This research tested thirteen Context Sensitive Solutions (CSS) principles, as outlined in Stamatiadis et al (2009). Principles were tested with two New Hampshire corridor planning processes: Route 16 and I-93/CTAP. Through content analysis, web surveys and interviews, a determination was made regarding whether the two projects utilized the principles, and to what extent in the data sources. Both projects demonstrated evidence in at least two data sources for eleven of thirteen principles. However, participants had very different perceptions of how these principles were implemented. This study provides groundwork for the development of a checklist that can be used in corridor planning processes, to ensure these processes are collaborative and incorporate the needs and values of stakeholders and the broader public.