Technologies are generally described to monitor roadway infrastructure based on aggregated mobile vehicle communication parameters. In some examples, a pair of vehicles with mobile communication devices passing an infrastructure, such as a bridge, may be identified, and the mobile communication devices may exchange a signal during a mobile communication as the vehicles pass the target infrastructure. During the signal exchange, channel characterization data for the target infrastructure may be collected. The channel characterization data may represent propagation conditions of signal waves through the target infrastructure. The channel characterization data may be received at a mobile communication network, where a tomographic model of the target infrastructure may be generated based on extraction and analysis of the channel characterization data. Physical and structural characteristics of the target infrastructure may be determined based on the generated tomographic image of the target infrastructure to facilitate monitoring for degradation and flaws in the target infrastructures.