|Tri-Bridges Around the World - Collection||CuriousJM||8/27/09 1:17 AM|
Tri-Bridges are 3-way bridges on which traffic crosses two water streams or a body of water/lake from 3 directions and one can travel from any direction to any direction.
Because of their shape these bridges are generally called Y-Bridges. However the tri-bridge at Hiroshima is referred as 'T' bridge because of its distinct 'T' shape.
It is also pertinent to note that many Y-Bridges are just fork bridges wherein the traffic from one direction bifurcates in two directions or vice versa and there is no three way traffic.
In this post I am covering only the true Tri-Bridges and not the forked Y-bridges. There are not many Tri-Bridges in the World. Till now I have been able to find only Fourteen Thirteen Twelve Eleven tri-bridges, out of which there are Eight Seven Six Five regular road bridges, four existing pedestrian/foot bridges, one disused foot bridge and one proposed foot bridge. These are;
Aioi Bridge, Hiroshima, Japan
This 'T' shaped bridge is the historic and the tragic bridge which was used as target for the dropping of first atom bomb on August 6, 1945. The bomb missed slightly, exploding in the air over Shima Hospital located 300 meters away from the bridge. However the bridge was badly damaged due to the blast.
The original bridge at the site, meant for streetcars, was completed on December 12, 1932 and had a width of 15 metres. Later in 1934 a 'Tee' connection was added in its central section which connected it to the Island of Jisenji-no-hana (present Peace Memorial Park) and it thus got this unique T-shape. Perhaps it was this unique and rare sight which made it the centre of the target.
After the war, the bridge was repaired and put back in use but the bomb had taken its toll and the bridge gradually deteriorated. A new bridge was therefore constructed at the spot having total length of 123.4 metres, width 40 metres and has a streetcar track, 6 traffic lanes and pedestrian lane.
Few old pillars bearing the marks of the bombing are still preserved at the foot of the present bridge as a mute witness to history. Some of the girders deformed by the blast are also displayed in the Hiroshima Peace Memorial Museum.
Here is a model showing the town as it existed prior to bombing.
Image from Flickr is by austinmills
This is actual view of old bridge.
Link to Original Source: Hiroshima Institute for Peace Education
The present bridge.
Image from Flickr is by Gaz Errant
Source of info: http://www.pcf.city.hiroshima.jp
Bridge with Three Entrances (Ponte das Três Entradas), Portugal
Ponte das Três Entradas (Bridge with Three Entrances) is a Y-bridge on the confluence of rivers Alvoco and Alvo in Porugal. Located near Oliveira do Hospital, Santa Ovaia, Coimbra, it was built in 1899 and its construction opened up the whole area connecting the towns of São Sebastião da Feira, Santa Ovaia and Aldeia das Dez.
Because of its unique shape and location, the settlements in the vicinity are also known as 'Ponte das Três Entradas'. The area has also now become a camping site and draws tourists for outdoors activities like fishing and canoeing etc.
Image from Panoramio is by AJPires
Source of info: http://www.relvadotrigo.com
Credits: Special thanks to mjoaoh for bringing this to my knowledge.
Chu Y Bridge, Ho Chi Minh City, Vietnam
Chu Y Bridge spans Tau Hu and Doi canals to link Nguyen Bieu Street in District 5 and Hung Phu and Nguyen Thi Tan streets in District 8.
Original bridge at this location was built in 1937. However to cater for the rising needs of the traffic it was renovated and enlarged as a part of the East-West Highway Project.
The new bridge was inaugurated on April 28, 2009 and has navigation clearance of 6.3 metres and width of 12 meters. Since the bridge has been completed in April 2009 the GE imagery doesn't show the full bridge.
Following image uploaded on November 22, 2008 is possibly the old bridge.
Image from Panoramio is by Ngày Xửa Ngày Xưa
It may be noted that recently completed, nearby "Nguyen Van Cu" bridge (Panoramio Link) built as a part of the East-West Highway project looks like a bifurcated bridge and not a true Y-Bridge, hence I am not including it in this post.
Source of info: http://en.metvuong.com
Credits: Special thanks to Faysal Bin Darul for bringing this to my knowledge.
