bld20140189_Coleman_ENG1.pdf
City of EdmondsBLD20140189
TH
121 5AVENUE NORTHEDMONDS,WA 98020 • (425) 771-0220 FAX (425) 771-0221
Website: www.ci.edmonds.wa.us
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Engineering Plan Review Comments
PermitApplication:Date:
#BLD20140189August 29, 2014
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Project Name/Address:
Coleman -902–9Ave S
Contact Person/Address, Fax or E-mail:
RANDY.MUNSON@COMCAST.NET
Reviewer: JENNIFERLAMBERTDivision:
ENGINEERING
During review of the subject submittal, it was found that the following information, corrections, or
clarifications would need to be addressed. All Handouts referred to in these comments can be accessed at
our website: www.edmondswa.govunder City Government / Development Services Department /
Engineering Division then scroll down to Handouts:
4/24/14 –Incomplete submittalcomments
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8/29/14 –1Review comments
COVER SHEET (pg.1 of 4)
GENERAL NOTES
1)Note #1 –revise “2010 WSDOT/APWA standard…”to state “CurrentEdition of the WSDOT/APWA
standard…”
GENERAL
1)Add theutility purveyor information.
2)Please add a note to the plans that state the existing utilities will be removed and/or capped under the
demolition permit.
3)Please revise the site map to be consistent with the other sheets as needed.
DATE E-MAILED8/29/2014PAGE (1)
City of EdmondsBLD20140189
TH
121 5AVENUE NORTHEDMONDS,WA 98020 • (425) 771-0220 FAX (425) 771-0221
Website: www.ci.edmonds.wa.us
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Engineering Plan Review Comments
SWPPP & GRADING PLAN (pg.2of 4)
GENERAL NOTES
1)Add the following note, “All disturbed soils to be compost amended.”
DRAINAGE AND UTILITY PLAN(pg.3of 4)
GENERAL
1)The minimum driveway widthshall be12’. Per the drawings, the existing shared access is less than 12’
and therefore, the drivewaywill need to be widened to a minimum of 12’.
a.Please provide an easement that allows for the subject site to use the shared access.
b.Please provide an easement that allows for the neighboring site to use the portion of the
driveway located on the subjectsite.
WATER
1)It appears that a fire sprinkler system is required for this property. The existing water service line from
the watermain to the meter is not the appropriate size and a new tap will be required.
a.Please show the new line from the watermain to thehouse.
b.Please show theback of thewater meter located at the property line(where the water meter is
within the right-of-way).
c.Please add a note that a 1” meter is to be installed.
d.Please label the water service line as1 ½” and note the pipe material and tracer wire.
DATE E-MAILED8/29/2014PAGE (2)
City of EdmondsBLD20140189
TH
121 5AVENUE NORTHEDMONDS,WA 98020 • (425) 771-0220 FAX (425) 771-0221
Website: www.ci.edmonds.wa.us
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Engineering Plan Review Comments
SEWER
1)Asstated in the incomplete submittal comments dated 4/24/14 and in an email dated 8/20/14, if the
sewer is to follow the same path as the existing sewer (as shown on the plans) an easement(s)is required
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that allows for thesewer servicing 902 9Ave S to run through private properties. Please provide the
easement(s)to the City.
a.If the existing sewer is to be reused, please provide the following:
i.Show the side sewer from the main to the house.
ii.Clearly show the location of the easement.
iii.Please note if the sewer lateral is proposed or existing.If theexisting side sewer and
lateralis proposed to be reused, the sewerwill need to be inspected to determine if it can
be reused.
iv.Show a 6”cleanout at the property line.
v.Show a cleanout located within 2’of the house, at any 90°bend, when there is less than
3’between two 45° bends, and when there is more than 100’between cleanouts.
vi.Please label the pipe materialand size.Where the side sewer has 2 or more homes
connected the sewer must be 6”. Where the sewer line has only one home connected, the
line may be 4”.
vii.Show the invert elevations at the main and the house so that slope and coverage can be
verified. If the slope of the pipe exceeds 20% the pipe will need to be anchored.
b.If an easement does not exist or cannot be obtained, please show how the site will be connected
to sewer.
i.Show the side sewer from the main to the house.
ii.Label how the connection will be made at the sewer main.
iii.Label the side sewer andlateral asproposed or existing.
iv.Show a 6”cleanout at the property line. Please add a note that the 6” cleanout at the
property line will have a 12” cast iron lamphole cover with ½” hexbolts.
v.Please label the pipe materialand size. The sewer lateral must be 6”. Once on private
property the sewer may reduce to 4”.
