What?? The Nisqually and White River entrances are both in serious jeopardy??
For example, from Beasom's recent M.S. theis, addressing 410 just inside the park boundary (well before the turn to WR campgroud):
"Herrera (2005) documented the fact that State Route 410 was below the elevation of the river bed, a fact that we confirmed...the river bed in this location is also aggrading at a much higher rate than observed in similar gradient locations in the Park. This is a troubling finding, especially when compared to other rivers in similar situations at the Park (e.g. Tahoma Creek... ... Evidence of flood water flow is plainly visible since the entire forest floor is covered with several inches of overbank river sediment ...killing old growth forest ...trees are hundreds of feet tall, which present a risk to automobile traffic on State Route 410 ... The river has flooded across State Route 410 several times, and recently the Park has built a concrete reinforced, rock armored berm (Figure 6.4). We analyzed this berm on a cool, cloudy day to determine if the water in the side channel would be flowing across the road if the berm were not present (Figure 6.5). We found that at a low flow condition, the water would indeed be flowing across the road. The berm is at a location that is approximately 15 ft (4.6 m) below the bed elevation of the White River. It is unlikely that the berm would stop a large flood of the White River."
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