List of crossings of the Danube

This is a list of crossings of the Danube river, from its mouth in the Black Sea to its source in Germany. Next to each bridge listed is information regarding the year in which it was constructed and for what use it was constructed (foot bridge, bicycle bridge, road bridge or railway bridge), and the distance from the mouth of the river in kilometres where available.

Crossing	Distance from mouth (in km)	Carries	Location	Built	Coordinates	Photograph
Galați Tunnel		DN22E	Galați, I.C. Brătianu	(Proposed)[1]	45°25′12″N 28°2′50″E
Brăila Bridge	165.8	European route E87	Brăila, Smârdan	2018[a]	45°18′52″N 28°0′12″E
Giurgeni – Vadu Oii Bridge	238[3]	DN2A road	Giurgeni, Hârșova	22 Dec 1970	44°45′15″N 27°52′36″E
Anghel Saligny Bridge	300	Căile Ferate Române Line 800	Cernavodă[4], Fetești[5]	1895	44°20′26″N 28°1′1″E
Cernavodă Bridge	300.07	A2 motorway, Căile Ferate Române Line 800	Cernavodă	1987[3]	44°20′24″N 28°0′58″E

Crossing	Distance from mouth (in km)	Carries	Location	Built	Coordinates	Photograph
Silistra-Călărași Hydrotechnical Complex	380		Silistra, Călărași	(Planned)[6]
Danube Bridge	488.7	European route E85, railway line	Ruse, Giurgiu	20 Jun 1954	43°53′15″N 26°0′26″E
Nikopol-Turnu Magurele Hydrotechnical Complex	578		Nikopol, Turnu Măgurele	(Proposed)[7]	43°42′48″N 24°49′31″E
Constantine's Bridge		Roman road	Sucidava	328[b]	43°45′49″N 24°27′25″E
Oryahovo–Bechet Bridge			Oryahovo, Bechet	(Planned)
New Europe Bridge	796[3]	European route E79, railway line[c]	Calafat, Vidin	14 Jun 2013	44°0′18″N 22°56′51″E

Crossing	Distance from mouth (in kilometres)	Carries	Location	Built	Coordinates	Photograph
Ostrovul Mare Bridge	863	Road	Mehedinți County	1998	44°19′13″N 22°34′29″E
Iron Gate II Hydroelectric Power Station	864[3]	DN56A	Gogoșu, Negotin Municipality	1985	44°18′16″N 22°33′54″E
Trajan's Bridge		Road	Drobeta-Turnu Severin	Built in 105 AD; destroyed.	44°37′26″N 22°40′1″E
Iron Gate I Hydroelectric Power Station	942[3]	State road 35, European route E771, DN6A	Iron Gate	7 Sep 1964	44°40′15″N 22°31′45″E

Crossing	Distance from mouth (in kilometres)	Carries	Location	Built	Coordinates	Photograph
Kovin Bridge	1112.1	Expressway 14	Kovin, Smederevo	26 Nov 1976[8]	44°41′47″N 20°57′10″E
Pančevo Bridge		European route E70	Belgrade	7 Nov 1946	44°49′41″N 20°29′31″E
Pupin Bridge			Belgrade	2014	44°52′3″N 20°22′54″E
Beška Bridge (northbound)	1232	A1 motorway, European route E75	Inđija	2011	45°10′11″N 20°4′48″E
Beška Bridge (southbound)	1232	A1 motorway, European route E75	Inđija	1975	45°10′11″N 20°4′47″E
Žeželj Bridge	1254.1	road, Railway	Novi Sad	2018	45°15′44″N 19°51′37″E
Boško Perošević Bridge	1254.2		Novi Sad	2000	45°15′41″N 19°51′35″E
Varadin Bridge	1255	IIA-100 highway	Novi Sad	2000	45°15′17″N 19°51′27″E
Liberty Bridge	1257.6	Liberation Boulevard	Novi Sad	1981	45°14′2″N 19°50′58″E

Crossing	Distance from mouth (in kilometres)	Carries	Location	Built	Coordinates	Photograph
Ilok–Bačka Palanka Bridge	1297	D2 road, IIA-108 highway	Ilok, Bačka Palanka	1974	45°13′58″N 19°24′6″E
Erdut–Bogojevo Railway Bridge		Railway bridge	Erdut, Bogojevo	1911	45°31′29″N 19°5′15″E
Erdut–Bogojevo Road Bridge		D213 road, Expressway 17	Erdut, Bogojevo	1980	45°31′32″N 19°5′7″E
Batina Bridge	1424.8	D212 road, State Road 16	Batina, Bezdan	1974	45°50′39″N 18°51′28″E

