This is a nice image! This is definitely a Dolomedes spp., however, I would suggest that it is not a D. tenebrosus, because the D. tenebrosus has a 3 conspicuous black W-shaped marks, each of which ends in a light brown mark (1).



However, it is good match for the Whitebanded Fishing Spider (D. albineus), which shares a similar pattern as your spider (the wide mid-section abdominal band, tapering down the abodmen with smaller bands.) A good indication is the fact it was in a wooded area, and D. albineus is more of boreal spider (although it was within walking distance of water). It's never that simple, is it? :)



Maybe one of our experts can confirm the exact species, but I would suggest that it is not a D. tenebrosus. :)