Gold Award –Main Street and Horicon Street Reconstruction, City of Mayville, Wis.
Contractor: Ptaschinski Construction Company*
Owners: Wisconsin Department of Transportation/City of Mayville
Engineer: Gremmer and Associates
When the City of Mayville reconstructed two major streets, the Ptaschinski Construction Company was able to meet a tight schedule and address other challenges.
Reconstruction involved removing and replacing the existing pavement, base course, sub-base, curb and gutter, storm sewer, sidewalk, and pavement markings. The contractor was also responsible for replacing permanent signage, street lighting and traffic signals at two intersections.
The typical existing section along the west side of Main Street consisted of a 12 ft. travel lane, a 5 ft. bike lane, a 6 ft. parking lane, a 30 in. curb and gutter with a 5 ft. terrace width, and a 5 ft. sidewalk. The proposed finished typical section along the east side of Main Street consisted of a 12 ft. travel lane, a 4 ft. bike lane, an 18 in. curb and gutter with a varying terrace and a 5 ft. sidewalk. The intersection of MainStreet and Horicon Avenue was also improved to accommodate large truck turning movements.
The proposed roadway typical section on Horicon Avenue consisted of a 44 ft. roadway with two 12 ft. travel lanes, varying sides for parking, a bike lane that varies to accommodate parking, 5 ft. sidewalks and 30 in. curb and gutter with generally a 5 ft. terrace width.
Access to local residents and businesses during construction an important factor and was handled by using innovative methods to expedite the project. These included maturity testing for opening strength, voluntary pavement covering, speed dowel headers for colored crosswalks, and partnering with WisDOT to identify and plan staging changes during the entire project to expedite construction.
Scheduling was critical for local access and other details of the project success. The contractor was very proactive in suggesting staging modifications that increased local access and benefited businesses and their customers. For example, Ptaschinski crew members used two pavers of different widths on one day to expedite the project. The paving crew placed 700 SY of 16 ft.-wide pavement, pulled the first paver off to the side, then continued paving with a 20 ft.-wide machine to complete another 843 SY in the same westbound lane. This rare, mid-day paver change on one continuous pour saved multiple days on the overall project schedule.
The contractor also successfully constructed a challenging pavement profile that exceeded normal vertical curve requirements. The contractor worked with project staff to adjust superelevation runoff lengths to improve smoothness on a very flat section that had little margin for error with drainage. In the end, the team generated excellent goodwill and produced a quality concrete pavement that will serve the City and the traveling public very well.
* ACPA member.