RFQS_6100_CLMP400_SOS_v1.pdf

SCOPE OF SERVICES

Solicitation Number: CLMP400 Project Name: Gilleland Wastewater Interceptor

PROJECT FOR:

CITY OF AUSTIN, AUSTIN WATER, THROUGH ITS CENTRAL PROCUREMENT - CAPITOL

PROCUREMENT DIVISION.

PROJECT TITLE:

Gilleland Wastewater Interceptor (Coomer Path Lift Station Gravity Relief)

OBJECTIVES OF THE PROJECT:

The objective of this project is to provide a gravity interceptor that will eliminate the existing Coomer Path Lift Station. Conceptually, the project consists of approximately 7,800 feet of 30-inch gravity sewer and 7,600 feet of 36-inch gravity interceptor in the western Gilleland Basin. The sizing of the proposed 30 and 36-inch interceptors will be evaluated and verified based on design and stakeholder feedback about potential growth capacity. The proposed Gilleland Interceptor would allow for the gravity relief and abandonment of Coomer Path Lift Station and be able to accommodate future flows in the service area. The interceptor will convey flows from Coomer Path Lift Station and will connect downstream to the Wild Horse Interceptor at Manhole 321110.

BACKGROUND:

The Coomer Path Lift Station has been identified as having insufficient capacity for existing peak wet weather flows and future flows from projected growth in its service area. The lift station pumps were recently upgraded to increase the firm capacity of the lift station, but rapid growth in the service area quickly caused the flows to reach the existing firm capacity.

In addition, the lift station is significantly overallocated through recent service extension requests resulting in a total proposed peak weather flow that is nearly three times the firm capacity. Since capacity constraints at the lift station site do not allow for an expansion of Coomer Path lift station, the recommended solution from internal stakeholders at Austin Water is to construct the Gilleland Wastewater Interceptor to facilitate the gravity relief of Coomer Path Lift Station. Constructing a gravity interceptor will alleviate concerns of sanitary sewer overflows at the lift station and allow for continued growth in the area.

ANTICIPATED SERVICES:

The anticipated services will include civil engineering, geotechnical engineering, tunnel engineering, project management, investigation, analytical study, field services, evaluation, design, construction management, project coordination, community involvement, preparing maps, evaluation of historical data, preliminary engineering, final design and other engineering

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Revision Date 02/24/2020 SCOPE OF SERVICES Page 2 of 7 services as necessary for this wastewater interceptor project. Engineering disciplines under this contract may include civil, environmental, structural, geotechnical, and or other types of engineering. The services should be performed by engineering firms regularly engaged in municipal capital improvement projects related to wastewater infrastructure, specifically tunneling and wastewater interceptor projects. The professional services to be provided on this project will consist of engineering design, project management, and construction phase services.

Selected firms should be knowledgeable and experienced in wastewater collection systems, managing complex projects in urban and environmental sensitive areas, and developing cost effective and efficient recommendations for addressing system deficiencies. The firm on this project should enhance and complement the strengths of the City to provide a comprehensive set of resources and skill sets to complete a successful project.

REQUIRED TASKS:

Task 1 – Preliminary Engineering Report

Perform alignment studies and preliminary engineering to determine the best route and most cost-effective solution for the new interceptor including, but not necessarily be limited to, the following work items:

A. Prepare a “Project Delivery Plan” showing how the team’s organization of resources, and their approach to project management, will ensure the delivery of the Gilleland Wastewater Interceptor project on time and within budget. Additionally, project delivery plan will include quality assurance/quality control steps/plans to be implemented throughout the course of the entire project to ensure that the project will result in a constructible project within budget and as designed. This project delivery plan must be completed in draft form within 10 weeks of the notice to proceed and will be finalized as part of the preliminary engineering phase.

B. Develop a communications plan including community involvement and outreach for all appropriate levels of project development and execute plan elements, as required.

C. Review historic documents on the project, including earlier alignment options analysis.

D. Perform a route analysis/final alignment determination for the Gilleland Wastewater

Interceptor. Determine easements to be acquired. Identification of and support of City staff to obtain needed easements.

E. Conduct an evaluation of construction methods (open cut and/or tunneling) and provide an expert opinion on the most cost-effective method for constructing the project in consideration of different alignments.

