HomeMy WebLinkAboutSWP272329(3) CITY OF RENTON
PLANNINGBUILDING/PUBLIC WORKS
MEMORANDUM
DATE: September 29, 1997
TO: Ron Straka
FROM: Clinton Morgan
SUBJECT: Humble &Associates/3500 Maple Valley Highway
The following two(2) Storm related items has been addressed by the above applicant. Please indicate
if you are satisfied with the responds.
1. The size and calculated capacity of the drainage pipe crossing the Maple Valley Highway
needs to be confirmed that no over capacity problems will occur.
2. Show confirmation that the site run-off rate is still less than 0.5 cfs since the site area
impervious surface area has been increased.
I will call for mylars pending your approval of received responds.
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FLOW CALCULATIONS HUMBLE OFFICE page 1
REH ( 94-048) DATE: 9-25-597
BASIN SUMMARY
SSE D,As',N AREA MAP CExt+tEi7 'A\
BASIN ID: 3a NAME: dev 100YR-24hr pipe sizing
SCS METHODOLOGY
TOTAL AREA. . . . . . . : 1 .38 Acres BASEFLOWS: 0 .00 cfs
RAINFALL TYPE. . . . : TYPE1 PERV
PRECIPITATION. . . . : 3 . 90 inches AREA. . : 0 .00 Acres 1IM Acres
TIME INTERVAL,. . . . : 10 . 00 min CN. . . . : 0 . 00
98 .00
ABSTRACTION COEFF: 0.20 TC. . . . : 0 .00 min 6 .30 min
PEAK RATE: 1.21 cfs VOL: 0 .41 Ac-ft TIME: 500 min
Circular Channel Analysis & Design
Solved with Manning's Equation
Open Channel - Uniform flow
Worksheet Name: HUMBLE & ASSOCIATES
Comment : PIPE SIZING FOR 12" CONC PIPE ACROSS SR169
Solve For Actual Depth
Given Input Data:
Diameter. . . . . . . . . . 1.00 ft
Slope.. . . . . . . . . . . . 0 .0050 ft/ft
Manning's n. . . . . . . 0 .012
Discharge. . . . . . . . . 1 .21 cfs
Computed Results :
Depth. . . . . . . . . . . . . 0 .47 ft
Velocity. . . . . . . . . . 3 .37 fps
Flow Area. . ... . . . . . 0 .36 sf
Critical Depth. . . . 0.46 ft
Critical Slope. . . . 0 . 0051 ft/ft
Percent Full . . . . . . • ,46.63 §
Fu11 ,Capacity. . . . . 2 .73 cfs
QMAX @.94D. . . . . . . . 2 .94 cfs
Froude Number. . . . . 0.99 (flow is Subcritical)
Open Channel'Flow Module, Version 3 .43 (c) 1991
Haestad Methods, Inc. * 37 Brookside Rd * Waterbury, Ct 06708
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HUMBLE OFFICE -
FLOW CALCULATIONS
REH ( 94-048) DAT� 9-8-97 •
------------------------------------------------------------=--------
BASIN SUMMARY
BASIN ID: lAaa NAME: 100YR- DEV. CONDITIONS
SCS METHODOLOGY
TOTAL AREA. . . . . . . : 0 .30 Acres BASEFLOWS : 0 . 00 cfs
RAINFALL TYPE . . . . : TYPElA PERV IMP
PRECIPITATION. . . . : 3 . 90 inches AREA. . : 0 . 00 Acres 0 . 30 Acres
TIME INTERVAL. . . . : 10 . 00 min CN. . . . : 0 . 00 98 . 00
TC . . . . : 0 . 00 min 6 . 30 min
ABSTRACTION C 0 . 20
PEAK RATE: 0 .26 cfs VOL: 0 . 09 Ac-ft TIME : 500 min
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LETTER OF TRANSMITTAL
FROM: MELODY A. CHERRY
DATE: 24 OCTOBER 1997
RE: COPIES OF PRECONSTRUCTION MEETING MATERIALS
IM Water Utility El Building Division
Wastewater Utility Eq Public Works Constr Inspector
Surface Water Utility �'b ab lw ® Fire Prevention
Maintenance Services
0 Transportation Systems
Attached please find copies of
PERMIT BILLS OF SALE
RECEIPT COST DATA INVENTORY
LETTER OF SPECIAL BILLING EASEMENT(S)
STUB SERVICE AGREEMENT COPY OF AS-BUILT
LFI PRECON NOTES
t PRECON ATTENDEES
DRAINAGE REPORT �d�✓ w l
MEMO-WATER BREAKDOWN 1
MAP WITH NEW MAINS AND VALVES
" OTHER
C::MAC:PR ON:LT[It'IRANSM
CITY OF RENTON Construction Permit
Permit Number C970148
Permission is hereby given to do the following described work,
according to the conditions hereon and according to the approved
plans and specifications pertaining thereto, subject to compliance
with the Ordinances of the City of Renton..
