Town of Ludlow in Windsor County on VT 100 over Branch Brook. The bridge is located at the intersection of VT 100 and VT 103.
The Ludlow STP DECK(39) project will replace the existing bridge deck. The existing structure is a single span cast-in-place deck on steel beams constructed in 1966. It is approximately 84 feet in length and 38 feet wide. The bridge deck is in ‘fair’ condition while the superstructure and substructure are in ‘good’ condition. VTrans bridge inspectors have observed areas of heavy saturation, cracking, and efflorescence in the deck which is evidence of significant concrete deterioration. The bridge is owned and maintained by the State of Vermont.
VTrans evaluated several alternatives to preserve and extend the service life of the Ludlow VT 100 Bridge 99 in an engineering study completed in February 2016. The study assessed the proposed design criteria for lane and shoulder widths, safety criteria and impacts to resources. Several alternatives were considered including, no action, concrete deck patching and deck replacement. The study also considered a number of traffic maintenance options such as a short term bridge closure and phased construction. The engineering study recommends replacing the existing bridge deck and bridge railing through phased construction (maintaining one way alternating traffic while the bridge deck is replaced in the opposite lane). This method will minimize impacts to the public and reduce impacts to right-of-way, utilities, and the environment.
The new bridge deck will be constructed on existing beams and existing abutments using new precast deck panels to facilitate rapid replacement. By applying this cost-effective treatment at the right time, the useful life of the structure will be extended another 30 to 40 years. This provides the largest benefit for the lowest cost when compared to the other bridge treatment alternatives.
The bridge will be closed for 10 days during the month of May 2017. For two weeks before and after the Bridge Closure Period, traffic will be maintained on the bridge with one-lane alternating traffic with Flaggers and Uniformed Traffic Officers during the daytime hours.
The bridge will be closed for 10 days beginning May 15, 2017. For two weeks before and after the Bridge Closure Period, traffic will be maintained on the bridge with one-lane alternating traffic with Flaggers and Uniformed Traffic Officers during the daytime hours.
The regional route will be signed using VT 100, US 4, US 7 and VT 103. Maximum length of the detour is 53 miles. There is a local bypass of 2 miles, however, the local route involves dirt roads, a narrow bridge, and a sharp turn that trucks may not be able to safely navigate.
Belden Company, Inc.
Todd Sumner, P.E.
Christopher D. Williams