SITUATION. A -3% grade meets a +5% grade near an underpass. In order to maintain the minimum clearance allowed under the bridge and at the same time introduce a vertical transition curve in the grade line, it is necessary to use a curve that lies 200-m on one side of the vertex of the straight grade and 100-m on the other. The station of the beginning of the curve (200-m side) is 10+000 and its elevation is 228 m. Determine the stationing of the lowest point of the curve. O 10+206 O 10+203 O 10+213

Structural Analysis
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Chapter2: Loads On Structures
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SITUATION. A -3% grade meets a +5% grade near an underpass. In order to maintain the minimum
clearance allowed under the bridge and at the same time introduce a vertical transition curve in the
grade line, it is necessary to use a curve that lies 200-m on one side of the vertex of the straight
grade and 100-m on the other. The station of the beginning of the curve (200-m side) is 10+000 and
its elevation is 228 m.
Determine the stationing of the lowest point of the curve.
10+206
O 10+203
10+213
O 10+209
Determine the elevation at station 10+040.
226.9 m
O 226.7 m
O 226.5
O 227.1
If the uphill edge of the underside of the bridge is at station 10+220 and at elevation 229.206 m, what
is the vertical clearance under the bridge at this point?
O 4.2 m
O 4.3 m
O 4.4 m
4.5 m
OOOO
Transcribed Image Text:SITUATION. A -3% grade meets a +5% grade near an underpass. In order to maintain the minimum clearance allowed under the bridge and at the same time introduce a vertical transition curve in the grade line, it is necessary to use a curve that lies 200-m on one side of the vertex of the straight grade and 100-m on the other. The station of the beginning of the curve (200-m side) is 10+000 and its elevation is 228 m. Determine the stationing of the lowest point of the curve. 10+206 O 10+203 10+213 O 10+209 Determine the elevation at station 10+040. 226.9 m O 226.7 m O 226.5 O 227.1 If the uphill edge of the underside of the bridge is at station 10+220 and at elevation 229.206 m, what is the vertical clearance under the bridge at this point? O 4.2 m O 4.3 m O 4.4 m 4.5 m OOOO
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