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River

Drammenselva

48 km from source to mouth · Norway.

NorwayNorwayFlows into Drammensfjord10th longest in Norway

Follow the riverMonth by month

SourceMouth
The river and every tributary in its basin, drawn from RiverATLAS (CC BY 4.0).

In numbers

Length

48km

Average flow

310m³/s

Basin

17,000km²

Drop

45m

from 45 m to 0 m

Country

1

The journey

From source to mouth

48 km of river and 23 stops on the way: 3 towns and cities on its banks, dams, bridges and the tributaries that feed it.

50 m0 m
Tyrifjordenat 45 m0 km
Tyrifjorden136 km²5 km
Bergsjøen2.2 km²10 km
Gravfoss11 km
Døvikfossen17 km
Kolbrekkvannet0.6 km²24 km
Hellefossen27 km
Hagatjern0.7 km²35 km
Nedre Eiker Bridge35 km
Ypsilon45 km
Drammensfjordat 0 m48 km
01020304048 km
  1. 0 kmTyrifjordenat 45 m
  2. 5 kmVikersund3,232 people
  3. 5 kmTyrifjorden136 km²
  4. 10 kmBergsjøen2.2 km²
  5. 10 kmKatfoss
  6. 11 kmGravfoss
  7. 16 kmKongsfoss
  8. 17 kmDøvikfossen
  9. 24 kmKolbrekkvannet0.6 km²
  10. 27 kmHellefossen
  11. 28 kmHokksund bridge
  12. 35 kmHagatjern0.7 km²
  13. 35 kmNedre Eiker Bridge
  14. 43 kmLandfalløybrua
  15. 44 kmØvre Sund Bridge
  16. 45 kmYpsilon
  17. 45 kmDrammen106,013 people
  18. 45 kmDrammen City Bridge
  19. 46 kmHolmen bridge
  20. 46 kmStrømsøløpet railway bridge
  21. 46 kmStrømsø bridge
  22. 46 kmDrammen Bridge
  23. 47 kmBragernesløpet railway bridge
  24. 47 kmSkoger1,206 people
  25. 48 kmDrammensfjordat 0 m

Water level along the river (RiverATLAS; the height is exaggerated). Towns: GeoNames and Wikidata; bridges, dams and tributaries: Wikidata.

River in Norway

At the mouth it carries 314 m³/s on average: an Olympic pool every 8.0 seconds. It drops from 45 m to 0 m, 0.9 m per kilometre on average. Its basin covers 17,000 km², about the size of SZ. 189,000 people live in it. Highest water: from April to June; lowest: from January to March. Dams and reservoirs hold back a large share of its water (12% of a year's flow).

Read more on Wikipedia

Where to start

  • DrammenLargest city on its banks · 106,013 people
  • Sandefjord Airport, Torp (TRF)Nearest airport with scheduled flights, 62 km from the cityCar hire at OSL airport (Oslo)Discover Cars · Affiliate link
  • On the water25 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • From June to AugustThe best months to visit

Drammenselva, month by month

Highest water: from April to June

Lowest water: from January to March. Freezing months (average below −4 °C): from January to February. Best months to visit: from June to August.

270
-5°49 mmJan
120
-4°35 mmFeb
120
0°43 mmMar
770
4°39 mmApr
730
10°51 mmMay
710
14°63 mmJun
360
16°77 mmJul
440
15°90 mmAug
500
11°79 mmSep
570
6°80 mmOct
620
0°73 mmNov
440
-3°51 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 120 m³/s in the lowest month to 770 m³/s in the highest. An estimate: the monthly flow is modelled from the lowest and highest months of WaterGAP (RiverATLAS, 1971–2000) and the rain and snow along the river (WorldClim). Dams change the real rhythm. The chip is the average air temperature; below it, the month's rain.

Plan the trip

Plan the trip: boat trips, a bed by the river, a car

Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.

The basin

Drammenselva: the basin in numbers

17,189 km² of land send their water to this river. This is what lives on it.

Heavily regulatedReservoirs can hold 12% of a year's flow: dams shape its seasons.
  • 189,000people live in the basin
  • 11/km²people per km²
  • 755maverage altitude of the basin
  • 789mmof rain a year (basin average)
  • 1.1°Caverage air temperature
  • 11%protected areas
  • 6.1%covered by lakes
  • 1%permafrost
  • 1.2km³held in reservoirs

What covers the basin

  • 68% Forest
  • 3% Cropland
  • 1% Towns and cities

RiverATLAS (HydroATLAS v1.0, CC BY 4.0): land cover, people, protected areas, glaciers and dams over the whole basin upstream of the mouth.

Along the river

Drammenselva: what you find on the way

  • 37DamsDam Tyrifjorden, Døvikfossen, Dammen and 34 more
  • 7WeirsKongsfoss and 6 more
  • 7WaterfallsKatfoss, Gravfoss, Kongsfoss and 4 more
  • 15Boat ramps
  • 1Ferry piersSvend Haugs Gate
  • 9MarinasMuusøya Båthavn, Union brygge, Holmen Motorbåtforening and 6 more
  • 4River beachesTyrifjord hotell, Grua, Bragernes strand and 1 more

From OpenStreetMap, within 1.9 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Drammenselva in our other atlases

What our sister atlases know about the waterfalls on this river, the lakes it flows through, the beaches at its mouth, the mountains where it rises and the islands off its mouth.

