Hilgenbach

Midsection of Hilgen creek between Steinberg and Düsenberg. (25 March 2010)

Supreme Source in the northern Quellarm that leads water constantly. (July 21, 2011)

Hilgen creek mouth, looking upstream. The Hilgen brook flows into the image from the left in the Aa. Is formed at the confluence of a Kolk. (23 July 2011)

Template: Infobox River / Obsolete

The Hilgen Bach is a 5.5 km long right tributary of the Aa ( Neth ) in a circle Hoexter, North Rhine -Westphalia, Germany. It thus belongs to the Weser river system. The western watershed is also the watershed to the river system of the Rhine. Geographically, its valley is part of the Upper Forest country and is located in the Teutoburg Forest Nature Park / Eggegebirge.

The Hilgen Bach drained mainly to the central and southern part of the valley of Bad Driburg, while the northern part is drained by the Schwallenbach. Through the valley of the brook Hilgen the federal highway 64, crossing it three times, and the railway line Altenbeken - Kreiensen, which runs north parallel in the lower course runs.

• 2.1 rocks
• 2.2 soils
• 2.3 Water

• 3.1 riparian woodlands

• 5.1 Flood risk to the valley of the Aa
• 5.2 Flood Protection

Geography

Course

The Hilgen creek rises on the eastern slope of the Eggegebirge at the foot of the mountain filling in the nature reserve Iburg - Aschenhütte. The headwaters in some cases exhibit significant sintering and thus contribute significantly to the character of the conservation area at.

The creek crosses the southern part of the valley of Bad Driburg, where the B 64 is under flowed once in northern and one in southern direction. In its course north B 64 of Hilgen creek flows through the settlement area of Bad Driburg on the southern edge. South of the B 64 is on the right side equal to the former Uhlen mill, now a private property. In its course south of the B 64 of Hilgen stream then follows the foot of the Sülburg.

The valley of Bad Driburg leaves the Hilgen creek to the southeast between Stone Mountain to the north and the nozzle mountain in the south. In the north follows the Sollenberg, in the south of Kohlberg. At this point, the right side is the former Josef mill, now a tourist restaurant. To the south finally opens the Dohnhauser field. From the north comes the valley of the Aa, in which the Hilgen stream flows from the right.

Source arms

The Hilgen creek rises in three steep dry valleys at the foot of the mountain in filling multiple sources. Only the lower portions of these valleys constantly carrying water below about 325 m above sea level. NN. The southern valley is the widest and most closely resembles the course of the stream in a straight line. The arm from the relatively small average valley is on the map, standing in front of the Tourist Office of Bad Driburg, as Hilgen Bach called. In online available water information systems of the arm from the northern valley is recognized as Hilgen Bach. This is followed by the geo-coordinates of the source of the info box.

Tributaries

Directly above the Uhlen mill opens the strongest right inflow (water code: 452622 ), the similar amount of water leads here as the Hilgen stream itself, the catchment area are numerous small streams in the forests south of the Driburger basin of the Aschenhütte to Schnatbach behind the Sülburg. The historical name Schnatbach or Schneyebeke goes back to the fact that here, the border between the former circles Hoexter and Warburg. Located along the old road from Bad Driburg by Seven Star, this stems from the Kaplan Born, a flowing even in summer Born of good taste, which was formerly important for travelers. Around him entwines the legend of a white figure that haunted at midnight.

Directly above the bridge to Hill water flows from the left, a small stream (water code: 452624 ). This runs up to this point with a few hundred meters distance north parallel to Hilgen Bach, usually in an underground pipe through the bathroom Driburger Southtown. It rises on the top of the road on mountain ringed.

The Katzohlbach (water code: 452 626 ) is the only officially named tributary of the creek Hilgen namely a left. It drains the central part of the valley of Bad Driburg and thereby extends centrally through the basin from northeast to southwest. For the most part he thus runs through the settlement area and passes through the old town. In the upper and lower reaches it flows through meadows. It flows into the Hilgen creek just before it leaves the basin.

In the Katzohlbach flows from the right Boller Vienna Bach or Boll Erwin Bach, who in the official registers the name Bolle wind stream (water code: 4526262 ) bears. This rises at the foot of the harrow between Iburg and Stellberg. It runs through meadows, the West cemetery and reaches the Katzohlbach on the southwestern edge of the historic old town.

At the foot of Iburg arise from multiple streams, dining, partly cased in the course, the city pond, the runoff ( water code: 4526264 ) from the right reaches the Katzohlbach. This valley structure separates the old town from the south town. At City Lake is a former clay pit, which was used from 1928 to 1930 by the brick Heinrich Breker. The City pond is located in a small alder.

