Main Street Reconstruction, Ph. I, II

City of Sandwich

OBJECTIVE

The existing asphalt pavement and aggregate base course for 4,332 linear feet of Main Street between Center Street and Knights Road were beyond their service lives and required reconstruction. Additionally, concrete sidewalk ramps required improvement to meet ADA/PROWAG standards, and an existing undersized water main needed replacement to improve fire flow and circulation.

PROJECT DESCRIPTION

HLR provided Phase I and II engineering services for the reconstruction of Main Street between Center Street and Knights Road, restoring pavement conditions and improving accessibility. The project included reconstruction of aging pavement with a Portland cement-stabilized base course and asphalt binder and surface, replacement of approximately 2,800 linear feet of water main, and targeted sanitary sewer improvements to address slope deficiencies. Sidewalk ramps were upgraded to meet ADA/PROWAG requirements, and failing sidewalks and curbs were replaced.

The project required coordination with IDOT District 3 and the Federal Highway Administration due to federal funding, as well as extensive coordination with local utilities and agencies. Additional improvements included replacement of downtown street lighting and design accommodations to enhance accessibility for adjacent businesses with constrained entrances. HLR completed all engineering, environmental documentation, permitting, and construction plans, and supported the project through the March 2025 State Letting, with construction completed in fall 2025.