Ordinance No. 1014 (Land Use File #7-08/17) Page 2 of 7
Exhibit 5, Findings of Fact
Puntney property, to assign LD zoning to the Kindle Property, and to establish a 100-foot wide
Natural Resource Overlay District along Mill Creek on the Puntney and Kindle property.
11. This proposal must comply with the Transportation Planning Rule (TPR), which implements
Statewide Planning Goal 12 when considering amendments to acknowledged comprehensive plans
and land use regulations. The process for analysis of the TPR is a two-step process for evaluating
a proposal’s impacts on the transportation system. First, the trip generation potential of a site is
assessed assuming a “reasonable worst-case” development scenario under the existing and
proposed zoning. If the proposed zoning has the potential to increase the number of trips, an
analysis of long-term transportation impacts can be studied to assess whether the rezone will
significantly affect the transportation system. Conversely, if the trip generation under the proposed
zoning is equal to or less than that under the existing zoning, no additional operational analysis is
necessary to conclude that the proposal does not significantly affect the transportation system.
12. The test for significant effect involves an analysis of land uses representing “reasonable worse-
case” development scenarios. These “reasonable worst-case” scenarios are independent of current
or planned site uses. Per SMC 17.16.060, housing in LD zones may not to exceed 6 dwelling
units per acre and housing in MD zones may not to exceed 12 dwelling units per acre. For this
analysis the northern parcel is assumed to be zoned LD when annexed and the southern parcel is
zoned MD. To assess a reasonable worst case for the existing zoning, the City’s transportation
consultant correctly assumed that both parcels could be built out according to the zoning
designation. Per SMC 17.16.060, the P zone allows lands, buildings and facilities that are
common to a pubic area and will not unreasonably change the area of the community. Based on
the designation, it was assumed that a reasonable worst case for a public area would be a public
school or schools.
13. The proposed zone change site was compared to existing school sites in the mid-Willamette
valley. For a site of approximately 35 acres, a combined middle school and elementary school
was determined to represent the reasonable worst case. The average Floor to Area Ratio (FAR)
was analyzed at three combined middle school & elementary school sites in the mid-Willamette
valley. This average was applied to the two parcels to determine a reasonable building size for
both a middle school and an elementary school. Reasonable worst case trip generation estimates
were prepared for the existing and proposed zoning development scenarios based on information
provided in the standard reference manual, Trip Generation, 10th Edition, published by the
Institute of Transportation Engineers. The Single-Family Detached Housing land use was used for
both of the existing zoning parcels and represents the reasonable worst case. The middle school
and elementary school trip generation reflect an average FAR determined from similar sites and
applied to the gross area of the two parcels (35.28 acres). The proposed zone change could result
in an increase of 878 daily trips, an increase of 1,013 weekday AM peak hour trips, and a
reduction of 57 trips PM peak hour trips. The proposed zoning has the potential to create an
increased impact and possible significant effect on the surrounding transportation system because
of the increase in daily and weekday AM peak hour trips.
14. Per OAR 660-012-0060, if a zone change amendment is found to significantly affect an existing or
planned transportation facility, then the local government must put in place measures which
mitigate the significant effect. One potential remedy is a “trip cap” designed to limit the vehicle
trips associated with future development of the property. To mitigate the potential for possible
significant effect, the City of Stayton may impose a “trip cap” to restrict future development on
the subject properties to a level allowed under the existing zoning.