Germany - architectural, engineering and surveying services

Description

The State Office for the Environment (LfU) of Brandenburg intends to draw up a maintenance framework plan for the I. Order Land waters in the Oderbruch, which is located in the east of Brandenburg and covers an area of about 800 km2 with a total of 160 km of I. Order Land waters maintained by the LfU. The waters listed in Appendix 2 are to be surveyed over the entire, technically maximum possible recording width. It is assumed that a linear echo sounder recording is carried out. The watercourse sections are to be navigated with a maximum of 5 lanes at a standard distance of about 3 m. Detailed recordings of the river bed structure are to be made, the results of which provide information on the thickness of sludge deposits as well as information on local scouring and landings (discharge obstacles). In addition, the respective water level is to be recorded; rod soundings and land or bank connections are not necessary. Additional tachymetric or GPS-supported recordings of linear watercourse structures (watercourse margins, embankment edges, bank lines etc.) outside the recording track or the surveying of transverse structures in the watercourse profile (bridges) are also not required.The work is to be carried out in accordance with the "Technical specifications for surveying work on water bodies, dikes and water management facilities" (TV surveying), status 01/20 (see Appendix 4-1). A total of about 88 km of water bodies is required, the widths of which (free-flowing discharge cross-sections) vary between 3 and 25 metres. Details of the lengths and widths of the relevant watercourse sections are to be taken from Appendix 2. Longitudinal sections along the watercourse axis are to be developed from the measured values, which contain the bed position, the thickness of the (muddy) sediments and the water level. A channel bed model is to be created from the recorded echo sounder tracks and the DGM1.
The Brandenburg State Office for the Environment (LfU) intends to draw up a maintenance framework plan for the I. Ordnung Land waters in the Oderbruch.
The Oderbruch is located in the east of Brandenburg and covers an area of about 800 km2 with a total of 160 km of I. Order Land waters which are maintained by the LfU.
For the planned preparation of the URP, the water body sections listed in Appendix 2 to the description of services are to be surveyed by means of echosounding in the course of the basic evaluation. The aim is to record the structure of the river bed.
The water bodies listed in Appendix 2 are to be surveyed over the entire, technically maximum possible recording width. It is assumed that a linear echo sounder recording is carried out. The watercourse sections are to be navigated with max. 5 lanes at a standard distance of about 3 m.
A detailed recording of the river bed structure is to be carried out, the results of which will provide information on the thickness of sludge deposits as well as information on local scour formation and landings (discharge obstacles). Furthermore, the respective water level is to be recorded.
Rod soundings and land or bank connections are not necessary. Additional tachymetric or GPS-supported recordings of linear watercourse structures (watercourse margins, embankment edges, bank lines, etc.) outside the recording track or the surveying of transverse structures in the watercourse profile (bridges) are also not required.
The work is to be carried out in accordance with the "Technical Specifications for Surveying Work on Water Bodies, Dikes and Water Management Facilities" (TV Survey) Status 01/20 (see Appendix 4-1).
A total of about 88 km of water bodies is required, the widths of which (free-flowing discharge cross sections) vary between 3 and 25 metres. Details of the lengths and widths of the relevant watercourse sections can be found in Appendix 2.
The measured values are to be used to develop longitudinal sections along the watercourse axis, which include the river bed position, the thickness of the (muddy) sediments and the water level.
From the recorded echo sounding tracks and the DGM1 a channel bottom model is to be developed.

Opportunity closing date

11 December 2020

Value of contract

to be confirmed