DATE E-MAILED8/29/2014PAGE (3)
City of EdmondsBLD20140189
TH
121 5AVENUE NORTHEDMONDS,WA 98020 • (425) 771-0220 FAX (425) 771-0221
Website: www.ci.edmonds.wa.us
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Engineering Plan Review Comments
vi.Show a cleanout located within 2’of the house, at any 90°bend, when there is less than
3’between two 45° bends, and when there is more than 100’between cleanouts.
vii.Please show the invert elevations at the main and the house so that slope and coverage
can be verified. If the slope of the pipe exceeds 20% the pipe will need to be anchored.
If this connection requires a grinder pump, please show/provide the following:
viii.Please show the pump on the plans and refer to City Standard E6.9.
ix.Please refer to the handout #E62 for engineering requirements for sewer pumps. Please
note that the City does allow E-One pumps.
STORM
1)If the site has more than 5000 sq ft of impervious surfaces, all stormwater management systemsmust be
designed by a licensed engineer. The pre-sizing chart in Handout #E72A cannot be usedregardless if
less than 5000 is proposed to discharge to the detention system. Please see comments below by Jerry
Shuster.
2)If there are portions of surface water runoff not located on the subject site that will discharge to the
onsitestormwater management system,the system will need to be sized to account for the additional
surface water runoff. Please show what areas of the driveway/shared access road will dischargeto the
onsitestormwater managementsystem.
3)Pleaseshow where the footing drains will discharge to.
STORMWATER
The following comments are provided from Jerry Shuster, Stormwater Engineer. Please contact Jerry
directly at 425-771-0220 or by email at jerry.shuster@edmondswa.govwith any specific questions you
may have regarding these comments.
1.A “Level Spreader” is proposed for approximately 1,000 square feet of runoff.This is actually
“Dispersal Trench with notched grade board” and should be referred to as such.The cited minimum 25
foot flow pathdoes not apply to this site since the area downstream of the proposed dispersal trench is a
steep slope (defined as 15% or greater).Steep slopes require a 50 foot flow path.There does appear to
be 50 feet between the proposed spreader and the west property line,however, the flow will not be
dispersed and therefore a flow credit cannot granted.First the geotechnical report basically says that no
water will infiltrate and second, there is a cutoff trench designed to intercept the flow and convey it to
DATE E-MAILED8/29/2014PAGE (4)
City of EdmondsBLD20140189
TH
121 5AVENUE NORTHEDMONDS,WA 98020 • (425) 771-0220 FAX (425) 771-0221
Website: www.ci.edmonds.wa.us
PUBLIC WORK DEPARTMENT
Planning • Building • Engineering
Engineering Plan Review Comments
the yard drain thatconnects to the detention system via pump.Flow dispersion is discouraged in highly
urban environments.
The site classifies as a Category 2 Small Site Project, therefore the detention sizing in handout E72A are
not applicable.Theintroduction of the handout says:
“If your site is a Category 2 Small Site Project or a Large Site Project that will have stormwater
detention system, this handout cannot be used. See the Supplement for more details.”
The detention system must be designed per Section 5.7 of the Edmonds stormwater code supplement for
a Category 2 small site project.
2.Pump calculations (not just cut sheets) need to be included per pumping policy
(http://www.edmondswa.gov/images/COE/Government/Departments/Public_Works/Policies/ENGR-
DEVSTM-2001-02.Pumping.Private_Property.pdf).See enclosed example.
3.Once the commentsabovehave been addressed there may be additional comments.
SOIL MANAGEMENT PLAN(pg.4of 4)
GENERAL
No comments
Please resubmit 3 copies of the revised plansand associated documents with a written response to each
item to a Permit Coordinator. Please contact me at 425-771-0220ext 1321or by e-mail at
jennifer.lambert@ci.edmonds.wa.usif you have specific questions regarding these plan corrections.
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