Latham Street Improvements

City of Sandwich

OBJECTIVE

Latham Street is the primary north-south route through the City of Sandwich, serving as a critical transportation corridor. The two-lane, approximately 4,500-foot-long stretch between East Center Street and the northern City border was severely deteriorated and in need of reconstruction. Additionally, the existing water system suffered from frequent main breaks, requiring extensive repairs. Drainage issues further exacerbated roadway conditions, necessitating improvements. The project was complicated by underground and overhead utilities, requiring coordination with utility companies before work could begin.

PROJECT DESCRIPTION

Hampton, Lenzini and Renwick, Inc. (HLR) was tasked with completing Phase I engineering for this federally funded roadway improvement project, addressing both roadway reconstruction and flooding concerns. The project scope includes reconstructing the roadway, regrading ditches, and making minor intersection improvements at the twelve cross-streets along the corridor. HLR’s services include topographic surveying, traffic counts, crash analysis, residential parking study, geometric design, special waste analysis, drainage design, and securing STP grant funding. Additionally, HLR is responsible for coordination with the Federal Highway Administration (FHWA) and IDOT District 3, as well as preparing the Project Development Report. The project is being processed at the CE State approval environmental processing level and was designed to avoid the need for right-of-way acquisition.

During Phase III construction observation and resident engineering, HLR oversaw the installation of new water mains, sanitary sewer point repairs, pavement pulverization, full-depth reclamation, and drainage enhancements. The project also included ADA-compliant sidewalk crossings and targeted sidewalk repairs. Close coordination with the City’s Water Department and residents was essential for the project’s success.