GRG Bid# 2026-005-108X + Mississippi Greenway: + Maline Creek Streambank Stabilization + (108X) in St. Louis City, Missouri

Great Rivers Greenway is soliciting bids for the Mississippi Greenway: Maline Creek Streambank Stabilization project in St. Louis City, Missouri, under Bid Number 2026-005-108X, with a response deadline of June 5, 2026. The work encompasses streambank stabilization and trail reconstruction, requiring the furnishing of all materials, labor, equipment, tools, and supervision necessary to complete the project in accordance with detailed drawings and specifications. The project involves the design and construction of precast modular block retaining walls, geotechnical analysis using AASHTO LRFD and NCMA ASD methodologies, compliance with Missouri Department of Transportation standards, and adherence to ASTM testing protocols for aggregate and soil properties. Work must be performed within the BNSF Railway right-of-way and under the jurisdiction of the Metropolitan St. Louis Sewer District, requiring coordination with multiple utility and regulatory agencies as outlined in thirteen formal attachments including permits from USACE, MDNR, and St. Louis City, as well as BNSF licensing and scheduling requirements. The contract employs a trade-off evaluation method, awarding to the lowest responsive, responsible, and best-qualified bidder based on financial resources, relevant experience in greenway and site development projects, organizational capacity, technical qualifications, equipment, and ability to meet the schedule. While no fixed contract value is provided, liquidated damages of $475 per day apply for delays, and the payment process requires submission of the GRG Construction Application for Payment certified by the Developer’s Representative to [email hidden], with no use of federal invoicing systems like WAWF. The contract includes AIA-based special conditions such as performance and payment bonds, Change Orders and Field Orders for modifications, strict compliance with ADA and Missouri accessibility laws, anti-boycott certification, immigration law adherence, and a five-year record retention requirement. All work must conform to local, state, and federal regulations, with inspection and acceptance conducted at the project site by the Developer’s Representative, who holds authority to approve or reject materials, shop drawings, and construction activities. No FAR clauses are incorporated; instead, the contract relies on custom AIA templates and legally binding special conditions governing site access, temporary facilities, traffic control, and subcontractor flow-down obligations.