HomeMy WebLinkAbout20260205_PJA26-0095_Snohomish County Offer Traffic Mitigation Offer to Snohomish County
The applicant completes part one and submits it to the City with a completed county traffic worksheet. The City
completes part two and sends it to the County. The County completes part three and sends it back to the City.
Part One to be completed by Applicant
Basic Development Information
Name of City in which development is located City of Arlington
Name of Proposed Development Taco Tecalitlan
City Project File Number(if known)
Name of Applicant BYK Construction
Address of Applicant PO Box 619
Proportionate Share Calculation: Choose Option A or B
❑ Option A: Based on a percentage of the County's adopted impact fee (attach traffic worksheet.)
1. The applicable percentage of the County's fee: %
2. Net New Average Daily Traffic: ADT
3. The adopted County impact fee for this development: $/ADT
4. Total Proportionate Share Amount: $
❑■ Option B: Based on a comprehensive traffic study (attach traffic worksheet and traffic study)
■ No road improvements are impacted. Hence, proportionate share amount is zero ($0).
The following road improvements are impacted. The calculation of proportionate shares is
summarized below.
List by Names/Description the Impacted County PHTs Capacity Proportionate Share
County Projects (attach other pages if Project Impacting Cost per Obligation per
necessary) ID# Project PHT Impacted Project
1. There are not any Snohomish County improvement projects that will be impacted by 3 directional
2. PM peak-hour trips generated by the Development. Snohomish County traffic mitigation fees should
3 therefore not be required for the development according to the provisions of the interlocal agreement.
4. Total Proportionate Share Amount (sum of obligations for each impacted project) $0.00
❑ Trip Distribution and Assignment if required
If required, attach AM and PM peak-hour trip distribution and assignment. Attach traffic worksheet showing
whether or not it is required and traffic study.
❑■ Mitigation of other impacts if required for developments generating more than 50 Peak-Hour Trips
Mitigation of Impacts on Level of Service
■ No impact or not applicable Mitigation as described in attached traffic study.
Mitigation of Impacts on Inadequate Road Conditions
■ No impact or not applicable Mitigation as described in attached traffic study.
Mitigation for Impacts on Access or Circulation
■ No impact or not applicable Mitigation as described in attached traffic study.
❑■ Written Offer
The Applicant hereby voluntarily agrees to pay the total proportionate share amount shown above for
impacts of the proposed development on the capacity of Snohomish County roads and provide mitigation
of all other impacts as indicated above and described in attached documents.
BY: Ate-1 t'..," Date: 1/15/26
Signature by Authorized Official of Applicant or Authorized Representative
Print Name and Title Madison Bowman - Client Manager BYK Construction
Instructions to Applicant. Submit this Offer, a completed county traffic worksheet, and any other attachments
to the City with your initial application or send directly to Contact.pwCMS(aD_snoco.org.
Page 1 of 2
Part Two: To be completed by the City
Receipt of Written Offer and attachments by City and routing to County
Name of Proposed Development
City Project File Number
Date Received
City Staffer Assigned to Project
Address
Phone
Instructions to City. Send this offer and all attachments to Contact.pwCMS(aD-snoco.org
Received by:
Date:
Initialed by City Staffer Print Name and Title
Part Three: To be completed by Snohomish Count
Receipt of Offer and attachments by Snohomish County and routing back to City
Name of Proposed Development
City Project File Number
Received by:
Date:
Initialed by County Staffer Print Name and Title
Snohomish County Mitigation Request to City
Snohomish County has reviewed the traffic study worksheet and mitigation offer submitted by the applicant
and has determined as follows:
❑ Snohomish County requests that the City impose ❑ Snohomish County requests that the
the mitigation offered above as a condition of City require additional supplemental
approval for the Development. Snohomish County information to adequately evaluate the
agrees to accept changes in the mitigation proposed development's impacts.
payment amount shown above resulting from TDM ❑ The information requested is shown in
or lot-yield adjustments approved by the City. the notes below.
By:
Date:
Signature by Authorized County Staffer Print Name and Title
Routing Back to City
Instructions to County Send this offer and all attachments to the City Staffer shown in Part Two above.
Sent by:
Date:
Initialed by City Staffer Print Name and Title
Notes
Page 2 of 2
December 2006 Version
Snohomish County Traffic Worksheet and Traffic Study Requirements
for Developments in the City of Arlington
Snohomish County government,through an interlocal agreement(ILA)with the City of Arlington,may
request traffic mitigation measures from any new development in the city that impacts roads in the
unincorporated county. The City will impose the requested mitigation to the extent that the City determines that
the mitigation is reasonably related to the impacts of the development. To determine the impacts, and to
determine reasonable mitigation measures,the City of Arlington requires a traffic study from any development
in the city that may have impacts on county roads. This `traffic study' may be as simple as completing sections
one and two of the county traffic worksheet below, or having a professional traffic engineer conduct a formal
traffic study consistent with the requirements in section three below.
