Ulfa (river)

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Ulfa
Data
Water code DE : 24814
location Vogelsbergkreis , Hessen , Germany
River system Rhine
Drain over Nidda  → Main  → Rhine  → North Sea
source In the Lower Vogelsberg , south of Schotten - Einartshausen
50 ° 29 ′ 35 ″  N , 9 ° 4 ′ 42 ″  E
Source height approx.  327  m above sea level NN
muzzle at Nidda -Uunter-Schmitten in the Nidda coordinates: 50 ° 26 '20 "  N , 9 ° 1' 23"  E 50 ° 26 '20 "  N , 9 ° 1' 23"  E
Mouth height approx.  136  m above sea level NN
Height difference approx. 191 m
Bottom slope approx. 17 ‰
length approx. 11.5 km
Catchment area 25.77 km²
Discharge at the Ulfa A Eo gauge : 19.69 km²
MQ
Mq
 		232.5 l / s
11.8 l / (s km²)

The Ulfa is a good 11.5 km long right and northwest tributary of the Nidda in the Vogelsbergkreis ( Hesse ).

Surname

Various possible interpretations are being considered for the name 'Ulfa':

  1. germ. * awal, * awil 'a river meadow surrounded on three sides by water'
  2. idg. trunk * avl- 'hollow, hollow, tube',
  3. the stem * ul- 'moist, musty'
  4. Ablautstufe ôl from germ.alan 'grow, swell'.

geography

course

The source of the Ulfa is on the Schotterberg south of Schotten - Einartshausen and north of Schotten-Rainrod. It initially flows in a slight curve in a westerly direction through a wooded area. In this area the Ulfatal has the typical V-shape of a Kerbtal . The Ulfa flows through the Burkhards Bauwald and flows north past Nidda -Stornfels. Here it changes its course to the south, which from now on remains its main direction. The forest gives way to a meadow and arable landscape . It flows in an arc to the west past the Höllenwald . It is fed by the Greinbach south of the Stockwiesenkopf . It now reaches the urban area of ​​Nidda-Ulfa. South of the village, the Kalte Grund joins the Ulfa from the left. The Ulfa now flows through the Ulfa flood retention basin, which was built in 1965 and can hold back a maximum of 994,000 m³ of water. Below the outlet structure, it flows east past the Haubenmühle settlement . South of Weißmühle it is reinforced on the right by the Diebach . The Ulfa finally flows into the Nidda on the northern edge of Nidda-Unter-Schmitten. From the mouth of the Ulfa to the root of the flood retention basin Ulfa, the water board NIDDA is responsible for the maintenance of the water as well as for the maintenance and operation of the flood retention basin.

Tributaries

The longest tributary of the Ulfa is the Cold Bottom .

The tributaries of the Ulfa include (viewed downstream, kilometers from mouth to source):

Surname GKZ Length
(km)		 Mouth
height
(m above sea  level )
Direction of flow		 Junction at km (coordinates) Mouth
Greinbach 2481432 1.9 166 Left 5.1 ( 50 ° 28 ′ 25.9 ″  N , 9 ° 1 ′ 34.9 ″  E ) Nidda - Ulfa
Cold reason 2481440 3.6 157 Left 2.7 ( 50 ° 27 ′ 21.4 ″  N , 9 ° 0 ′ 53.5 ″  E ) Nidda-Ulfa
The stream 2481492 1.5 149 right 0.8 ( 50 ° 26 ′ 29.7 ″  N , 9 ° 0 ′ 53.9 ″  E ) Nidda-Unter-Schmitten

Nidda river system

Data

nature and environment

Water quality

Almost the entire course of the Ulfa can be classified as moderately biologically contaminated. Only a small stretch of the upper course and north of the village of Ulfa are considered to be lightly polluted.

Yellow wagtail

fauna

The Ulfa Valley is a biologically interesting area. Larger areas with poor grassland alternate with forest areas and open arable land. Typical breeding birds such as partridge , quail , skylark and yellow wagtail can be found here .

Individual evidence

  1. ↑ Topographic map 1: 25,000 and Google Earth
  2. ↑ a b Retention cadastre river area Ulfa
  3. ↑ a b Water map service of the Hessian Ministry for the Environment, Climate Protection, Agriculture and Consumer Protection ( information )
  4. ↑ Settlement names in Hessen Distribution and development up to 1200  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice. by Klaus Peter Andriessen@1@ 2Template: Toter Link / www.andriessen.de  
  5. ↑ Cadastre of existing retention areas State of Hesse: River Ulfa  ( page no longer available , search in web archives )  Info: The link was automatically marked as defective. Please check the link according to the instructions and then remove this notice.@1@ 2Template: Dead Link / www.hlug.de  
  6. ↑ ( Page no longer available , search in web archives: Type 5: Coarse material rich silicate low mountain range ) (PDF; 141 kB)@1@ 2Template: Toter Link / www.umweltbundesamt.de
  7. ↑ Water quality report of the Hessian State Office for Environment and Geology ( Memento from July 20, 2006 in the Internet Archive )
  8. ↑ see the environmental report of the land use plan of the city of Nidda "Environmental report July 2007:"

Web links