This seems now to be called 
"Luise-Holle-Weg"
Sources:

https://www.bremerhaven.de/sixcms/media.php/196/Amtliche+Bekanntmachung_Warringsgel%C3%A4nde_Internet.pdf

https://weboffice21.bremerhaven.de/WebOffice_Stadtplan/synserver?project=Stadtplan&client=flex&client_app_referer=bremerhaven_de