Zarqa River

Coordinates: 32°11′30″N 35°48′06″E / 32.19167°N 35.80167°E / 32.19167; 35.80167
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Zarqa River
'Ain Ghazal
 • locationAmman
 • elevation776 m (2,546 ft)
MouthJordan River
 • elevation
−313 m (−1,027 ft)
Length65 km (40 mi)
Basin size3,900 km2 (1,500 sq mi)
Discharge 
 • locationJordan River
 • minimum2 m3/s (71 cu ft/s)
 • maximum8 m3/s (280 cu ft/s)
Basin features
Tributaries 
 • leftWadi Dhuleil
Zarqa River

The Zarqa River (

Yarmouk River. It is the third largest river in the region by annual discharge and its watershed encompasses the most densely populated areas east of the Jordan River. The Zarqa rises in springs near Amman
, and flows through a deep and broad valley into the Jordan, at an elevation 1,090 metres (3,580 ft) lower.

At its spring lays

'Ain Ghazal (Arabic: عين غزال), a major archaeological site that dates back to the Neolithic
. Archaeological finds along the course of the river indicate the area was rich in flora and fauna in the past.

The river is heavily polluted and its restoration is one of the top priorities for the Jordanian Ministry of the Environment.[2]

Geologically, the Zarqa River is about 30 million years old. It is well known for its amber deposits that date back to the Hauterivian era of the Early Cretaceous, 135 million years ago. A remarkable flora and fauna was reported from this amber reflecting tropical paleoenvironmental conditions prevailing during the time of resin deposition.[3]

Name

The Arabic name, Nahr az-Zarqa' (نهر الزرقاء) means "the blue river", where nahr means river and zarqa' (زرقاء) means blue.[1]

Biblical Jabbok

The Zarqa River is identified with the biblical river Jabbok.[4] Biblical Jacob crossed the Jabbok on his way to Canaan, after leaving Harran. It leads west into the Sukkot Valley, from where one crosses over the Jordan and can easily reach Shechem, as Jacob eventually did. The biblical cities of Zaretan and Adam are also at the mouth of the valley.

The river is first mentioned in the

Gerasa and Philadelphia
.

Geography and hydrography

Course

wadis join the river, and it opens up into a shallow basin.[13] It forms the border between the Jordanian administrative regions of Irbid and Balqa Governorate
.

Water flow, catchment area, use

The river is perennial, but with a very low base flow of about 2 million to 3 million cubic meters per month during the summer months, and as much as 5–million to 8 million cubic meters per month during the rainy winter months. This makes it the second largest tributary of the lower Jordan River, after the Yarmouk River, and the third largest river in the region by annual discharge. Irregular floods after rain storms may increase the flow to as much as 54 million cubic meters. The median annual flow is 63.3 million cubic meters.[14]

The total basin area is 3,900 km2 (1,500 sq mi) the largest in Jordan.[15] A small dam, Al-Rwyha dam, near the village of Dayr Alla, marks the end of the upstream portion of the river, where it is natural and fast-flowing with very clear water. There is very little agriculture along the banks of the river in this region, which are very rocky. Downstream from this dam, the water level is very low, and the river banks are intensively used for agriculture, as well as grazing by sheep and goats[16]

The King Talal Dam was built across the lower Zarqa in 1970, and created a reservoir with a capacity of 55 million cubic meters, and increased in 1987 to 86 million cubic meters.[14] When built, it was expected that the reservoir would supply water for municipal use in the Amman region. However, the current levels of pollution in the lake make the water unfit for human consumption, and it is used for irrigation only.[17]

Bridges

The new Jerash Bridge crosses the Zarqa upstream of King Talal reservoir, on the road from Amman to Jerash. The bridge is the site of a gauging station where flow measurements are continuously taken.

