook caused a sink hole and safety issue along the bridge above the brook. GEOFF FORESTER—Monitor staff

  • Concord city workers put in a ready made retaining wall as they replace a section of Hoit Road on Monday, April 5, 2021 after a recent washout of Hackett Brook created a sinkhole and safety hazard. The workers planned on re-opening the roadway by the end of the day. GEOFF FORESTER—Monitor staff

  • Concord city workers are directed by Road Crew Supervisor Tyler Tommila (white helmet) as they put in a ready made retaining wall to replace a section of Hoit Road on Monday, April 5, 2021 after a recent washout of Hackett Brook created a sinkhole and safety hazard. The workers planned on re-opening the roadway by the end of the day. GEOFF FORESTER—Monitor staff

  • Concord city workers put in a ready made retaining wall as they replace a section of Hoit Road on Monday, April 5, 2021 after a recent washout of Hackett Brook created a sinkhole and safety hazard. The workers planned on re-opening the roadway by the end of the day. GEOFF FORESTER—Monitor staff

  • Tyler Tommila, road crew supervisor for East Concord, guides a ready made concrete retaining wall iinto place as the city work crew repairs a section of Hoit Road after a recent washout of Hackett Brook on Monday, April 5, 2021. The crew was going to be finished on the repair by the afternoon and re-open the roadway. GEOFF FORESTER—Monitor staff

By Monitor staff
Published: 4/5/2021 1:48:12 PM

A section of Hoit Road between Tallant Road to Graham Road was closed Monday to repair a culvert over Hackett Brook after a resident notified the city of what they thought was a sinkhole. 

“Last week we got a request from our ‘See, Click, Fix’ app, a new app for citizen inquiries, saying there was a sinkhole out here on Hoit Road by this box culvert, so we ran out to investigate and we noticed that one of the wing walls had tipped over into the brook,” said Tyler Tommila, road crew supervisor for East Concord. “Part of the road had fallen in next to the guardrail.” 

A wing wall is an angled wall adjacent to the bridge that directs the flow of water.

 The damage was likely caused by spring rains and snow melt.

“We came up with a plan that we were going to have to put some kind of retaining wall in here so we wouldn’t have any further safety issues,” Tommila said. “It was a huge safety issue what we had going on.” 

The city crew removed a section of pavement and dug a sloped trench to work safely while rebuilding the wall. 

The city used an interlocking Redi-Rock retaining wall system engineered to support the load of the road and traffic. 

Tommila said he expected the road to be open by the end of Monday, but clean-up work would continue Tuesday. All new guardrail will be going in later once it’s available from the guardrail contractor, in the meantime, Jersey barriers will be installed along the road. 

The city launched the See, Click, Fix reporting tool app earlier this year. The app uses a series of forms to report issues ranging from potholes and “dead animal in road,” to illegal dumping and broken parking meters, or to request a backflow device test from the water department and reporting “criminal issues” to the police. Submissions are automatically be directed to the appropriate Concord city staff.

 




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