The Free and Hanseatic City of Hamburg plans to adapt the shipping channel of the Elbe to the requirements of container shipping. In the course of the project "fairway adaptation of lower and outer Elbe" the Elbe is not only deepened, but it is built between the Mühlenberger hole and the Lühekurve a meeting route for the large-scale shipping. For this reason, the directional blaze line Blankenese - consisting of upper fire and lower fire - moves for incoming ships by 125 m to the south. All associated nautical facilities must be adapted and rebuilt.

The planned new construction of the Blankenese directional fire line is part of the application documents for the fairway adaptation. Implementation is based on the corresponding planning approval decision.

The present call contains monitoring services for the new construction of the Blankenese directional fire line, consisting of a top and a side fire. The location of the upper fire is on land, the lower fire is in the water. The construction tender is divided into 3 lots:

Lot 1: foundation of underfire - reinforced concrete

Lot 2: Foundation upper fire with Sohlplatte - reinforced concrete

Lot 3: Steel construction upper fire and lower fire with elevator system.

The call contains the following monitoring services:

The construction supervision (BOL), local construction supervision (ÖBÜ) as well as the object supervision (OÜ) for:

- engineering structures on land and in the tidal water area,

- Bridge structure according to ZTV-Ing,

- Steel construction,

- Dredging work.