Watersheds

The watershed to Schwallenbach, the northern tributary of the creek Hilgen for Aa, runs from the east initially Sollenberg and Steinberg, then across the bathroom Driburger downtown to the mountain pig, and from there up to the crest of the harrow. Here it is removed from the watershed to Beke, which flows over the lip into the Rhine. On Stellberg this watershed passes into, for the most part but already dried up for Ellerbach, which flows through Altenau and Alme in the lip below Dahl in the Karst. Until Füllenberg it reaches the watershed to Rotenbach, one arising with Buke right tributary of the Ellerbaches. On Klusenberg the watershed goes to Ellerbach over in the for Katzbach, the southern tributary of the creek Hilgen to Aa. It runs from the harrow descending, via low- Hahn and Kohlberg.

Geology

Rocks

In the catchment area of ​​Hilgen creek, the rocks of the Mesozoic prevail ( Mesozoic ), especially from the period of the triad, namely sandstone, Muschelkalk and Keuper. In these sequences, the successive layers are also geologically.

The mountains, from which spring the tributaries, are mostly limestone mountains in the southern catchment area at Seven Star also red sandstone mountains. The bottom of the Driburger basin is covered by the clays, shales and marls of the Upper Buntsandstein ( Röt ).

The region of the mouth in the Aa already belongs to Alhausener calibration Milder Keuper- trough. The Keuper is largely covered by unconsolidated rocks of the Ice Age, namely, gravel, sand and loess deposited by the wind through the estuary. The immediate flat valley floors are made of clays and gravels of the Holocene.

Soils

In the most -covered beech forest slopes of the limestone mountains go from steeper to Shallower considered flat ground, but nutrient-rich Rendzinen from stony - clay loam in medium subtle brown soils with a lößlehmreicheren topcoat over. Where it comes to waterlogging, is Pseudogley train.

The valley with its soft shales of the Röt is lined by very clay-rich brown earths. In the stream valleys form groundwater filled Gleye. Clayey silty Luvisols are found in areas where remnants of glacial loess coverage received.

Water

Since the very well drained limestone mountains lie on the less impermeable layers of the Upper Buntsandstein, which also represent the bottom of the Driburger basin, spring from many sources on the edge.

Especially at the output of Driburger basin in the area of ​​peaks Steinberg, Sollenberg, Düsenberg and Kohlberg, there are so-called dislocations or fractures, areas where the rock has largely displaced as a result of folds against each other. Here, more precisely in the valley of the creek between Duesenberg Hilgen and Kohlberg 's head fountain of mineral water bottler Bad Driburger Nature Park resources, the mineral source I is the Josef mill. From the layers of the Lower Muschelkalk a hygienic, nitrate and salt- poor calcium - magnesium - sulfate - bicarbonate water is encouraged. ( The forest valleys between Düsenberg, Kohlberg, Sülburg and Seven Star are completely uninhabited. ). Add layers of the Middle Buntsandstein, which is significantly lower, are actually the carbonated mineral waters, but the increase to that indicated by distortions due up.

Biology

Riparian woodlands

In the totality of the shore woods of Hilgen creek is mainly characterized by alders and willows. As long as the source streams run in beech forest, but found first of all ash trees along the shore. This also accompany the artificial trench in which runs the northern Quellarm. In the other areas of the upper reaches alder are numerically the most numerous, followed by pastures. The ash trees are scarce from here, maple occurs slightly more often.

Below the Uhlen mill, where the valley is flat, the ratio of alders and willows reverses. Increasingly, the silhouette of the stream is marked on striking manner by high silver willow. Especially in the field of Uhlen mill, there are also some poplars and oaks as a companion of the stream.

As shrubs are found mainly lower species of willow, hawthorn besides, blackthorn, hazel, viburnum, wild roses and elderberry.

Tourism

Coming from the settlement area under the road crosses age ditch the B 64 to the northern Quelltal of Hilgen creek. The road south field cord lies in the southern Quelltal over a bridge. Both lead hikers on the trail Sachsenring, which runs here at the foot of Eggegebirge, so that on the one hand a circular walking to a walk there, on the other hand, the connection to the trail system of the harrow is available.

The middle reaches of the river valley between Hilgen Uhlen mill and Joseph mill is accessible by a predominantly paved hiking and biking trail. In the forest can be unmade, but paved paths along the valley. It is accessible through two tunnels under the B 64 from the city on foot over a short distance. A trail parking lot is located on the B 64 at the Josef mill. To the south of the valley close to the mountains covered with beech forest Sülburg, Düsenberg and Kohlberg. There are several circular walks of varying lengths and different height profiles on paved, unpaved forest roads to choose from. Country inns in this area are the Josef mill and an inn in Seven star.

Below the Josef Mill Valley is touristy barely tapped. A Auenwanderweg direction Herste not exist. The route to Herste is to go flat, but runs close to the B 64 North of Josef mill there is only one way crossing the railway line. This asphalt field as a possible trail to Stone Mountain, to the park and the adjacent clinics is but little used, also because of its large detour to cross the railway line.

