Develop, fund, and implement a Citywide Repaving Plan designed to improve the quality of Port St. Lucie streets in a fiscally responsible manner with consideration for both short and long-term needs.
The repaving plan was developed using a need-based approach (“worst first”) while providing an equitable distribution of resources annually among the four City Council Districts. The program focuses predominately on local streets, but will also occasionally encompass two-lane collector and arterial roadways. Roadways with more than two lanes will be prioritized and included in the capital improvement program (CIP) and are budgeted independently.
How the Plan Works
Ideally, the City’s streets would be repaved every 15-20 years, but this is not always possible due to budgetary constraints. The repaving program attempts to leverage all available funding to optimize the benefits to all City residents while providing equitable distribution among all Council Districts. Utilizing the roadway PCI ratings, local streets with lower PCI’s in each Council District are targeted for resurfacing first, assuming the base is still intact and does not exhibit failure. Should the base shown signs of failure, the street will be identified for more extensive repairs and rehabilitation and will be considered for the Capital Improvement Program (CIP). Additionally, an attempt is made to select an entire neighborhood or at least “blocks” of streets within a neighborhood that exhibit similar PCI’s. This provides for a higher production rate, meaning less inconvenience to the public, and it provides a consistent look throughout the neighborhood.
Current funding and estimated annual miles to be paved is shown in the table below. Thanks to the voters of St. Lucie County, a Half-Cent Sales Tax was approved in November 2018. The sales tax will provide funding for infrastructure projects, including resurfacing, for ten years. The funding provided by the CIP’s resurfacing budget and the additional funds from the Half-Cent Sales Tax are both identified below. The complete list of streets can be found in the Repaving Master Plan. The budget and thus annual miles paved is subject to change as additional funding sources are identified. As funding and conditions change, this plan will be reviewed and updated annually.
|Fiscal Year||Budget||Annual Total Cost||Est. Miles Paved||Annual Total Miles|
(Bold text represents funds and miles provided by the Half-Cent Sales Tax.)
Pavement Condition Index (PCI)
As pavement ages and base failures begin to occur, maintenance and rehabilitation become much costlier. The Pavement Condition Index (PCI) table below shows the typical deterioration curve for asphalt pavement as well as relative costs for “Preservation”, “Maintenance”, and “Rehabilitation”. Resurfacing roadways would fall into the “Reactive Maintenance” category and is middle cost range. To extend asphalt life and defer resurfacing costs, thus reducing lifetime asphalt maintenance costs, the repaving plan includes preservation techniques such as rejuvenation. As shown in the table below, “Pavement Preservation” (PP) can extend the useful life of asphalt pavement for a fraction of the cost of resurfacing if performed at the proper time. The 10-year paving plan currently allocates at least 10% of the annual budget to PP from FY 23/24 onward. Fiscal year 2023/2024 is the approximate time that the roadway PCI’s reach equilibrium (i.e. stop falling).
Conclusion (Revised 2019)
The Repaving Master Plan focuses primarily on the maintenance and upkeep of the City’s local and collector roadways. However for the purposes of this Master Plan recommendation all the City’s roadways (arterials, collectors, & local) are being considered. Utilizing a pavement management modeling software, all applicable treatment scenarios (i.e., rejuvenation, milling and repaving, crack seal then milling and repaving, full depth reclamation, and full reconstruction) were evaluated to provide the most efficient treatment strategy at the proper time in the pavement life cycle. Based upon the results of these models, maintaining the current citywide average PCI (64) would require approximately $6 Million per year for local and collector roadways. In addition to the $6 Million per year for local and collector roadways, the City will identify arterial roadways in need of repair, resurfacing, and/or rehabilitation independently. These roadways will then be budgeted on the CIP as standalone projects.
Over the past two years, the average Citywide PCI has fallen from 65 to 64. With the currently proposed repaving budget (as shown in Table 1), which includes the additional funding from the voter-approved ½ Cent Sales Tax, the Citywide average PCI will continue to fall until FY 23/24. At that time, funding levels will have reached a point that the required maintenance will be keeping pace with roadway deterioration. In other words, the Citywide average PCI will have reached equilibrium and will begin to slightly increase from a low of 62.8 in FY 22/23 to 66.8 in FY 28/29. This trend will allow the infusion of a “Rejuvenation” technique into the plan, which will lower future annual rehabilitation costs by providing an extended pavement life cycle.
2019 Progress Update
At the time of this update (7/24/29), 32.6 miles of the planned 34.6 miles have been repaved. Morningside Boulevard from Port St. Lucie Boulevard to Westmoreland Boulevard is the remaining roadway to be repaved this year. Staff is coordinating with the contractor who is expected to finish this section in late July or early August. Thanks to the voter-approved Half-Cent Sales Tax, three additional roadway segments were advanced from their previously scheduled year, which provided an additional 2.1 miles of roadway paved. Combined, the total to be repaved this fiscal year will equal 36.9 miles. The segments advanced by the Half-Cent Sales Tax are as follows:
- SE Morningside Boulevard: Lyngate Drive to Port St. Lucie Boulevard
- NW Bayshore Boulevard: North Macedo Boulevard to Biscayne Drive
- SE Thornhill Drive: Sandia Drive to Airoso Boulevard
Improvements to the Mets Stadium, which were planned for late 2018, are still underway. So, the resurfacing of the portion of Peacock Boulevard from Stadium Drive to University Boulevard is on hold until the completion of Stadium improvements (estimated as the 4th quarter of 2019). However, the remainder of Peacock Boulevard from St. Lucie West Boulevard to University Boulevard and from Stadium Drive to California Boulevard was completed this year.
In the 2019 revision of the proposed repaving plan, 578.0 miles of city streets will be paved in the next ten years. That’s an increase of approximately 64.5 miles over the repaving plan approved in 2018. The additional miles that are being repaved as well as the roadways that have been advanced from their previously scheduled year are attributed to the funding provided by the Half-Cent Sales Tax.