Loading...
DR0501-PR060206LAWRENCE ENGINEERING February 6, 2006 Ms. Suzan Taylor C.I.P. Coordinator City of Coppell 255 Parkway P.O. Box 9478 Coppell, Texas 75019 P06-0201 Phone 972-304-7019 Fax 972-304-3570 RE: Budget Estimate for Construction Materials Testing of Wagon Wheel Park Drainage Improvements Outfall Re-construction DR 05-01 City of Coppell, Texas Dear Ms. Taylor, Lawrence Engineering (LE) is pleased to be selected for the construction materials testing services for the Wagon Wheel Park Drainage Improvements project at Coppell, Texas. Our scope of services is based on our understanding of the project plans and project specifications. In addition to specific information provided, LE has comprised this project fee schedule based on an estimated duration of the construction period and typical construction methodology. Therefore, we request that you carefully review the on-site duration and frequency of testing to compare with your estimated construction schedule. As you know, our cost is directly dependent upon the time duration and construction methodology utilized. Scope of Services LE proposes to provide the following Construction Materials Testing Services for the Wagon Wheel Park Drainage Improvements project as required by the construction drawings and project specifications. Earthwork - Utility Trench Backfill LE will provide a soils technician to collect on-site soil samples for proctor compaction tests of different soil types to be used for the utility trench backfill, Soils technician will perform inspection of materials being placed and will utilize a nuclear density gauge to perform in-place density and moisture content test. Wagon Wheel Park Drainage Improvements Ms. Suzan T~o,lor P06-0201 February 6, 2006 Drilled Pier Foundation Installation Inspection during foundation pier drilling, concrete reinforcement fabrication and placement, and concrete testing during placement for the structural piers. This task shall be performed in accordance with the construction drawings and project specifications. Due to possible difficulties in pier location access and pier casing requirements, LE estimates the pier drilling operations to required approximately 1 work day to complete the pier installation. Based on eight-hour work day. Concrete Placement Inspection LE will provide a full time concrete technician during concrete placements. This includes the outfall headwall reconstruction, manhole sections and any other miscellaneous concrete placements. The project superintendent wild be notified of any discrepancies noted during visual observation. Concrete samples will be taken at appropriate intervals as determined by the project specifications. Concrete samples will be tested for temperature, entrained air content, slump, and compressive strength. Cost Estimate Presented on Table I attached is our cost estimate for this project. LE's estimates of testing quantities are based upon material estimates obtained from the Project Construction Drawings and assumed accepted industry standards for items not specified. We believe that our total cost estimate is realistic for this project; however, this estimate may be increased or decreased depending upon the actual project progress and the conditions encountered during construction. These are estimates. Consequently, billings only for services rendered will be based primarily upon the unit rates presented in Table I. An invoice for services performed during each month will be sent within the first 10 days of the following month. Payment for our services will be due within 30 days of receipt of invoice. Schedule Lawrence Engineering is prepared to begin work immediately upon notification to proceed from the project representative We are prepar~.d to respond to your needs with due diligence in a timely fashion, as well as establish a level of communication which facilitates progress. Acceptance Lawrence Engineering is committed to, and capable of, providing the required materials engineering and testing services that are necessary for timely and professional project performance. LE's engineering technicians are either certified by the American Concrete Institute and National Institute for Certification in Engineering Technologies (NICET) or enrolled in certification programs. Lawrence Engineering is regularly inspected by the Cement and Concrete Reference laboratory (CCRL), is accredited by American Association of State Highway and Transportation Official (AASTHO), and is certified by North Central Texas Region Certification Agency as Disadvantage Business Enterprise (DBE). Wagon Wheel Park Drainage Improvements Ms. Suzan Taylor P06-0201 Februa~ 06, 2006 We thank you for your consideration of this proposal and look forward to serving your professional needs on this project. If you require further information, please do not hesitate to contact us. Sincerely, Lawrence Engineering Gary D. Dry CMT Manager La~;ce Engine r'ng Ron Pleasant Operations Manager Table I Construction Materials Testing for Wagon Wheel Park Drainage Improvements Outfall Re-construction C.I.P. Project DR 05-01 City of Coppell Lawrence Engineering Proposal No. P06-0201 06-Feb-06 J Estimated Unit Estimated Service Description Quantity Units Price Cost Earthwork - Pavinq Subf:lrade~ Utility Trench Backfill Soils Technician - Portal to Portal (min 2 hrs per trip) 50 Hours $34.00 $1,700.00 Standard Proctor Compaction Test 4 Each $135.00 $540 00 Atterberg Limits 4 Each $45.00 $180.00 Material Finer than #200 Sieve 4 Each $4000 $160.00 Nuclear Field Density Test (min. 4 tests per trip) 48 Each $1500 $720.00 Trip Charge - Vehicle Usage 16 Each $25.00 $400.00 Subtotal $3,700.00 Drilled Pier Foundation Inspection Engineering Technician - Portal to Portal (min 2 hrs. per trip) 8 Hours $34 00 $272.00 Trip Charge - Vehicle Usage 1 Each $25.00 $25.00 Subtotal $297.00 Concrete Placement Inspection Concrete Technician - Portal to Portat (min 2 hours per trip) 24 Hours $3400 $816.00 Compressive Strength Test Cylinders (based on four cylinders per set) 32 Each $14.50 $464.00 Trip Charge - Vehicle Usage 8 Each $25.00 $200.00 Subtotal $1,48000 Project Management Project Manager - General Project Coordination/Report Review 4 Hours $6500 $260.00 Subtotal $260.00 Estimated Total Cost $5,737.00 NOTES: 1. Overtime and retest confirmation will be invoiced to project General Contractor. (If required) Overtime rates of 1.5 times the regular hourly rate will be charged for hours worked on the project outside the normal working hours of 7:00 am to 5:00 pm, over eight hours per day, excluding travel time to and from the jobsite, Monday through Friday. Services performed on Saturday and Sunday will be billed at 1.5 times the regular rate. Services performed on recognized holidays will be billed at 2.0 times the regular hourly rate 2. All laboratory test fees are EOB our laboratory; additional charge for sample pickup may apply. 3. Any additional tests will be billed on a hourly rate and charged at the applicable rate, portal to portal, 4. Additional test not specified in this proposal will be quoted upon request.