An underpass crossing a reinforced concrete bridge has a downward grade of -4% meeting an upward grade of +8% at the vertex with elev. 76 m and stationing 7+766 exactly underneath the centerline of the bridge having a width of 10m. if the minimum required clearance under the bridge is 5m and the elevation at the bottom bridge is 78.16 m, determine the length of parabolic curve that shall connect the two gradelines.

Q: A -3.3% grade meets a +7.4% grade at a vertex (El. 139.57m) directly under an overpass bridge having…

A: Elevation of PI = 139.57m

Q: A -4.5% grade meets a 8.3% grade at a vertex (El. 135.26m) directly under an overpass bridge having…

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Q: A grade of -1.2% joins a grade of 1.8% at station 23+40 which has an elevation of 209.04 ft.…

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Q: A +3 % grade @ PC intersects with a -4.2 % grade at PI forming a symmetrical vertical curve with…

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Q: Problem 1 A - 4% grade meets a +5.5% grade at a vertex whose elevation equals to 132.56 m directly…

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Q: A -4.1% grade meets a 8.7% grade at a vertex (El. 144.78m) directly under an overpass bridge having…

A: Given: The grade (g1) is -4.1%. The grade (g2) is 8.7%. The elevation at PVI is 144.78 m. The bridge…

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Q: (ii) Determine the transition length based on permissible speed for a 2º curve with maximum…

A: Given values, Maximum permissible speed Vmax = 100 km/h Degree of curve D = 2o G= 1.676 m Radius of…

Q: Q4: A road is to be redesigned using a parabolic vertical curve to provide clearance beneath a…

A: Given values: PVC: Easting = 122.8 m, Northing  = 40.2 m, Elevation = 125.536 m, Chainage = 1140.00…

Q: a -4.5% grade meets a 7.4% grade at vertex (El. 143.24m) directly under an overpass bridge having…

A: G1 = -4.5% = -0.045  G2 = 7.4% = 0.074

Q: 500ft vertical curve has PVI elevation 240.31ft. the initial and final grades are 2.1% and -3.3%…

A: solution Given g1=2.1% ;g2=-3.3%so total change N =g1-g2=2.1-3.3=5.4%Length L =500ftelevation of…

Q: 2. There is a Vertical Curve with a length of 300 feet, a gl of -3.2%, a g2 of 1.8%, a PVI at…

A: The grade of back tangent, g1=-3.2%The grade of forward tangent, g2=+1.8%The elevation of PVI…

Q: What is one of the project manager's primary responsibilities throughout the building phase?

A: Introduction: Project managers are accountable for the planning, procurement, and execution of any…

Q: An underpass crossing a reinforced concrete bridge along the Shaw Blvd. has a downward grade of -4%…

A: g1 = -4%g2 = 8%Sta (PVI) = 7 + 700 Elv (PVI) = 70 m

Q: A parabolic vertical curve is to be set out connecting two uniform grades of +1.8 and +3.9%. The…

A: Length=Ar=3.9-1.80.0520m=840mPVCsta=PVIsta-L2PVCsta=2705-8402=2285PVCELV=PVIELV-g1L2PVCelv=238.755-0…

Q: A +3.0 percent grade intersects a - 2.0 percent grade at station 3 + 20 and at an elevation of…

A: The expression to calculate the station of the PVC is given by, Station of PVC=Station of PVI-L2…

Q: An underpass crossing a reinforced concrete bridge along Shaw Blvd has a symmetrical vertical curve,…

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Q: Given two grades intersecting at station 1 + 250m, one grade at +6%, the other at -3%. Use a…

A: Given data, Two grade intersecting at station 1+250m g1=+6% and g2=-3% L=183m L1=121.95m and…

Q: The forward tangent of 6% was designed to intersect a back tangent of -3% at a proposed underpass…

A: Foreword tangent - 6%Back tangent- -3%elevation= 100mstationing- 12+530.200centerline of the bridge-…

Q: The length of curve at side of PC is 55 while on the PT is 45 m. A sewer line with its top having an…

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Q: The length of curve at side of PC is 45 while on the PT is 50 m. A sewer line with its top having an…

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Q: The length of curve at side of PC is 55 while on the PT is 45 m. A sewer line with its top having an…

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Q: The vertical distance from the vertex to parabolic curve is 3 m. The first grade is ascending at the…

A: Length of Parabolic curve can be calculated by ; y = NL8 where ; y = Distance from vertex to…

Q: A-4.3% grade meets a 8.8% grade at a vertex (El. 141.24m) directly under an overpass bridge having…

A: Answer  Let us first draw the curve using the given data  Elevation of the invert on center…

Q: A -3% grade meets a +5% grade at a vertex (El. 146.24m) directly under an overpass bridge having…

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Q: A 591m equal tangent crest vertical curve has PVC at Sta 19+252 and at elevation 124m. The initial…

A: Since this s an equal tangent vertical curve, distance from the center of the curve to the two…

Q: 2. A-9% grade meets a -5% grade at station 2+ 270 of elevation 150 m. The lengths are L1 = 80 m. and…

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Q: A 600ft vertical curve has its PVI at elevation 404.44ft. The initial and final grades are 3.1% and…

A: Determination of Elevation  of point 364ft from PVC

Q: Q3/ A vertical curve below has a lower point (A) which exists at station (55+50) with elevation…

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Q: Q4: A road is to be redesigned using a parabolic vertical curve to provide clearance beneath a…

A: Hi! Thank you for the question As per the honor code, We’ll answer the one question since the exact…

Q: Prob. 3. A forward tangent of +6% was designed to intersect a back tangent of -3% at a proposed…

A: You can determine tangent length by calculating the central angle of the curve, in degrees. An angle…

Q: A +3.2% grade Line meets another Line of -4% grade at station 11 + 40. If a 225-ft parabolie curve…

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Q: mum clearance under the bridge is 5 m and the elevation of the bottom 78.1. Determine the following:…

A: g1 = -4%g2 = 8%Sta (PVI) = 7 + 700 Elv (PVI) = 170 m

Q: The rod reading of Sta. 100 + 270 is 0.26m. with the same H.I., the rod reading at Sta. 100 + 320 is…

A:

Q: The length of curve at side of PC is 42 while on the PT is 58 m. A sewer line with its top having an…

A: Given:- L1 = 42 m L2 = 58 m g1 = +5.5% g2 = -7% PC Sta = 6+782 PC Elev = 110.5 m

Q: The length of curve at side of PC is 45 while on the PT is 5 having an elevation of 108.6 is found…

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Q: A-4.4% grade meets a 7.9% grade at a vertex (El. 136.35m) directly under an overpass bridge having…

A: Given, g1=-4.4 %g2=7.9 % A=12.3 % Tangent Elevation at PVI = 136.35m Bridge Elevation = 156.79 m

Drainage of Pavements

Pavement Drainage holds ample significance, as it prevents the accumulation of water or any liquid on the surface of pavements and ensures proper drainage system. With proper design and gradual slopes provided, the water gets easily removed from the surface into the drains, which are essential during heavy rains and unusual weather conditions keeping it less prone to accidents and increasing the durability of the pavement structure.