Consideration and Approval of Contract:  Lone Tree Overpass Project - Award of the Third Amendment to the Design-Build Services Agreement to Ames Construction in an amount not to exceed $1,583,826.20.

1. Award of the Third Amendment to the Design-Build Services Agreement to Ames Construction in an amount not to exceed $1,583,826.20; and 
2. Authorize the City Manager to execute the necessary documents.

This Third Amendment will provide for an early construction work package to prepare for construction of the Lone Tree Overpass Project ("Overpass" or "Project"). This Third Amendment includes cost for demolition of existing buildings, railway shoring design, and contingencies for subsurface utility investigation, aesthetics and public art design, environmental clean up, and fuel escalation.

The Lone Tree Overpass Project (north of Butler Avenue) is currently budgeted in FY2022-2023 in the amount of $9,685,736 and anticipated to be funded in FY2023-2024 in the amount of $8,000,000 in the Transportation Fund, Account Number 047-10-112-3054-6. The Lone Tree Corridor Project (south of Butler Avenue) is currently budgeted in FY2022-2023 in the amount of $1,900,000 and anticipated to be funded in FY 2023-2024 in the amount of $1,000,000 in the Transportation Fund, Account Number 048-10-118-3495-6. The cost for the public art design will be provided from the Beautification, Arts, and Sciences Program, Account Number 051-07-212-3419.

Safe and Healthy Community -

• Foster a safe, secure, and healthy community.
• Ensure the built environment is safe through the use of consistent standards, rules and regulations, and land use practices.

Inclusive and Engaged Community -

• Advance social equity and social justice in Flagstaff. 

Sustainable, Innovative Infrastructure -

• Deliver outstanding services to residents through a healthy, well maintained infrastructure system.
• Utilize existing long-range plans that identify the community's future infrastructure needs and all associated costs.
• Identify smart traffic management, multi modal transportation, and alternative energy opportunities.

Environmental Stewardship -

• Implement sustainable building practices and alternative energy and transportation options.
• Implement, maintain and further the Climate Action and Adaptation Plan.

Regional Plan – Goal T.2.  -

• Improve transportation safety and efficiency for all modes.

A previous City Council reviewed options for the Lone Tree Overpass Project and directed staff to prepare ballot language for a $73M bond project to be funded through secondary property tax in the 2018 election, which was passed by the Flagstaff voters.

On February 2, 2021, the City Council awarded the first design phase agreement to Ames Construction.
On September 7, 2021, the First Amendment to the Contract was approved.
On March 1, 2022, the Second Amendment to Contract was approved.

1. Approve the Third Amendment to the Design-Build Services Agreement to Ames Construction as presented; or
2. Reject the Third Amendment to the Design-Build Services Agreement and direct Staff to re-negotiate the terms and fee structure with Ames Construction.

The Lone Tree Overpass has been a planned project for over two decades in the Flagstaff community. The Lone Tree Overpass Study, which evaluated conceptual design options for the bridge and adjacent surface streets was completed in 2010. The goal of the Project is to provide better connectivity for the City's transportation network and provide a grade-separated crossing over the BNSF Railway corridor and the future Rio de Flag channel, which increases safety and convenience for multi-modal commuters. 

The Overpass project also coordinates with the future planned improvements of the Lone Tree Corridor reconstruction, which was studied in a report completed in 2006. The Lone Tree Corridor and Overpass serves to connect the southern area of town with the Route 66 corridor and provides an option that reduces congestion on other roadway corridors, including Milton Road.  

A portion of the Lone Tree Corridor from Sawmill Road to Butler Avenue is included in this Overpass design. This section of the corridor was included at this time to provide a coordinated improvement north and south of the Butler Avenue Intersection.

In November 2018, the voters were asked to approve a ballot measure to fund the Overpass (Proposition 420) and a separate ballot measure to fund the Corridor Improvements (Proposition 419). Both propositions passed.

In the fall of 2020, Ames Construction was selected by a six-member evaluation committee as the most qualified service provider for the Project pursuant to the evaluation and ranking process per A.R.S. sec. 34-603.

On February 2, 2021, Council awarded the first design phase services agreement with Ames Construction, on September 7, 2021, the First Amendment was approved, and on March 1, 2022, the Second Amendment was approved. These initial contracts included scope for preliminary roadway/bridge/intersection/rail design, agency coordination, right-of way acquisition and relocation, utility/drainage design and coordination, Economic Impact Study, public involvement, surveying, environmental clearances, and geotechnical analysis. This Third Amendment will provide for an early construction work package that includes cost for demolition of existing buildings, railway shoring design, and contingencies for subsurface utility investigation, aesthetics and public art design, environmental clean up, and fuel escalation.

This early work package will help prepare the project site for start of construction in the summer of 2023. The scope of this amendment includes: 

• Demolition of existing buildings and site clean up
• Railway shoring design
• Subsurface utility investigation
• Aesthetics and public art design
• Environmental clean up
• Fuel escalation

Ames Construction will be utilizing local Flagstaff resources for project demolition, site clean up, and environmental consulting services. 

The Lone Tree Overpass Project (north of Butler Avenue) is currently budgeted in FY2022-2023 in the amount of $9,685,736 and anticipated to be funded in FY2023-2024 in the amount of $8,000,000 in the Transportation Fund, Account Number 047-10-112-3054-6. The Lone Tree Corridor Project (south of Butler Avenue) is currently budgeted in FY2022-2023 in the amount of $1,900,000 and anticipated to be funded in FY 2023-2024 in the amount of $1,000,000 in the Transportation Fund, Account Number 048-10-118-3495-6. The cost for the public art design will be provided from the Beautification, Arts, and Sciences Program, Account Number 051-07-212-3419.  

In November 2018, the voters were asked to approve a ballot measure to fund the Overpass (Proposition 420) and a separate ballot measure to fund the Corridor Improvements (Proposition 419). Both propositions passed. 

The Lone Tree Overpass will provide a new roadway corridor and bridge over the BNSF Railway and the future Rio de Flag Flood Control Project, providing connectivity between Butler Avenue and Route 66 in central Flagstaff. Multi-modal transportation and alternative intersection design will be included in this Project to enhance all modes of transportation. This Project will also be designed with consideration of goals from the City's Climate Action and Adaptation Plan and the Southside Neighborhood Plan.

There was public coordination with the development of both the Overpass concept study and the Corridor Study in the early-late 2000's. There was also extensive outreach performed for Proposition 419 and 420 in 2018. Over the last year, there have been public meetings, Council discussions, City commission and committee presentations, City website and social media postings, the development of a project website, and one-on-one and group public meetings. Staff will continue outreach and another public meeting is anticipated prior to construction.