Invasive crayfish pose a significant threat to native crayfish, making the identification of effective management strategies a priority. One option is to use existing structures that fragment streams (e.g., culverts and weirs) to exclude invasive crayfish from habitats occupied by native crayfish. We assessed whether existing structural barriers are containing the upstream spread of the invasive virile crayfish (Faxonius virilis), which is displacing the native pilose crayfish (Pacifastacus gambelii) in the upper Bear River watershed (Wyoming, Idaho, and Utah). In the summer of 2025, we sampled 82 sites and surveyed 18 prospective crayfish barriers throughout the watershed, aiming to identify F. virilis leading edges and establish its distribution. We assessed the passability of prospective barriers by the presence or absence of F. virilis upstream and downstream of the prospective barriers. Structure attributes (water velocity, drop height, and bank conditions) were measured to identify traits of successful barriers responsible for containing F. virilis spread. No structures were found to be successful barriers, likely due to attributes that allowed crayfish to climb structures and the absence of sufficient drop heights. Given that structural barriers do not appear to be limiting F. virilis spread in this watershed, barrier removal or modification for connectivity management of native fishes in the watershed is not in conflict with P. gambelii conservation. Alternate mechanisms driving the distribution of F. virilis in the watershed are discussed, as are future directions for conserving P. gambelii, a rare crayfish species, and assessing the stability of its populations in the upper Bear River watershed.