In the nineteenth century, many mills used the water power of the Elbbach. They included grain mills, an ironworks in Berzhahn and also an oil mill in Niederhadamar. In the twentieth century, the economic importance of this river greatly diminished. However, many micro hydro plants are now running on the Elbbach, especially around Hadamar. Some of them are at the sites of the old mills. There are many bridges across this river, some of them extremely old. These include the Saint Wendilin Bridge in Niederhadamar, built in the 12th century, which is one of Germany’s medieval bridges and may be the oldest in the state of Hesse.
Etymology
The first part of the name “Elbbach” has an etymology like that of the Elbe, a major river in Central Europe whose name derived from the Latin Albis meaning “river”. And, the German word for “stream” is “bach”, a common suffix for German rivers.
Route
The Elbbach arises in the Rhineland-Palatinate part of the Westerwald, a few miles northwest of Westerburg, from the convergence of several streams north of Ailertchen. From there, it flows south to Kaden, east past Guckheim, through Willmenrod and then to Langendernbach in Hesse. Continuing south, the Elbbach reaches Elbtal and then Hadamar. Then this river flows further south at Staffel, which is a district of Limburg an der Lahn. On average, this river supplies about four cubic meters per second into the Lahn.
Nature preserves
In the latter part of its route, through the state of Hesse, the Elbbach flows through the nature reserve "Elbbachtal". This protected area follows the course of the river over approximately from the state border to the city of Hadamar. The boundary of the reserve is usually close to the river, which means that the reserve covers only despite its long distance. The official short description and justification of this protected area is: "Near-natural watercourses with brook-riparian riparian forests, high-altitude meadows, wet meadows, freshwater meadows, reedbeds and floodplains. Vegetation valuable from both botanical and faunistic point of view, habitat of numerous rare and endangered species of flora and fauna, of particular importance for running waters, locally significant bird breeding area." Further along this river’s course is the nature reserve "Kalksteinbruch bei Hadamar" comprising, and the area "Elbbachaue east of Elz" comprising. The latter area consists of two sub-areas of wet meadow, which is particularly important because of the occurrence of the dark and the light-colored butterfly called the Scarce large blue.