F. Conduct a desktop study and as needed, perform preliminary surveying, geotechnical, and soils studies to facilitate the determination of the final alignment. Collect all available information concerning existing and proposed facilities in the project area, including but not limited to, water and wastewater pipelines, telephone, fiber optics, gas electric, drainage facilities, traffic signal systems and the petroleum products pipelines, etc.

Determine any sites constraints and special permitting requirements (federal, state, local), including recent revisions to the Land Development Code.

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G. Conduct required environmental evaluations including an evaluation of the environmental impact of chosen route and construction methods. The route analysis should include identification of known endangered species and critical environmental features in the project vicinity and an evaluation of route, tunnel shaft locations, and working spaces that would create the least amount of environmental impact.

H. Develop a project phasing plan to address construction timing, construction method, and other factors including environmental and social impacts.

I. Upon conclusion of the reviews, investigations and preliminary evaluations, prepare, present and publish details and summarization of the findings, solution options, and a design and construction schedule for the recommended interceptor.

J. Identify permitting requirements and prepare cost estimates and implementation schedule.

Task 2 – Design Phase

Upon written authorization from the City, proceed with the final engineering, design, and obtaining permits for the project, including, but not necessarily be limited to, the following work items:

A. Review, in two meetings with City staff, the City’s hydraulic model for this interceptor and confirm sizing and other hydraulic considerations.

B. Complete geotechnical investigations required to finalize design and provide Geotechnical Data Report and Geotechnical Baseline Report for tunneled portions.

C. Submit preliminary engineering design plans, showing the proposed alignment at 30% plan completion identifying tunnel access shaft locations and including connections from the scheduled to be abandoned lift stations to the new wastewater interceptor.

D. Develop a sequence of construction plans to maintain the existing lift stations in service while constructing new interceptor, then transition existing services to the new interceptor in the most cost-effective manner.

E. Prepare and submit detailed plans, draft specifications, construction bid documents and prepare a construction cost estimate at 60% design.

F. Identify construction staging areas adequate for construction operations.

G. Develop a mucking plan and identify hauling routes for removing and disposal of spoils from tunneling or open cut methods.

H. Prepare and submit detailed plans, draft specifications, construction bid documents and construction cost estimate at 90% design.

I. Prepare final plans, specifications, contract manuals and all construction bid documents for the final design.

J. Obtain regulatory reviews and approvals and obtain permits necessary for the construction of the project.

K. Confirm the number and size of easements required, including supporting the City on easement acquisition and assisting the City on developing and maintaining a schedule for obtaining the easements.

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Task 3 — Bidding Phase

A. Assist in advertising the project for bids and developing construction contract. Assist the City during the Pre-Bid Meeting and respond to all questions and pre-bid inquiries received in regard to the project.

B. Develop Addenda as required and submit sealed and accepted documents prior to the deadline.

C. Assist the City to review and evaluate the bids received.

Task 4 – Construction Phase

The City intends to employ its own forces to provide construction phase inspection services for the project. However, the City requires certain construction inspection services to be provided by the selected engineering consultant. At this stage of the project, the Engineer will provide services generally associated with the construction phase and might include, but not necessarily be limited to, the following work items:

A. Periodic visits to the project site by the design professionals to generally review the progress, character and quality of the work being performed by the construction contractor.

B. On site resident project representative for geotechnical and tunneling operations.

C. Review, comment on and approve shop drawings.

D. Review, comment on, assist and prepare any change orders that are deemed to be necessary.

E. Interpret plans, specifications and contract documents and respond to requests for information.

F. Conduct project reviews and inspections with the construction contractor and City representatives. Coordinate with City inspector to ensure preparation of accurate as built drawings of the completed facilities.

G. Review and approve the Contractor’s markup of as-built drawings of the completed facilities.

H. Prepare as-built drawings from the Contractor’s markups.

I. Review and recommend for approval or disapproval pay estimates of the Contractor for work completed.

J. Post construction, warranty review.

Task 5 – Warranty Phase

If authorized by City in writing, the selected engineering firm shall provide warranty phase services generally consisting of assistance to the City regarding project malfunctions or deficiencies corrected.