• If a development generates less than ten peak-hour trips and the applicant chooses Option A for
mitigation payment(standard payment by percent of county impact fee),then the applicant will
generally only have to fill out the first two sections of this traffic worksheet and complete a mitigation
offer(see section four).
• However, if a development generates more than ten peak-hour trips,or if the applicant chooses Option
B for mitigation payment(comprehensive impact analysis),then the applicant will have to fill out the
first section of this worksheet, complete a separate traffic study consistent with the requirements in
section three, and complete a mitigation offer(see Section Four).
• Applicants should submit all documents to the City as part of their initial submittal.
• Traffic study requirements for impacts on county roads are based on the County's traffic mitigation
ordinance(Chapter 30.66B)and the city/county ILA.At the end of this document find references to the
county contacts and county web site(sources for may of the documents related to traffic mitigation).
• Following review of the documents submitted,the County may request supplemental information and
analysis as necessary to determine the impacts of the development in accordance with the city/county
ILA. The City will require the proposed development to submit the supplemental information and
analysis to the extent that the City determines that it is necessary to determine the impacts of the
development.
Section One (1)Worksheet General Information
1. Name of Proposed Development Taco Tecalitlan
City Development File Number(if known)
2. Name,Address and Phone Number of Applicant
3. Development Site Address
4. Is it a residential or commercial development?
5. Description of Development(size and specific type)
3,440 square feet of high turn over (sit-down) restaurant
6. How many new vehicle trips are expected to be generated by the proposed development? (For many
common types of developments this information can be provided by the city or the county. For more
complex developments trip generation may have to be determined under section three below)
30.86 AM Peak Hour 18.00 PM Peak Hour 203.43 Average Daily Trips(ADT)
7. Proportionate Share Impact Mitigation: All applicants have two options in determining the amount of
their traffic mitigation payment:
For determining the amount based on a percentage of the county fee go to section two.
X For determining the amount based on a comprehensive traffic study go to section three.
Page 1 of 3,County Traffic Worksheet for Developments in Arlington
Section Two (2) Proportionate Share Determined by Percentage of County Impact Fee
2(a) Calculation of Payment Amount
1. Standard default estimated 2. Other Percentage: (Note: See author's
percentage of trips impacting or qualifications in section three below.) Estimated
county roads 70 p percentage of trips impacting county roads from
�0
attached trip distribution:
3. Development New Average Daily Trip Generation(ADT)
4. Type of Development(Residential or Commercial)
5. County Commercial Fee Rate$ 6. County Residential Fee Rate$
(Note: Consistent with county code and the ILA,developments pay the rate in effect at the time of their
submittal. As of 2/l/06 the rates were$206 for commercial developments and$242 for residential
developments. Through ordinance,the County Council can change these rates at any time,so consult
with the County or look at Snohomish County Code 30.66B.330 to find the latest fee rates.)
7. Calculation of Proportionate Share Impact Mitigation
x x = $
#1 or#2 above: #3 above: #5 or#6 above: proportionate share
%of trips ADT Fee Rate mitigating payment
2(b) Determining whether or not an additional traffic study is necessary
Will the development generate more than 10 peak-hour trips or are there other impacts that need to be
addressed(e.g.,level of service, safety, or access and circulation)
No. Skip section three and go to section four.
Yes. Read the introduction to section three and skip to section 3(b).
Section Three (3) Traffic Study Requirements
Introduction: This section outlines requirements for traffic studies for impacts on County roads. If an applicant
chooses (or is required)to complete a traffic study,then it should be submitted along with this worksheet and a
mitigation offer. (Note on Author's Qualifications: A traffic study under this section must be conducted by an
engineer licensed to practice in the state of Washington with special training and experience in traffic
engineering and,preferably,membership in the institute of transportation engineers. For individuals/firms not on
the City's approved list,the developer will provide,with the traffic study,the credentials of the individual or
firm performing the traffic study certifying compliance with these qualifications.)
3(a)Proportionate share impact mitigation based on comprehensive traffic study
1. Development's Trip Generation and Distribution. Determine the PM peak-hour trip generation and
distribution for the development consistent with Section 3(b)below.
2. Impacted Improvements. Determine which of the road sections with planned improvements in the
county's impact fee cost basis (Transportation Needs Report Appendix D) are impacted by three or
more development-generated directional PM peak hour trips(PM PHT).
3. Current Counts.For each impacted improvement,provide current traffic counts to determine the PM
PHT.
4. Reserve Capacity. Determine"reserve capacity"for each impacted improvement by subtracting the
current PM PHT from the maximum service volume(MSV)for the existing facility. Reserve capacity is
set to zero if current PM PHT exceeds the MSV. For MSVs see County DPW Rule 4224.
