HomeMy WebLinkAboutERC_DNS Determination Issuance_210525DEPARTMENT OF COMMUNITY
AND ECONOMIC DEVELOPMENT
SIGNATURES:
Martin Pastucha, Administrator
Public Works Administrator, Chair
Date Anjela Barton, Fire Marshal
Renton Regional Fire Authority
Date
Kelly Beymer, Administrator
Community Services Department
Date Chip Vincent, Administrator Date
Community and Economic Development
ENVIRONMENTAL (SEPA) DETERMINATION OF
NON-SIGNIFICANCE (DNS)
PROJECT NUMBER: PR21-00001 / LUA21-000147, ECF, CAE
APPLICANT: Amanda Pierce, City of Renton / 1055 S Grady Way, Renton, WA 98057
PROJECT NAME: Madsen Creek Flood Control Improvement Project
PROJECT DESCRIPTION: The applicant is requesting Environmental (SEPA) Review and a Critical Areas
Exemption for the Madsen Creek Flood Improvement Project. The proposed project consists of four (4) sites requiring
improvements to restore and increase the lower Madsen Creek network flood protection and capacity, as well as provide
routine maintenance measures. Site 1 work consists of raising the berm surrounding the sediment basin and adding an
emergency spillway that discharges to the high flow bypass channel. Site 2 work consists of widening the high flow bypass
channel and removing accumulated sediments, as well as raising the right (east) bank of the upper high flow bypass
channel to eliminate the low spot acting as a weir diverting flows to the low flow channel. Site 3 work would raise the
elevation of the left (south) bank from the private property (14937 Maple Valley Hwy) through Wonderland Estates to the
low flow culvert under SR 169. The banks would be raised through a shallow floodwall and flood control berm. Site 4 work
would remove the existing Eco Block wall along the right (north) bank of the low flow channel between the outlet of the
SR 169 culvert to the 149th Ave SE culvert entrance and replace it with a flood control berm. In addition to these
improvements, the high flow bypass capacity will be increased, and maintenance actions and agreements will be
implemented. The project site is mapped with a Type F stream, flood hazard area, seismic hazard area, wetlands, wellhead
protection area, zone 2, sensitive slopes, and protected slopes.
PROJECT LOCATION: 15711 152nd Ave SE, 14937 Maple Valley HWY (King County Parcel Nos.
2323059021, 2323059118, 2323059020, 2323059070, and 2323059028)
LEAD AGENCY: City of Renton
Environmental Review Committee
Department of Community & Economic Development
The City of Renton Environmental Review Committee has determined that it does not have a probable significant adverse
impact on the environment. An Environmental Impact Statement (EIS) is not required under RCW 43.21C.030(2)(c). This
Determination of Non-Significance is issued under WAC 197-11-340. Because other agencies of jurisdiction may be
involved, the lead agency will not act on this proposal for fourteen (14) days.
Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on June 8, 2021. Due to
Governor Jay Inslee’s Proclamation 20-25 (“Stay Home, Stay Healthy”), the City Clerk’s Office is working remotely. For
that reason, appeals must be submitted electronically to the City Clerk at cityclerk@rentonwa.gov. The appeal fee,
normally due at the time an appeal is submitted, will be collected at a future date. Appeals to the Hearing Examiner are
governed by RMC 4-8-110 and additional information regarding the appeal process may be obtained from the City Clerk’s
Office, cityclerk@rentonwa.gov. If the situation changes such that the City Clerk’s Office is open when you file your
appeal, you have the option of filing the appeal in person.
