Assessment of the capacity of the transmission towerTransmission tower-line system subjected to the wind and ice accretion load is carried out in the present study. Analyses are carried out using an implemented finite element model of the tower-line system by using the incremental dynamic analysis (IDA) and the nonlinear static pushover analysis (NSPA). Results of the analysis indicate that the consideration of local buckling could be important to evaluate the capacity of the tower-line system subjected to the combined load. Failure of such a system subjected to the combined load initiates near the bottom of the tower or the cross-arm depending on the amount of ice load. Results indicate that the capacity curve obtained from NSPA agrees well with that obtained by using IDA; the capacity curve is sensitive to the orientation of the shape of the accreted ice to the incoming wind. This observation facilitates the development of the fragility curve.