The second and much longer section starts from Sungei Tengah Road all the way to the SAFTI Live Firing Area and SAFTI City Urban Training Facility at Jalan Sungei Poyan, in the vicinity of National Shooting Centre.

It is named Old Choa Chu Kang Road (Chinese: 旧蔡厝港路).

[2] Home Team Academy is also located along Old Choa Chu Kang Road.

[2] The eastern end of Old Choa Chu Kang Road (near the interchange with Kranji Expressway) leads to the Sungei Tengah Argotechnology Park, one of the few farming areas in Singapore.

Choa Chu Kang Avenue 1, along the Comfort Garden private estate, the now-demolished Keat Hong Camp I & II (and it was redeveloped into Choa Chu Kang Neighbourhood 8) as well as the nearby seafood restaurant, was part of the section of Choa Chu Kang Road.