The Florida Dept. of Transportation last month approved the construction start of the $2.3-billion I-4 Ultimate project in Orlando, moving forward on its largest-ever public-private partnership and a surge of construction activity. During 2015 alone, the Skanska-led construction joint venture—known as SGL Constructors—will implement an estimated $500 million worth of engineering and construction work throughout the 21-mile-long project, says the contractor.

该项目的范围包括重新配置15个主要交叉路口，替换140多个桥梁，并在每个方向上添加两个Tolled Express车道，持续21英里。FDOT预计将在2021年完成。

During the coming year, SGL—comprising Skanska USA Civil Southeast, Granite Construction and Lane Construction—will work concurrently on four segments, including a 5.3-mile section in the "attractions" area; a 4.9-mile section from Ivanhoe Road to Kennedy Boulevard; and a 6.2-mile-long section in Altamonte Springs. But SGL project director Brook Brookshire says the most challenging section will be the 4.1-mile-long downtown stretch, where crews will replace 74 bridges and revamp the I-4/state Road 408 interchange.

FDOT与特许经营者I-4移动合作伙伴的P3协议以设计，构建，融资，维护和运营该项目已有40年来指控该实体。完成后，特许权将赚取可用付款，这将起价约7500万美元。