Hillsboro mobile home park paving is shaped by the Washington County TV Highway and Aloha-adjacent inventory -- a stock of mid-century to early-1990s parks serving Silicon-Forest workforce housing and longer-tenured residents. Interior roads in these communities carry steady 24-hour traffic, utility easements that have been cut and patched repeatedly over the decades, and ADA crossings that frequently date back to original construction. The work needs to be sequenced around tenant access, HUD HCV inspection timing, and the Washington County summer paving window. This page covers the 2026 cost picture, scheduling, and the buyer profile we see most often.
Hillsboro Park Inventory and the TV Highway Corridor
The Hillsboro mobile home park inventory clusters along the TV Highway corridor between downtown Hillsboro and Aloha, with additional communities northeast toward Cornelius and southeast toward the Tualatin Plain. Most of these parks were built in the 1960s through 1980s with asphalt installed in three or four major paving events since construction. Older parks frequently have layered overlays where each prior overlay was applied without proper milling, leaving a stacked-pavement profile that traps water at the curb line. The first scoping question on any older Hillsboro park job is whether the existing pavement section will accept another overlay or whether a structural mill-and-replace is the right answer. Our Oregon asphalt cost benchmarks article covers the underlying paving economics.
The Washington County Paving Window
Hillsboro's commercial asphalt paving window is mid-May through mid-October, matching the broader Willamette Valley pattern. Hot-mix asphalt needs ambient temperatures above 50 degrees F with at least 24 hours of dry weather for proper cure. Washington County contractors typically book summer slots by March, and the September-October window carries weather risk as the Pineapple Express rain pattern arrives. Community managers planning 2026 work should be bidding by February. Our Hillsboro parking lot striping page covers the striping refresh that pairs with most overlay jobs.
HUD HCV Inspection Cycle
Subsidized Hillsboro parks with HUD Housing Choice Voucher tenants follow a published inspection cycle, and pavement deficiencies -- potholes wider than 4 inches, trip hazards over 1/2 inch, broken curb ramps -- appear on the inspection sheet with a defined cure window. Community managers schedule paving so that a fall inspection lands on freshly overlaid work. The summer paving window aligns naturally with fall inspections if the work is booked in spring rather than scrambled at the last minute.
Industry Baseline Range for Hillsboro Mobile Home Park Paving
Pricing tracks scope, interior road footage, utility-trench count, and access. Hillsboro parks with simple geometry and clean asphalt price low; multi-loop communities with layered overlays and active utility scars price higher.
Industry Baseline Range
| Scope | Cost Per Sq Ft | Typical Total |
|---|---|---|
| Pothole patching + crack-fill | $0.50 to $1.50 | $2,000 to $11,000 |
| Mill and 2-inch overlay | $3.50 to $6.50 | $30,000 to $200,000+ |
| Utility-trench reinstatement | $25 to $65 per linear foot | $1,500 to $18,000+ |
| Lot-driveway reinstatement | $1,200 to $3,500 per driveway | varies |
Current Market Reality
Hillsboro mobile home park paving in 2026 trends toward the upper end of these ranges. Washington County contractors face the same regional fuel surcharges, binder cost increases, and disposal fee climbs that affect every Portland-metro project. A 50,000-square-foot park interior road that priced at $4.00 per square foot for a mill-and-overlay in 2019 commonly bids at $5.50 to $6.25 today. The Hillsboro inventory has a high concentration of stacked-pavement profiles that increase milling time and disposal volume, both of which push pricing toward the upper bracket. Our Hillsboro asphalt paving page covers the city-wide commercial paving context.
Utility-Trench Reinstatement After Service Work
Hillsboro parks see steady water and sewer service work because the regional infrastructure installed in the 1960s and 1970s is at or past end-of-life. Each repair leaves a trench that needs proper reinstatement: saw-cut both edges, recompact the backfill in 6-inch lifts, lay a 2-inch base course, then a 1.5-inch surface course with proper tack. The cold-patch shortcut fails inside one Washington County wet season and shows up as a pothole by spring. Community managers should keep a running utility-trench log so the next overlay scope captures every cut as a known cost line, not a surprise change order.
OR-ADA Interior Crossings
Oregon accessibility code applies to interior pedestrian paths -- door to mailbox cluster, laundry room, community room, or playground. Where these paths cross the interior road they need detectable-warning panels, ramps at 1:12 slope or flatter, and marked crosswalks where vehicle volumes warrant. Most older Hillsboro parks have crossings that have not been touched since original construction. The cheapest moment to bring them into compliance is during a planned overlay, when the saw-cut and tie-in costs are already absorbed in the bid scope. Our asphalt paving services page outlines the typical scope mix.
Phased Work to Preserve Tenant Access
Hillsboro mobile home park interior roads are functionally private streets, and a fully closed road forces tenants to park on the city street or on a neighboring property. That drives complaints fast. The standard playbook on a Hillsboro overlay is to split the work into phases (typically north and south halves, or front and rear loops), run each phase on a weekday with a 48-hour no-park notification, and coordinate temporary parking overflow on side streets where legal or via a neighboring-property agreement. Tenants need 14-day advance written notice via door-hang and email, plus signage on the day of work. Cone-and-sign every phase entry. A 150-unit Aloha-corridor park with a single loop interior road typically takes three working days of overlay (one day per phase plus tie-ins) plus 48 hours of cure on the final zone before the road reopens.
Talk to Cojo About Your Hillsboro Park
If you operate a Hillsboro mobile home park and the interior roads have not been overlaid in seven or more years, the next step is a property walk. We will log pothole count, utility-trench scope, ADA crossing condition, and the existing pavement profile, and bid the work with itemized line items. To get on the calendar, schedule a Hillsboro walk and we will be on the property within the week.