Flood-related

Flood risk to the valley of the Aa

The Hilgen Bach provides for the valley of the Aa five reasons a special flood hazard dar. First, the settlement area of ​​the city fills a large part of the basin of Bad Driburg, so that the water flows out here very quickly. Second, the slopes of the valley are very steep and thus have a large relief energy. The loamy clay soil of the valley have a high discharge readiness. Fourth, intervened in the natural waters shape. The average grade of the structure Hilgen creek applies 4 out of a maximum of 7 as significantly changed. The Katzohlbach as the most important tributary is channeled almost entirely in the area of the city. Fifth, the Hilgen Bach at the confluence with the Aa a comparably large catchment area ( 17.2 km ² vs. 26.5 km ² ), and thus correspondingly important to the amount of water.

Flood protection

2010 retention soil filter basin of 7600 cubic meters capacity has been created below the mouth of Katzohlbaches. The plant is used for cleaning of so-called decapitated mixed water from the sewers of Bad Driburg when during heavy rains, the capacity of the sewer system is exceeded. The sewer would otherwise overflow directly into the Hilgen Bach. At the same time, it delays the peak flows, thus contributing to flood protection.

A smaller retention basin is located in the upper reaches, where the road crosses the creek Hilgen Hilgen Bach.

Below the mouth of the Katzohlbaches were reported along the Hilgen creek floodplains, which are used, among others, the natural retention of high water and may be built on very limited. These are based on the expansion of a flood event that occurs statistically once in a hundred years.

Especially for the floodplains slowing the flow rate is sought outside of settlement areas by a natural condition. The Hilgen Bach took from 2008 to 2011 at a river restoration program of the circle Höxter part.

Bridges and tunnels

The 1:10,000 topographic map leads to a total of 20 bridges or tunnels, counted with the north or optionally southern Quellarm to the mouth. There are slight deviations from the real condition.

The B 64 is being incorporated in the course three times. The three source arms flow at the first crossing through separate tunnels. There are more of such tunnel of unnamed tributaries.

• Bridges and tunnels the Hilgen Bach back down for

The Hilgen Bach (northern Quellarm ) leave the forest and now flows into a ditch on the right ( south ) along the road " age gap", slightly less steep. About this tube (right overgrown ) the driveway leads to the meadow above the B upstream 64 views. (27 July 2011)

Right after the trench bends to the left under the street " age gap". It only comes in a ditch on the left of the road reappear after it has even the B 64 crosses under, through this tunnel. The topographic map shows this complexity as multiple stream tunnel is look downstream. (27 July 2011)

Below the B 64, the trench now runs good for 100 m along meadows on the left (north) side of the road " age gap". This bridge is the meadow access. Looking upstream. (27 July 2011)

Finally, the Quellarm crosses under the road " age gap" back to the south. He leaves the course of the road, but is now on the edge of the settlement area, where it comes together with the other two arms source. Looking upstream. (27 July 2011)

After the three source arms have united, passes under the creek Hilgen an eponymous street in the development area of the bathroom Driburger Southtown. Looking upstream. (27 July 2011)

This pedestrian and cyclist bridge of steel and wood combines the Hans- Sachs-Straße with south field marks. Here begins the least attractive part of the river course between shopping centers and car parks. View to the north. (27 July 2011)

Tunnel under the penetration Straße. Stooping can go through even an adult. Look downstream. (26 July 2011)

Double tunnel under the road " in cross-fold ". The possibilities of aquatic animals to migrate are limited. However, the creek is still steep enough that it also forms naturally comparable levels at low tide. (27 July 2011)

Tunnel under the B 64 in the Uhlen mill. Approx. 50 m long with only about 1.5 m in diameter. In winter it accumulates here. At high tide, the creek has the opportunity mitzunutzen the road tunnel on the Bishop of water, the left runs next to it. Look downstream. (23 July 2011)

This 15 m long, narrow tube is between B 64 and Uhlen mill. It is in this length might senseless obstruction of Hilgen creek, since over this pass only a meadow is reached. Look downstream. (23 July 2011)

This private wooden bridge leading to the site of the former mill Uhlen. Looking south. (23 July 2011)

Wooden footbridge. This foot and cycle path bypasses today the site of the mill Uhlen, since this is private property. Look downstream. (23 July 2011)

The Road To Hill water coming from the left of the city, is a popular promenade in the Hilgenbachaue. From both sides open directly before the bridge side flows. Look downstream. (23 July 2011)

About this bridge at the mill of Joseph leads from the B 64 is a forest in the direction of Kohlberg and Düsenberg. The new bridge was built in 2010. Before that here was this natural stone bridge. Looking upstream. (23 July 2011)

Tunnel under the B 64 at the Josef mill. The creek bed fastened with grass grids. Looking upstream. (23 July 2011)

Agricultural bridge just before the confluence with the Aa. It combines the fields on both sides of the creek. Looking south. (23 July 2011)