3. Interstate
highway designations ending with an even number generally run which directions?
4. Interstate
highway designations ending with an odd number generally run which directions?
5. Which major
U.S. city is the beginning point of the north-south and east-west interstate
grid, therefore is home to interstates with the lowest number designations?
6. Which is
the northern-most east-west interstate?
7. Which is
the longest interstate?
8. The shortest
two-digit interstate route is found in which city?
A. Tampa, Fla.
B. Newark, N.J.
C. Greensboro, N.C.
D. Cleveland, Ohio
9. Which north-south
interstate is the longest?
A. I-75, Miami to Sault Ste. Marie, Mich.
B. I-35, Laredo, Texas to Duluth, Minnesota
C. I-95, Miami, Florida to Houlton, Maine
D. I-1, San Diego, California to Blaine, Washington
10. Which
state has the most interstate routes?
A. California
B. Ohio
C. New York
D. Illinois
11. Which
state has the most interstate miles?
A. Texas
B. California
C. Illinois
D. New York
12. Which
interstate is found in the most states?
13. The interstate
highway system was created formally in 1956 (did you get question 2 correct?).
In what state is the oldest segment of the interstate system? (Note: it
predates the formal founding.)
14. Which
state is home to the highest point on the interstate system?
A. Montana
B. Utah
C. Idaho
D. Colorado
15. Which
state is home to the lowest point on the interstate system?
A. Florida
B. California
C. Georgia
D. Louisiana
16. What is
the maximum speed allowed on an interstate highway?
A. 65 miles per hour
B. 70 mph
C. 75 mph
D. 80 mph
17. Idaho
has how many interstate highways?
18. Initially,
I-84 shared the same number as a southern east-west route. What was its
previous designation?
19. What Idaho
route is both an interstate and intrastate highway?
20. Idaho
contains how many miles of interstate highways?
A. 750
B. 587
C. 612
D. 834
21. What is
the shortest two-digit interstate in Idaho?
22. I-84 is
Idaho’s longest interstate. From the Oregon border to the Utah border
southeast of Sublett. How long is it?
A. 247
B. 276
C. 297
D. 319
23. What is
the highest point on an Idaho interstate?
24. Which
two Idaho interstates generally follow historic routes first used by western
settlers?
25. During
the territorial period in Idaho history, the route now known as I-15 carried
what kind of traffic?
26. Which
Idaho interstate route has the highest traffic volume?
27. The last
traffic light on I-90 was decommissioned and laid to rest during a mock
funeral service in what northern Idaho community?
Extra
mileage
(take an extra 500 miles for each correct answer)
28.
When was Idaho’s first four-lane section of interstate highway completed?
A. 1962-63
B. 1966-67
C. 1958-59
D. 1954-55
29.
Where was the first four-lane section of interstate highway in Idaho?
30.
I-90 in northern Idaho was known by what U.S. highway route before becoming
part of the interstate system?
31.
Most interstate highways have two-digit designations. Interstates with three
digits, beginning with even numbers represent what?
32.
Interstates with three digits that begin with odd numbers represent what?
33. How much money does the Federal Highway Administration collect
from each gallon of gas purchased (federal gas tax)?
Interstate
Quiz: Answers
1. D.
Dwight D. Eisenhower System of Interstate and Defense Highways. The interstate
system was first called The National System of Interstate and Defense Highways
in the founding act of 1956. President Dwight D. Eisenhower’s name
was added on Oct. 15, 1990, during the celebration of the 100th anniversary
of the president’s birth.
2. 1956
(June 29), by declaration from President Dwight D. Eisenhower
3. West
to East
4. South
to North
5. San
Diego, California (I-5 and I-15 head north and south; I-8 runs east-west
6. I-90
7. I-90,
3,020.54 extending from Seattle, Washington to Boston, Massachusetts
8. C.
Greensboro, N.C. (12.27 miles)
9. C.
I-95, Miami, Florida to Houlton, Maine (1,919.74 miles)
10. C.
New York (29)
11. California
(2,455.74)
12. I-95,
16 states (including Washington, D.C.), Florida, Georgia, South Carolina,
North Carolina, Virginia, Washington D.C., Maryland, Delaware, Pennsylvania,
New Jersey, New York, Connecticut, Rhode Island, Massachusetts, New Hampshire
and Maine.
13. New
York. A portion of the Grand Central Parkway in Queens, N.Y., opened in
1936 and later was included as part of Interstate 278.
14. D.
Colorado (Eisenhower Memorial Tunnel, Clear Creek & Summit counties,
11,012 on the eastern side and 11,158 on the western side).
15. B.
California, I-8, El Centro, California (52 feet below sea level)
16. 75
mph
17. Five:
I-15, I-84, I-86, I-90 and I-184
18. I-80N
(N representing north. To avoid confusion with I-80, which begins in San
Francisco, California, and to conform to federal regulations, the route
was renamed I-84 in the 1970s.)
19. I-86,
which begins and ends in Idaho and does not extend into another state
Note: I-184, while considered an interstate highway, is also spur of
I-84 and does not connect with another interstate.
20. C.
612
21. I-86,
62.85 miles, from the intersection of I-84 near Heyburn to the intersection
with I-15 near Chubbuck and Pocatello.
22. B.
276
23. Interstate
15 at Monida Pass near the Idaho-Montana border. Elevation approximately
6,840 feet.
24. I-84
encompasses a significant part of the historic Oregon Trail;
I-90 closely follows the old Mullan Road, linking the Missouri River and
Ft. Walla Walla (Washington).
25. It
was a primary delivery route to Montana mines.
26. I-84
between the Eagle interchange and the WYE interchange, 107,000 average daily
traffic count (includes east- and westbound traffic.)
27. Wallace
28. C.
1958-59
29. The
section of present-day I-86, between Rockland and American Falls. The contract
was let in 1957 and the project was completed in 1959. Construction on a
two-lane section of highway that later was incorporated into the interstate
system began in 1957 and was completed the following year. It was between
Massacre Rocks and the Rockland Junction on present-day I-86.
30. The
highway was part of U.S. 10.
31. Connecting
routes and full or partial circumferential beltways around and within urban
areas. Example: I-205 in Portland is a route around an urban area that connects
I-84 and I-5.
32. Supplemental
radial and spur routes that connect with a main route at one end but do
not rejoin the main interstate. I-184 is an example.
33. 18.4
cents (the last increase of 4.3 cents per gallon was in 1993)
Your
interstate aptitude
| 27-33
correct |
You
qualify as a transcontinental tour guide |
| 20-26 |
Try moonlighting
as an Idaho tour guide |
| 14-19 |
Don’t wander
too far out of your county |
| Less than
13 |
Leave a trail
of bread crumbs to find your way back home |
