Traffic Impact Fees

Certain complete building permits submitted after January 1, 2011, are required to pay a Transportation Impact Fee (TrIF). The City currently only requires payment of TrIFs, and has not adopted impact fees for parks, schools or other infrastructure at this time.

TrIFs are used by the City for pay for transportation projects. The fee amount varies depending on the land use or combination of uses. For example, residential fees and commercial fees are not the same because they generate different amounts of traffic. This section is intended to assist the development community in understanding the City's TrIF program. For additional general information, please review the Transportation Impact Fees Process brochure (.pdf).

Does Your Project Trigger TrIFs?

There are many types of projects which do not trigger TrIFs, generally projects which do not generate new PM peak hour trips. To determine if your project will require TrIF payment, please review the Transportation Impact Fee Triggers handout (.pdf).

Estimate Your Fee

The Transportation Impact Fee Calculation Spreadsheet (.xls) is intended to help an applicant easily estimate the amount they will be required to pay. This can be helpful for preliminary budget purposes and when various development alterantives are being considered. However, this spreadsheet is only a tool and should not be a replacement for City-verified TrIF payment. When the applicant is ready to submit the TrIF application, City staff will calculate the actual TrIF amount.

TrIF Application

TrIFs are due prior to the issuance of a building permit and the amount is based on the fee schedule in effect at the time a complete building permit application is filed. The applicant must submit the following spreadsheet and any optional forms to the Permit Center with the building permit application in order for staff to calculate the final TrIF amount.

  1. REQUIRED: Transportation Impact Fee Calculation Spreadsheet (.xls)
  2. OPTIONAL: Transportation Impact Fee Claim for Credit Form (.pdf) - If an applicant dedicates land and/or constructs road improvements that are identified in the Current TrIF System Improvement Projects (below) as part of their development activity, they can be issued a credit. The credit will be deducted from the total TrIF amount. An applicant may request that a credit for TrIFs be awarded for the total documented value of System Improvements, including the cost of land and construction work. For more details about credits, please see Lynnwood Municipal Code 3.105.090.
  3. OPTIONAL: Transportation Impact Fee Independent Fee Calculation Form (.pdf) - The applicant may chose not to pay the TrIF according to the Current TrIF Fee Schedule/Rates (below) by submitting this form and the associated fee for review. The documentation submitted must be prepared by a licensed traffic engineer and shall show the basis upon which the calculations were made, including compliance with the procedures in the current ITE Trip Generation Handbook. For more details on independent fee calculations, please see Lynnwood Municipal Code 3.105.070

After City staff receives the Transportation Impact Fee Calculation Spreadsheet and either of the optional forms, they will process the information and provide the application with the final TrIF amount in writing. TrIF payment is due prior to the issuance of a building permit. Credit cards are not accepted for payment of impact fees.

Supporting Documents

  1. Frequently Asked Questions and TrIF Calculation Examples (.pdf)
  2. Current TrIF System Improvement Projects (.pdf)
  3. Current TrIF Fee Schedule (.pdf)
  4. TrIF Zone Maps (.pdf)
  5. Ordinance No. 2850 - Establishment of TrIF Program (.pdf)    
  6. Ordinance No. 2869 - Amendment to TrIF Program (.pdf)  

Rate Studies:

  1. November 2010 TrIF Rate Study (.pdf)
  2. July 2010 TrIF Rate Study (.pdf)

TrIF Reports:

Transportation Impact Fee Program Contact Information

For additional information or questions regarding the TrIF Program, please contact: