Due to traffic congestion, structural deficiencies, and safety concerns with the 80-year old Stillwater Lift Bridge, the new St. Croix River Crossing will connect Minnesota and Wisconsin safely. The 4-lane crossing will connect expressways between the cities of Oak Park Heights, MN and St. Joseph, WI. In addition to the bridge, demolition plans for an Xcel barge unloader facility were developed. To reduce environmental impact, the new bridge and all associated roadways must be constructed with the minimum amount of grading possible.

Rani provided complete bridge drainage design for the mile-long bridge.

Professional services included:

• Designing the bridge deck drainage scupper and piping system
• Designing a drainage outfall structure from the WI bluff to the St. Croix River
• Providing drainage plans, specifications and cost estimate
• Preparing SWPPP documents
• Permitting assistance for federal, state, and local permits
• Developing demolition plan for the Xcel Energy Barge Unloader Facility
• Designing drainage outfall structure from the WI bluff to the St. Croix River