The scope of the damage is still being tallied by Yellowstone officials, but based on other national park disasters, it could take years and cost upward of $1 billion to rebuild in an environmentally sensitive landscape - with a huge underground plumbing system - where construction season only runs from the spring thaw until the first snowfall. вЂњItвЂ™s going to be a summer of adjustments.вЂќ вЂњWeвЂ™ve gotten a lot more done than we thought we would a week ago,вЂќ Sholly said. The temporary route also could be used by commercial tour companies that have permits to lead guided visits. That would let employees who work at the park headquarters in Mammoth get to their homes in Gardiner, Sholly said. With no chances for an immediate fix, Sholly said 20,000 tons of material were being hauled in to construct a temporary, alternate route along an old road that runs above the canyon. Trunks of huge trees litter the the surrounding canyon. Muddy water now courses through where the roadbed had been only a week ago. It will take much longer - possibly years - to fully restore two badly-damaged stretches of road that link the park with Gardiner to the north and Cooke City to the northeast.Дuring a tour of damaged areas on Sunday, park officials showed reporters one of six sections of road near Gardiner where the raging floodwaters obliterated most of the roadway. вЂњThat would get 75 to 80% of the park back to working,вЂќ National Park Service Director Charles вЂњChuckвЂќ Sams said Sunday during a visit to Yellowstone to gauge the floodвЂ™s effects. TheyвЂ™d still be barred from the Lamar Valley, which is famous for its prolific wildlife including bears, wolves and bison that can often be seen from the roadside. The northern loop would give visitors access to popular attractions including Tower Fall and Mammoth Hot Springs. Within two weeks officials plan to also open the northern loop, after previously declaring that it would likely stay closed through the summer season. Only portions of the park that can be accessed along its вЂњsouthern loopвЂќ of roads will be opened initially and access to the parkвЂ™s scenic backcountry will be for day hikers only. Wednesday, more than a week after more than 10,000 visitors were forced out of the park when the Yellowstone and other rivers went over their banks after being swelled by melting snow and several inches of rainfall. Yellowstone will partially reopen at 8 a.m. Yellowstone floods wipe out roads, bridges, strand visitors

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