Nitsch Engineering is providing design and construction administration services for the reconstruction of a section of Trapelo Road between Smith Street and Lexington Street, approximately one mile of roadway. The goal of the reconstruction is to improve uninterrupted pedestrian connectivity between two major intersections and safety along the corridor. Proposed improvements include the replacement of existing sidewalks along the north side of the road and the construction of new sidewalks along the south side. The design includes the construction of new Americans with Disabilities Act (ADA) compliant pedestrian ramps with crosswalks, construction of new retaining walls, relocation of rectangular rapid flashing beacons (RRFBs), new guardrail, and new pavement markings and signage. Trees will be removed as needed to construct the new sidewalk, and protection will be provided to trees and hedges that will remain. Erosion control measures will be installed to protect adjacent wetland resource areas.

Nitsch Engineering surveyed the project area, developed Preliminary Design Plans, and presented the project design to the Waltham community and City staff at a Public Information Meeting. Comments received from concerned stakeholders and abutters at the meeting were incorporated into the design wherever possible and as required by the City. A complete matrix of potential project impacts was provided to the City as requested to assist in the coordination and review with abutters. Final Design Plans were submitted to the City in September 2016. A Request for Determination of Applicability (RDA) was submitted to the City of Waltham Conservation Commission and the project received a negative determination with respect to resource area impacts.

Nitsch Engineering assisted with the bidding process and award, and will provide full-time construction oversight during construction activities, including the review of contractor submittals and responding to contractor Requests for Information.