In the city of Zarqa, several bridges, vehicular and pedestrian, cross the river. The earliest of these was built by the Chechen founders of the city. Current bridges include the Zawahreh Bridge, a vehicular bridge connecting Baha' al-Din Street with al-Zuhur Street and another connecting Baha' al-Din Street with King Talal Street. Two pedestrian bridges connect al-Zuhur Street and Baha' al-Din Street, and Wasfi al-Tal Street and Petra Street.[18]

Natural history

The geological origins of the Zarqa river are about 30 million years old, when the Jordan Rift Valley was formed. A ripple effect of its formation was the creation of side-wadis. The Zarqa river carved into the western edge of one of these side wadis.[19] The earliest exposed formations in the area date from the

fossils.[20]

Flora

Archaeological finds of charcoaled remains indicate that

oleander and Typha species.[16]

Since the waters of the Zarqa are highly contaminated, with high levels of organic matter and various chemical compounds (especially detergents and dyes), the use of Zarqa water for irrigation has significantly altered the biodiversity of the natural flora, and caused the disappearance of the majority of fresh water species.[25]

Zarqa River near Mastaba

Fauna

In prehistoric times, the area was rich with fauna, and 45 distinct animal species have been identified, half of them wild animals. Domesticated goats were the most common, and gazelles were the most frequently occurring wild animal species.
Today, the area is still home to a diverse population of birds and mammals, and some of the breeding species found do not breed anywhere else in Jordan.

Persian squirrel (Sciurus anomalus).[17] The otter is considered a threatened species.[16]

History

The Zarqa valley was an important passageway connecting the Eastern Desert with the Jordan Valley.

Prehistory

'Ain Ghazal, the origin of the spring the feeds the Zarqa river, is a major archaeological site, dating back to the Neolithic period. It was continuously occupied for more than two thousand years, and the earliest finds date to 7200 BCE.[27]
'Ain Ghazal is one of the earliest known human settlements with evidence of domesticated animals. With a population of around 3,000 at its height, it was also one of the largest prehistoric population centers in the Near East, with about five time the population of neighboring Jericho.

Iron Age

During a 1982 survey of the Zarqa Valley, a number of Early Iron Age sites were discovered, concentrated along the banks of the Zerqa and its tributaries.[20][28] One of them, Tulul adh-Dhahab, is under further research now. It features two neighboring tells which are commonly identified with the ancient Israelite cities of Mahanaim and Penuel, mentioned in the Hebrew Bible.[29][30][31]

Zarqa River running near Tulul adh-Dhahab

Hellenistic Jerash

Wadi Jarash, a northern tributary of the Zarqa River, flows through the modern city of

Roman periods, when it was known as Gerasa, home to noted mathematician Nicomachus
. The ruins of the city are well preserved and have been extensively excavated.

Modern town of Zarqa

Chechen immigrants.[32] Its population grew rapidly with an influx of Palestinian refugees who fled the West Bank during the Six-Day War
.

Environmental concerns

The Zarqa river is highly

wadis), contaminating it and creating a stench which has been a cause of numerous complaints, particularly during the summer months.[2] Though sewage treatment stations have been built in a couple of locations (including Ain Ghazal and Khirbet As Samra), these stations often receive more water than they can handle.[33][34] Such overflow occurs during winter floods, as well as during summer months when the population increases with the return of migrant workers to Amman. During overflow, untreated water runs directly to the Zarqa river. As a result, the Zarqa's water is brownish colored, often with dense foam due to large amounts of organic matter. Other sources of pollutants are the illegal dumping of industrial waste, including those from textile factories, and batteries and oils from garages.[25]

The river's watershed encompasses the most densely populated areas east of the Jordan River,[14] and it flows through an industrialized area that is home to more than 52% of Jordan's industrial plants, including the Jordan Petroleum Refinery Company. During the summer months, treated domestic and industrial waste-water compose nearly all of the flow, and substantially degrade the water quality. Coupled with over-extraction of water from the underground aquifer and the naturally low base flow of the Zarqa, this has created a major problem, described as one of Jordan's "environmental black spots".[35] and has made rehabilitation of the Zarqa a top priority for the Jordanian Ministry of the Environment. The restoration project is estimated to cost $30 million.[36]