Crossing	Distance from mouth (in kilometres)	Carries	Location	Opened	Coordinates	Photo
István Türr Bridge	1480.22	Hungarian road 55, Bátaszék–Baja–Kiskunhalas railway line	Baja, Pörböly	1999	46°11′35″N 18°55′37″E
Szent László bridge	1498.8	M9 motorway	Szekszárd, Dusnok	2003	46°21′8″N 18°53′42″E
Pál Tomori Bridge					46°32′12″N 18°53′41″E
József Beszédes Bridge	1560.55	Hungarian road 54	Solt, Dunaföldvár	2001	46°48′38″N 18°55′59″E
Pentele Bridge	1571.7	M8 motorway	Dunaújváros, Dunavecse	2007	46°54′11″N 18°57′27″E
Deák Ferenc Bridge	1632.8	M0 motorway	Szigetszentmiklós, Budapest	2012	47°23′24″N 19°0′50″E
Connective Railway Bridge	1643	Budapest–Hegyeshalom railway line	Budapest	1953	47°28′6″N 19°4′2″E
Rákóczi Bridge	1643	Hungary boulevard	Budapest	1995	47°28′7″N 19°4′3″E
Petőfi Bridge	1644.3	Grand Boulevard	Budapest	1952	47°28′44″N 19°3′48″E
Liberty Bridge	1645.3	Small Boulevard, Béla Bartók Avenue	Budapest	2009	47°29′8″N 19°3′18″E
Elisabeth Bridge	1646	Rákóczi Avenue, Hegyalja Avenue	Budapest	1964[9]	47°29′27″N 19°2′57″E
Széchenyi Chain Bridge	1647	Adam Clark Square, Széchenyi István Square	Budapest	1840	47°29′56″N 19°2′37″E
Kossuth Bridge		Batthyány Square, Kossuth Square	Budapest	18 Jan 1946	47°30′23″N 19°2′42″E
Margaret Bridge	1648.75	Grand Boulevard	Budapest	2011	47°30′53″N 19°2′37″E
Árpád Bridge	1651.3	Hungary boulevard, Vörösvári út, Szentendrei út	Budapest	7 Nov 1950	47°32′15″N 19°3′15″E
Újpest railway bridge	1654.5	Budapest–Esztergom railway	Budapest	1896	47°33′47″N 19°4′3″E
Megyeri Bridge	1660	M0 motorway	Budapest, Dunakeszi	30 Sep 2008	47°36′25″N 19°5′31″E

Crossing	Distance from mouth (in kilometres)	Carries	Location	Built	Coordinates	Photo
Mária Valéria Bridge	1718.5	Route I/63, Route 11326	Esztergom, Štúrovo	2001	47°47′43″N 18°43′49″E
Elisabeth Bridge	1767.8	Hungarian road 13, route I/64	Komárno, Komárom	1946	47°45′6″N 18°7′15″E
Komárom rail bridge	1770.4	Komárom–Nové Zámky railway line	Komárom, Komárno	1955	47°45′23″N 18°5′12″E
Monostor Bridge	1770.57	Hungarian road 13, route I/64	Komárom, Komárno	2020	47°45′23″N 18°5′5″E
Vámosszabadi bridge	1806	Hungarian road 14, route I/13	Medveďov, Vámosszabadi	1973	47°47′38″N 17°39′7″E

Crossing	Distance from mouth (in km)	Carries	Location	Built	Coordinates	Photo
Čunovo Dam			Čunovo		48°1′49″N 17°13′35″E
Lužný most		D4 motorway	Bratislava	2021	48°4′58″N 17°9′6″E
Prístavný most	1866.4	Bratislava–Hegyeshalom railway line, D1 motorway	Bratislava	1985	48°8′9″N 17°8′30″E
Apollo Bridge			Bratislava	4 Sep 2005	48°8′15″N 17°7′41″E
Starý most	1868.14	tram tracks, with pedestrian and bicycle sidewalks	Old Town of Bratislava	1946[d]	48°8′18″N 17°7′2″E
Most SNP	1869.1	road bridge, bicycles, pedestrians	Bratislava[10]	26 Aug 1972	48°8′18″N 17°6′16″E
Lanfranconi Bridge	1871.35	D2 motorway[e]	Bratislava	1991	48°8′34″N 17°4′32″E