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PROPOSED PROJECT SCHEDULE:

Task 1 – Preliminary Engineering Report approximately 12 months Task 2 – Design Phase approximately 30 months * Task 3 – Bidding Phase approximately 6 months Task 4 – Construction Phase approximately 24 months Task 5 – Warranty Phase approximately 12 months

A more precise schedule will be developed following the selection of the engineering consultant and the execution of the professional services agreement.

* Including permitting and land acquisitions as required

PROPOSED PROCUREMENT SCHEDULE

RFQ Issue Date: 8/17/2026 Pre-Response Meeting Date: 8/26/2026 RFQ Submittals Due Date: 9/24/2026 RFQ Interviews (if necessary): 11/10/2026 Proposed Council Date: 1/21/2027 Proposed Contract Execution Date: 2/9/2027

COST ESTIMATE:

The professional services fee is estimated to be $4,000,000, and the estimated total construction cost is $28,000,000.

MAJOR AND OTHER SCOPES OF WORK:

Below is a list of the major scopes of work that the City has identified for this project. *There must be representation for all major scopes of work listed in the prime’s statement of qualifications. The experience of the firms listed to perform the Major Scopes of Work, whether a subconsultant or prime firm, will be evaluated under Consideration Item 6 – Major Scopes of Work – Comparable Project Experience.

In addition, the City has identified Other Scopes of work that MAY materialize during the course of the project. The City does not guarantee that the scopes listed under Other Scopes of work will materialize on this contract. If the prime consultant intends to enter into a subconsultant agreement on a scope of work not listed below, the prime consultant is required to contact SMBR and request an updated availability list of certified firms in each of the scopes of work for which the prime consultant intends to utilize a subconsultant.

* Major Scopes of Work Civil Engineering (92517)

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Tunnels and Subways/Engineering (92594) Surveying Services (90779) Environmental Permitting Services (92670)

Other Scopes of Work Geotechnical – Soils (92546) Environmental Engineering (92535) Real Estate/Land Consulting (91899) Utility Locator Service (Underground) (96291) Traffic and Transportation Engineering (92593) Structural Engineering (92588) Cost Estimating (96121) Drainage Engineering (92528)

Notes:

• Construction Inspection and Public Information and Communications are NOT a subconsultant opportunity. These services will be performed in-house or under a separate contract, if needed, and will be determined when project assignment is made.

• Participation at the prime or subconsultant level may create a conflict of interest and thus necessitate exclusion from future contracting opportunities with the City.

• If the City determines that a conflict of interest exists at the prime or subconsultant level, the City reserves the right to replace/remove the prime or instruct the prime consultant to remove the subconsultant with the conflict of interest and to instruct the prime consultant to seek a post-award change to the prime consultant’s compliance plan as described in City Code § 2-9B-23. Such substitutions will be dealt with on a case-by-case basis and will be considered for approval by Small and Minority Business Resources (SMBR) in the usual course of business. The City’s decision to remove a prime or subconsultant because of a conflict of interest shall be final.

• A consultant performance evaluation will be performed on all professional services contracts.

This evaluation will be conducted at the end of each Design and Construction phase.

• Please review the City of Austin’s Public Participation Principles

(https://www.austintexas.gov/page/city-austin-public-participation-principles)

CITY OF AUSTIN PUBLIC PARTICIPATION PRINCIPLES:

Accessibility and Inclusion The City is committed to providing a variety of options for participation, along with supportive resources and accommodations that enable underrepresented segments of our community to participate in a meaningful way.

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Accountability The City will provide complete and easy-to understand information on the issues, and make a complete record of feedback available to both participants and decision-makers.

Collaboration The City will work in partnership with the community to develop engagement processes that are appropriate to the needs and preferences of the participants, and that result in recommendations that are informed by the history and the shared knowledge of the communities we serve.

Consistency In every engagement, The City will provide advance notice of opportunities, meeting agendas, discussion agreements, timelines and clear information about how participation will be used in the decision-making process.

Respect The City will maintain a mutually respectful environment that cultivates and supports inclusive public engagement and honest dialogue between and among participants and City representatives.

Stewardship The City will conduct ourselves as stewards of the public’s resources, respecting and recognizing that the community has a voice in how those resources are used.