Hama Bridge (Sancha Zijin), Heicheng Village, Hebei, China
Located in Heicheng Village, Hebei Province, China, this bridge is locally known as Hama Bridge or Sancha Zijin and was built circa 1691.
Image from Flickr is by bridgink
Not much info is available about this bridge except for the above information which has been taken from the Flickr link given above.
Credits: Special thanks to Robert Cortright, photographer of above image, (www.bridgeink.com) for informing me about the existence of this bridge as well as pin pointing the exact location. Without guidance from him I couldn't have placemarked the location in GE.
Jasenovac Tri-Bridge, Croatia
Located on the borders with Bosnia and Herzegovina, the original 1973 bridge across the Sava and Una Rivers was destroyed by Serb forces during the 1991 conflict. A new "Y" shaped bridge was built in 2005. One arm of the bridge starts from Jasenovac spanning the Sava river with Y-junction in the Uštica. The second arm takes the traffic to Uštica and the third arm which spans the Una river, crosses the international border connecting Croatia with Bosnia and Herzegovina.
Image Source: Google Maps
Image Source: Google Maps
Source of info: Serendipity brought me to this bridge and not much info is available about it on the Net. However some brief reference can be found in Wikipedia
Louisa Louisa/Fort Gay Tri-Bridge
The Louisa/Fort Gay Tri-Bridge at the confluence of Levisa and Tug Rivers is a T-shaped bridge. Opened in 1906, it is reportedly the only bridge in the U.S.A which not only spans two rivers but also connects two states (Kentucky and West Virginia), two counties (Lawrence County, Kentucky and Wayne County, West Virginia), and two cities (Louisa, Kentucky, and Fort Gay, West Virginia).
Its third arm in the center, connects to a land mass in Louisa, KY which lies just upstream of the confluence point. This land mass is known as "The Point Section". Locals enjoy giving direction to stranger wanting to go to the Point section. In the words of my blog's reader vldecker;
'.... when someone from out of town asked directions to "The Point Section" it was always fun to tell them to "go to the middle of the bridge and turn right"....'
Image Source: MSN Bing Bird's Eye View
Image Source: Google Street View
Credits: I am grateful to reader vldecker whose comments on my post brought this bridge to my knowledge. Thank you vldecker.
Margaret Bridge (Margit Hid), Budapest, Hungary
Margaret Bridge (Margit híd) connects Buda and Pest across the river Danube. It was built between 1872-76 and is the second oldest bridge in Budapest and one of the most widely used bridge. The main bridge has an angle of 165 degrees, is 637.5 metres long and 25 metres wide. Near about the mid point there is a small third arm leading to the 'Margaret Island'. This extension was added in design at the last stages of designing hence the slight angle. However the extension was built almost 20 years after the completion of the main bridge.
The bridge got damaged in 1944 and was repaired after the war. Due to extensive use it needed repairs badly so it has been closed in September 2009 for a year. I understand the pedestrians/cyclists will continue to use it while cars and heavy vehicles will have to use the other bridges till it is back in service.
Image from Panoramio is by koszo
Image from Panoramio is by Gáspár Norbert Pál
Image from Panoramio is by baranyielek
Image from Flickr is by Jo Peattie
A good 3-D view is available in Google Sketchup.
Source of info: Wikipedia
Credits: Special thanks to Syzygy for bringing this to my knowledge.
Y-Bridge, Zanesville, Ohio
This road bridge is an historical bridge in Zanesville, Ohio and is commonly known as "Y-Bridge". Located in Zanesville, it spans confluence of the Licking and Muskingum Rivers.
The first Bridge at this location was a wooden bridge and was built around 1814. The present bridge, 5th at the spot, was opened in 1984. It is a big land mark and was even used as an aviation landmark for many years. Amelia Earhart, famous American aviation pioneer, was quoted as saying "Zanesville is the easiest recognized city from the air because of the Y- Bridge".
Image from Panoramio is by Tom Roff
Image from Flickr is by Lady-lepere
Source of Info: Wikipedia
More info: http://www.coz.org
Kikko Bridge, Mie, Japan
Kikko Bridge is a three way foot bridge in Aoyama-Kohgen Golf Club, Mie, Japan. It was built in 1991 and gives easy access from club house to the to golf courses around a small pond.
Link to source of images.
