University of Minnesota Ionwave #01-063-25-3284 Addendum 1

Retaining Wall and Infrastructure Replacement at University of Minnesota Comstock and Yudof Halls

The University of Minnesota is seeking construction services for the replacement of failing limestone retaining walls at Comstock and Yudof Halls on its Twin Cities campus in Minneapolis, MN. - Government Buyer: - University of Minnesota, Capital Project Management (Facilities Management) - Products and Services Requested: - Demolition and removal of existing dry-stack limestone retaining walls and sidewalks - Construction of new cast-in-place concrete retaining walls with architectural cast stone veneer and capstone to match historic appearance - Installation of steel and stainless steel pipe railings and guardrails - Rerouting of conduit and undergrounding of existing overhead power lines - Full replacement of exterior lighting fixtures, including Holophane luminaires (part number: WAE3-P30-40K-MVOLT-MS-BK-GL5-SBR-TBK-AO-PR7-FPD75) and Holophane poles (part number: WDA-12-SL4-17S-C03-BK-ABG) - Erosion control, site restoration, and ADA-compliant pedestrian detours - Unique or Notable Requirements: - Strict no-dig zone to protect 51-foot soil anchors supporting an adjacent parking garage - Mandatory landcare review for tree and root protection - Limited staging areas with professional-grade fencing - Coordination with university departments for meter hooding, permitting, and hazardous materials management - Compliance with University of Minnesota Building Standards, prevailing wage requirements, and Minnesota building codes - Six line item pricing alternates requested - Project schedule prohibits site disturbance before a specified date and requires substantial completion before student move-in - OEMs Highlighted: - Holophane (for exterior lighting units and poles) - Design Team: - Led by Bolton and Menk - Estimated project budget: $245,000

Description

The University of Minnesota is soliciting proposals for construction services to replace failing dry-stack limestone retaining walls and associated sidewalks at Comstock and Yudof Halls on the Twin Cities campus. The project involves constructing new cast-in-place concrete retaining walls with cast stone veneer to maintain historic aesthetics, rerouting conduit, undergrounding overhead power lines, and replacing exterior lighting fixtures. Strict project constraints include a no-dig zone to protect soil anchors, mandatory landcare review, limited staging areas, and a construction schedule that prohibits site disturbance before July 6, 2026, with substantial completion required by August 28, 2026. The total construction budget is $245,000.

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