To enable prediction of the response of corrugated metal arch-compacted soil bridge systems to soil loading above crown level, graphs were developed from a large number of finite element analyses. The graphs are based on analysis of a flexible arch, in the form of a half ellipse, supported on either side by typical footings. The material surrounding the arch is homogenous in terms of elastic modulus and Poisson's ratio. Although the graphs are based on linear analysis important nonlinear effects may be taken into account by application of the graphs in a stepwise manner. Comparison of predicted response with that from a specific finite element analysis of a field problem suggests that the idealizations associated with the graphical approach may be of little concern for may projects. In addition, comparisons of predictions with field measurements show encouraging results.(Author/TRRL)