DATE OF DECISION: May 25, 2021
DocuSign Envelope ID: 2185E4C6-EB4A-445F-8113-20CA6BCAD274
5/25/2021 | 11:40 AM PDT
5/25/2021 | 12:37 PM PDT
5/25/2021 | 11:38 AM PDT
5/25/2021 | 12:19 PM PDT
DEPARTMENT OF COMMUNITY & ECONOMIC DEVELOPMENT
Planning Division
1055 South Grady Way, 6th Floor | Renton, WA 98057 | 425-430-7200, ext. 2
www.rentonwa.gov
OF ENVIRONMENTAL DETERMINATION
ISSUANCE OF A DETERMINATION OF NON-SIGNIFICANCE (DNS)
POSTED TO NOTIFY INTERESTED PERSONS OF AN ENVIRONMENTAL ACTION
DNS: THE CITY OF RENTON ENVIRONMENTAL REVIEW COMMITTEE (ERC) HAS DETERMINED THAT THE PROPOSED
ACTION DOES NOT HAVE A SIGNIFICANT ADVERSE IMPACT ON THE ENVIRONMENT.
DATE OF NOTICE OF ENVIRONMENTAL
DETERMINATION:
May 25, 2021
PROJECT NAME/NUMBER: PR21-000001 Madsen Creek Flood Control
Improvement Project / LUA21-000147, ECF, CAE
PROJECT LOCATION: 15711 152nd Ave SE & 14937 Maple Valley Hwy
(APN's 2323059021, 2323059020, 2323059028,
2323059070, 2323059118)
APPLICANT/PROJECT CONTACT PERSON: Amanda Pierce, City of Renton / 1055 S Grady Way, Renton, WA 98057 /
apierce@rentonwa.gov
LOCATION WHERE APPLICATION MAY BE
REVIEWED:
Applicant documents are available online through the City of Renton
Document Center website. See also https://cutt.ly/Ebi2HiA
PROJECT DESCRIPTION: The applicant is requesting Environmental (SEPA) Review and a Critical Areas
Exemption for the Madsen Creek Flood Improvement Project. The proposed project consists of four (4) sites requiring
improvements to restore and increase the lower Madsen Creek network flood protection and capacity, as well as provide
routine maintenance measures. Site 1 work consists of raising the berm surrounding the sediment basin and adding an
emergency spillway that discharges to the high flow bypass channel. Site 2 work consists of widening the high flow bypass
channel and removing accumulated sediments, as well as raising the right (east) bank of the upper high flow bypass
channel to eliminate the low spot acting as a weir diverting flows to the low flow channel. Site 3 work would raise the
elevation of the left (south) bank from the private property (14937 Maple Valley Hwy) through Wonderland Estates to
the low flow culvert under SR 169. The banks would be raised through a shallow floodwall and flood control berm. Site
4 work would remove the existing Eco Block wall along the right (north) bank of the low flow channel between the outlet
of the SR 169 culvert to the 149th Ave SE culvert entrance and replace it with a flood control berm. In addition to these
improvements, the high flow bypass capacity will be increased, and maintenance actions and agreements will be
implemented. The project site is mapped with a Type F stream, flood hazard area, seismic hazard area, wetlands,
wellhead protection area, zone 2, sensitive slopes, and protected slopes.
Appeals of the environmental determination must be filed in writing on or before 5:00 p.m. on June 8, 2021. Appeals
to the Examiner are governed by RMC 4-8-110 and more information regarding the appeal process may be obtained
from the Renton City Clerk’s Office, (425) 430-6510. Due to Governor Jay Inslee’s Proclamation 20-25 (“Stay Home, Stay
Healthy”), the City Clerk’s Office is working remotely. For that reason, appeals must be submitted electronically to the
City Clerk at cityclerk@rentonwa.gov. The appeal fee, normally due at the time an appeal is submitted, will be collected
at a future date. Appeals to the Hearing Examiner are governed by RMC 4-8-110 and additional information regarding
the appeal process may be obtained from the City Clerk’s Office, cityclerk@rentonwa.gov. If the situation changes such
that the City Clerk’s Office is open when you file your appeal, you have the option of filing the appeal in person.
PUBLIC HEARING: If the Environmental Determination is appealed, a public hearing will be set and all parties notified.
NOTICE