Objective: Reconstruct the most heavily traveled interchange in Minnesota while maintaining optimal traffic flow and minimal congestion over the course of two years.
Challenges: Many, including overcoming a State Government shutdown in mid-summer 2011 during the height of construction season as well as orchestrating coordination with all major utility owners to completely relocate all facilities in the corridor to a joint trench option.
Structures: 9 new bridges, 3 bridge widenings, 30 retaining walls and 55,000 sf of wood noise wall.
Scope: 4.5 million lbs. of new structural steel for bridges, 4.2 million lbs. of rebar, 45,000 cubic yards of structural concrete and 37,000 cubic yards of pavement concrete.
Result: The 494/169 Design-Build was completed on time and on budget.
Awards:
- AASHTO National "Under-Budget" Winner $25 - 200 Million Category
- MnDOT Safety Award
- MnDOT Bridge Award