Work Description
CONSTRUCT WATER, SEWER, ETC FOR HUMBLE OFFICE BLDG
C-j'JobA.ddroess0 MAPLE VALLEY HY ,)
Owner
HUMBLE DOUG
401 S 3RD ST
RENTON, WA
. .. ............... .
98057
Contractor
J H CONSTRUCTION Contractor's License SHCON*8033PH
11715 SE 320TH Contractor's Phone 253 939-1338
AUBURN, WA 98092 City License 20028
Contact HUMBLE, DOUG Contact's Phone 2 6 6-8 2 21
Other Information
Date Issued 10/23/1997 Work Order 88063
Date of Expiration 04/21/1998 Parcel Number 512690-0506
Date Finaled Inspector's Name
Inspector's Phone
It is understood that the City of Renton shall be held harmless of any and all liability, damage or injury
arising from the performance of the work described above. You will be billed time and material for any work
done by City staff to repair damages. Any work performed within the right-of-way must be done by a
licensed, bonded contractor. Call 277-5570 one working day in advance for inspections.
Locate utilities before excavating.
Call before you dig -48 Hour Locators 1-800-424-5555
I hereby certify that no work is to be done except Subject to compliance with the Ordinances of the
as described above and in approved plans, and that City of Renton and information filed herewith this
all work is to conform to Renton codes and permit is granted.
ordinances.
X X
Applicant Public Works Rep
THIS PERMIT MUST BE POSTED AT THE JOB SITE AT ALL TIMES.
BD3203e 08194 iif
****************************************************************
City of Renton WA Reprinted: 10/23/97 11:18 Receipt
****************************************************************
Receipt Number: R9706788 Amount: 3 , 777. 05 10/23/97 10 :39
Payment Method: CHECK Notation: #2179 D.HUMBLE Init: SJC
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Permit : C970148 Type: ENG ENG Construction Per
Parcel No: 512690-0506
Site Address: 3500 MAPLE VALLEY HY
Total Fees: 4, 556 . 33
This Payment 3 , 777 . 05 Total ALL Pmts : 4, 556 . 33
Balance: . 00
****************************************************************
Account Code Description Amount
000 . 343 .20 . 00 . 0000 Public Works Inspection 461 . 40
401 . 343 .90 . 00 . 0003 Stormwater Insp Approval 81 . 00
421 . 388 . 10 . 00 .0020 Spec Util Connect Sewer 1, 016 . 11
401 . 343 . 90 . 00 .0002 Sewer Inspection Approvl 71 . 88
401 . 322 . 10 . 00 . 0015 Sewer Permit 80 . 00
421.388 . 10 . 00 . 0031 Spec Assmt Dist, Sewer 898 . 86
401. 343 . 90 . 00 . 0001 Water Inspection Approvl 165 . 00
401 . 388 . 10 . 00 . 0013 Misc . Water Installation 40 . 00
401. 322 . 10 . 00 . 0020 Storm Water Permits 50 . 00
421 . 388 . 10 . 00 . 0040 Spec Util Connect Stormw 912 . 80
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
MEETING ATTENDANCE RECORD
PROJECT: A S Soc., DATE:
LOCATION: 3500 M�L Its o- Val COORDWATOR
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NAMEOMPANY ADDRESS/CITY M PHONE
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PLEASE NOTE:If you wish to receive the m,nutc of this meeting your Cuil address must be lined
PRE-CONSTRUCTION CONFERENCE
Humble &Associates
3500 Maple Valley Highway
October 23, 1997
GENERAL ITEM:
1. Use signed approved drawings only and keep copy on site at all times.
2. Provide metro form to be signed and returned.
3. Power,telecommunications and nat'l gas utilities will applies for a separate permit.
4. The above franchise utilities are to be separated a minimum of 5-ft. horizontally and 12-inches
vertical from City utilities.
5. Notify City Inspector 24-hours before starting to work.Phone number is (277-5570).
If you are going to work in the Public Right of Way you will need to notify fire and police
before starting to work. The Inspector may be able to help you there.
6. Work in right-of-way is weekdays, 8:30 AM to 3:30 PM.
Saturday work by approval.
No Sunday work.
7. Call for inspection by 3:00 p.m. the previous day. Overtime takes special authorization and
scheduling in advance. Inspection fee is $50.00 per hour for overtime. Provided for on
Authorization for Special Billing Form.
8. All utilities to be inspected prior to backfilling.
9. The contractor, as well as the Developers Engineer shall keep as-built records. All changes
shall be shown on as-built drawings. Method used, cross out what was change and then show
the change made.
All bends on waterlines shall be surveyed prior to backfill with horizontal and vertical control
for all bends established.
As-built drawings, must have a P.E. or L.P.S. stamp. Final occupancy will not be approved
until receipt and approval of as-built drawings.
10. Field Changes if minor, submit a shop drawing or schematic through the inspector or Fax 277-
4428. If major, the Developer's Engineer should submit drawings and complete justification,
information and calculations as applicable to the Plan Review Project Coordinator. The City
will answer by memo or schedule a meeting within two days. The Field Inspector will not
approval changes in the field.
