- Contact Us
On August 1, 2007, Minnesota suffered a tragedy of historic proportions when the 41 year old I-35W bridge collapsed. The new I-35W bridge consists of twin 1,223’ structures featuring a 504’ precast concrete segmental main span over the Mississippi River. It was completed as a design/build project with an extremely aggressive schedule.
Bloom was part of the Design-Build verification team for bridges, walls and other miscellaneous structures on the project and provided field inspection and shop drawing review. Review was provided for falsework and formwork for the segment casting, cast in place spans, closure pours, pier extensions, and plaza construction. Review of plans, designs and materials for segment casting building and segment lifting and moving mechanisms, and all access platforms. Review of structures used for construction of main bridge and segments. Provided technical duties required for verification testing and inspection to ensure contractor compliance with the Design Build RFP, Mn/DOT Contract Administration Manual, Specification Book, Special Provisions, construction plans, policies and procedures, standard and FHWA guidelines.
Bloom evaluated value engineering proposals and advised state of conclusions as to whether the proposed changes are structurally equal to the planned construction. Bloom analyzed changes to plans, specifications or contract special provisions to ensure necessity and positive impact on the project. Other structural reviews and inspections included pedestrian tunnel, plaza construction, MSE walls, moment slabs, temporary sheet pile wall, anchored sheet pile wall and soldier pile walls, geometry controls, PT certs, and erection manual and executions.