“Why did the dog cross the road?”/“To get to the barking lot.”

“Why did the chicken cross the road?”/“To get to the other side” is a classic riddle from the 19th century. A dog version is:
     
Q: Why did the dog cross the road?
A: To get to the barking lot.

   
The joke was published in the Los Angeles (CA) Times on April 6, 1999.
 
“How do you stop a dog from barking in the street?”/“Put him in a barking lot!” is another “barking lot” riddle.
   
     
6 April 1999, Los Angeles (CA) Times, “The Kids’ Reading Room; Pint-Sized Punch Lines,” pg. D7, col. 1:
Why did the dog cross the road? To get to the barking lot. (Catherine, 10, Garden Grove, Excelsior School)
 
Google Groups: alt.humor.puns
Kids Puns of the Weak 10-26-04
Stan Kegel
10/26/04
(...)
Why did the dog cross the road?
To get to the barking lot (Doodles: Sack & Macintosh)
   
Google Groups: alt.humor.puns
Kids Puns of the Weak 12-14-04
Stan Kegel
12/14/04
(...)
Why did the dog cross the road?
To get to the barking lot. (Daily Groaner)
 
Google Books
Joke & Riddle Ballyhoo
By Jacqueline Horsfall
New York, NY: Sterling Publishing Company, Inc.
2005
Pg. 75:
Why did the dog cross the road?
To get to the barking lot.
 
Google Books
The Mammoth Book of Really Silly Jokes:
Humour for the whole family

Edited by Geoff Tibballs
London, UK: Constable & Robinson Ltd
2011
Pg. ?:
Why did the dog cross the road?
To get to the barking lot.
 
Google Books
Happy Smile:
Jokes for Kids

By Adam Smith
Lulu Press (Lulu.com)
2017
Pg. ?:
Q: Where do you put barking dogs?
A: In a barking lot.
 
Google Books
Don’t forget to Flush:
A Bathroom Devotional for Kids

By Kevin Alton and Britta Alton
Minneapolis, MN: Sparkhouse Family
2017
Pg. 109:
Q: Why did the dog cross the road?
A: To get to the “barking” lot!