On August 23, 2023

$2.8M culvert replacement on Route 4 to continue into fall

 

Staff report

Traffic is reduced to one lane on a portion of Route 4 as a sewer line is moved and an existing pipe culvert is replaced with a concrete box culvert near Spring Hill Road in Killington. 

The $2.8 million project, which started in June, is expected to be done this fall. 

The contractor, J.P. Sicard, Inc., is currently moving an existing sewer line deeper and higher uphill to accommodate the larger culvert, which will be about 12 feet long and 8 feet high.

The sewer line will be encased in a metal sleeve under the culvert in case it needs to be replaced in the future. 

The contractors are also moving the new culvert about 30-40 feet downhill and constructing new channels to maintain flow inside the existing culvert during construction.

“That took some coordination with engineers,” Agency of Transportation Project Manager James McCarthy said.

The previous culvert, a 6-foot long asphalt-coated galvanized pipe, constructed in 1965, had a rating of 3 and was in “serious” condition for 10 years, according to the Agency of Transportation. 

While most culverts in the state are inspected every five years, this one was inspected every year due to its deteriorating condition.  

“Quite often we see sinkholes when the culverts get into that condition,” McCarhy said. “Typically, there’s a lot of perforations in the bottom of it, the galvanizing wears off.”

The new concrete box culvert is currently being pre-fabricated in New Hampshire and will be installed under phased construction.

“They will excavate and put in half the concrete box and then put the traffic on top of the concrete box and do the other half,” McCarthy said.

The Agency of Transportation evaluated alternatives for rehabilitation or replacement of the bridge in an engineering study completed in March 2020. This study assessed  the right-of-way, hydraulics and community concerns. The agency  considered installing a culvert invert, a spray-on liner, a new four-sided box culvert and a new concrete rigid frame.  

“Given the age of the structure, site constraints, existing geometry, and current conditions, the engineering study recommended a full replacement with a concrete box culvert,” according to the Agency of Transportation website, vtrans.vermont.gov.

Do you want to submit feedback to the editor?

Send Us An Email!

Related Posts

Large turnout for Hartland school budget info session

May 23, 2024
By Curt Peterson The May 21 Hartland school budget information session may be the best-attended school board gathering in recent history — an estimated 40 people attended in person at Damon Hall in Hartland, and another 41 tuned in online. Hartland voters had already approved the $11,040,567 budget 320-311 on April 2. But a petition…

United Way of Rutland County names new exc. director

May 22, 2024
The United Way of Rutland County (UWRC) announced the appointment of Tina Van Guilder as its new executive director, May 17.  Van Guilder officially assumed her role as executive director May 6. With over seven years of direct non-profit leadership experience in the Rutland County area, coupled with recent roles focusing on grant coordination, budget…

20 degrees above average: May temps soar

May 22, 2024
By Erin Petenko/VTDigger Vermont is forecast to hit temperatures in the upper 80s Tuesday and Wednesday, far above normal for this time of year, the Vermont branch of the National Weather Service reported on Monday, May 20. Parts of the state, particularly the Champlain Valley down to Rutland in the west and the Connecticut River Valley regions to…

Gov. Scott vetoes bill that would’ve restricted bee-killing pesticide

May 22, 2024
Staff report On Monday, May 20, World Bee Day, Gov. Phil Scott vetoed legislation meant to protect bees and other pollinators from a widely-used neuorotoxic pesticide. The bill (H.706) would  eliminate most uses of neonicotinoid pesticides (neonics) in Vermont, which have been associated with alarming losses of managed and wild bee populations. Neonic insecticides are used on…