Asphalt Speed Bump Installation

What We Install—and Why It Works

When you need to slow vehicles and protect people, properly designed asphalt speed bumps are a proven solution. William Stanley & Sons Paving plans, builds, and stripes traffic-calming features for public roads, parking lots, private drives, HOAs, schools/churches, and multifamily communities.

When searching for speed bump installation near me, Williams Stanley & Sons Paving is a clever choice. As a third-generation asphalt company with more than 30 years in the Portland area, we focus on durable construction, smooth transitions, and consistent results that actually reduce speeds without creating headaches for property owners.

Speed Bumps vs. Humps vs. Tables: What’s Best?

  • “Speed bumps” create the most aggressive slowing for very low target speeds, common in parking lots and pedestrian-heavy areas.
  • Speed humps provide gentler, neighborhood-friendly calming, suitable when you want 15–25 mph targets on private roads.
  • Speed tables lengthen the profile to improve ride quality for service and delivery vehicles while still reducing speeds.

We’ll recommend the right profile for your site, traffic, and goals, balancing safety, comfort, and maintenance.

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Parking Lot Striping Services

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The Asphalt Speed Bump Installation Process

Every project starts with a site visit. We evaluate base strength, drainage, approach distances, visibility, and emergency access needs. Our crew then places and compacts hot-mix asphalt to the specified profile, and finishes with clean edges and smooth tie-ins. Finally, we apply high-visibility striping. The result is a clean, predictable feature that slows traffic without damaging vehicles or trapping water.

Design Details That Make a Difference

Effective traffic calming is about more than height. We design for predictable approach, appropriate spacing, and water management so your pavement lasts. Transitions are tapered for a smooth ride at target speed, spacing is planned so drivers don’t speed up between bumps, drainage paths stay open to prevent ponding, raveling, and premature cracking. Thoughtful positioning near crosswalks and entries improves compliance and safety.

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Striping & Visibility

Clear markings matter. We finish installations with bright, high-contrast striping and optional reflectors for low-light conditions. For lots with heavy turnover, directional arrows and crosswalk ties improve compliance. Good visuals reduce sudden braking and help drivers maintain safe, consistent speeds. If you’re refreshing existing bumps, we can re-shape worn profiles and re-stripe to restore visibility.

Maintenance & Lifecycle

Asphalt speed bumps are durable and easy to maintain. Periodic re-striping keeps visibility high, and timely crack sealing preserves edges. If your traffic patterns change, we can adjust spacing, add devices, or convert select bumps to humps or tables. When resurfacing a lot, we’ll mill and rebuild profiles so traffic calming remains consistent with the new pavement.

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Timeline, Access & Downtime

Most installs are completed quickly with limited disruption. Residential-scale work can often be planned and reopened the same day after cooling and larger commercial projects may be phased to maintain access. We’ll give you a clear schedule, coordinate around peak hours, and provide reopening suggestions based on temperature and lift thickness.

Why Choose William Stanley & Sons Paving

We’re a locally owned, asphalt-only paving company. Our third-generation team brings Portland-area expertise, clean job sites, and dependable scheduling. From design to striping, you get one accountable partner whose work is built to perform in Northwest weather. We don’t consider the job complete until you’re fully satisfied.

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FAQs: Asphalt Speed Bumps

Do I need permits for speed bumps?

On private property, many projects proceed without a full street-use permit. If your plan affects a public right-of-way, then permits are typically required. We’ll help you understand what applies to your site.

How many speed bumps do I need—and how far apart?

Placement depends on approach speeds, sightlines, and site layout. We design spacing to prevent mid-block speeding while preserving comfortable access for service and delivery vehicles.

Will speed bumps damage vehicles?

When driven at posted or intended speeds, properly profiled asphalt speed bumps do not damage vehicles. We engineer smooth transitions and provide clear striping to encourage appropriate approach speeds.

Can you add bumps to an existing lot?

Yes. We can install on existing asphalt, address drainage if needed, and stripe for visibility. During future resurfacing, we rebuild the profiles so traffic calming remains effective.

How long does installation take?

Most small projects are built and re-opened within a day or two. Larger sites are phased with clear signage and access plans. We provide a detailed schedule before work begins.

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Ready to slow traffic and protect people on your property? Contact William Stanley & Sons Paving for a no-pressure site assessment and quote. We serve Portland, Gresham, Lake Oswego, West Linn, Tigard, Hillsboro, Vancouver, WA, and surrounding communities—with quality work, competitive pricing, and results that last.

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