HUMBLE.DO0
11. Bonding type security is 100% of cost of work done in the public right-of--way. The security
device may be a check, cash deposit, irrevocable letter of credit or assigment of funds.
FIRE PREVENTION:
1. Maintain access to site at all times. Must be able to support emergency equipment in all types
of weather.
2. All new hydrants shall be Cory or approved type hydrants which are to be painted Safety
Yellow. Iowa and Renselear are manufactures of Cory type. All new hydrants installled shall
be equipped with 5-inch diameter Stortz "quick connect" style fittings. All existing hydrants
shall be retro-fitted with the 5 inch diameter Stortz fittings.
3. New hydrants are to be covered with burlap bags until operational.
4. All blocking must be inspected by a City inspector prior to backfill.
5. Leads that exceed 50 feet in length shall be 8".
6. Call 911 from a local phone if the water main needs to be shut off(emergency only). All other
water mains or valves shut down,call Renton Water Department at 235-2646.
7. Fuel —any temporary on-site fuel supplies shall have a permit from fire prevention.
8. Notify central dispatch 24 hours prior to working in the right-of-way, (Local 911).
9. Hydrants to be operational before the building structure is started.
WATER
1. Pipe materials, valves and fittings shall be as indicated in the approved plans and standard
notes.
2. All connection to existing mains shall be accomplished by the City of Renton. The contractor
constructs the new water main about ten feet short of the existing main. All necessary
excavation, shoring, and materials are supplied by the contractor and shall be on-site prior to
scheduling. Allow at least two working days advanced notice. Schedule the connection through
the construction inspector.
3. Procedure for cleaning and construction testing of new water lines:
a. Temporary and permanent thrust blocks shall be formed. Concrete for thrust
blocking must be inspected before backfilling.
b. Pipe cleaning shall be by Poly pigging through vertical crosses installed at the
ends of the water lines to serve as pig launches and sediment traps.
HUMBLE.DOO
C. All water lines shall be pressure tested to minimum of 200 psi or 150 over
operating pressure (static) for 2 hours. Services may be tested separately by
visual inspection of the core stop under static pressure. Five(5) psi loss o.k.
d. Chlorinate for 24 hours, using liquid chlorine and chlorine pump assembly. The
inspector will schedule chlorinating. Five working days advanced notice is
required.
C. Water used for flushing water lines shall be drained into sanitary sewer only.
f Purity tests are collected by the construction inspector at blow-off and
hydrants. Water purity test are taken to the laboratory on
Wednesday. Contractor shall arrange courier service for any other day.
4. Crushed rock backfill to grade is required in City right-of-way. Recycled concrete may be used
in lieu of crushed rock backfill. Pit run type material may be considered for use in backfill by
the construction Inspector. Compaction testing may be required.
5. Where conflict exists,the water main shall go under other utilities, however, it is preferred that
no water mains shall have more than 6-feet of cover. All water mains shall have a minimum of
Meet of cover.
6. Final acceptance shall be after final walk through inspection, adjustment of all structures, and
approval of as-builds and cost data inventory.
SANITARY SEWER:
1. All pipes and materials shall be per approved plan and standard notes.
2. Pipe bedding for PVC pipe shall be pea gravel 6" above and below the pipe.
3. Select backfill shall be compacted to at least 95%of maximum density when located in a paved
area..
4. Contractor shall as-built the invert elevation of side sewer stub.
STORM:
1. Good erosion control measures are to be exercised at all times.
2. All pipes and materials shall be per approved plan .
3. Contractor must notify the Engineer of any vertical conflicts prior to proceeding with
construction. Submit a shop drawing for review.
4. Bedding material shall be per Standard Specifications 9-03.12(3).
5. Backfill shall be compacted to at least 95%of maximum density where vehicular traffic occurs.
6. City wants a nice smooth grout inside the CB.
HUMBLE.oaa
7. City inspector may request that the line be tamped.
8. The Storm System is to be all flushed and cleaned.
TRANSPORTATION
1. Use select backfill for open trenches and compact to at least 95%of maximum density for work
in the public right-of-way.
2.. Truck hauling on the Arterials are limited to 8:30 AM to 3:30 PM.
3. Keep a set of approved drawings on-site at all times.
4. Saw cut patching. Use 5/8 inch crush rock for backfilling.
5. An approved Traffic Control plan is required to work in the Public right-of-way. There is not
cost, but submit plan to the City's Transportation Office for approval.
6. Traffic control and signing to be in accordance the Manual on Uniform Traffic Control
Devices. Flaggers shall have hard hats, vests, signs and certification card. Truck maneuvering
to be on site. The right-of-way to remain unobstructed when possible.
7. Provide traffic control plan for each type of situation and note locations. Also note where
flagman will be used.
8. Contractor shall not leave open trenches overnight with out proper cover.
9.. Restoration of Area's in the public right-of-way needs to be do as quickly as possible.
10. Use cold mix for temporary patching.
10. Use barricades where and when needed.
The End
97CM153
HUMBLE.DOM