Crossing	Distance from mouth (in km)	Carries	Location	Built	Coordinates	Photo
Andreas Maurer bridge	1886.2	Bernstein Straße	Hainburg an der Donau, Engelhartstetten	Dec 1972	48°8′44″N 16°54′30″E
Barbara bridge	1914.4	Gas pipe	Schwechat, Vienna	1957	48°8′27″N 16°33′10″E
Mannswörth pipeline bridge	1917.7	Gas pipe[f][g]	Schwechat, Vienna	1959	48°9′28″N 16°30′58″E
Weir 2[h]	1918.3	Footpath	Vienna	1988	48°9′48″N 16°30′44″E
Waluliso Bridge[i]		Footpath[j]	Vienna	1998	48°10′33″N 16°29′28″E
Freudenauer Hafenbrücke	1921.1	Covered pedestrian/bicycle path with viewing platform	Vienna	1992	48°10′18″N 16°28′46″E
Steinsporn Bridge		Footpath	Vienna	1974	48°11′36″N 16°27′51″E
Stadlau Eastern Railway Bridge	1925	Laaer Ostbahn	Vienna[11]	1931	48°12′6″N 16°26′39″E
Prater Bridge	1925.8	Vienna Southeast Bypass motorway A23	Vienna	1967[k]	48°12′26″N 16°26′11″E
Danube city bridge	1926	Line U2	Vienna	Mar 1997	48°12′34″N 16°26′11″E
Weir 1[l]	1926.2	Footpath	Vienna	1978	48°12′42″N 16°26′13″E
Kaisermühlen Bridge		Footpath	Vienna	1993	48°13′21″N 16°25′12″E
Reichsbrücke	1928.9	Angerner Straße, U1	Vienna	8 Nov 1980[12]	48°13′42″N 16°24′36″E
Ponte Cagrana[m]		pedestrian/bicycle access[n]	Vienna	2000	48°13′50″N 16°24′34″E
Brigittenauer Bridge	1930.4	Klosterneuburger Straße	Vienna	25 Oct 1982	48°14′16″N 16°23′40″E
Georg Danzer Bridge	1931.2	Line U6	Vienna	1991	48°14′38″N 16°23′23″E
Northern Railway Bridge	1931.2	North railway line	Vienna	1870	48°14′39″N 16°23′22″E
Floridsdorfer Brücke	1931.7	Floridsdorfer Straße	Vienna[13]	1924[o]	48°14′51″N 16°23′7″E
Steinitzsteg Footbridge	1932.5	Footpath	Vienna	1995	48°15′18″N 16°22′51″E
North Bridge	1932.6	North Bridge Feeder	Vienna	19 Dec 1964	48°15′18″N 16°22′48″E
Jedleseer Bridge		Footpath	Vienna	1983	48°16′6″N 16°22′23″E
Langenzersdorf intake structure	1938.1	pedestrian/bicycle crossing between Langenzersdorf and the Danube Island	Klosterneuburg, Langenzersdorf	1975	48°17′54″N 16°20′52″E
Greifenstein power station	1949.2	Footpath	Sankt Andrä-Wördern, Spillern	1981	48°21′15″N 16°14′30″E
Donaubrücke Tulln	1963.2	Railway line, Tullner Straße	Tulln an der Donau	1875	48°20′7″N 16°3′32″E
Rose Bridge	1965.4	Tullner Straße	Tulln an der Donau, Langenrohr	1992	48°20′4″N 16°1′39″E
Altenwörth power station	1980.4	Footpath	Altenwörth	1973	48°22′35″N 15°51′27″E
