Letsibogo Dam, situatednear Francistown, Botswana is a 28m high Rock-Fill Clay-Core (RFCC) dam with a 1200m crest length and a natural spillway of 290m. Letsibogo Dam forms part of the North-South Carrier Water Project (NSCWP), linked to Gaborone with a 400km pipeline.

The dam capacity is 1 million m³ and covers a surface area of 18km².

Letsibogo Dam Instrumentation consists of the following:

• Vibrating Wire Embankment Piezometers in the Clay Core measuring pore pressure.
• Vibrating Wire Foundation Piezometers measuring foundation pore pressure.
• Standpipe Piezometers for measuring water table.

Instruments installed in and around the Dam Embankment are intended to monitor:

• Pore pressure build-up in the embankment and foundation;
• Water Table.

Installed Instruments Specification:

Piezometers (Clay Core/Foundation)

• Geokon Vibrating Wire Model 4500S

Stand Pipe Piezometer (Left and Right flank)

• Geotechnical Instrumentation Casagrande Standpipes

Designers: N/A

Consulting Engineers: Steward Scott Incorporated (SSI)

Contractors: Odebrecht Construction