bld20120085_Armour-2.pdf
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:
# BLD20120085 May 15, 2012
Project Name/Address:
Armour New Single Family Residence 315 Daley St
th
Contact Person/Address/Fax:
Phil King 1527 150 St SW Lynnwood, WA 98087
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.
General Plan:
1. 5/15/12 Done.
2. 5/15/12 Done.
3. 5/15/12 Not used for utilities. Attached are utility maps that I have included the information
I could gather from our GIS mapping files to assist with elevations etc. Some were not
available and will need to be field verified.
4. 5/15/12 Not Done. Note all requirements for alley use. See Handout E81 specifically page
3, Item 2, b and h would apply in this situation. Please provide a traffic control plan to be
used during the work in the alley and during the work on Daley St.
Site Plan:
1. 5/15/12 Done.
2. 5/15/12 Done.
3. 5/15/12 Done.
4. 5/15/12 Done.
5. 5/15/12 Done.
6. 5/15/12 Done.
7. 5/15/12 Done.
8. 5/15/12 Done.
9. 5/15/12 Partially Complete. Please note proposed driveway material. Please outline or
shade driveways to provide clarity.
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10. 5/15/12 Still do not agree with submitted plans. See Stormwater comment #1. Please confirm
lot coverage and impervious surface square footage. Review calculations find were found to
be higher than those stated on the plan submittal.
rd
11. 5/15/12 Not Done. Show alley from 3 on plan, add appropriate surfaces etc. Add notes. Alley
shall be paved for 20 feet beginning at alley entrance off 3rd Ave N. The alley from the edge
of new paving to the east property line of project shall be improved with paving or rock.
12. 5/15/12 Not Done. Provide construction details for sidewalk, curb/gutter and driveway entrance
consistent with City standard details.
Stormwater/Utility Plan: Please note the third plan submittal will have the review response
time allowed for a first review due to the large amount of time spent reviewing a plan that was
not an accurate representation of the project requirements as provided in Code, Handouts and
Supplements and commented on in the first set of review comments provided on March 6,
2012.
Stormwater:
1. 5/15/12 Not Done. The site plan was not measuring out consistent with the 1/20 scale so I
used the architectural since the measurements are all referenced to the plan. For the total
roofline, I added the footprint of the house and 1 6 eves. The total roofline is 4030.
Adding the two concrete pads shown on the Architecturals, the two driveways and the
sidewalk, the total impervious surface on the proposed plan is 5719.97. Using pervious
pavement does not remove the area from the impervious surface calculations. Pervious
payment is a low impact development stormwater measure. The driveway counts towards
impervious surface but then will be mitigated using LID. See the worksheet in the
Stormwater Handout E72. When you complete the worksheet, you will see also that since
this site is over 5000sf of proposed impervious surface it is now considered a Small Site
Cat 2 project. Category 2 sites are not able to use the handouts simplified sizing tools for
any storm system. The system must be designed by a civil or geotechnical engineer.
Please review the Stormwater Supplement, also Appendix C, the Handouts E72, E72a and
b to learn all the requirements under the 2010 Storm Code. Please resubmit a new
drainage plan meeting all the requirements.
A measurement from the site plan of the
proposed impervious surfaces does not agree with the impervious surface calculations
stated on the plans. Please re-. calculate and revise on worksheet and plans.
2. 5/15/12 Not Done If the proposed impervious surface exceeds 5000 sf then the project is
categorized as a type 2 small site. Category 2 sites required a storm drainage report and a
storm system designed by a licensed engineer. Please review chapter 5 of the Storm
Water Supplement available on the City Website to review the code requirements.
3. 5/15/12 Not Done If the recalculation shows that the proposed impervious surface is under
5000 sf, then simplified sizing from the chart in Handout E 72A may be used. Storm
system must be designed as shown in the detail examples included in the handout.
4. 5/15/12 Not Done. Applies to any type of storm system proposed including the new plans
infiltration and drywell system. Also see LID Handout E72 C for all the requirements for
low impact development systems. Provide a detail of each. Provide all information
required to adequately size and construct. Provide a detail showing the full detention
system that is proposed. The detail shall include all pipe sizes, rim and invert elevations,
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minimum distances required by code, orifice size, pipe length and any other information
necessary to fully construct from the drawing. The system shall include a catch basin at
both ends.