Traismauer Danube motorway bridge	1991.4	S33 expressway	Krems, Gedersdorf, Grafenwörth	31 Oct 2010	48°23′6″N 15°43′18″E[14]
Krems Danube bridge	1999.8	Kremser Straße	Furth bei Göttweig[14], Krems[14]	1971	48°24′12″N 15°37′30″E
Krems railway bridge	2001.5	Bahnstrecke Krems an der Donau - Herzogenburg	Mautern an der Donau, Krems	1889[p]	48°24′9″N 15°36′5″E
Mauterner Donaubrücke	2003.6	Aggsteiner Straße	Krems[15], Mautern an der Donau	18 May 1895	48°23′51″N 15°34′30″E
Melk Danube Bridge	2034.5	Melker Straße	Emmersdorf an der Donau[14], Melk[14]	1972	48°14′32″N 15°20′44″E
Melk power station dam	2038	Footpath	Melk[14], Emmersdorf an der Donau[14], Zelking-Matzleinsdorf[14], Leiben[14]	1979	48°13′28″N 15°18′14″E
Pöchlarn Danube bridge	2043.6	Pöchlarner Straße	Pöchlarn	2002	48°12′56″N 15°13′49″E
Persenbeug Dam	2060.4	Erlauftal Straße	Ybbs an der Donau, Hofamt Priel	1959	48°11′25″N 15°4′13″E
Leopold Helbich Bridge	2080.8	Greiner Straße	Grein	1965	48°12′40″N 14°51′24″E
Wallsee-Mitterkirchen power station	2094.5	road (L1427)	Mitterkirchen im Machland, Wallsee-Sindelburg	1965	48°10′0″N 14°41′42″E
Mauthausen railway bridge	2111.1	Donauuferbahn, Summerauer Bahn	Mauthausen, Sankt Pantaleon-Erla	1872	48°14′16″N 14°31′52″E
Mauthausen Danube bridge	2111.1	Mauthausener Straße	Mauthausen, Sankt Pantaleon-Erla	1962	48°14′16″N 14°31′52″E
Abwinden-Asten power station	2119.6	Footpath, bike path	Luftenberg an der Donau	1973	48°14′55″N 14°25′52″E
Steyregg Railway Bridge	2127.6	Summerauer Bahn	Steyregg, Linz	1873	48°17′12″N 14°20′37″E
Steyregger Bridge	2127.7	Donau Straße	Steyregg, Linz	12 Sep 1979	48°17′13″N 14°20′36″E
VÖEST Bridge	2133.5	Mühlkreis Autobahn	Linz	1968	48°19′10″N 14°17′56″E
Eisenbahnbrücke, Linz	2133.9	railway, road (129), pedestrians - to be closed in 2012[16]	Linz	1900	48°19′1″N 14°17′45″E
Nibelungen Bridge	2135.1	Eferdinger Straße	Linz	1938	48°18′27″N 14°17′5″E
Ottensheim-Wilhering power station	2146.7	Footpath, bike path	Ottensheim	1970	48°19′1″N 14°9′2″E
Aschach Danube Bridge	2160	Aschacher Straße	Aschach an der Donau, Feldkirchen an der Donau	1962[17]	48°21′45″N 14°1′33″E
Niederranna Danube bridge	2194	Niederranna-Wesenufer road (L587)	Hofkirchen im Mühlkreis, Waldkirchen am Wesen	1980	48°27′57″N 13°47′43″E

