The Maumee River Bridge is currently under construction in Toledo, Ohio. The project includes a 1525 ft long, six lane, precast concrete, cable stayed main span unit across the Maumee River with nearly 7300 ft of precast, prestressed concrete box girder approach spans plus numerous precast, prestressed concrete box girder on-ramps that are cumulatively over 9300 ft in length.

The approach spans and on-ramps are being constructed using span-by-span segmental techniques. Large gantry cranes are being used for this purpose.

Piers are generally supported on large diameter cast-in-drilled hole piles. Massive “T” bents on a portion of the approach spans, complex gore areas at the location where ramps connect to the approaches and a precast concrete pylon for the main span complicate the construction engineering, along with construction staging requirements and the use of heavy gantries.

NRV, in conjunction with Laurie and Associates and International Bridge Technologies is providing construction engineering. The work includes preparation of shop drawings for the precast elements, evaluation and design for construction loads on the completed structure, correction of construction errors and prestressing requirements for construction including development of superstructure cambers.