Sunnyvale staff brief council on pavement management, funding and condition targets

Sunnyvale public works staff gave a study‑session briefing on pavement management on Feb. 4, outlining how the city measures pavement condition, the treatments used to extend pavement life, and the mix of funding sources that support maintenance and capital projects.

The presentation, led by Sean Smith, operations superintendent, and Chip Taylor, public works director, explained the pavement condition index (PCI) system and the city’s strategy of “keeping good roads good” through timely, cost‑effective treatments.

“We're focused on kind of maximizing the available funding to extend the life cycle of the road,” said Sean Smith, Operations Superintendent. He described the PCI as an engineering score that declines over time without maintenance and said Sunnyvale uses a mix of light maintenance (crack seal, slurry seal, chip seal), heavier maintenance and reconstruction applied at the right point on the deterioration curve to reduce long‑term cost.

Why it matters: council members pressed staff about the city’s PCI goal and what would be required to reach it. Council member Mellinger asked, “Is there a plan to bring us back to PCI 80?” achieving a network PCI of 80 would allow more flexible use of Road Maintenance and Rehabilitation Account (SB 1) funds for complete‑street improvements, staff said.

Key points from the briefing

- Network size and condition: Sunnyvale’s street network was reported as approximately 641 lane miles (about 260 centerline miles). Staff said the city’s overall PCI is about 75 and that over 90% of lane miles fall in good to fair condition in the most recent inventory. Staff said some small segments (courts, cul‑de‑sacs) are in poorer condition and are dispersed across the city.

- Typical treatments and expected life: Smith described treatments and typical lives: crack sealing and slurry seals are cost‑effective when applied early; slurry seal life was described as roughly 7–10 years in typical conditions while full reconstruction is expected to last 20–25 years. Staff noted in‑house programs: roughly 5,000,000 square feet of slurry seal and about 1,000,000 square feet of chip seal are applied annually.

- Funding mix and constraints: staff identified multiple funding sources: general fund, gas tax, SB 1 (Road Repair and Accountability Act), Measure B/Local Road Improvement funds and operating budgets. Smith and Taylor said SB 1 is a major source but carries usage constraints tied to maintaining baseline spending; meeting the PCI 80 threshold broadens allowable uses of SB 1. Rising material and labor costs, increased heavy construction traffic, and heavier electric vehicles were cited as pressures that accelerate pavement deterioration.

- Data and mapping: staff said the city completed a comprehensive network audit with a consultant that updated the StreetSaver pavement database and that the city is moving toward more frequent (two‑year) assessments to improve accuracy. Council members requested a public map showing pavement condition by segment and by neighborhood to inform equity and prioritization discussions; City Manager Tim Kirby said the city lacks current GIS capacity and would work to provide a map but warned it may take time.

Council questions and staff responses

- PCI target and resources: Mellinger and others asked whether the city can reach PCI 80 with current resources; staff said it may require additional funds despite operational efficiencies and better targeting of treatments.

- Prioritization and equity: council members asked how priority lists are developed. Staff described a mix of PCI scores, classification (arterial/collector/local), usage, safety and coordination with other projects. Several council members emphasized desire for a condition map by district to check for historic inequities in service and to aid communications with residents.

- Drainage and potholes: staff advised that standing water is a sign of low spots; the greater risk is water infiltration into cracks and the subbase. Staff said service requests to fill potholes are typically responded to within about 5–10 business days for a patch, with urgent issues receiving faster response.

No formal council direction or vote was requested at the study session; staff said the briefing is intended to inform upcoming budget conversations.

Ending: Staff said they will pursue improved data presentation (including maps where possible), continue two‑year condition assessments, and return to council when pavement funding or program changes are proposed for budget action.