11-08-2021 Council Packet - Laserfiche WebLink

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1 | P a g e Executive Summary Enclosed is a summary of the pavement management work that was performed by WSB for the City of Lino Lakes, completed in October 2021. This report provides an overview of the pavement conditions in the City and how they have changed since the previous report. It can be used for planning and budgeting of roadway construction and maintenance activities. As requested by the City, WSB evaluated pavement conditions on 25 percent of the roadways in the City this year. This cycle ensures the City’s entire system is surveyed over a four-year span. The roadways inspected and evaluated consisted of only bituminous roadways that are maintained by the City. Pavement ratings were computed using PAVER, a pavement management software that calculates Pavement Condition Index (PCI) based on surface distresses identified in the field. PCI is based on a 0 to 100 scale, with 100 being a road in perfect condition. Any type of road maintenance (i.e. patching or crack sealing) done prior to inspections would be accounted for in each PCI value. Current ratings for roadways that were not inspected in 2021 were estimated using the PAVER software. PAVER utilizes the data from the previous inspection along with the standard pavement deterioration curve developed by the United States Army Corps of Engineers (USACE) to estimate the deterioration of roads that likely took place since a road’s last survey. That estimation is then used to calculate the road’s current PCI. Private roadways and gravel roadways were not evaluated. Roadways in the problem category that were given a thin overlay starting in 2020 were rated as marginal and having a PCI of 69. These areas were not in the 2021 survey section of the City and will deteriorate faster than the USACE pavement curve predicts due to the temporary nature of the maintenance fix. The significant findings of the pavement condition in 2021 are as follows: • There are currently 104 miles of bituminous roadways in Lino Lakes, of which 24 miles were inspected in 2021. • The current area weighted average PCI for bituminous roads in Lino Lakes is 73.55. The findings reflect that most of the roadways in the City are in adequate condition. The current roadway condition and the conditions over the past four evaluations are shown in Table I.