07-0135 Engineering No 1 032808 From: Steve Harrington
Sent: Friday, March 28, 2008 10:50 AM
To: Karen Bennett; Jim Gibson
Subject: SPR-07-0135-YL Today's Dental Review # 1 Comments
???The following are my comments for Today’s Dental SPR-07-0135-YL:
Staff or Hearing Examiners conditions of approval need to be included on the cover sheet of plan set.
Datum needs to be included on all plan sheets that have elevations.
Is the information for the Horizontal Datum correct?
Signature Approval Box. Needs to read “Development Review Engineer”.
Utility System Map needs to include all utilities.
Please call out edge of pavement.
Please show right of way and width.
If there is going to be any work in the roadway, please include those sections in the plans.
Please include all existing water and sewer connections above and below ground on the plan sheets.
Easements width and type of easement for both existing and proposed need to be shown on plans.
Please include profile grades on plans.
Please show profile drawing with vertical elevation increments.
Please include note drawing to field verify and expose connection points to verify fittings and locations.
Step Sewer
Tie downs strap must be made of stainless steel material
Please include location of water and sewer crossings on plans.
Please include location of all valves and connections on the sewer plans.
Please include invert elevations for step tank.
Please include location of side sewer, electrical hookups, alarm and control panel on the utility or sewer plans.
Please call out the step pump and type on sewer plans.
Please show existing step tank and what is happening with it, along with the pumping report to verify it has been pumped.
Water
Show existing and proposed line sizes on utility or water plans.
Please show and call out all valves and connections on the utility or water plans.
Please include any existing utility conflicts on plans.
All tees, crosses, elbows, adapters, valves, water meters, couplers and type must be included in utility or water plans.
Tees must include 2 valves and crosses must include 3 valves.
Please include a RPBA (Reduced Pressure Backflow Assembly) placed behind water meter. This is required for all dental and medical offices.
Please include thrust blocks on all water fittings, including in-line valves.
There must be a 10 feet horizontal and 18 inch vertical separation between all water and sewer connections
Please include on the plans, the existing water service line and what is going happen with it.
The following should be included on the water profile plans: Existing water crossings, fixtures, valves and couplers, size of lines, cover over pipe and grades.
Storm
Please include on the storm plan sheets the existing storm system along with conveyance, handling and treatment of the off site storm water from both street frontages.
Please include on the storm system plans existing and proposed on-site sanitary sewer system within 100 feet of storm retention facility.
Please include all stationing and numbers of each storm manhole and catch basin.
Please call out on plans each manhole and catch basin type and size.
Please show a profile plan which will include rim elevations, invert elevations for inlet and outlet, length, grade.
Please include soils type on erosion control plan.
Please include test pit and infiltration tests on erosion control plans.
It appears there is only open grate storm catch basin to send all the storm water to. Please check this condition and show direction of flow and how this is going to work
for the whole parking area.
Street
Removal of any street frontage street trees must first be discussed with and approved by the City of Yelm Planning Dept.
Please include all street frontage street improvements for both street frontages.
Driveway approaches and traffic bearing concrete must comply to detail “D” should be called out on plans, using 6” concrete depth.
Pedestrian access must be maintained along frontages during construction.
Street plan view must include: Flow direction arrows at curb return showing grades. Spot elevations on curbs, station PC, PT, PI and Intersections. Curve information Delta,
Radius, Length and Tangent BCR and ECR. Identify all field design situations. Typical sections. Pavement markings details, Sidewalks, Driveway entrances (type, width and material).
Curb ramp detail and type.
Profile view including elevations, transitions, flows and details.
Please include details and street general notes on street plans.
Is there going to be any lighting on this project? If so, please include on plans per City of Yelm design guidelines.
Note: Any road work must include a traffic control plan. Any work to be done on SR-510 (Yelm Ave.) must be submitted to and approved by the Washington State Department
of Transportation by contacting the Washington State Department of Transportation Olympic Region Construction Office.
Steve Harrington
Engineering / Civil Inspector
City of Yelm
Office (360) 458-8423 / Field (360) 561-4264