K54 Buchholz DB Bridge – Ecological Construction Supervision

Summary

The tender covers ecological construction supervision for replacing the existing DB railway bridge on road K54 near Buchholz. The work includes checking bridges and trees for bats and birds, sealing bat cavities, supplying and installing 12 nest boxes, carrying out approximately six nest-box inspections through April 2030, providing ecological supervision during excavation near tree roots for 10 days, supervising tree protection through 14 site visits, and carrying out a final success inspection in 2031. Preparation for the bat winter-roost inspection must begin no later than 5 working days after award. The first tree inspection is planned for October 2026, tree felling for February 2027 or January 2028, construction for summer 2027 to summer 2028, and the success inspection for 2031. The tender must be submitted electronically in German by 13 October 2026 at 09:30. Price is the only award criterion and variant tenders are not permitted.