New Asphalt Driveway Installation in Sherwood, Oregon

Installing a New Asphalt Driveway in Sherwood

A new asphalt driveway is one of the more noticeable upgrades a Sherwood homeowner can make — whether it's a first driveway on a new build in one of the growing hillside subdivisions or a complete redo on an older Old Town-area home. Built right, it's a 20-to-30-year investment. Built on a weak base, it cracks apart within a few wet winters — and on Sherwood's sloped lots, poor drainage makes that worse.

This guide walks through how a new driveway gets installed here, what permits and approach standards apply in Washington County, and how local soil and slope shape the work.

The New Driveway Installation Process

A proper installation follows a clear sequence, and skipping steps is where cheap jobs go wrong. Our step-by-step asphalt driveway installation process covers the full statewide method; here's how it plays out in Sherwood:

1. Layout and excavation — The driveway is marked and excavated to the depth needed for base rock plus pavement. On sloped Sherwood lots, getting grade and depth right is essential.
2. Sub-grade preparation — The exposed sub-grade is graded and compacted, with soft or wet spots addressed — often with geotextile fabric to separate base rock from valley clay.
3. Base rock installation — Crushed aggregate is spread, graded, and compacted in lifts. This base carries vehicle weight and resists seasonal ground movement.
4. Grading for drainage — The surface is shaped to move Sherwood's winter rain away from the home and off the driveway. On slopes, this stage carries extra weight.
5. Asphalt paving — Hot-mix asphalt is laid as a binder course and a surface course to the specified thickness.
6. Compaction — Heavy rolling compacts the asphalt while hot, locking in density and a smooth finish.
7. Curing — Foot traffic within a day, vehicles within a few days depending on temperature.

Permits and the Driveway Approach

In Sherwood, a new driveway connecting to a public street typically requires an approach permit from the city, and driveways tied to county roads fall under Washington County standards. The approach — where your driveway meets the road right-of-way — must meet width, sight-distance, and drainage requirements so it doesn't interfere with the street.

A reputable contractor handles this permitting and builds the approach to standard. New subdivisions often have the approach roughed in already, while a custom or rural driveway usually needs its own permit. Confirm permitting is included before work begins.

Base Prep and Slope in Sherwood

The single biggest factor in how long your Sherwood driveway lasts is what's underneath it. The south Washington County area's clay-heavy soils absorb water through the long wet season and move as they wet and dry. Asphalt laid over a thin or poorly compacted base cracks from below within a few years.

A driveway built to last uses adequate base rock depth, compaction in lifts, and frequently a geotextile fabric layer over the clay. Our driveway base preparation guide explains why this invisible stage matters most. On Sherwood's sloped lots, drainage and a traction-appropriate surface finish are just as important — water that isn't directed off a steep driveway undercuts the base and creates a safety hazard in winter.

Timing Your Installation in Sherwood

Asphalt needs dry conditions and surface temperatures above roughly 50°F to compact and cure correctly. In the Willamette Valley, that puts the practical installation window from late spring through early fall. The valley's wet season is long and the summer dry spell is the sweet spot — and the busiest time for contractors.

Most residential installations take two to four days of active work depending on size, base condition, slope, and weather. Planning in spring for a summer install gives you the best shot at preferred scheduling.

What It Costs and What Comes After

New driveway installation in Sherwood has been baselined around $7 to $13 per square foot, with base condition, removal, and slope driving the final number. Our asphalt driveway cost in Sherwood guide breaks down pricing by size.

Once the driveway is in, maintenance protects it. Sealcoat after the first six to twelve months of curing, keep cracks filled, and stay on a regular schedule — our asphalt maintenance services handle this. For the full lifecycle from install through decades of use, the complete asphalt driveway guide for Oregon is the hub.