Allegheny River Tunnel Construction Management

Location:	Pennsylvania
Posted:	Feb 18, 2026
Due:	Apr 10, 2026
Agency:	Allegheny County Sanitary Authority
Type of Government:	State & Local
Category:	R - Professional, Administrative and Management Support Services Y - Construction of Structures and Facilities
Publication URL:	To access bid details, please log in.

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Allegheny County Sanitary Authority (ALCOSAN)

REQUEST FOR QUALIFICATIONS

for

PROFESSIONAL SERVICES

ALLEGHENY RIVER TUNNEL CONSTRUCTION MANAGEMENT

Capital Project No. S-490

February 18, 2026

1.0 INTRODUCTION

The Allegheny County Sanitary Authority (“ALCOSAN”) is soliciting Letters of Interest and

Statements of Qualifications (collectively, “Submittals”) from Construction Management or

Engineering firms interested in providing Professional Services for Construction Management

(CM) for the Allegheny River Tunnel (ART) project. The selected firm will provide services as

outlined in this Request for Qualifications.

This document is intended to assist firms in preparing their Submittals for this project.

All Submittals that fail to conform to requirements set forth herein will not be

considered by ALCOSAN.

The ART project currently includes the following construction contract packages:

• ART Contract, which includes:

o ART tunnel

o A-22 drop shaft, adit and near surface facilities and A-23 near surface facilities –

including an active control gate building

o A-29 and A-29Z drop shaft, adit connection and near surface facilities

o A-41 drop shaft, adit connection and near surface facilities including an off-site grit

facility – including an active control gate building

o A-42 drop shaft and near surface facilities – including an active control gate building

o A-60 drop shaft, adit connection and near surface facilities – including an active control

gate building

o A-62 drop shaft, adit connection and near surface facilities

o A-64 drop shaft, adit connection and near surface facilities and A65 near surface

facilities

o A-67 drop shaft, adit connection and near surface facilities

o A-68 drop shaft, adit connection and near surface facilities

o A-69 drop shaft, and near surface facilities

o A-70 drop shaft, and near surface facilities

o A-71 drop shaft, and near surface facilities

o A-72 drop shaft, tunnel relief outfall and near surface facilities

More specifically, the physical scope will include, but not be limited to the following:

approximately 6.2 miles of 18-foot finished diameter tunnel at depth ranging from 100 to

350 feet; connecting to the Ohio River Tunnel at the AS1 site near the Veterans’ Bridge –

to be constructed using tunnel boring machine technique; drop shafts ranging from 20 to 40

feet in diameter and from 100 and 180 feet in depth; over 5,000 linear feet (LF) of adits

ranging from seven to 14 feet in diameter; new regulators; over 5,000 LF of sewer ranging

from 12 to 84 inches in diameter; one relocated outfall at A-72 and two modified outfalls at

A-22/A-23; and four active control gate buildings.

• Upper Allegheny Consolidation Sewer (UACS) Contract, which includes a consolidation

sewer between A-72 and A-78, and near surface facilities at A-73, A-74, A-75, A-76, A-77,

and A-78. The consolidation sewer will connect to the ART at A-72.

More specifically, the physical scope will include, but not be limited to the following:

approximately 1.3 miles of new consolidation sewer ranging from 60 to 72 inches to be

installed using microtunneling at depth ranging from 20 to 55 feet; eight construction shafts

with seven finished manholes; five new regulators; over 900 LF of 18- to 42-inch sewer

and associated manholes; two outfall modifications and one elimination.

Additional early works construction contract packages (pre-tunnel construction) may be added

to the project scope and the scope of Construction Management as determined necessary by

ALCOSAN. These projects may include above and below ground structure demolition, utility

relocation, and other sitework in preparation for tunnel construction.

Facilities associated with the ART Contract and UACS Contract are currently at 30% design

and 70% design milestones, respectively. The starting point of the designs was the ART

Preliminary Basis of Design Report (PBODR). A map of the ART project illustrating major

changes to the PBODR as of January 2024 is included in Appendix A. Additional changes are

being made as part of the ART 30% design and UACS 70% design that are not reflected on the

map. Appendix B includes a more detailed UACS map based on the 70% design. The map

does reflect the additional changes associated with UACS as of January 2026. Changes to the

ART made as part of the ART 30% design and additional technical information about both

Contracts will be made available to shortlisted firms as part of the Request for Proposals phase.

The selected firm will provide CM services for the entire ART project, i.e., for all Contract

packages mentioned above. The ART Construction Manager (CM) will provide traditional CM

type services including, but not limited to, constructability and biddability reviews, and

resident inspection and construction administration for these contract packages.

The ART CM will be a part of a team of consulting firms to implement the ART project.

ALCOSAN has hired CDM Smith as the Clean Water Program Director, Jacobs as the Tunnel

Program Manager Consultant (TPMC), WSP as the ART Final Design Consultant (FDC) and

DLZ as the UACS FDC. These consultants are working together with ALCOSAN to

successfully deliver the ART project and overall regional tunnel system.

In addition, to maintain objective third-party views, the ART CM Prime Consultant will be

precluded from bidding either as a Prime or a Subconsultant on any of the ART or UACS

construction packages. Subconsultants may bid on certain procurements, dependent upon the

scope of work.

