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River

Arda

290 km from source to mouth · Turkey, Bulgaria and Greece.

TurkeyBulgariaGreeceTurkey, Bulgaria and GreeceFlows into Maritsa

Follow the riverMonth by month

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

In numbers

Length

290km

Average flow

38m³/s

Basin

5,795km²

Drop

877m

from 912 m to 35 m

Countries

3

The journey

From source to mouth

290 km of river and 13 stops on the way: 2 towns and cities on its banks, dams, bridges and the tributaries that feed it.

912 m35 m
Rhodope Mountainsat 912 m0 km
Chernatributary47 km
Dyavolski most71 km
Kardzhali Reservoir12 km²112 km
Kardzhali44,071 people116 km
Studen Kladenets reservoir22 km²153 km
Krumovitsatributary162 km
Ivaylovgrad reservoir12 km²231 km
Aterenska rivertributary260 km
Maritsaat 35 m290 km
0100200290 km
  1. 0 kmRhodope Mountainsat 912 m
  2. 26 kmRudozem3,783 people
  3. 47 kmChernatributary
  4. 71 kmDyavolski most
  5. 112 kmKardzhali Reservoir12 km²
  6. 116 kmKardzhali44,071 people
  7. 134 kmVarbitsatributary
  8. 138 kmPerperektributary
  9. 153 kmStuden Kladenets reservoir22 km²
  10. 162 kmKrumovitsatributary
  11. 231 kmIvaylovgrad reservoir12 km²
  12. 232 kmIvailovgrad Hydroelectric Power Station
  13. 260 kmAterenska rivertributary
  14. 285 kmArda rail bridge
  15. 290 kmMaritsaat 35 m

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

River in Bulgaria and Greece

At the mouth it carries 38 m³/s on average: an Olympic pool every 66 seconds. It drops from 912 m to 35 m, 3.0 m per kilometre on average. Its basin covers 5,795 km², about the size of BN. 242,000 people live in it. Highest water: from December to February; lowest: from July to September. It is heavily dammed: reservoirs can hold 102% of a year's flow.

Read more on Wikipedia

Where to start

  • KardzhaliLargest city on its banks · 44,071 people
  • Plovdiv International Airport (PDV)Nearest airport with scheduled flights, 64 km from the cityCar hire at PDV airport (Plovdiv)Discover Cars · Affiliate link
  • On the water1 ferry piers, marinas, boat rentals and boat ramps along the river (OpenStreetMap)
  • Kayak and canoe3 put-ins and rapids mapped (OpenStreetMap)
  • From May to SeptemberThe best months to visit

Arda, month by month

Highest water: from December to February

Lowest water: from July to September. Best months to visit: from May to September.

76
2°59 mmJan
67
4°51 mmFeb
55
6°52 mmMar
44
11°49 mmApr
37
16°55 mmMay
29
20°51 mmJun
19
23°33 mmJul
9.8
22°25 mmAug
8.9
18°37 mmSep
20
13°49 mmOct
46
8°70 mmNov
68
4°70 mmDec
Water (estimated flow)Air (average) Rain (mm)Best months

From about 8.9 m³/s in the lowest month to 76 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

Arda: the basin in numbers

5,623 km² of land send their water to this river. This is what lives on it.

DammedReservoirs can hold 102% of a year's flow: much of the river is a chain of lakes.
  • 242,000people live in the basin
  • 44/km²people per km²
  • 607maverage altitude of the basin
  • 630mmof rain a year (basin average)
  • 10.6°Caverage air temperature
  • 4%protected areas
  • 0.8%covered by lakes
  • 1.2km³held in reservoirs

What covers the basin

  • 45% Forest
  • 10% Cropland
  • 25% Pasture
  • 2% 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

Arda: what you find on the way

  • 16Dams
  • 16Weirs
  • 2Waterfalls
  • 2Rapids
  • 1Canoe put-ins
  • 1Boat ramps

From OpenStreetMap, within 1.6 km of the river. Not mapped is not the same as not there.

Cross-checked with our atlases

Arda 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.

  • 3lakes on its wayLakeyas
  • 3mountains at the sourcePeakyas

Lakes and reservoirs (3)

Lakes it flows through, by Lakeyas

  1. Kardzhali Reservoirkm 8712km²
  2. Studen Kladenets reservoirkm 11822km²
  3. Ivaylovgrad reservoirkm 17812km²

Lakeyas is coming soonOpen Lakeyas ↗

Mountains at the source (3)

Within 15 km of the source, by Peakyas

  1. Kushlardag3.9 km away1,143m
  2. Potamaki11 km away859m
  3. Stamna0.8 km away

Open Peakyas ↗

From space

The source and the mouth, seen from orbit

Arda: satellite view of the source
The source14 km across
Arda: satellite view of the mouth
The mouth10 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

Arda in pictures

Arda-river-after-dam-studen-kladenetz
Vassia Atanassova - Spiritia · Public domain
Arda river
Kiril Kapustin · CC BY-SA 4.0
Arda Peak
Lyubomir Ivanov · CC BY-SA 3.0
PFC Arda by BISO 2021
Biser Todorov · CC BY 4.0

Tributaries

Where it flows, and what flows into it

Tributaries (8)

Also: Krumovitsa, Varbitsa, Malka Arda, Borovitsa, Perperek, Aterenska river, Elhovska, Cherna

Where these numbers come from

Name, length, placesWikidata (Q500954) · 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 atlasesLakeyas, Peakyas — 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