HomeMy WebLinkAboutPacket, Pre PLANNER 6/21/2022Pre -Submittal Meeting
Development and Public Works Department
Reem 61
PRE -SUBMITTAL MEETING DATE:
Tuesday, June 28, 2022
11:00 a.m. - 12:00 p.m.
DPW Conferenee Room 616
Pre -submittal (Partition Tentative) #811 -22 -000148 -PRE 811-21-000195-PROJ Betty Trotter
Assessor's Map: 17-03-33-11 TL: 600
Address: 835 Anderson Lane
Existing Use: residential
Applicant has submitted plans for a 2 -lot residential partition
Planner: Andy Limbird
Meeting: Tuesday, June 28, 2022 11:00 — 12:00 via Zoom
VICINITY MAP
811 -22 -000148 -PRE Pre -Submittal Meeting
17-03-33-11 TL600
835 Anderson Lane
Betty Trotter Koehler
/ -�- 3 S )1-- 4A-4- ""
City of Springfield
Development & Public Works
225 Fifth Street
Springfield, OR 97477
Land Division Tentative Plan
Partition, Subdivision
7-'�--aI
SPr11NGP1E�
lApplication Type
(Applicant., check one)
Partition Tentative Pre -Submittal: ;Subdivision Tentative Pre -Submittal:
Partition Tentative Submittal:
Required
A licant Name:
Subdivision Tentative Submittal:
/. . licant., cornplete this section)
/' �6 �. �-- Phone;5e W- - 6Y6
Company:
Fax:
Address:
Applicant's Re .: A4 A 1^
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Phone:
Company- krasu n
. :T 0,5 -
.
Address•
Address:
Property Owner:
Phone:
Company:
Fax:
Address:
ASSESSOR'S MAP NO:
TAX LOT NOS :
Property Address:
Size of Pro r
,Pro osed Name of Subdivision:
Acres ❑ square Feet
Description of If you are Flding In [his form by hand, please attach our roposal description m this application.
Proposal: h
Existing Use: 1
# of Lots/Parcels:
Total acreage of parcels/
allowable debut :
Proposed #
Dwen units
Si natures: Please si n and printyo-, name and date in thp gaprouriate
Associated Applications:Project
Pre -Sub Case No.: Date:
box on the next a e.
Signs:
Reviewed by:
Case No.:
Date:
Reviewed b
Application Fee:
Technical Fee: Posta a Fee:
TOTAL FEES:
PROJECT NUMBER:
Revised 117114 kl j ! 1,-'�' �� 1 or 10
225 FIFTH STREET
SPRINGFIELD, OR 97477
PHONE: 541.726.3753
FAX. 541.726.1021
www. springfiel d -or. go v
STORMWATER MANAGEMENT SYSTEM SCOPE OF WORK
------------------- (Area below this line filled out by Applicant) ---
(Please rebarn to Clayton McEachern @ City of Springfield Development and Public Works, Fax it 736-1021, Phone # 736-1036),
email:cmceachern@springfield-or.gov
Project Name:
Partition 835 Anderson lane
Applicant:
Assessors Parcel #:
Map 17-03-33 11. Lot #600
Date:
Land Usc(s):
Residential
Phone #:
Project Size (Acres):
19815 square feet
Fax #:
Approx. Impervious Area: 9,380 square feet Email:
Scott Goebel — Goebel Engineering
9 April 2022
541-687-0542
scow@goebeleng.com
Project Description (Include a copy of Assessor's map): Development of existing tract of land with a single
dwelling to a tbree-parcel residential partition. Existing dwelling to remain.
Drainage Proposal (Public connection(s), discharge location(s), etc. Attach additional sheets) if necessary: On-site
runoff to stormwater treatment planter -infiltration system for each of the new parcels. Existing improvements on Parcel 2
to remain.
Proposed Stormwater Best Management Practices: Stomrwater infiltration planter
----------------- (Area below this line rdled out by the City and Returned to the Applicant) --------------
(At a minimum, all boxes checked by the City on defrost and back of this sheet shall be submitted
or an application to be complete lor submittal although other requirements maybe necessary.