5. New Capacity.New capacity is the incremental increase in PHT that could be accommodated with the
planned improvement. Determine the new capacity of each impacted improvement by subtracting the
current MSV from the future MSV after the improvement.
6. Chargeable Capacity. For each impacted improvement, add the reserve capacity to the new capacity.
7. Final Adjusted Cost. Find the cost of each impacted improvement and make any adjustments used by
the County for tax credits (see Transportation Needs Report Appendix D).
8. Capacity Cost per Peak-Hour Trip. For each impacted improvement,determine the capacity cost per PM
PHT by dividing the final adjusted improvement cost by the chargeable capacity.
9. Traffic Impacts. From step one above,take the total number of PM PHT(in both directions)impacting
each planned improvement.
10. Proportionate Share. For each impacted improvement, determine the proportionate share impact
mitigation by multiplying the capacity cost per peak-hour trip by the number of PM PHT impacting the
improvement.
Page 2 of 3,County Traffic Worksheet for Developments in Arlington
3(b)Trip Generation and AM and PM Peak Hour Trip Distribution and Assignment
Calculate AM, PM and Daily trip generation consistent with the ITE Trip Generation Handbook and Snohomish
County Public Works Rule 4220. Determine the trip distribution and assignments consistent with the County's
document titled"Format for Trip Distributions"(available at County web site, see below).
■ Within the developments transportation service area(TSA)the distributions will be carried out to each
key intersection at which the approach or departure volumes on any leg have three (3)or more peak hour
trips. Get the most current list of key intersections on the web site described below. Trips should be
distributed onto the road system as it is expected to be in six years.
■ The distribution should be a schematic map showing the broad distributions of trips in terms of
percentages on different roads. Show all City boundaries.
■ The assignment should be a schematic map with the impacted key intersections identified by ID#and
turning movements for each shown in separate diagrams on the same page or on different pages. The
assignment should also be presented in tabular form listing each intersection by intersection ID#, and the
number of trips at each movement.
3(c) Additional Analysis for Developments Generating More Than Fifty(50)Peak Hour Trips
For large developments(i.e.,those generating more than 50 peak-hour trips),the County may request mitigation
for impacts on the level of service of County roads, documented safety locations (the County calls such
locations"inadequate road conditions"or"IRCs"), and access or circulation. The traffic study requirements
below are intended to disclose impacts. Based on this information the County may request through the City that
the applicant provide additional information showing possible mitigation measures. If any off-site improvements
were needed for mitigation the County would work with the applicant to determine requirements for right-of-
way, construction plans,right-of-way use permits, construction/maintenance bonds, and other issues.
Impacts on Level of Impacts on Inadequate Road Impacts on Access or
Service(LOS) of County Conditions Circulation
Arterials Contact Snohomish County Public The County may request
Contact Snohomish County Works for a list of the current IRCs. improvements to existing roads to
Public Works for the most Identify any IRCs impacted by three provide safe and efficient access
current list of arterial units or more peak-hour trips.Note:Unlike and/or circulation. In some
in arrears and critical LOS impacts in which at least three or instances,the County may request
arterial units. Identify any more peak hour trips have to be added in provisions for future County roads
arterial units in arrears or one direction to require disclosure(e.g.,3 identified in the Comprehensive
critical arterial units westbound),for IRCs,any three peak Plan or in Small Area
hour trips added to IRC locations are
impacted by three or more considered an impact for which disclosure Transportation Studies. If so,the
directional peak-hour trips. is necessary(e.g.,2 westbound plus 1 County will request specific
eastbound). additional information through the
City.
Section Four (4) Traffic Mitigation Offer to Snohomish County
The applicant should complete a traffic mitigation offer to Snohomish County that summarizes the mitigation
identified in the county traffic worksheet and any additional traffic study. This will facilitate timely review of
the development and processing of the application. The form to use for the mitigation offer is titled"Traffic
Mitigation Offer to Snohomish County."This form is typically provided to all applicants along with this traffic
study checklist. In addition, copies are available from the county contacts or the Snohomish County web site
shown below.
Additional Information
County Web Site
Snohomish County Public Works has a web site with many documents related to traffic studies and
mitigation requirements for developers. From the Snohomish County Home Page go to:
Departments/Public Works/Divisions/TES/ProgramPlanning/3066B
County Contacts
■ Deb Werdal, Snohomish County DPW Traffic, 3000 Rockefeller M/S 607, Everett WA 98201, (425)
388-3184, debra.werdalkco.snohomish.wa.us
■ Maria Schmidt, Snohomish County DPW Traffic, 3000 Rockefeller M/S 607, Everett WA 98201, (425)
388-3099,maria.schmidt@co.snohomish.wa.us
Page 3 of 3,County Traffic Worksheet for Developments in Arlington