See also

  • Arnon River
  • Yarmouk River

References

  1. ^ a b Placenames of the World, Adrian Room, p. 42, McFarland, 2006
  2. ^ a b "IUCN - Roadmap for Restoration of the Zarqa River Laid Out". IUCN. 2008-03-05. Archived from the original on 2017-08-28. Retrieved 2017-08-28.
  3. ^ Kaddumi, 2005; 2007
  4. ^ The Oxford History of the Biblical World, Michael David Coogan, p. 10, Oxford University Press, 2001
  5. ^ Genesis 32:23
  6. ^ Deuteronomy 3:16
  7. ^ Numbers 21:24
  8. ^ Deuteronomy 2:37, 3:16
  9. ^ Joshua 12:2
  10. ^ Judges 11:13, 11:22
  11. ^ Onomasticon, ed. Ferdinand Larsow and Gustav Parthey, p. 222, 224, Berlin, 1862.
  12. ^ C. C. Held – J. T. Cummings, Middle East Patterns: Places, Peoples and Politics (2014) p.353.
  13. ^ Rollefson, Gary O, Ain Ghazal: An Early Neolithic Community in Highland Jordan, near Amman, Bulletin of the American Schools of Oriental Research, No. 255 (Summer, 1984)
  14. ^ a b c "Surface Water: Zarqa River, Jordanian Ministry of Water and Irrigation". www.exact-me.org. U.S. Geological Survey for the Executive Action Team, Middle East Water Data Banks Project. 1998. p. 35. Archived from the original on 2013-09-26. Retrieved 2009-01-25.
  15. ^ GIS-hydrological models for managing water resources in the Zarqa River basin, N. Al-Abed, F. Abdulla and A. Abu Khyarah, Environmental Geology, Volume 47, Number 3 / February, 2005
  16. ^ a b c Results of an initial field survey for otters (Lutra lutra) in Jordon
  17. ^ a b c Ramsar Sites Information Service Archived 28 July 2011 at the Wayback Machine
  18. ^ "CSBE Architectural News: January 2005". www.csbe.org. Archived from the original on 25 July 2011. Retrieved 2016-02-16.
  19. ^ Zarqa River Eco Development
  20. ^ a b Tribes and Territories In Transition
  21. ^ Gary Rollefson; Zeidan Kafafi. "The Town of 'AinGhazal". menic.utexas.edu. Archived from the original on 2008-06-11. Retrieved 2009-01-25.
  22. ^ Reclamation’s history of the Jordan River Basin in Jordan, a focus on agriculture: past trends, actual farming systems and future prospective. Archived July 16, 2010, at the Wayback Machine
  23. ^ Khammash, Ammar. "Flora of Jordan". www.jordanflora.com. Retrieved 2009-01-25.
  24. ^ The Royal Society for the Conservation of Nature, Jordan Archived January 5, 2009, at the Wayback Machine
  25. ^ a b Water scarcity in relation to food security and sustainable use of biodiversity in Jordan
  26. ^ Observations on the avifauna of the eastern Jordan Valley, during July and August of 2005 Archived July 16, 2011, at the Wayback Machine
  27. ^ Feldman, Keffie. "Architecture, Body and Performance: Ain-Ghazal (Jordan) Pre-pottery Neolithic B Period pit of lime plaster human figures". proteus.brown.edu. Retrieved 2009-01-23.
  28. ^ Robert L. Gordon, Linda E. Villiers: Telul edh Dhahab and its environs surveys of 1980 and 1982: a preliminary report. In: Annual of the Department of Antiquities of Jordan. Vol. 27, 1983, p. 275-289.
  29. OCLC 1101929531.{{cite book}}: CS1 maint: location missing publisher (link
    )
  30. ^ "Pnuel". scholar.google.com. Retrieved 2021-12-12.
  31. ^ Reinhard, Jochen; Rasink, Bernd. "A preliminary report of the Tulul adh-Dhahab (Wadi az-Zarqa) survey and excavation seasons 2005 - 2011": 85. {{cite journal}}: Cite journal requires |journal= (help)
  32. ^ The Chechens, Amjad M. Jaimoukha, p.231, Routledge, 2005
  33. ^ "As-Samra Wastewater Treatment Plant Project on BOT Basis Development and Lessons Learned". Performance Management Unit. Archived from the original on 2017-08-29. Retrieved 2017-08-28.
  34. ^ "Short-term Improvements to the As-Samra Wastewater Stabilization Pond System: Environmental Assessment Report" (PDF). U.S. Agency for International Development. 1993-07-18. p. 13. Archived (PDF) from the original on 2017-08-29. Retrieved 2017-08-28.
  35. ^ Namrouqa, Hana. "Jordan Times". www.jordantimes.com. Retrieved 2009-01-25.
  36. ^ "Jordan: USD30 million estimated cost for Zarqa River Basin Restoration". EMWIS. 2006-08-27. Archived from the original on 2017-02-27. Retrieved 2009-01-25.

Sources

External links
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32°11′30″N 35°48′06″E / 32.19167°N 35.80167°E / 32.19167; 35.80167

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