CEE 320 Instructor:
Winter Quarter 2006 Steve Muench
Homework 2: Geometric Design & Pavement Design
Textbook Assignment
Number Points Answer
3.2 10 (high pt., sta. = 340+58, el. = 1318.15 ft; PVC, sta = 337+50,
el. = 1312 ft; PVT sta = 342+50, el. = 1315.75 ft)
3.7 10 8.9 ft
3.8 10 The curve is adequate for the conditions. The criteria one could
use are K = 206.5 (greater than required K = 151) or minimum L
= 583.2 ft (less than actual L = 800)
3.25 10 PC sta = 2694+90, PT sta = 2704+68, safe speed = 59.26 mph
3.27 10 e = 0.413, D = 5.73, L = 523.6 ft, STAPC = 1122+42.05, STAPT =
1127+65.65
3.31 20 You figure this one out
Additional Required Work (30 points)
Using the 1993 AASHTO equation and common assumptions, how many ESALs should
the Interstate 5 rigid pavement under the 45th St. overpass in the southbound direction
support? How many has it supported already?
Note: you must determine it’s structure and other information from
http://wspms.ce.washington.edu/. This will require you to spend a bit of time figuring out
how this application works. There are multiple ways to answer this question.
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