Crossing	Distance from mouth (in km)	Carries	Location	Built	Coordinates	Photo
Jochenstein power station	2203.31	Footpath[q]	Untergriesbach, Engelhartszell an der Donau[18]	1956, 1952	48°31′6″N 13°42′27″E
Kräutlstein Bridge	2223.29	Passau–Hauzenberg railway	Passau	1903	48°34′49″N 13°30′4″E
Luitpold Bridge	2225.75		Passau	1910	48°34′32″N 13°28′18″E
Schanzl Bridge	2226.98		Passau	1968	48°34′35″N 13°27′20″E
Franz Josef Strauß Bridge	2230.1	Bundesstraße 12	Passau	1989	48°34′35″N 13°24′53″E
Steinbach railway bridge	2230.28	Passau Hbf–Freyung railway	Passau		48°34′38″N 13°24′45″E
Kachlet power station weir	2230.43	Footpath	Passau		48°34′41″N 13°24′22″E
Schalding motorway bridge	2234.26	Bundesautobahn 3	Passau	1973	48°35′53″N 13°22′14″E
Marienbrücke	2249.16		Vilshofen		48°38′11″N 13°11′12″E
Danube Forest Bridge	2266.23		Winzer		48°43′27″N 13°3′28″E
Deggenau Danube bridge	2282.5	Bundesautobahn 3	Deggendorf	1975	48°48′33″N 12°58′13″E
Maximilian Bridge	2284.6	Staatsstraße 2074	Deggendorf	1999	48°49′29″N 12°57′35″E
Fischerdorf motorway bridge	2285.5	Bundesautobahn 92	Deggendorf	1991	48°49′41″N 12°56′54″E
Donausteg Deggendorf	2285.87	Footpath	Deggendorf	11 Oct 2014	48°49′45″N 12°56′37″E
Deggendorf railway bridge	2285.87	Bavarian Forest Railway	Deggendorf	1877	48°49′46″N 12°56′37″E
Metten motorway bridge	2290.12	Bundesautobahn 3	Metten	1981	48°50′37″N 12°53′36″E
Xaver Hafner Bridge	2308.4		Bogen	19 Sep 1986	48°53′27″N 12°42′46″E
Bogen railway bridge	2311.28	Straubing–Miltach railway	Aiterhofen	1895	48°54′14″N 12°40′46″E
Reibersdorf road bridge	2316.98	Bundesstraße 20	Straubing	1 Jul 1977	48°53′52″N 12°36′56″E
Schloßbrücke	2321.33	Chamer Straße, Bavarian State Route 2141	Straubing	1949	48°53′10″N 12°34′26″E
Agnes Bernauer Bridge	2320	Bavarian State Route 2141	Straubing	Nov 1981	48°53′51″N 12°34′51″E
Kagerser Bridge	2321.82	Straubing west bypass	Straubing	7 Aug 1992	48°53′53″N 12°33′23″E
Donaubrücke Pfatter	2353.33	Bavarian State Route 2146	Wörth an der Donau		48°58′33″N 12°21′25″E
Wörth Danube Bridge	2358.27	Bundesautobahn 3	Wörth an der Donau	1979	48°59′52″N 12°20′36″E
Donaustauf road bridge	2369.65	Bavarian State Route 2145	Donaustauf	1985	49°1′31″N 12°12′40″E
Schwabelweis road bridge	2376.32	Bundesstraße 8, Bundesstraße 15	Regensburg	1981	49°1′22″N 12°8′27″E
Schwabelweis railway bridge	2376.82	Regensburg–Weiden railway	Schwabelweis	1933	49°1′22″N 12°8′3″E
Nibelungen Bridge	2378.39	Bundesstraße 15	Regensburg	2004[r]	49°1′17″N 12°6′47″E
Gries foot and bicycle bridge[s]	2379.27	Footpath	Regensburg		49°1′24″N 12°6′25″E
Iron Bridge	2379.26		Regensburg[13]	1991	49°1′16″N 12°6′7″E
Protzenweiher Bridge[t]	2379.56		Regensburg	2011	49°1′35″N 12°5′56″E
Stone Bridge	2379.62		Regensburg[13]	1146	49°1′18″N 12°5′50″E
Eiserner Steg	2380.07	Footpath	Regensburg	1948	49°1′20″N 12°5′28″E
Pfaffenstein footbridge[u]	2380.12	Footpath	Regensburg		49°1′29″N 12°5′24″E
Upper Palatinate Bridge[v]	2380.17		Regensburg		49°1′37″N 12°5′26″E
Regensburg hydroelectric power station	2381	Footbridge	Regensburg		49°1′41″N 12°4′39″E
Pfaffenstein motorway bridge	2381.11	Bundesautobahn 93	Regensburg	1967	49°1′43″N 12°4′35″E
Mariaort railway bridge	2385.68	Nuremberg–Regensburg railway	Mariaort	1872	49°0′49″N 12°1′46″E
Sinzing railway bridge	2386.71	Danube Valley Railway	Sinzing		49°0′18″N 12°1′58″E
