The planned bypass Wunstorf in the course of the B 441 bypasses the local situation Wunstorf in the north and east and crosses here on the approx. 6.545 km long construction line the railway line 1740 Wunstorf - Bremerhaven.

The B 441 will traverse the railway line 1740 lying on a dam by means of a trough structure, the railway line itself is to be guided over the trough by means of a bridge structure. In addition, there is a farm road, which is to be transferred parallel to the railway line Wunstorf-Bremerhaven via the B 441.

An approx. 280 m long trough construction, in which the gradient of the OU up to approx. 3.30 m below existing terrain is lowered.

The design of the building and the construction process for the transfer of the DB line 1740 must be coordinated with DB Netz AG. This concerns z. B. the formation of the superstructure and the founding of the overpass. The aim is to minimize the interference with the DB operation.

Auxiliary bridge constructions are required for the construction of the trough structure under DB operation.

BW WU 4 - trough structure:

- Services Project Planning Engineering Structures: Lph. 1-3,6,7 z. T. partially gem. § 43 HOAI,

- Services Structural Design: Lph. 1-3,6 z. T. partially gem. § 51 HOAI,

- Services Technical Equipment (Equipment Group 1): Lph. 1-3,5-7 gem. § 55 HOAI.

BW WU 3 - Overpass DB Line 1740:

- Services Project Planning Engineering Structures: Lph. 1-4,6,7 z. T. partially gem. § 43 HOAI,

- Services Structural Design: Lph. 1-3,6 acc. § 51 HOAI.

BW WU 2 - overpass Hauptwirtschaftsweg

- Services Project Planning Engineering Structures: Lph. 1-3,6,7 partly partly acc. § 43 HOAI,

- Services Structural Design: Lph. 1-3,6 partially partially gem. § 51 HOAI.