• Design Build | Alternative Project Delivery | Highway & Bridges | Civil & Utility | Concrete | Demolition, Remediation, & Abatement | Pile Driving | Rail & Mass Transit | Ports & Marine

RIDOT I-95 PROVIDENCE VIADUCT NORTHBOUND

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  • PROJECT

    RIDOT I-95 Providence Viaduct Northbound

  • MARKETS

    Design Build
    Alternative Project Delivery
    Highway & Bridges
    Civil & Utility
    Concrete
    Demolition, Remediation, & Abatement
    Pile Driving
    Rail & Mass Transit

  • CONTRACT TYPE

    Design Build Prime Contractor

  • PROJECT OWNER

    The Rhode Island Department of Transportation

  • LOCATION

    Providence, RI

  • AWARDS

    DBIA 2025 Gold Award - Horizontal Construction

Printable PDF

The Rhode Island Department of Transportation I-95 Providence Viaduct Northbound Design-Build Project in Providence involved the full replacement of the seven-span Bridge No. 578 on I-95, as well as the replacement, widening, and rehabilitation of 10 additional bridges along the corridor. As part of a Joint Venture, Manafort Brothers, Inc. was selected as the Design-Build Prime Contractor to deliver this complex project within one of the state’s most heavily traveled interstate sections.

 

The design-build team developed an innovative traffic configuration through the I-95 interchange to reduce congestion and weaving for the 200,000 vehicles per day that travel through this interchange in downtown Providence. The project includes construction of a 1,290-foot viaduct bridge featuring two I-95 express lanes, three collector-distributor lanes, and on-ramp connections from Route 6/10 and downtown Providence. Additional work includes replacement of Bridge No. 703 (RI-146 over I-95), Bridge No. 701 (Smith Street over I-95), and Bridge No. 1379 (Atwells Avenue on-ramp to I-95 Northbound).

The team utilized Accelerated Bridge Construction (ABC) techniques, including Prefabricated Bridge Units (PBUs) over the Amtrak right-of-way, to efficiently widen Bridge No. 706. To address challenging geotechnical conditions, ultra-light foam glass aggregate (ULFGA) fill was incorporated into mechanically stabilized earth (MSE) walls to achieve net-zero loading.

 

As Design-Build Prime Contractor, Manafort self-performed a majority of the work, including excavation, substructure concrete rehabilitation, superstructure concrete, drainage, and roadway construction. Leveraging extensive design-build expertise. The project was successfully completed safely, on budget, and on schedule.

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