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TECHNICAL ADVISORY GROUP RECOMMENDATION
<br />TAG CONTRACTING RECOMMENDATION FORM WP-42F1S IBI CO-12 20160908.DOCX 2
<br />Original
<br />Agreement or
<br />Amendment
<br />Previous Project
<br />Cost
<br />Budget ($)
<br />Change
<br />Revised Project
<br />Cost Project Start
<br />Project
<br />Completion Comments
<br />Change Order
<br />No. 7
<br />16,616,174.40 16,378.55 16,632,552.95 08-Oct-15 22-Jul-17 Tee Manhole Addition, SS-10
<br />Manhole Revision
<br />Change Order
<br />No. 8
<br />16,632,552.95 257,901.37 16,890,454.32 08-Oct-15 22-Jul-17 Differing Subsurface Conditions,
<br />floating castings
<br />Change Order
<br />No. 9
<br />16,890,454.32 (55,349.74) 16,835,104.58 08-Oct-15 22-Jul-17 Differing Subsurface Condition, Wall
<br />Penetrations, CenturyLink Concrete
<br />Removal, Furnish and Install Signal
<br />Light Pull Boxes, City Hall
<br />Construction Accommodation and
<br />Misc. Items
<br />Change Order
<br />No. 10
<br />16,835,104.58 32,505.68 16,867,610.26 08-Oct-15 22-Jul-17 Disposal of 2B Vault, Differing
<br />Subsurface Conditions – Silo Disposal
<br />in Case Plaza, and Floodwall Cap
<br />Modification
<br />Change Order
<br />No. 11
<br />16,867,610.26 52,242.85 16,919,853.11 08-Oct-15 22-Jul-17 Differing Subsurface Conditions July
<br />Removals, Repair Storm Manholes,
<br />Contaminated Soils Removal, Storm
<br />Structure ST-8 Cover, Impressioned
<br />Concrete Modifications,
<br />Administrative – Accounting Change,
<br />Administrative – Owner’s Rep and
<br />Engineer Roles and Responsibilities
<br />Change
<br />Change Order
<br />No. 12
<br />16,919,853.11 77,641.54 16,997,494.65 08-Oct-15 22-Jul-17 Differing subsurface conditions and
<br />water main pipe bursting
<br />
<br />DISCUSSION
<br />Change Order No. 12 adds new and modifies existing scope elements to total an increase of $77,641.54 to the
<br />Contract Price. The Change Order consists of the following items:
<br />1. Differing subsurface conditions – Continued removal of unsuitable subsurface materials and debris.
<br />HMG reviewed Contractor’s documentation and found the cost of $75,196.30 to be acceptable. There
<br />is no schedule change associated with this change item.
<br />
<br />2. Pipe bursting – Existing water main at the intersection of 1st Ave N and 3rd St N was to be removed
<br />and replaced through an open trench. Contractor encountered previously unknown conflicts with a
<br />concrete-encased Centurylink duct bank running north/south in the intersection. Contractor, HMG,
<br />and City of Fargo evaluated the situation together and determined that removal and replacement by
<br />pipe bursting would be the least-cost method of accommodating the differing subsurface condition.
<br />The net change in Contract Price is an increase of $2,445.24 based on 42 linear feet of pipe installed
<br />by the bursting method instead of open trench. This amount is the result of adding 42 linear feet
<br />under new bid item 0246, Pipe Bursting 1st Ave N and 3rd St N for an increase of $10,215.24, and
<br />deleting 42 LF under existing bid item 0051, F&I Watermain Pipe w/GB C900 DR 18 – 8” dia PVC for a
<br />decrease of $7,770.00.
<br />
<br />HMG reviewed the proposed price for pipe bursting and found it acceptable. HMG also calculated the
<br />quantity to be deducted, and the resulting deduct amount is based on the awarded unit rate. There is
<br />no schedule change associated with this change item.
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