Pavement Analysis Leads to Reconstruction
West Post Road is located in northwest Cedar Rapids. The City identified this street in 2014 as part of their Pavement Management Program as one that should be considered for rehabilitation or repair. Project design and construction were to be included as part of the City’s Paving for Progress initiative that’s funded by a 10-year Local Option Sales Tax (LOST).
As part of the design services we provided, a pavement analysis was completed that included pavement cores and analysis of the subbase and subgrade. The results of the analysis included significant subbase and subgrade issues that were causing pavement failure. Additionally, the PCC pavement had previously been overlaid with HMA and was significantly deteriorated. The conclusion of the pavement analysis was that the most cost-effective, long-term solution was to reconstruct the street.
Storm Sewer & ADA Compliant Upgrades
Reconstruction of the street included designing and incorporating a new, expanded storm sewer system. The stormwater from more than 20-acres of residential housing and streets drains to West Post Road. The new system was designed to accommodate existing stormwater runoff, meet the City’s design standards, and provide adequate capacity for connecting additional storm sewers from upstream locations once the roads are reconstructed.
This section of roadway receives a significant amount of traffic and includes pedestrian accommodations that provide access to the elementary school within the project limits and a middle school adjacent to the project site. New ADA compliant sidewalk ramps were added to the project, and street grades that did not meet the City’s design standards were improved. Careful coordination with local schools, a church, local residents, and utility companies was completed.
The project was phased into two bid packages, with each having three construction stages, and included more than 2,800 linear feet of pavement. The phasing and staging allowed for reduced impacts to local residents and schools. Both bid packages were let in 2016 and came in under budget. The first Phase of reconstruction was completed during the spring and summer of 2016. The second phase of construction was completed in fall 2016 and spring 2017.