This Solicitation opportunity from Pennsylvania was posted on February 19, 2025. The submission period has ended. Browse the details below for market research, or find similar active opportunities.
Design And Installation Of Bridge Inspection Platform
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HNTB is seeking bids for the comprehensive design, fabrication, and installation of a durable scaffolding platform to facilitate bridge inspections on the I-81 over the Susquehanna River in Harrisburg, PA, on behalf of PennDOT. The platform must support a uniform load of 50 pounds per square foot, be capable of remaining in place for at least 10 years, and be sufficiently rigid to support ladder use on top. It will span approximately 408 feet, installed continuously across the bridge’s web-to-web steel girders, which are spaced 18 feet apart with 2-foot bottom flanges centered on the webs. The installation process involves starting from the shoreline using a boom lift and progressing over the river, with the platform securely anchored without welding, and designed to allow water drainage without holding or redirecting water onto bridge components. The bottom flange of the girders is roughly 80 feet above ground at shoreline level. Bids are divided into three categories: design and engineering, material and fabrication, and installation. The design phase includes a site visit for measurement verification and submission of sealed engineering drawings for approval. The fabrication involves constructing the platform to meet specified durability and functionality criteria, while the installation encompasses mobilization, delivery, and assembly of all necessary equipment and personnel. Bidders must also provide a separate bid for a tie-off system spanning the entire length for safety in case of platform failure. All proposal documents are to be submitted electronically via PennBid by March 7, 2025, with questions addressed through the same platform. The project’s estimated value ranges from $500,000 to $1,500,000, and PennDOT retains the discretion to award or not award the contract.
General Info
Agency
Place of Performance
PA, USASet-Aside
Documents
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Timeline
Submission Closed
Organization & Contact Information
Full Description
Designed for uniform load of 50 PSF. Remain in place and have a minimum life of 10 years. Be rigid enough for a ladder to be utilized on top. Installed at I-81 over the Susquehanna River (Wade Bridge) in Harrisburg, PA. Allow for drainage (must not hold water or redirect water onto the bridge elements). Span from web to web of adjacent steel girders 18’ apart with 2’ bottom flanges centered on the webs. Be firmly secured to the girders (without welding). Be installed continuously over a length of 408’.
See attached photos for project location and additional information. The bottom flange of girders where platform is to be installed is approximately 80’+ above the ground (measured at the shoreline). It is anticipated that installation will start from the shoreline using a boom lift and progress over the river utilizing the installed portions of platform for installation of adjacent platform. Bids will be separated into the following categories: - Design & Engineering - Material/Fabrication - Installation Design & Engineering: Includes site visit prior to design for verification of measurements for design/fit. Includes submission of design drawings which bear the seal of a Professional Engineer in the state of PA for review and approval prior to installation. Material/Fabrication: Includes the platform to remain in place as described above. Installation: Includes mobilization, delivery of materials and all necessary access equipment, tools, personnel, and safety equipment required to install the platform. Bids shall include a separate price for design and installation of a tie-off system along the entire 408’ length for bridge inspectors in case the scaffolding platform were to fail. Bidder / Proposal Documents can be obtained at no cost on PennBid at https://pennbid.bonfirehub.com/. Bids must be submitted electronically via PennBid by the date and time indicated. Questions regarding this project shall be submitted electronically via the “Ask a Question” feature in PennBid. Responses to questions will be posted on PennBid. Bidders who have registered with and downloaded documents for this project from PennBid will be notified when a change or addenda has been posted. PennDOT reserves the right to not award this project at their discretion.
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