The unique circumstances of the Williston location wasn't the only underpass that was discussed in the article.
The state's proposal includes an underpass designed for bighorn sheep south of the Long X Bridge. Another underpass is proposed farther south near the Summit Campground that would be geared for mule deer but also accommodate other animals, Kreft said. In addition, the corridor under the Long X Bridge serves as another wildlife crossing.
The wildlife crossing system, which includes fencing and jump-outs, or one-way escape routes to prevent animals from getting stuck, is estimated to cost $7 million, according to a draft environmental impact statement.
The North Dakota Wildlife Federation is pushing for additional wildlife crossings, including at least two overpasses for bighorn sheep and pronghorn antelope, said Mike McEnroe, past president and lobbyist for the organization.
Agencies studied the possibility of a bighorn sheep overpass north of the Long X Bridge in the North Unit of Theodore Roosevelt National Park.
Matt Linneman, project manager with the Department of Transportation, said that was eliminated as a viable option because the agencies wanted to minimize the impact to the national park.
McEnroe said he's concerned the bighorn sheep won't use the underpasses.
Bighorn sheep, particularly ewes, would prefer to use an overpass, Kreft said.
"However there's been other studies in other states that a large underpass, if put in the correct location, will be effective to allow the movement of ewes," he said.
The Wildlife Federation also is advocating for wildlife crossings in the Grassy Butte and Fairfield areas to accommodate pronghorn antelope, McEnroe said. Currently, there are no wildlife crossings planned in those areas.
But I'll play along and pretend that places like Grassy Butte and Fairfield weren't mentioned too.