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| ARF- 265 |
Consent Agenda Item 4- D
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| Regular BOS Meeting |
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| Request/Subject |
| Amendment No. 1 to Contract No. SS71803D for New Bridge Over Tonto Creek Engineering Services to move forward with Phase II of the project and add new Scope of Services, Design and Cost Summary. |
| Background Information |
| Effective November 3, 2009, Gila County and Kimley-Horn and Associates entered into a contract whereby Kimley-Horn agreed to provide Professional Engineering Services for the Tonto Creek Bridge Project. The project consisted of two Phases. Phase I of the project is nearing completion and the County has authorized the Engineer to move forward with Phase II per Article IX of the contract. |
| Evaluation |
| Per Article IX, Phase II , scope and fee may be renegotiated and additional or deleted work, as agreed upon and authorized by the County, will be performed per a mutually agreed upon scope and fee between the County and Engineer. Engineer will proceed only as individual tasks are authorized by the County Public Works Director. Federal funds, which are the primary source of funding the project, will allow geotechnical investigations to proceed prior to issuance of the Enviornmental Analysis (EA), but will not allow the other tasks to move forward until the EA is approved. The attached scope of Work and Cost Proposal Summary by reference are made a part of the amendment as to the same extent as set forth in full. |
| Conclusion |
The original cost of Phase II had an authorized budget of $747,309. After completion of Phase I it was necessary to modify the design and scope of work resulting in a cost increase to complete Phase II. Per the existing Intergovernmental Agreement with the Arizona Department of Transportation (ADOT), the Federal Highway Administration (FHWA) will fund 94% ($895,842) and the County will fund 5.7% ($54,150). There is sufficient FHWA funding available in the existing agreement for Phase II and the County also has sufficient funds available for its share.
Amendment No. 1 to Contract No. SS71803D will allow for an increase of $202,683 with a Phase II completed authorized budget of $949,992.
Changes in project from original assumptions:
Kimley-Horn: $527,309 to $682,730
• Tonto Creek Bridge went from 1620-ft to 1980-ft length
• Modified Store (the Recommended Alternative)includes re-profiling of Old Hwy 188 and reconstruction of Tonto National Forest Reno Admin site driveway
• Added a necessary drainage structure (Bridge) at Oak Creek for transsportation system connectivity
• Added roadway improvements to Cline Blvd (near Oak Creek)for transsportation system connectivity
• Added drainage analysis and plans for Oak Creek for transsportation system connectivity
AMEC: $200,000 to $227,262
• Added 5 additional borings at Oak Creek
Survey (AZTEC): $10,000 to $30,000
• Added full right-of-way plans/mapping
• Added pot holing for utilities along Old Hwy 188
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| Recommendation |
| The Public Works Division recommends the Board of Supervisors approve Amendment No. 1 to Contract No. SS71803D with Kimley-Horn and Associates for the Professional Engineering Services of Phase II on the New Bridge over Tonto Creek. |
| Suggested Motion |
| Authorization of the Chairman's signature on Amendment No. 1 to Contract No. SS71803D between Gila County and Kimley-Horn and Associates in the amount of $949,992 to approve Phase II scope, design, and cost proposal per Article IX of the contract for Professional Engineering Services on the New Bridge Over Tonto Creek project for the period November 3, 2009, through November 3, 2011. |
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