05-0091 Onsite Review #2 122005
City of Yelm
Community Development Department
105 Yelm Avenue West
P.O. Box 479
Yelm, WA 98597
December 20, 2005
Bill Dunning PE
Pacland
606 Columbia St NW
Olympia, WA 98501
RE: Wal-Mart – COY Project Number SPR-05-0091-YL
Second Review of Civil Onsite Construction Documents
Mr. Dunning:
The City of Yelm has completed the initial review of the proposed Wal-Mart store. Your application included:
Civil construction documents
Drainage and Erosion Control Report
We have reviewed the plans for compliance with the City of Yelm Development Guidelines, the DOE Stormwater Manual, MDNS, the staff review the preliminary land use and general standards
of civil engineering practice. The following comments need to be addressed before the plans may be approved for construction. Our comments are summarized below:
Erosion and Sedimentation Plan:
The catchbasin socks should be installed as soon as the catch basins have been constructed not after paving.
The temporary erosion ponds have a bottom elevation at 340.00. If the ground water level is at 340.00 what kind of protection will the ground water have?
Grading and Storm Drainage Plan:
The roof drains design notes to see architect plans, and when the architect plans say see civil plans. Please make sure the additional information is placed on one of the sets of plans.
The 8 foot screening wall details are not shown. The architect’s plans do not have them either.
I am reviewing the stormwater system now. I will try to get you any comments by Tuesday. I do not expect any thing significant but I just have to review it.
Utility Plan, (Sheet
Please show the irrigation and domestic meters larger on the plan. Also the backflow prevention needs to be installed directly behind the meter not in the building. If you want a secondary
protection inside the building that is ok however the City requires backflow
at the meter. The backflow device should be a RPBA on the domestic and Double Check valve at the irrigation meter.
A 10” water valve needs to be installed at the hydrant tee located at approx. Sta. 10+00. I did not see this on the plans.
The fire department connection, fire hydrant and indicator valve are located as the City of Yelm prefers. Please do not move the FDC to the building.
The water details shown on the plans are not the most current versions.
The step tank is shown in a low spot behind the building. The nearest CB inlet is 341.60 and the rim of the step tank is 341.30. The step tank must have positive drainage away from
the accesses.
The City of Yelm has a policy that all grease interceptors shall be 1,500 gallons or larger. Also it appears that the 1500 gallon grease interceptor you are currently proposing is not
large enough for the use. The sewer department is requiring a min of 4,500 gallon size for the larger unit.
A hose bib will be required to be within 50 feet of the STEP Tank(s) for maintenance. I was not able to locate it on the civil or architects drawings.
The step line from the tank to the sewer main should be 2” in size. 4” is much too big and will cause increased maintenance for the city.
Site Lighting Plan (Sheet 21):
Please submit a copy of the lighting plan with the projected photogramic numbers shown on it for review.
Water and Sewer Profiles and Detail (Sheets 22 thru 25):
The City of Yelm requires sand to be used a bedding material for water and sewer pipes. Please change the plan spec. to reflect this.
Landscape Plan Sheet 38):
Need City of Yelm Street Tree Planting detail 4-19 from Development Guidelines, for Type III street trees.
Street tree planting requires 1 accent tree for every 3 street trees.
The parking islands in the southwest area of the parking lot are missing the required landscaping trees.
Are the existing trees to remain at the NW corner? Show how many and what size. Also the landscaping needs to be continued to the property corner.
C-8.1 shows a decorative landscape wall. It calls for cultured stone or brick veneer per owner. The land use approval calls for a river rock wall, is that the landscape wall described
above?
The landscape plan calls out 20’ trellis element. Is there a detail for that?
Land Use approval #11: The landscape buffer along the frontages of SR 507 and SR 510 Yelm Loop shall provide parking lot screening according to the design guidelines applicable to the
gateway district. The screening shall incorporate a combination of the following design elements:
Screen walls of river rock no less than 3 feet in height and segments not less than 20 feet in length.
Landscaping typical of type II
Decorative fence or trellis
Appropriate transit facilities for Intercity Transit along the SR 510 Yelm Loop frontage.
There are no plans submitted for the transit facility. The decorative screen wall that is located in this area may need to be moved to the north if it interferes with the transit facility.
There needs to be an accessible path from the transit station to parking and store frontage.
What is the 12’ x 90’ bale/pallet enclosure? Please add details for enclosure and screening for this enclosure?
Conditions of Approval:
Currently, the Conditions of Approval are being appealed. When the appeal is completed please verify that the plans are meeting all the Conditions of Approval issued by staff or the
Hearing Examiner.
Please review and revise the plans to address the above referenced comments. When the project is resubmitted you will need to submit 4 sets of plans, 2 stormwater reports. The project
engineer should include a written response with the resubmittal, indicating how all the review comments above have been addressed or responded to. This will significantly expedite our
review of the project. If you have any additional questions or comments please do not hesitate to call or contact me at jimg@ci.yelm.wa.us.
Community Development Department
Respectfully,
Jim Gibson P.E.
Development Review Engineer
Mike Beach, Pacland