  • 5waterfalls on the riverCascadyas
  • 4lakes on its wayLakeyas
  • 7beaches at the mouth and on the banksCoastya
  • 216mountains at the sourcePeakyas
  • 30islands off the mouthIslandyas

Waterfalls (5)

On the river, by Cascadyas

  1. Katfosskm 12
  2. Gravfosskm 13
  3. Kongsfosskm 18
  4. Døvikfossenkm 19
  5. Hellefossenkm 31

Cascadyas is coming soonOpen Cascadyas ↗

Lakes and reservoirs (4)

Lakes it flows through, by Lakeyas

  1. Tyrifjordenkm 6 · 295 m deep136km²
  2. Bergsjøenkm 112.2km²
  3. Kolbrekkvannetkm 280.6km²
  4. Hagatjernkm 400.7km²

Lakeyas is coming soonOpen Lakeyas ↗

Beaches (7)

At the mouth (25 km) and on the banks, by Coastya

  1. Raustrand25 km away18.4°C
  2. Hunsvikbukta18 km away · cove18.4°C
  3. Orevikbukta20 km away · cove18.4°C
  4. Kroksbukta22 km away · cove18.4°C
  5. Bogebukta22 km away · cove18.4°C
  6. Holmsbukta20 km away · cove18.4°C
  7. Selvikbukta19 km away · cove18.4°C

Open Coastya ↗

Mountains at the source (216)

Within 15 km of the source, by Peakyas

  1. Brennåsen7.0 km away · prominence 586 m704m
  2. Hesteskotjernåsen5.9 km away669m
  3. Sandtjernåsen6.2 km away652m
  4. Hammersås8.6 km away650m
  5. Bomleåsen8.3 km away638m
  6. Vestre Gulbrandstjernås4.5 km away633m
  7. Indre Gulbrandstjernås5.1 km away627m
  8. Høgbrenna12 km away571m

208 more on PeakyasOpen Peakyas ↗

Islands off the mouth (30)

Within 30 km of the mouth, by Islandyas

  1. Nesøya22 km away
  2. Danmark24 km away
  3. Bjerkøya24 km away
  4. Håøya19 km away
  5. Langøya28 km away
  6. Brønnøya22 km away1.4km²
  7. Ostøya24 km away2.4km²
  8. Kalvøya24 km away

22 more on IslandyasIslandyas is coming soonOpen Islandyas ↗

From space

The source and the mouth, seen from orbit

Drammenselva: satellite view of the source
The source14 km across
Drammenselva: satellite view of the mouth
The mouth18 km across

Sentinel-2 cloudless 2016 by EOX IT Services GmbH (contains modified Copernicus Sentinel data 2016), CC BY 4.0. The glowing line is the river as drawn by RiverATLAS.

Photos

Drammenselva in pictures

Drammenselva vestover fra Øvre Sund
Stian Martinsen · CC BY-SA 4.0
Bjørk i Drammenselva
Peulle · CC BY-SA 4.0
Drammenselva
Stian Martinsen, ( w:Flickr user Vortistic ) · CC BY 2.0
Drammenselva fra Landfalløya 3
Peulle · CC BY-SA 4.0

Tributaries

Where it flows, and what flows into it

Tributaries (3)

Also: Simoa, Snarumselva, Hoenselva

Where these numbers come from

Name, length, placesWikidata (Q537889) · CC0
Course, profile, basinRiverATLAS v1.0 (HydroATLAS, Linke et al. 2019) · CC BY 4.0 — followed from the source to the mouth given by Wikidata
FlowWaterGAP (RiverATLAS), 1971–2000 · CC BY 4.0
Climate along the riverWorldClim (RiverATLAS), 1970–2000 · CC BY 4.0
Towns, bridges, damsWikidata · CC0; GeoNames · CC BY 4.0
Along the river© OpenStreetMap contributors · ODbL
ImagesEOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons
Our other atlasesCascadyas, Lakeyas, Coastya, Peakyas, Islandyas — Wikidata · CC0; © OpenStreetMap contributors · ODbL; GeoNames · CC BY 4.0; HydroLAKES · CC BY 4.0; NOAA OISST

Every source and licence is on the data sources page.

The family

Do you prefer beaches, lakes, mountains, waterfalls, islands, rivers or canyons?

Same idea, other landscapes: field atlases built on open data, month by month, in seven languages.

beachesCoastyaFind your beach: sea temperature, sun and swimming month by month.Visit
lakesLakeyasEvery lake on Earth: water temperature, ice, depth and the shore.Coming soonVisit
mountainsPeakyasEvery summit in 3D: summit weather, the 0 °C line, huts and trails.Visit
waterfallsCascadyasEvery waterfall: height, flow month by month and when it roars.Coming soonVisit
islandsIslandyasEvery island from the sea up: size, sea temperature, ferries and 3D.Coming soonVisit
riversRiveryasEvery river from source to sea: the journey, the flow and the basin in numbers.You are here
canyonsCanyonyasEvery canyon cut to scale: depth to the floor, rim and floor temperatures, trails and viewpoints.Coming soonVisit