Sinzing motorway bridge	2387.6	Bundesautobahn 3	Regensburg	1966	48°59′57″N 12°2′22″E
Bad Abbach power station	2400.24		Bad Abbach		48°55′39″N 12°0′50″E
Poikam railway bridge	2401.96	Regensburg–Ingolstadt railway	Poikam		48°55′40″N 12°0′39″E
Saal road bridge	2410.1		Saal an der Donau		48°54′41″N 11°55′36″E
Kelheim Europa Bridge	2412.72		Kelheim	1977	48°54′32″N 11°53′30″E
Kelheim Maximilian Bridge	2414.25		Kelheim		48°54′49″N 11°52′22″E
Neustadt road bridge	2432.4	Bundesstraße 299	Neustadt an der Donau		48°48′59″N 11°44′23″E
Pförring road bridge			Pförring		48°47′40″N 11°41′28″E
New Danube Bridge			Vohburg an der Donau[w]		48°46′24″N 11°37′50″E
Old Danube Bridge		Bundesstraße 16a	Vohburg an der Donau		48°46′25″N 11°37′9″E
Vohburg weir			Vohburg an der Donau		48°46′39″N 11°36′3″E
Großmehring road bridge			Großmehring		48°45′36″N 11°32′18″E
Motorway bridge A9		Bundesautobahn 9	Ingolstadt		48°45′48″N 11°27′33″E
Schiller bridge		Bundesstraße 13	Ingolstadt	1963	48°45′52″N 11°26′24″E
Ingolstadt Rail Bridge		Nuremberg–Ingolstadt high speed railway	Ingolstadt	1922[x]	48°45′51″N 11°26′14″E
Donausteg			Ingolstadt		48°45′47″N 11°25′56″E
Konrad-Adenauer-Brücke			Ingolstadt	1948	48°45′37″N 11°25′42″E
Glacis Bridge		Bundesstraße 13, Ringstraße	Ingolstadt	1998	48°45′24″N 11°25′28″E
Ingolstadt power station dam			Ingolstadt	1971	48°45′1″N 11°24′43″E
Bergheim power station dam			Bergheim, Neuburg an der Donau	1970	48°45′4″N 11°16′22″E
Elisa Bridge			Neuburg an der Donau		48°44′20″N 11°10′54″E
Bittenbrunn power station dam			Neuburg an der Donau	1969	48°44′3″N 11°8′37″E
Bertoldsheim power station dam			Rennertshofen	1967	48°44′8″N 11°1′14″E
Marxheim Danube Bridge			Marxheim		48°44′9″N 10°56′36″E
Schäfstall Bridge			Schäfstall		48°43′1″N 10°50′45″E
B2 road bridge		Bundesstraße 2	Donauwörth		48°42′39″N 10°48′10″E
Donauwörth Danube bridge			Donauwörth		48°42′56″N 10°47′4″E
Railway bridge		Danube Valley Railway	Donauwörth		48°42′44″N 10°46′39″E
Kesseldamm Bridge		Bundesstraße 16	Donauwörth		48°42′15″N 10°46′29″E
Donauwörth power station dam			Donauwörth		48°42′1″N 10°46′12″E
Donaubrücke Donaumünster			Donaumünster	2007[19]	48°40′41″N 10°42′42″E
Schwenningen power station			Schwenningen	1983	48°38′42″N 10°40′30″E
Donaubrücke Gremheim			Gremheim		48°37′51″N 10°39′5″E
Donaubrücke Bruckmahdseen			Blindheim		48°37′6″N 10°37′56″E
Road bridge			Höchstädt an der Donau		48°36′16″N 10°35′19″E
Donaubrücke Steinheim			Steinheim		48°35′34″N 10°33′1″E
Donausteg Oberelchingen	2576		Elchingen		48°26′25″N 10°6′40″E
Donausteg			Ulm, Neu-Ulm	1976	48°24′26″N 10°1′0″E
Gänstor Bridge	2584.9	Brückenstraße	Ulm, Neu-Ulm	1950	48°23′56″N 10°0′13″E
Herd Bridge	2585.5	Marienstraße	Neu-Ulm, Ulm	1948	48°23′45″N 9°59′46″E
Donaueschingen road bridge		Bundesstraße 27	Donaueschingen		47°57′19″N 8°29′24″E

• (in German) Liste sämtlicher Brücken über die Donau (PDF) – Quelle: donauschifffahrt.info
• (in German) Liste der Schleusen – Quelle: donauschifffahrt.info /
• (in German) Die Donau ~ Faszination eines Flusses
• (in German) Die interaktive Kulturkarte entlang der Donau
• (in German) Arbeitsgemeinschaft Donauländer Archived 2017-07-24 at the Wayback Machine
• (in German) Wiener Donaubrücken
• (in German) Donaubrücken bei brueckenbau-links.de