Title
Discuss and consider action to approve a supplemental agreement #1 with Halff Associates, Inc.in the amount of $396,928.00 for professional engineering services associated with the Heatherwilde/Windermere Subdivision Street Reconstruction Project and authorizing the City Manager to execute the agreement.
Summary
This project will reconstruct subdivision streets in the Heatherwilde/Windermere subdivisions. The streets include: Cactus Blossom Dr., Columbine St., Ardisia Dr., Simsbrook Dr., Dashwood Creek Dr., Blackthorn Dr., Thackeray Ln., Gravesend Rd., Isle of Man Rd., Gower St., Isle of Man Ct. and Langland Rd.
A preliminary engineering report (PER) was prepared by Hallf Associates in April 2016 as part of the initial agreement that included pavement design and geotechnical investigation information in order to determine design scope and costs. This PER provided recommendations for reconstructed street sections with 2 inches of Type C HMAC over 8 inches of recycled cement treated base.
The proposed scope of work in this supplemental agreement includes:
• approximately 6,600 linear feet of street in the Heatherwilde Subdivision;
• approximately 8,500 linear feet of street in the Windermere Subdivision;
• reconstruction of approximately 8,500 linear feet of sidewalk;
• approximately 250 driveway approaches; and
• curb and gutter failures will be identified and replaced as needed.
Preparation of the final engineering construction documents shall include but not be limited to: project design, topographic surveys where required, geotechnical investigation, environmental assessment and environmental clearances, identification of utility conflicts, required utility adjustments and replacements, coordination with utility companies, determination of ROW/easement acquisition, preliminary and final engineer’s opinion of probable construction cost, project manual and any other items necessary to successfully construct this project.
This project will be designed in accordance with the City of Pflugerville’s 2015 Edition of the Uniform Development Code and 2015 Edition of the Engineering Design Guidelines & Construction Manual.
This agreement has been reviewed and approved by the City Attorney.
Status
City staff have negotiated with Halff Associates, Inc. to establish a scope of services, schedule and fee for this agreement.
Prior City Council Action
Halff Associates, Inc. was selected as the most qualified firm for this project at the April 14, 2015 City Council meeting. On July 28, 2015, a professional services agreement was approved by the City Council for $93,960 for a preliminary engineering report that included pavement design and geotechnical investigation information in order to determine design scope and costs.
Fiscal Impact
The design for this project is being funded through the 2014 general obligation bonds.
Staff Recommendation
Staff recommends approval of the professional services supplemental agreement #1 with Halff Associates, Inc.in the amount of $396,928.00 for services associated with professional engineering services for the Heatherwilde/Windermere Subdivision Street Reconstruction Project.
Drafter
Tom Word
Assistant City Manager