Every driver shall observe and comply with the directions provided by official traffic control signals at the following intersections:
(Code of Iowa, Sec. 321.256)
1. Intersection of Avenue C and Highway 39;
2. Intersection of Avenue C and North 7th Street;
3. Intersection of 1st Avenue North and North Main Street;
4. Intersection of Broadway and North Main Street;
5. Intersection of Broadway and 15th Street;
6. Intersection of 1st Avenue South and South Main Street;
7. Intersection of 4th Avenue South and South 11th Street;
8. Intersection of 4th Avenue South and South 12th Street;
9. Intersection of 4th Avenue South and South Main Street;
10. Intersection of 4th Avenue South and South 16th Street;
11. Intersection of 4th Avenue South and South 20th Street.
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