An interactive guide to understanding PBOT rules and ensuring your concrete project is compliant.
What Portland’s Rules Require
Replacing or building a driveway in Portland means following clear rules from the Portland Bureau of Transportation (PBOT), especially if your project touches public space. This section summarizes the key points every homeowner needs to know.
Mandatory Permits
Any new driveway or replacement that connects to the street requires a permit. This ensures the work does not interfere with public infrastructure and is safe for everyone.
PBOT Code 17.28
This code clearly states that property owners are responsible for the construction and maintenance of driveways and sidewalks within the public right-of-way (ROW).
Design Standards
Your driveway must meet PBOT design standards, such as P-551 (Residential) and P-554 (Commercial), which define measurements, slopes, and materials.
Required Inspections
A PBOT inspector must check and approve the work before the final concrete pour to ensure everything complies with city standards.
The Step-by-Step Permit Process
Getting a permit can seem complicated, but following these stages in an orderly fashion will simplify the process. Click on each step to see the details and know what to expect.
Step 1: Verify Your Property
The first step is to confirm if your current or future driveway connects to the public right-of-way (ROW), which includes the sidewalk and the area between the sidewalk and the street. The vast majority of driveways in Portland do, which triggers the permit requirement.
Best Construction Practices
Beyond the permit, quality construction ensures the longevity and safety of your driveway. Here are some key recommendations for a successful project in Portland’s climate.
Manage the Slope
Ensure water drains correctly away from your home and never toward the sidewalk or street without the approval of a proper drainage system.
Use Durable Finishes
Consider a sand finish or broom finish to provide excellent traction, which is especially important during Portland’s rainy months.
Plan for Access
If your project requires a concrete pump or street closure, you’ll need to coordinate with PBOT and may require a Temporary Street Use Permit.
Protect Public Space
During construction, it is your responsibility to avoid any damage to the surrounding sidewalks, curbs, and streets. Repairs can be costly.
Frequently Asked Questions
Here we answer some of the most common questions homeowners have about driveway permits. Click a question to see the answer.
If resurfacing doesn’t alter the width, slope, or connection to the public right-of-way (ROW), a permit may not be required. However, it’s always best to confirm directly with PBOT to avoid issues.
Residential driveways are typically limited to a width of 12 to 20 feet, depending on zoning and the size of your property. The exact details are specified in PBOT’s P-551 standard.
Yes, but creating a new curb cut or widening an existing one requires a permit and explicit approval from PBOT. An existing cut cannot simply be widened without a formal review and design approval.
