bld20140415_jacobsen-1.docx
City of Edmonds
TH
121 5 AVENUE NORTH • EDMONDS, WA 98020 • (425) 771-0220 FAX(425) 771-0221
Website: www.ci.edmonds.wa.us
PUBLIC WORKS DEPARTMENT
Engineering Division
Plan Review Corrections
Plan Check : Date:
# BLD20140415 June 6, 2014
Project Name/Address:
Jacobsen New Single Family Residence 741 Hanna Park Ln
Contact Person/Address/Fax:
Bryan Krannitz bryan@krannitzgehl.com
Reviewer: JoAnne ZulaufDivision:Engineering
During review of the subject submittal, it was found that the following information, corrections, or
clarifications would need to be addressed. All Handouts and Standard Details referred to in these
comments can be accessed at our website: www.edmondswa.gov by choosing the Government tab and
Public Works| Engineering under Departments:
Please Note: Building Handouts do not include updated Engineering Division Requirements. Refer to
Engineering Handouts for all Engineering Requirements.
Plot Plan:
1. Please remove all existing conditions that will not remain after construction from this plan.
2. The plot plan shall show the location of all the utilities (water, sewer, electric, etc.) and
stormwater system but does not need to include the details (length, size, etc.).
3. Add note to plan “All utilities will be installed underground.”
4. Please note the location of the nearest fire hydrant on plan and note the distance between the
property line and the hydrant.
Stormwater
5. Please revise impervious surface information. See comment # 1 under .
Utilities: Please provide water, sewer and dry utility information and construction information
in the civil plans.
Stormwater Plan:
1. Please revise the site classification and the impervious surface map as follows;
a. All impervious surface on this project is “new”. There is no impervious surface that
meets the definition for “replaced”. Please see handout E72.
b. The geo report mentions a possible small structure to be constructed in the east
area of the property. Please add to the impervious surface calculations and the
plans if this to be constructed.
c. Unless specifically approved by the geotech in the form of an addendum, dispersion
shall not be approved as a mitigation measure for runoff. The Geospectrum
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Consultant, Inc. report dated December 4, 2013 states on page 11; “no uncontrolled
water flow should be allowed on the site”. All impervious surface runoff shall be
mitigated using conventional stormwater management techniques.
2. Please replace or revise current control manhole for detention to be consistent with City
Standard Detail E5.3 and add control structure Detail E5.4.
3. Remove sheer gate detail. (see E5.3 for more information)
4. Remove all references to Galvanized Steel piping. This is not an approved pipe material
for construction of detention systems. See E72A for more information.
5. Please change footing drain line type to “fd”. Please change clean out labels to reflect
footing drains.
6. Please address Geospectrum requirement for existing storm drain. See page 11 of report.
7. Note size, length and material of all tightline connections from house to detention system.
All pipe located under driving surfaces shall be sdr 35 or better, or if under 1 ½’ of cover
then shall be ductile iron.
8. Please replace or revise “Construction Sequence” to include the information on the Sample
Construction Sequence attached. Please replace all instances of “town” with “city”.
9. Please provide a de-watering plan.
10. SWPPP # 11 not adequately addressed. Please add information regarding timing of
inspections, storm event response and wet weather inspections and responsibilities for
tesc.
Sheet C2:
Erosion Control:
1. Please show temporary construction entrance and location of stockpile(s) on plan.
2. Please review and revise Site Grading and T.E.S.C. notes. Many are not consistent with
the geotechnical report recommendations. Attached are some sample grading and tesc
notes that can be edited to work for this site.
3. “Cover Methods” and “Temporary Cover” are the same and can be combined into one.
4. Number 6 SWPPP is shown next to “Cover Methods”. There is no reference to cut and fill
slopes. That information is under “Maintenance of Siltration Barriers”.
5. The heading “Maintenance of Siltration Barriers” does not describe all the information
following it.
6. Add note to plans: “All disturbed areas on and off site shall be compost amended to meet
requirements of BMP T5.13 in the Stormwater Manual, Vol V, Chapter 5.
7. Top Soil Preservation Notes: How does this work with the above (#6) requirement?
Please clarify.
8. The clearing limits are shown along the entire property line. Please review the
geotechnical report and adjust those lines according to the recommendations in the report.
Also, Low Impact development encourages preservation of as much existing pervious area
as possible.
9. Please provide detail showing how driveway will be constructed to meet the geotechnical
report requirements on page # 10 Pavement and Slab Subgrade Preparation.
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