Some details about bypasses in Neelum Valley
Leswa bypass has historical and wartime importance. It was used during hot conflicts on LoC and is still actively used.
Infact there are 2 bypasses that start from this point. Leswa is relatively more famous.
1- Leswa Bypass
2- Jing - Kutton Bypass
Leswa was operational when i checked during my tour but i am not sure about Jing-Kutton bypass as i couldn't find time to go to Jagraan Valley and Kutton.
There is a 3rd bypass as well which starts from Athmuqam and ends at Dowarian but i will give its details later.
Here is the map of the 2 alternate routes to enter Neelum Valley 

0926 by Sabrite, on Flickr