Source of info: http://deputy-dog.com and http://tabikappa.blog55.fc2.com (in Japanese) (English Translation)
More info: Technical Details
The Tridge, Midland, Michigan
This Tri-Bridge located on the confluence the Chippewa River and Tittabawassee River is known as "The Tridge". It is mainly a footbridge, however bicycles, skateboards and rollerblades are also allowed on the bridge. Constructed in 1981 it has since become an icon of the city and is the most famous landmark of the downtown area. The Tridge is well illuminated during the night.
Image from Panoramio is by SMwortman
Image from Panoramio is by SMwortman
Image from Panoramio is by Fenton Low Altitude …
Source of info: Wikipedia
The Tridge, Frog Island Park, Ypsilanti, Michigan
Like the famous Tridge at Midlands, this small three-way wooden foot bridge which connects Riverside Park, Frog Island Park and Depot Town is also locally known as The Tridge. It is situated under the Cross Street bridge over the Huron River.
Image from Panoramio is by jorgesuarezverdier
Image source: Google Earth
Source of info: Arborwiki
Treponti, Comacchio, Italy
This is a very unusual bridge, probably only one of its kind - a 5-way bridge at the intersection of five streams of canal. Located in the small village of Comacchio, Italy, it is known as Treponti (3 bridges) and was built in 1634. It has three accesses on front and two on back.
Image from Panoramio is by Roberto Dona'
Image from Panoramio is by cesare santelia
A good 3-D view of this unique bridge can be seen at this Link.
Source: Paolo's comments in http://deputy-dog.com
Trinity Bridge, Crowland, Lincolnshire, England
Trinity Bridge is the unique triangular bridge in Crowland, Lincolnshire. The bridge has three stairways that converge at the top. It is one of the oldest stone bridge in England. The current bridge dates to the 14th century (built between 1360 and 1390) is now grade I listed.
Originally it spanned the river Welland and its streams Nene, and Catwater which flowed through the town. The river was later rerouted and the bridge now sits high and dry in the centre of the town.
From "Encyclopaedia Britannica, 11th Edition, Volume 4, Part 3 p.0535" (Source: http://www.gutenberg.org)
|Re: Tri-Bridges Around the World - Collection||mjoaoh||10/8/09 3:56 AM|
There is in Portugal an old bridge with three entrances called "Bridge with Three Entrances" ("Ponte das Três Entradas"), built in XVIII (18th) century (1790).
It's location is 40° 18.398'N 7° 52.280'W
Some photos can be found at
|Re: Tri-Bridges Around the World - Collection||CuriousJM||10/8/09 8:19 AM|
Originally Posted By: mjoaoh
There is in Portugal an old bridge with three entrances called "Bridge with Three Entrances" ("Ponte das Três Entradas"), built in XVIII (18th) century (1790).Maria Joao
Thank you Maria. The bridge looks great. I will add it soon in this collection.
All the best.
Google Earthritis is incurable!
|Re: Tri-Bridges Around the World - Collection||CuriousJM||10/11/09 2:09 AM|
I have added today following three road bridges in this tri-bridge collection;
1. Aioi Bridge, Hiroshima, Japan
2. Ponte das Três Entradas)(Bridge with Three Entrances), Portugal - Courtesy mjoaoh.
3. Margaret Bridge (Margit Hid) Budapest, Hungary - Courtesy Syzygy.
I am myself surprised how I missed the famous Hiroshima bridge in my original collection. What is more surprising that the Google also didn't show it in my searches for 'Tri bridges' or 'Y bridges'. However Google does show it when I search now for 'T Bridges'.
|Tri-Bridges Around the World - Collection||Faysal Bin Darul||10/21/09 11:41 AM|
Please add this Y bridge in your unique collection too.
Here it is from Ho Chi Minh City.
The connecting Bridge between district 5,7 and 8 of the City.
Image by Ngày Xửa Ngày Xưa from Panoramio
This bridge might have some history related to Japanese, wish you will figure it out.
It is located here.
Very lovely and artistic collection.
|Re: Tri-Bridges Around the World - Collection||CuriousJM||10/30/09 2:39 AM|
Originally Posted By: Faysal Bin Darul
Thank you Faisal
There is some thing wrong with GEC notification system. I didn't get any notice about your post and read it just now.
