Determine the ground water infiltration rate for a new two-lane pavement with the following characteristics:

Lane width = 12 ft
Shoulder width = 10 ft
Length of contributing transverse cracks (Wc) = 20 ft
Rate of infiltration (Kp) = 0.05 ft3/day/ft2
Spacing of transverse cracks = 30 ft

What will be an ideal response?


Determine the width of granular base.

W = (number of lanes) × (lane width) + (shoulder width) × 2

W = (2 × 12) + (10 × 2)

W = 44 ft

Since this is a new pavement,

Nc = N + 1

Nc = 3

Use Equation 16.24 to determine infiltration rate (assume Ic = 2.4):



qi = (2.4) [(3 / 44) + (20 / (44)(30))] + 0.05

qi = 0.25 ft3 / day / ft2

Therefore, the ground water infiltration rate will be 0.25 ft3/day/ft2 for this new

pavement section.

Trades & Technology

You might also like to view...

The storage container for recovered refrigerant must be approved by ________.

A) OSHA B) MSDS C) EPA D) DOT

Trades & Technology

19.7 - 10.2 =

A) 9.9 B) 9.5 C) 10.9 D) 10.5

Trades & Technology

Two technicians are discussing torque wrenches. Technician A says that a torque wrench is capable of tightening a fastener with more torque than a conventional breaker bar or ratchet. Technician B says that a torque wrench should be calibrated regularly for the most accurate results. Which technician is correct?

A) Technician A B) Technician B C) Both technicians D) Neither technician

Trades & Technology

An isometric drawing is dimensioned by using unidirectional dimensioning.

Answer the following statement true (T) or false (F)

Trades & Technology