I don't think it would be the Bridgeton Secondary that you are seeking. The line to the sandholes in Port Elizabeth area runs south out of Millville (on the east side of the Maurice River)
The line ran at one time all the way to Heislerviile via Menatico, Manumuskin, Port Elizabeth, Mauricetown, Dorchester, Leesburg then to Heislerville. At Manumuskin there was a junction where the line headed east to Bellplain, Woodbine, Woodbine Jct (connection with ACRR Cape May Branch) then on the South Seaville, Cedar Grove, Clermont then to Sea Isle City.
From Bridgeton ( on the west side of the Maurice River) the CNJ went to sandholes from Bridgeton Jct. to Shellpile via Fairton, Cedarville, Dividing Creek, Haleyville, Port Norris then Shellpile. The CNJ used to run a quite extensive operation of oyster trains from Shellpile to the New York markets. 80 cars per day loaded with oysters from Shellpile were common in the heyday of the Delaware Bay oyster fishery and at it's peak, Port Norris could claim more millionaaires per square mile than any other town in New Jersey.
There was also a line from Bridgeton at one time that went to Bayside via Bowentown, Sheppard's Mill, Greenwich then on too Bayside. This line branched off around Lanning Street just north of the CNJ Bridgeton Staion at Cohansey and Sharp Streets. The original intent of this line was to setup a car float operation across the Delaware Bay to connect with the B&O, but it never panned out.
Lotta lines, hope this helps some.
Steam professional since 1974
Former Block Operator- PRSL