HEI was selected by the City of Washington to provide Phase I, II, III engineering services for this $5.6M locally funded, 4800’ long residential street reconstruction project from Lawndale Avenue to Main Street. The project consisted of the complete reconstruction of the street with new HMA pavement, curb and gutter, storm sewer, sump drain system, water and sanitary systems, sidewalks, PCC driveways, segmental block wall, and cast-in-place box culvert. 

Due to widening the street and limited existing ROW, placement of City utilities and the corresponding relocation of private utility facilities required significant coordination to ensure IEPA regulations were met, yet the start of construction was not delayed. Significant effort was required to achieve ADA compliancy, standard driveway slopes, and positive drainage behind the sidewalks. With the use of 3D modeling, the design team was able to expedite this process and develop plans that met all requirements in all three areas. HEI was able to successfully navigate property owner coordination to gain support for the project, minimize complaints, and avoid project delays. 

HEI was responsible for survey, environmental coordination including biological, cultural and special waste, utility coordination, property owner coordination, roadway design, ADA compliant sidewalk and street cross walk design, storm sewer design, cast-in-place box culvert design, segmental block wall design, water system design, including mains, service lines, fire hydrants, and valves, sanitary system design, storm water management plans, specifications and plans for a local letting, and the administering bid process.



HEI provided the resident technician, construction inspectors, and materials testers to perform daily diaries, traffic control inspections, erosion control inspections, daily quantity and materials documentation, materials testing including concrete testing, nuclear density testing, DCP testing and utility relocation coordination. HEI successfully managed the schedule and budget. All three phases of the project were completed on time and under both the construction and construction engineering budgets.