2.0 COMMUNICATIONS REGARDING THE REQUEST FOR QUALIFICATIONS

Questions and requests for clarification regarding this Request for Qualifications (“RFQ”)

must be directed, in writing, to:

Tawanda Stamps

Director of Procurement

Allegheny County Sanitary Authority

3300 Preble Avenue

Pittsburgh, PA 15233-1092

Email: procurement@alcosan.org

Please do not contact other ALCOSAN employees regarding this procurement; this

may result in your submittal being rejected. Responses to all general questions and

requests for clarification will be posted on ALCOSAN’s website. ALCOSAN will provide,

in writing, any clarifications, changes and/or other information deemed to be necessary as

addenda to this RFQ. ALCOSAN cannot guarantee responses to any questions received

after 2:00 p.m. March 31, 2026.

An informational meeting will be held via Microsoft Teams on March 2, 2026, at 9:00

a.m. (EST). All parties interested in attending the informational meeting shall notify the

Procurement Department (procurement@alcosan.org). Once notifications are compiled,

ALCOSAN will email a Microsoft Teams meeting invite to participants. This meeting is

not mandatory, but all interested parties are strongly encouraged to attend.

Responses to all general questions and requests for clarification will be posted on

ALCOSAN’s website. ALCOSAN will provide, in writing, any clarifications, changes

and/or other information deemed to be necessary as addenda to this Request for

Qualification (RFQ). ALCOSAN will not provide responses to any questions received after

seven (7) days prior to the submittal date.

3.0 OBJECTIVE

ALCOSAN proposes to retain a highly qualified Construction Management or Engineering firms

to provide the services described herein. Firms and team members with significant experience

delivering projects with similar characteristics will be given prime consideration for this project.

Those firms that participate in this RFQ process will be referred to as “Proposers.” “Proposer”

and its Subconsultants shall be referred to collectively as the “Team.” The successful firm shall

be referred to as the “Allegheny River Tunnel Construction Manager”.

The specific objectives of this project are as follows:

• Review and comment on ART and UACS FDCs’ design products with focus on

constructability, construction schedule, construction cost, and biddability.

• Provide bidding assistance

• Provide construction contract administrative support

• Provide resident inspection

• Review the ART and UACS Critical Path Method Project Schedules.

Coordinate review of Contractor’s schedule submissions and integration into

the overall Tunnel Program schedule by the TPMC and update Critical Path

Method Project Schedules.

• Coordinate and document start-up and commissioning activities.

The Firms and proposed personnel must, as a team, be able to demonstrate construction

management / resident engineering experience on projects with the following key

technical elements:

• Early Works projects, including above and below ground structure demolition,

utility relocation, and electrical site work

• Tunnels constructed in varying rock conditions below ground water

• Conventional tunnel excavation (drill and blast)

• Working in gassy subterranean environments

• Tunnel excavation by pressurized face tunnelling methods

• One-pass precast bolted gasketed segmental concrete lining systems

• Mined adit connections

• Large diameter deep shaft construction in soils and rock.

• Microtunneling and pipe jacking

• Tunnel and near surface facility excavation dewatering methods

• Complex geometry of hydraulic diversion structure construction

• Live sewer flow diversion work

• Mechanical, electrical and control systems installation and testing

• Odor control facility construction

• Environmental/permit compliance (including but not limited to noise, dust,

particulates, traffic, muck handling and disposal, contaminated materials

handling and disposal, construction along rivers, erosion, and sedimentation

controls)

• Tunnel safety management

• Heavy construction health, safety, environment, and welfare (HSEW)

• Underground risk management, including administration of Geotechnical

Baseline Report and Differing Site Conditions

• Information and collaborating with a Dispute Resolution Board (DRB)

4.0 SCOPE OF SERVICES

Project Name:

No:

Location (subject to change):

Schedule (subject to change):

ART Construction Management

Capital Project No. S-490

Various locations

(see maps included at the end of the RFQ)

ART Design 2025-2028

ART Bidding Q4 2028-Q1 2029

ART Construction/Place into Operation 2029-2035

UACS Design 2023-2027

UACS Bidding Q1 2027-Q2 2027

UACS Construction/Place into Operation 2027-2030

A. Preconstruction Phase

Preparation of a Project specific CM Implementation Plan to identify how the selected firm

will organize its staff and establish procedures to monitor and manage the work in meeting

the cost, schedule, safety, and quality objectives for the project.

The CM will review design work products, released by the ART and UACS FDCs, for

constructability including the 60%, 90% design packages and review the 100% documents for

biddability. Each of the submittals will include a cost estimate. The CM will be required to

review the estimates in coordination with the TPMC.

The CM will perform a biddability review to ensure that the Contract Documents are ready for

bid and construction purposes. The documents will be reviewed to identify problem areas,

means of expediting the construction and administration of the project, and to avoid potential

claims and delays. Special attention must be given to the different prime contracts. CM shall

verify that all responsibility for work is clearly defined. It must also verify that work

responsibility is not duplicated. CM shall survey the existing labor and contractor markets to

assess availability for ALCOSAN projects. CM will provide input into how the sequencing and

scheduling of projects may need to be adjusted to maximize participation by potential

construction bidders.

B. Bidding Assistance

The CM will provide services during the bidding periods. For each project, all requests for

clarifications or substitutions will be initially directed to the CM who will then obtain input

from ALCOSAN and the ART and UACS FDCs and/or the TPMC, as necessary. The need

for addenda will be determined by the ART and UACS FDCs with input from ALCOSAN

and the TPMC. The CM will attend all pre-bid meetings along with ALCOSAN. The

meetings will be arranged and conducted by ALCOSAN. The CM will also prepare minutes

of the meetings and distribute them to all attendees.

This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.

Allegheny River Tunnel Construction Management

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See also