5. 5/15/12 Not Done Rim and invert elevations shall be provided for all connections to verify
slopes. See attached plan for reference.
6. 5/15/12 Not Done but not required if no new connection will be constructed. In the right of
way, please label the new catch basin to be installed to connect the property system to the
City system. Call out catch basin type and provide rim and all invert elevations.
7. 5/15/12 Not Done Note size and material of all pipe.
8. 5/15/12 No Longer Applicable. The current plan shows the use of Type IL basins collecting
the runoff from the driveways and the downspouts. Is a large catch basin used to meet
elevations and provide slope or another specific need? If not, then you may consider
installing a smaller sized drainage structure at those locations.
9. 5/15/12 Not Done. Details are on Architecturals, please add to this plan. Please label the
square adjacent to the east side of the driveway and the north side of the house. If
impervious, verify that the area has been added to the impervious calculations. Show on
plans how runoff from this area is collected.
10. 5/15/12 Not Done. Please respond to question. Is the area labeled uncovered deck
pervious or impervious? If the deck has a concrete slab or there will be gravel beneath it
then it is considered impervious. Please add to calculations if impervious.
11. 5/15/12 Not Done Are footing drains required for this project? If so, please show where
they will discharge. Footing drains can not be connected to the detention system.
12. 5/15/12 Not Done See Comment #1 above. (Small Site Category 2) Provide all required
Small Site Minimum Requirements (SSMRs) on plan. See Chapter 5 of the Storm Water
Supplement to determine the requirements that pertain to this project.
Utilities:
Water:
1. 5/15/12 Not Done Call out size of water meter and whether existing or proposed. A new
meter may be necessary if fire sprinkling is required by the Fire Marshall.
2. 5/15/12 Not Done Call out size, material and length of water service line. Please note if re-
using existing line or installing a new line. For fire sprinkling requirements water line on
property must be 1 1/2.
3. 5/15/12 Not Done Please note separation of utilities on plan.
Sewer:
1. 5/15/12 Not Done Show 4side sewer clean out at house connection and 6 clean out at
property line. Clean out at property line is required to have a 12 locking cast iron lamphole
cover. Please note on plans.
2. 5/15/12 Not Done Add invert elevations at both clean outs and call out length of pipe to
verify minimum slope of 2% is achieved. If installing new lateral, invert elevations at
connection to main shall also be provided on plan.
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3. 5/15/12 Not Done Call out size and material of pipe. Label as existing or proposed.
4. 5/15/12 Not Done Please add both notes to plan:
a. If re-using existing side sewer (from property line to house): Property owner must
have condition verified and provide a report to the Public Works Department.
b. If re-using existing sewer lateral (from property line to City main): Condition must be
verified by Public Works Department. Contact Edmonds Sewer Division at 425-771-
0236.
5. 5/15/12 Done.
Grading/TESC Plan:
Erosion Control:
1. Please show temporary construction entrance and location of stockpile(s) on plan.
2. 5/15/12 Done
3. 5/15/12 Not Done Please review minimum requirements of erosion control in Chapter 5 of
the Stormwater Supplement for Small Site projects, determining if the project is a category
1 or a category 2 based on revised impervious surface calculations. (See Handout E 72 for
information on how to determine the category of the project.) Add all minimum
requirements for the classification of your project to the erosion control plan notes.
4. 5/15/12 Not Done Show catch basin protection if needed in the right of way in front of or
downstream from site. Add detail to plan.
5. 5/15/12 Not Done 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.
Grading:
1. 5/15/12 Not Done Add bottom of footing (bof) elevation or slab elevation for structure.
2. 5/15/12 Not Done or not clear enough to see. Show existing and proposed grade contours.
3. 5/15/12 Not Done Show existing home foundation lines and proposed home foundation
lines on plan.
4. 5/15/12 Not Done Indicate area of disturbance. This includes all areas that shall have
vegetation removed (see definition in Handout E 72).
5. 5/15/12 Done if no removal note on plans Show areas of sidewalk, driveway, and
curb/gutter that will be removed to install improvements.
6. 5/15/12 Done if no removal note on plans Show required 2 ft asphalt sawcut along all
areas where curb/gutter and driveway will be replaced,
Please resubmit 3 copies of the revised plans/documents to a Development Services Coordinator. Please
contact me at 425-771-0220 if you have specific questions regarding these plan corrections.
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