Mjøndalen bru (Drammensvassdraget): discharge and water level

Mjøndalen bru (Drammensvassdraget): discharge 426 m³/s (136% of mean flow), water level 0.5 m – below mean flood. Measured 23/10/2026, 20:00 CEST.

Now

426 m³/s below mean flood

Water level: 0.496 m (local datum) · Measured: 23/10/2026, 20:00 CEST · uncontrolled

Discharge, recent days (396–426 m³/s)

Mean flow (catchment statistic)312 m³/s
Mean annual flood1,070 m³/s
5-year flood1,430 m³/s
50-year flood2,220 m³/s

NVE flood statistics (culmination values).

Source: Data: NVE (Norges vassdrags- og energidirektorat), HydAPI · Licence: NLOD 2.0 · Updated 23/10/2026, 20:45 CEST. Raw data, mostly not yet quality-controlled by NVE. Not an official flood warning – see varsom.no.

🔔 Notify me E-mail on flood levels or your own threshold – not an official warning

Precipitation, last 7 days

32.7 mm fell at MET station Mjøndalen - Orkidehøgda (1.2 km away).

2026-10-16: 0 mm16.02026-10-17: 0 mm17.02026-10-18: 0 mm18.02026-10-19: 0 mm19.02026-10-20: 0 mm20.02026-10-21: 7.8 mm21.7.82026-10-22: 24.9 mm22.24.9
Data: MET Norway (Frost API, SN26790) · NLOD 2.0 / CC BY 4.0 · daily values, provisional

Water body status (EU Water Framework Directive)

  • AALETJERNBEKKEN - SKALPEBEKKEN - EVJA NO012-3006-R
    Ecological status: moderate (2021) · Chemical: not assessed
    Good status expected: by 2027
  • KROKSTADELVA NEDRE NO012-2313-R
    Ecological status: moderate (2021) · Chemical: good
    Good status expected: by 2027
  • DRAMMENSELVA HELLEFOSS TIL DRAMMEN NO012-2399-R
    Ecological status: bad (2022) · Chemical: failing to achieve good
    Good status expected: after 2027

Official assessment of the water body at this gauge from the 2022 river basin management plans (WFD target: at least “good”). It rates the whole water body, not today’s water quality.

EEA WISE – WFD 2022 (3rd RBMP), © EEA, CC BY 4.0