The City held its annual Measure D public workshop with the Council’s Franchise/Public Infrastructure Subcommittee on the evening of January 26, 2021, with participation from numerous interested residents. City staff presented a sixth year to the currently adopted five year pavement preservation program as the FY 2020-21 project goes to construction and falls off of the current five year program. The current five year rolling program now includes:
The Council’s Franchise/Public Infrastructure Subcommittee reviewed the five year program including the newly proposed FY 2025-26 project. The subcommittee also reviewed the adopted FY 2021-22 Pavement Preservation Project and
after receiving comments from the public, recommended that City Council approve the proposed FY 2021-22 Pavement Preservation Project and adopt the proposed Fiscal Year 2025-2026 project into the five year program. On February 3, 2021, the Council by resolution approved the FY 2021-22 Pavement Preservation Project and adopted the FY 2025-26 project into the five year program. The recommended repair strategies and treatments for the streets selected for the FY 2021-22 project again include the following proven surface treatments:
- Method 1: Crack Seal
Placement of specialized asphalt emulsion into lateral and horizontal cracks that develop in asphalt as it ages. The crack seal prevents water from seeping into the streets structural section (base rock) and destroying the street’s structural integrity and strength from within. Crack sealing is often performed prior to micro-surfacing, chip seals, or cape seals. The combination of these treatments is less expensive than an overlay which typically requires edge grinding and may include crack sealing.
- Method 2: Micro Surface (Slurry Seal)
Seal coat the street surface with fine aggregate infused asphalt emulsion to preserve the wearing surface of the street and prolong the street’s service life.
- Method 3: Rubberized Cape Seal
Repair minor localized defects in the street by milling and backfilling with new asphalt “plugs” then placing a layer of rubber infused asphalt emulsion on the street surface to seal cracks and weatherproof the surface while immediately covering the asphalt.
- Method 4: Edge Grind with Asphalt Overlay
Repair localized defects in the street by milling and backfilling with new asphalt “plugs” then edge grinding at the gutter lip on both sides of the street and layering a new layer of asphalt (Typically 2” thick) over the surface of the street from edge to edge. Emulsion with pre-coated, rubberized, 3/8” aggregate chips and power rolling them into the hot asphalt emulsion. The new chipped street surface is power rolled and power swept numerous times to remove loose chips. The chipped surface is left to cure for up to fourteen days and then is coated with a micro surface seal coat to provide a smooth driving surface.
- Method 5: Street Reconstruction
The complete reconstruction of a street that has reached the end of its service life and can no longer be successfully maintained or rehabilitated. The work includes removing or grinding the street surface and structural section and replacing both with either reconditioned materials (Full Depth Reclamation) or new materials (Reconstruction).
The FY 2021-22 Pavement Preservation Project will now begin the design process. The FY 2021-22 Pavement Preservation Project bid package should be completed and ready to bid in the second quarter of FY 2021-22.