Try this link to old USGS topo maps.
https://ngmdb.usgs.gov/topoview/viewer/ ... 5/-74.2052
If it works you will be looking at a Lakewood map. Click on it in the somewhere near Route 88 (Main St). A menu should open up on the right. Scroll up/down and click on "Lakewood 1947", then a little drop-down menu should show up, and then click on "Show". THen you should see the 1947 topo. Good luck.
In the 1947 map there is a Public Service (PSE&G forerunner) ROW coming off the Southern, starting at Lakewood station, then running east on the north side of the Metedeconk River, on the south side of what is now Rte 88 (Route 35 in the 1947 map).
Here is a Google Maps street view from Aspen Ct, about 500 ft south of 88, about 1-1/2 miles east of the Southern, from what seems to be the location of the ROW in the 1947 map.
https://goo.gl/maps/F5mikEfERd8kKXzB8
It still looks like an active PSE&G ROW with high voltage lines (although when I traced them on Google Maps they didn't go all the way to the Southern, and just seemed to end at what's now Waverly Court about 1/2 of the way back to the Southern. And it is most a park now, so hard to imagine anyone reactivating anything in an area w/ no obvious customers.
Now that I look closer, what more likely could be of interest is the short section of the ROW north of Main St (route 88) going to the Southern connection. I think there was a siding there to serve a lumber operation that closed some time back (someone here will remember the name), and the siding was ripped out. I recall posts not too long ago. Although this is in Lakewood, not Brick Township.
Well, I might be way off, but we can all speculate based on the 1947 map.
JS