HomeMy WebLinkAbout20100750.tiff MEMORANDUM
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COLORADO
TO: Clerk to the Board DATE: April 5, 2010
FROM: Wayne Howard, Public Works
Coorsut-
SUBJECT: Agenda Item
Change Order No. 1 for the contract extension and pay rate schedule for 2010 on the On-Call
Geotechnical Contract extended from June 18, 2010, to June 17, 2011, with Terracon.
Attached are two original Change Orders. Please return one signed original to Public Works.
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2010 0750
BOARD OF COUNTY COMMISSIONERS
REVIEW/WORK SESSION REQUEST
RE: Terracon contract extension and pay rate schedule for 2010
DEPARTMENT: WELD COUNTY PUBLIC WORKS DATE: 3-30-2010
PERSON REQUESTING: Josh Holbrook, Weld County Public Works
Brief description of the problem/issue:
Change Order No. 1 — The original Agreement for Professional Services under the On-Call Geotechnical
Contract can be extended from June 18, 2010, to June 17, 2011, as permitted by the contract. This extension
would be in the final year of a four-year term limit. The 2009 rate schedule of the original contract is replaced
with the attached Exhibit A, rate schedule. There was no rate increase for 2010.
What options exist for the Board? (Include consequences, impacts, costs, etc. of options)
The Board may either approve or deny Change Order No. 1.
Recommendation to the Board:
I recommend approval of Change Order No. 1 for Terracon under the On-Call Geotechnical Contract to extend
their service contract for 2010.
Approve Schedule
Recommendation Work Session Comments
Douglas Rademacher, Chair r!gn
Barbara .{--
Kirkmeyer, Pro-Tem
Sean P. Conway z-'y V
William F. Garcia 1i.C
David E. Long V
Attachments
pc:
M:\—Active Projects\Engineering On-Call Services\Geoteehnical On-Call\Terracon\Change Orders\2010\Work Session Request.doc
CHANGE ORDER NO. 1
Weld County On-Call Geotechnical Testing Service / /
Date: �vl4 mit, J/O
Project: Weld County On-Call Geotechnical testing generally consists on ensuring materials used during construction meet
contract specifications for embankment, gravel,concrete and asphalt.
Owner: Weld County Public Works Department,PO Box 758, Greeley,Colorado 80632
Consultant: Terracon Consultants,Inc. 1289 First Ave,Greeley, Colorado 80631
The following change is hereby made to the Contract Documents:
Contract Time Extension: The original Agreement for Professional Services is extended from June 18th, 2010 to June
17`h, 2011 as permitted by the contract. This extension will be in the final year of a four
year term limit.
Change to Original Rate Schedule: The 2009 Rate Schedule of the original contract shall be replaced with the attached
Exhibit A,2010 Rate Schedule. There was no rate increase for 2010.
CHANGE TO CONTRACT PRICE:
See attached Exhibit A,2010 Rate Schedule
The limit of$50,000 compensation per work order is not modified by this change order and remains in effect.
CHANGE TO CONTRACT TIME:
The Contract time will be increased by 365 calendar days.
RECOMMENDED:
\) APR 1 2 2010
Owner Representative lyfx ( � *tom NG`� Date:
Do IVis Radem cher(C air)
Engineer: , Date: 3/o)6/O
APPROVALS:
Consultant: Terracon Consultants, Inc.
By: _s p Date: I J
Title: n -flick Ala a63P r
Exhibit A
ilerracon
Weld County Department of Public Works
On-Call Geotechnical Testing Services: Cost Sheet
ITEM NO. DESCRIPTION Unit PRICE
SOILS
101 Atterberg Limits, Classification,Liquid Limit, Plastic Limit, Plasticity Index Ea.Test 73.50
102 Hveem Stabilometer-"R"Value Ea. 310.00
103 Proctor-Standard Ea. 119.00
104 Proctor-Modified Ea. 129 00
105 Nuclear Field Density Test 3 or More Tests Per Trip Ea.Test 29.00
107 Sieve Analysis-(Plus#4 Material) Ea.Test 41.00
108 Sieve Analysis-(#4 to minus 200 Material) Ea.Test 46.00
CONCRETE
201 Standard Concrete Cylinders(Including sampling in Field,Slump, Unit Set of 4 227 00
Weight,Yield,Air Content,Temperature,Casting,Curing,Testing and
Reporting)
202 Compression Test(Cap,Cure and Break FOB Lab) Ea.Test 14.50
ASPHALT
301 Sieve Analysis-(Plus#4 Material) Ea.Test 46.00
302 Sieve Analysis-(Minus#4 Material) Ea.Test 51 00
303 Specific Gravity and Absorption(Plus#4 Material) Ea Test 67.00
304 Specific Gravity and Absorption(Minus#4 Material) Ea.Test 67.00
305 L A Abrasion Test Ea.Test 124.00
306 Fractured Face Determination Ea.Test 46.50
307 Flat and Elongated Particles Ea Test 46.50
308 Maximum Theoretical Specific Gravity for Air Voids(Rice) Ea.Test 88.00
309 Lottman(TSR)Test Ea.Test 248.00
310 Mix Design Bulk Unit Weight and Hveem Stability Verification Ea Test 258.00
311 Determination of Bitumen Content by Extraction,Gradation Analysis of Ea Sample 185,00
Extraction(To be sampled by Consultant)
312 Determination of Bitumen Content by Extraction(To be sampled by Ea Sample 124.00
Consultant)
313 Nuclear Field Density Tests(3 or More Tests per Trip) Ea.Test 27 00
314 Core Field Samples Per Hour 46 00
Per Inch 5 00
HOURLY RATES
401 Principal Engineer Per Hour 103.00
402 Geotechnical Engineer/Department Manager/Project Manager Per Hour 88 00
403 Senior Field Technician Per Hour 49.50
404 Field Technician Per Hour 49 50
405 Other Field Engineer/Geologist Per Hour 73 50
Exhibit A
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