Significance: The North Avenue Viaduct is one of Milwaukee's largest spans. Designed by J.C. Pinney, the reinforced concrete bridge employs a complex open spandrel, ribbed arch support system. The structure o More
Significance: The North Avenue Viaduct is one of Milwaukee's largest spans. Designed by J.C. Pinney, the reinforced concrete bridge employs a complex open spandrel, ribbed arch support system. The structure o More
Significance: The North Avenue Viaduct is one of Milwaukee's largest spans. Designed by J.C. Pinney, the reinforced concrete bridge employs a complex open spandrel, ribbed arch support system. The structure o More
Significance: The North Avenue Viaduct is one of Milwaukee's largest spans. Designed by J.C. Pinney, the reinforced concrete bridge employs a complex open spandrel, ribbed arch support system. The structure o More