Tönnön silta

Tönnön silta
Ajokaistoja 2 (kapeaa)
Ylittää Porvoonjoen
Sijainti Tönnö, Orimattila
Ylläpitäjä Orimattilan kunta
Siltatyyppi teräsbetoninen kaarisilta
Pisin jänneväli 23,5 m
Pituus 37 m
Leveys 6,5 m
Avattu liikenteelle 1911
Koordinaatit 60°47′50.6″N, 025°41′38.0″E
Lisää silta-artikkeleitaArkkitehtuurin teemasivulla

Tönnön silta on Orimattilan Tönnön kylässä oleva Porvoonjoen ylittävä silta. Se on Suomen ensimmäinen kaarisilta ja vanhin säilynyt teräsbetoninen silta.[1] Silta valmistui vuonna 1911.[2] Sillassa on rinnakkain kolme erillistä betonikaarta. Sen pituus on 37 metriä, leveys 6,5 metriä ja vapaa aukko sillan alla 22,5 metriä. Sillan suunnitteli Jalmar Castrén Artjärven kunnan ja Orimattilan kunnan yhteisen 1910 pidetyn kuntakokouksen päätöksellä. Aikaisemmin ei vastaavanlaista siltaa ollut rakennettu, koska rautabetonin käyttöön suhtauduttiin epäillen. Silta korvasi rappioituneen vanhan puusillan. Tientekoon velvoitetut maksoivat työn ja rakentamisesta vastasi Tampereen Sementtivalimo ja Rautabetoni Oy. Urakkahinta oli 14 780 markkaa. Silta oli yleisessä maantiekäytössä vuoteen 1971, jonka jälkeen sen rinnalle valmistui uusi silta ja vanha silta jäi kevyen liikenteen käyttöön.[3] Sillasta tuli museosilta 1982. Siltaa korjattiin 1986–1987.[4]

Sillan kivetty kansi.

Sillan eteläpuolella on Tönnönkoski. Silta ja sen viereinen koski kuuluvat Museoviraston inventoimiin valtakunnallisesti merkittäviin rakennettuihin kulttuuriympäristöihin[5]

Tönnön kyläjohtokunta järjestää vuosittain Tönnön sillan ja Tönnön myllyn läheisyydessä sillan pohjoispuolella Tönnön siltajuhlat. Sillalla järjestetään kylän köydenvetokilpailu.[6]

Lähteet

  1. ↑ Aitta, Seppo (vast.toim): Siltojemme historia, s. 290–291. Suomen Rakennusinsinöörien Liitto RIL ry, 2004. ISBN 951-758-446-6
  2. ↑ Päijät-Hämeen museon sivusto (Arkistoitu – Internet Archive)
  3. ↑ Liimatainen, Kirsi: Tiehallinnon museotiet ja -sillat, s. 83–85. (Museokohdeselvitys) Tampere: Tiehallinto, 2007. Teoksen verkkoversio (pdf) Viitattu 7.8.2011.
  4. ↑ Tönnön sillan opastetaulu suomen, ruotsin, englannin ja saksan kielillä. Valokuva commonsissa
  5. ↑ Tönnönkosken silta ja myllypaikka Valtakunnallisesti merkittävät rakennetut kulttuuriympäristöt RKY. Museovirasto.
  6. ↑ Siltajuhlat (Arkistoitu – Internet Archive) Tönnön kyläjohtokunta

Aiheesta muualla

Suomen museotiet, tieliikenteen museosillat ja rautateiden museosillat
Etelä-Karjala
Etelä-Pohjanmaa
Etelä-Savo
Kainuu
Kanta-Häme
Keski-Suomi
Kymenlaakso
Lappi
Pirkanmaa
Pohjanmaa
Pohjois-Karjala
Pohjois-Pohjanmaa
Pohjois-Savo
Päijät-Häme
Satakunta
Uusimaa
Varsinais-Suomi
Huom! Savukosken silta on Kymenlaakson ja Uudenmaan rajalla.

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