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18.

Meeting Date:	06/14/2011
Submitted For:	Tiffany Mcconnell	Submitted By:	Tiffany Mcconnell, Road Bond
Department:	Road Bond

Information

Agenda Item

Consider approving Change Order No. 19 in the amount of $35,863.48 for Williams Drive, a Road Bond Project in Precinct Three.

Background

This change order establishes a force account to compensate the contractor for additional items of work on various drainage and driveway items. All of the items of work were discussed and approved by the Williamson County and City of Georgetown Project Change Order Review Team and by Commissioner Covey. The following is a list of the additional items of work.

1. Construct dirt berm at Presbyterian Church from Sta. 517+00 to 525+00 Right. The adjacent properties were developed after the plans were completed. This work consisted of adding material and constructing a berm to prevent runoff from draining across the church landscaping. The berm provided a backslope for a ditch parallel to the roadway and directed drainage into a drainage easement just east of the church. Cost $3318.85

2. Regrade ditch at Sta. 518+00 to 530+00 Left. The adjacent properties were developed after the plans were completed. A building pad for an office development was constructed in the proposed outfall area at Sta. 521+00. The outfall was removed and a ditch was constructed to extend the parallel drainage to the pipe culvert at South Lakewood Drive. This culvert was installed in phases due to the location of utilities and phasing of construction in the area, requiring regrading of the ditchline multiple times to provide positive drainage.
Cost $16,756.25

3. Fine grading, placement, and removal of formwork for concrete rip rap from Sta. 586+00 to 588+00 Left. Formwork was placed per plan in the ditch from Sta. 586+00 to 588+00 Left. After the slopes were shaped and the forms were placed, field measurements determined that the slopes were too steep. Storm sewer pipe was installed in the ditch to eliminate the steep slopes, and concrete riprap was no longer required.
Cost $5963.75

4. Placement and removal of formwork for concrete driveway 51. Formwork was placed per plan at Sta. 627+00 Right (Bank of America). The City of Georgetown inspected the forms and requested changes to the driveway radii which caused the driveway to extend onto private property. The forms were removed to allow unobstructed access to the property until the property owner was notified and an access agreement was signed allowing construction of the driveway to extend onto his property. The formwork was reinstalled and the concrete was poured.
Cost $3951.30.

Page 2

5. Additional excavation at the corner of Old Oak and Williams Drive near Sta. 585+50 Right. A ditch was constructed on the east side of the Old Oak pavement tie-in to drain runoff from the tie-in back to the Williams Drive right of way.
Cost $925.10.

6. Removal of rock, additional excavation, and replacement of rock in outfall channel downstream of Cross Culvert 1. The downstream drainage easement was modified after plans were developed, and when the existing culvert was extended the new outfall elevation was below the elevation of the channel. Contractor removed the existing 3 x 5 rock from the channel, excavated to allow drainage, replaced the 3 x 5 rock in the channel and removed and replaced a section of fencing at the access location.
Cost $4948.23.

Total Cost of $35,863.48.

The total value of the work was determined by maintaining force account records for each days labor, equipment and materials used on each item of work. The force account records were maintained according to TXDOT Standard Specification, Item 9.5 Measurement and Payment, Force Account. Daily records of equipment, material, and labor costs are on file. This change order is considered minor with reason codes 2C, Differing Site Conditions (Unforseeable), New development (conditions changing after PS&E completed) and 4B, Third party requested work.

Fiscal Impact

From/To	Acct No.	Description	Amount

Attachments
09WC706 CO 19

Form Review

Inbox	Reviewed By	Date
County Judge Exec Asst.	Wendy Coco	06/09/2011 09:53 AM
Form Started By: kzaleski		Started On: 06/08/2011 01:52 PM
Final Approval Date: 06/09/2011