Yadenitsa dam and 6+ km connecting tunnel to Chaira pumped storage plant upper reservoir – construction tender (60 months)
مناقصة – Bulgaria
Open EUR 350M civil tender for a new dam and 6 km tunnel at the Balkans' largest pumped storage plant – dam builders, tunnelling contractors and concrete/grouting specialists should bid by 4 November.
| Type | Open tender |
|---|---|
| Status | Open – closes 04 Nov 2026 (29 days) |
| Country | Bulgaria · Velingrad / Rila (Chaira PSHPP) |
| Client / owner | National Electricity Company (NEK EAD) |
| Value | EUR 350M |
| Announced | 05 Oct 2026 |
| Deadline | 04 Nov 2026 |
| Project type | Power plants & renewables, Bridges & tunnels |
Trades and packages needed
- Concrete works (in-situ) (main package)
- Tunnelling & microtunnelling (main package)
- Earthworks, excavation & site grading (main package)
- Ground improvement, grouting & shoring (main package)
- Ready-mix concrete, cement & aggregates (main package)
- Rebar cutting, bending & fixing
- Formwork & falsework
- Dewatering
- Equipment & crane rental
- Land surveying & geotechnical investigation
- Materials testing & QA/QC laboratory
What to do
Register with the client and request the tender documents before the deadline.