I will soon add this bridge in my collection here in GEC as well as in my travelogue
|Re: Tri-Bridges Around the World - Collection||CuriousJM||10/30/09 11:40 PM|
Based on the information given by Faysal I have added "Chu Y Bridge", Ho Chi Minh City, Vietnam and have also uploaded revised .kmz file.
Faisal - Thank you once again for informing me about this tri-bridge. However I couldn't find any web page giving bridge's past history or connection with Japanese. If you can find some thing please do let me know - Thanks.
|Re: Tri-Bridges Around the World - Collection||jstruthers||11/6/11 11:24 PM|
If railroad bridges count there is still a functional one across the upper Allegheny River in Northwestern Pennsylvania.
Can be seen in aerial view on Youtube -Oil City.
Loction Oil City PA.
There should be flicks of the old Point Bridge system in Pittsburgh. I believe they were both blown/dropped in the 1969-71 timeframe. they radiated from the Pittsburgh point Park to the Old North Side and to the area under the Pittsburgh Incline.
fwiw:Ft Duquesne still resides at least in replica at Point Park.
|Re: Tri-Bridges Around the World - Collection - Updated May 27, 2012||CuriousJM||5/27/12 10:28 AM|
I have added today the Louisa/Fort Gay Tri-Bridge at the confluence of Levisa and Tug Rivers connecting the cities of Louisa, Kentucky and Fort Gay, West Virginia.
The bridge was placemarked by Leget as early as Sept. 07, 2005 under the title "One bridge crossing two rivers" but as he hadn't mentioned Tri-bridge, it didn't appear in the search results for Tri Bridge or Y Bridge or T Bridge and I had missed including this more than a century old bridge in my earlier collection. I have now included this bridge in the revision made today.
|Re: Tri-Bridges Around the World - Collection||CuriousJM||5/27/12 11:00 AM|
My apologies for this late response to your post. I read it only today.
It seems you are referring to the Oil City Pennsylvania Railroad Bridge shown below;
If yes, then strictly speaking it is not a tri-bridge but a fork bridge on water which connects to two other forks on the land.
If you meant some other bridge then please give the coordinates or link to the same. The YouTube "Oil City, Pennsylvania" also didn't provide any useful information.
|(unknown)||5/28/12 2:31 AM||<This message has been deleted.>|
|Re: Tri-Bridges Around the World - Collection - Updated May 27, 2012||Diane9247||6/13/12 10:15 PM|
Fantastic collection, CJM! Upon first view, these bridges seemed dangerous and...well, like not a very good idea. Perhaps that's true in urban settings where I see some have no stop light or other apparent traffic control. Then I realized I've been on at least one Y-bridge and certainly a T, but in "back country" places. I just wish I could remember exactly where they were (well, in California somewhere). I'll let you know if my light bulb finally switches on! ;b
The ancient Trinity Bridge in the UK is a real treasure, just remarkable! I would love to see it first hand. Thank you for this fascinating post!!!
|Re: Tri-Bridges Around the World - Collection - Updated May 27, 2012||CuriousJM||6/14/12 2:01 AM|
Thank you Diane! I am happy that you liked this collection.
I tried searching for Y or T Bridges in California but failed to find any mention of such bridges in California. I will wait for your flash light to pop.
All the best
|Re: Tri-Bridges Around the World - Collection - Updated Nov. 02, 2012||CuriousJM||11/2/12 10:36 AM|
Found by serendipity the Jasenovac Tri-Bridge, Croatia and have added it today in the Tri-Bridges Around the World - Collection.
The revised kmz file which now includes the Jasenovac Tri-Bridge has also been uploaded.
|Re: Tri-Bridges Around the World - Collection - Updated Nov. 02, 2012||Dick T||3/2/13 8:24 AM|
An interesting site. I know of another tri-bridge here in Great Britain. It is a modern footbridge in Thetford, Norfolk, where the river Little Ouse joins the River Thet. It is clearly seen on Google Earth, in the town.
Keep up the good work.
|Re: Tri-Bridges Around the World - Collection - Updated Nov. 02, 2012||CuriousJM||3/7/13 9:47 AM|
Thank you Dick,
This is great find - I will placemark it in GE and add it here also. Thanks once again.