To deal with the uncontrollability and inefficiency problem of construction progress, quality, and cost in traditional steel bridge construction projects, this paper discusses smart steel bridge construction enabled by Building Information Modeling (BIM) and Internet of Things (IoT). The framework of smart steel bridge construction is firstly proposed. The research directions and roadmap are further pointed out. The core idea of smart steel bridge construction is to apply data-driven methods and model-based analytics to realize real-time collaborative management and closed-loop control of steel bridge lifecycle activities. It is expected that this paper will position the BIM- and IoT-enabled steel bridge construction mode in the context of industry 4.0.