A -3% grade meets a +5% grade at a vertex (El. 146.24m) directly under an overpass bridge having underside elevation of 155.74m. A 5 meters clearance under the bridge and the center of the curve was observed. The bridge is having a width of 12 meters. 1. Determine the horizontal length of curve in meters 2. Determine the clearance at the right side of the bridge in meters 3. Determine the clearance at the left side of the bridge in meters 4. Determine the elevation of the invert on center when its location from PC is 75m. The pipe has an outside diameter of 0.4 meters and a thickness of 50mm. The backfill is 0.30 meters in depth. |

A -3% grade meets a +5% grade at a vertex (El. 146.24m) directly under an overpass bridge having underside elevation of 155.74m. A 5 meters clearance under the bridge and the center of the curve was observed. The bridge is having a width of 12 meters. 1. Determine the horizontal length of curve in meters 2. Determine the clearance at the right side of the bridge in meters 3. Determine the clearance at the left side of the bridge in meters 4. Determine the elevation of the invert on center when its location from PC is 75m. The pipe has an outside diameter of 0.4 meters and a thickness of 50mm. The backfill is 0.30 meters in depth. |

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter15: Geometric Design Of Highway Facilities

Section: Chapter Questions

Problem 7P

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