Drainage Study Type (EDSPM Section 4.03.2): (Note, UH may be substituted for Rational Method)
® Small Site Study—(use Rational Method for calculations)
❑ Mid -Level Development Study — (use Unit Hydmgraph Method for calculations)
❑ Full Drainage Development Study — (use Unit Hydrograph Method for calculations)
Environmental Considerations:
M Wellhead Zone: 2 year time of travel -(Sports Way) ❑ Hillside Development:
❑ Wetland/Riparian: ❑ Floodway/Floodplain:
E Soil Type: #25 -Chapman Urban Land Complex ❑ Other Jurisdictions
Downstream Analysis:
® N/A
❑ Flow line for starting water surface elevation:
❑ Design HGL to use for starting water surface elevation:
❑ Manhole/Junction to take analysis to:
Return to Clayton McEachern @ City of Springfield, email: cmceachern@springfield-or,gov, FAX: (541) 736-1021
COMPLETE STUDY ITEMS o office us omy:
* Based upon the information provided on the front of this sheet, the following represents a minimum oftehat is needed for an
application to be complete for submittal with respect to drainage; however, this dict should not be used in lieu of the Springfield
Development Code (SDC) or the City's Engineering Design Manual. Compliance with those requirements does not constitute site
approval, Additional site specie information may be required. Note: Upon scoping .sheet submittal, ensure completed form has been
signed in the apace provided below:
Interim Design Standards/Water Quality (EDSPM Chapter 3
Req'd N/A
❑ ❑ All non -building rooftop (NBR) impervious surfaces shall be pre -heated (e. g. multi-chambered catchbasin w/oil filtration
media) for sto ervater quality. Additionally, a minimum of 50% of the NBR impervious surface shall be tested by
vegetated methods.
Where required, vegetative stonnwater dcsigm shall be consistent with design standards (EDSPM Section 3.02), set forth
in Chapter 2 of the Eugene Stormwaler Management Manual.
for new NBR impervious area less than 15,000 square feet, a simplified design approach may be followed as specified
by the Eugene Stormwater Management Manual (Sec2A.1).
If a stormwater treatment swale is proposed, submit calculations/specifications for sizing, velocity, flow, side slopes,
bottom slope, and seed mix consistent with City of Springfield or Eugene's Storm water Management Manual.
❑ ❑ Water Quality calculations as required in Section 3.03.1 of the EDSPM.
❑ ❑ All building rooftop mounted equipment, or other fluid containing equipment located outside of the building, shall
U U Drainage study preparedby a Professional Civil Engineer licensed in the state of Oregon.
❑ A complete drainage study, as required in EDSPM Section 4.03.1, including a hydrological study map.
❑ Calculations showing system capacity for a 2 -year storm event and overflow effects of a25 -year storm event.
The time of concentration (Tc) shall be determined using a 10 minute start time for
❑ ❑ A downstream drainage analysis as described in EDSPM Section 4.0340. Ou-site drainage shall be governed by the
Oregon Plumbing Specialty Code (OPSC).
❑ ❑ Elevations of the HGL and flow lines for both city and private systems where applicable.
❑ ❑ Design of Storm Systems (EDSPM Section 4.04).
❑ ❑ Flow lines, slopes, rim elevations, pipe type and sizes clearly indicated on the plan set.
Minimum pipe cover shall be 18 inches for reinforced pipe and 36 inches for plain concrete and plastic pipe materials, or
proper engineering calculations shall be provided when less. The cover shall be sufficient to support an 80,000 lb load
without failure of the pipe structure.
Maturing's "n" values for pipes shall be consistent with Table 4-1 of the EDSP. All storm pipes shall be designed to
achieve a minimum velocity of three 01 feet ner second at 0.5 nine f ll lf--d nn Tahle a_ 1 ac —Al
Existing and proposed contours, located at one foot interval. Include spot elevations and site grades showing how, site
drains.
Private stornewater easements shall be clearly depicted on plans when private storrnwater flows from one property to
another.
❑ n Drywells shall not receive runoff from any surface w/o being treated by one or more BMPs, with the exception of
residential building roofs (EDSP Section 3.03.4.A). Additional provisions apply to this as required by the DEQ. Refer to
the website: hto://www.deg.state.or.us/Nvq/uic/Uic.htni for more information.
FDetention ponds shall be designed to limit runoff to pre -development rates for the 2 through 25 -year storm events.
*This form shall be included as an attachment, inside the front cover, of the stormwater study.
* WPORTANT: ENGINEER PLEASE READ BELO WAND SIGN'
As the engineer of record, I hereby certify the above required items are complete and included with the submitted stormwater study
and plan set. Signature Scott Goebel P.E.. P.L.S. Dale 9 Ami12022
Form Version 5: June 2015