Bennington By-Pass, VT Rte. 279

The Bennington By-Pass Project, known as VT Route 279, is the Route 7, North/South, and Route 9, East/West, by-pass of downtown Bennington VT. There were four projects that comprised the northeast quadrant of this by-pass. J.A.McDonald, Inc. constructed two of the four projects, known as the Bennington AC NH 091-1(53) and (54) projects.

The Bennington (53) project was completed August 15, 2010, at a contract value of $21,779.60 and the Bennington (54) was completed August 15, 2012 at a contract value of 18,095.40.

The work performed on these projects included major earth and rock excavation, drainage, subbase and pavement, construction of two new bridges and rehabilitation of three other bridges.

The (53) project included a 470 ft. multi-span bridge over Furnace Brook and a 253 ft muti-span bridge on East Road over VT Rte 279. The Furnace Brook Bridge had a center pier that was 90ft high from the bottom of the footing to top of the pier cap. The structural steel for this bridge was curved and had a web height in excess of 9ft, making this steel the deepest webbed steel currently utilized on any bridge structure in the State of Vermont.

Major items of Work Performed:

Earth Excavation = 565,000cy; Solid Rock Excavation = 185,250cy; Sub base Materials = 66,820cy; Drainage and Utility Installations = 19,632 lf; Concrete = 4070cy; Reinforcing Steel = 703,707 lbs; Structural Steel = 2,316,483 lbs.

The (54) Project consisted of reconstructing the northerly clover-leaf intersection of Vt. Rte. 279. This project consisted of On-Ramps, Off-Ramps , and Slip-Ramps. The Ramps are alphabetized from 'A' to 'R', yes there were a total of 18 Ramps on this project. Maintaining Traffic with a well implemented Traffic Control Plan was peri-mount. Three bridges were also rehabilitated, complete with painting of structural steel.


Project Highlights:

 1. JAM presented a Value Engineering proposal for solid rock excavation at the Exit 2 location that was accepted by VTrans - this VE proposal represented a 20% cost savings on the solid rock excavation item.

2. JAM presented a VE proposal for the reinforced earth wall at abutment #!, of the Furnace Brook Bridge that was accepted by VTrans. This represented a 10% cost savings on the construction of abutment #1.

3. JAM achieved substantial completion one year in advance of final completion on the (53) project.

In recognition of its achievements on the (53) project, JAM was awarded the "2009 AGC of VT Best Builders Award For Outstanding Quality of Work and Effort" - New Construction

 

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