Lowry Avenue Bridge
TUTOR PERINI AFFILIATES
Lunda Construction Company
Contract Amount: $70 Million
Minnesota Department of Transportation
Lunda successfully completed the replacement of the Lowry Ave Bridge in 2012. Construction included a signature basket handle structural steel arch with a 450-foot main span and a concrete post tensioned tie girder and deck. An important transportation corridor in Minneapolis, this four lane, 1,600-foot long bridge accommodates vehicle, pedestrian, bicycle, rail, and river traffic linking busy residential and business areas. The project also includes the bridge approaches including spans over the Canadian Pacific Railway bringing the entire length of the project to 2,300 feet.
This new state of art, basket handle arch over the Mississippi River has a unique substructure geometry required that Lunda spend considerable time engineering formwork, false work, and erection sequences for both the structural steel arch and post tensioned concrete elements. Technical advanced features of this project include an anti-icing system, energy efficient LED lighting and a sustainable storm water system that filters runoff from the bridge before discharging the treated water into the Mississippi River. This underground sand filtered storm water treatment system constructed by Lunda is the largest filtration system of this type in the upper Midwest.
During this preplanning phase of the project, Lunda considered numerous options regarding intelligent design of temporary structures. Collaboration with field construction personnel, the owner, and governing agencies such as the USCG, USACE, and DNR, as well as performing constructability reviews allowed the development of the temporary structures to maintain the interests of all parties while meeting the project requirements. This section of the river also has significant recreational and commercial navigation traffic. Early planning and coordination with local agencies and river fleet transporters was instrumental in eliminating the risk associated with all river stakeholders during critical activities such as the float in and erection of the 1 million pound precast concrete tie girders and erection of the steel arch over the navigation channel.
Top 10 bridge projects in the United States in 2013 - Roads and Bridges Magazine