{{Short description|Village in Øyer Municipality, Norway}} {{For|the biopharmaceutical|Catridecacog}} {{Infobox settlement |official_name = Tretten |other_name = |native_name = |native_name_lang = |nickname = |settlement_type = Village |image_skyline = FV357 Tretten sentrum.jpg |image_caption = View of the village |mapframe = yes |mapframe-zoom = 11 |mapframe-marker = village |pushpin_map = Innlandet#Norway |pushpin_label = |pushpin_label_position = top |subdivision_type = Country |subdivision_name = Norway |subdivision_type1 = Region |subdivision_name1 = Eastern Norway |subdivision_type2 = County |subdivision_name2 = Innlandet |subdivision_type3 = District |subdivision_name3 = Gudbrandsdalen |subdivision_type4 = Municipality |subdivision_name4 = Øyer Municipality |timezone1 = CET |utc_offset1 = +01:00 |timezone1_DST = CEST |utc_offset1_DST = +02:00 |area_footnotes = <ref name="ssb" /> |area_total_km2 = 1.22 |population_as_of = 2024 |population_footnotes = <ref name="ssb" /> |population_total = 861 |population_density_km2 = 706 |postal_code_type = Post Code |postal_code = 2635 Tretten |coordinates = {{coord|61.31438|10.30057|region:NO_type:city|display=inline,title}} |elevation_m = 189 |elevation_footnotes = <ref>{{Cite web |title=Tretten, Øyer |url=https://www.yr.no/nb/v%C3%A6rvarsel/daglig-tabell/1-539599/Norge/Innlandet/%C3%98yer/Tretten |access-date=2022-06-20 |publisher=yr.no}}</ref>}}
'''Tretten'''<ref>{{Cite web |title=Informasjon om stadnamn |url=https://stadnamn.kartverket.no/fakta/329083 |access-date=2025-07-26 |website=Norgeskart |publisher=Kartverket |language=no}}</ref> is a village in Øyer Municipality in Innlandet county, Norway. The village is located on the Losna lake, which is part of the Gudbrandsdalslågen river. Tretten is located in the Gudbrandsdal valley, along the Gudbrandsdalslågen river in the southern part of the municipality. It is located along the European route E6 highway, about {{convert|25|km}} north of the town of Lillehammer. The municipal center of Tingberg lies about {{convert|5|km}} to the southeast of Tretten.
The {{convert|1.22|km2|acre|adj=on}} village has a population (2024) of 861 and a population density of {{convert|706|PD/km2}}.<ref name="ssb">{{Cite web |last=Statistisk sentralbyrå |author-link=Statistics Norway |date=2024-10-01 |title=Urban settlements. Population and area, by municipality |url=https://www.ssb.no/en/befolkning/folketall/statistikk/tettsteders-befolkning-og-areal}}</ref>
==History== The village had its own sports team ''Tretten IL'' until 1990, when a merger created Øyer-Tretten IF. The village is also the site of Tretten Church which serves the northern part of the municipality.
Tretten was the location of the biggest train disaster in Norway's history. The Tretten train disaster occurred on 22 February 1975 when two passenger trains collided head on. The tragedy resulted in 27 people being killed.
On 15 August 2022, the Tretten Bridge over the Gudbrandsdalslågen river completely collapsed;<ref>{{Cite web |last=Jessel |first=Ella |date=15 August 2022 |title=Timber bridge in Norway 'built to last 100 years' collapses after a decade |url=https://www.newcivilengineer.com/latest/timber-bridge-in-norway-built-to-last-100-years-collapses-after-a-decade-15-08-2022/ |archive-url=https://web.archive.org/web/20220816064146/https://www.newcivilengineer.com/latest/timber-bridge-in-norway-built-to-last-100-years-collapses-after-a-decade-15-08-2022/ |archive-date=16 August 2022 |access-date=16 August 2022 |website=New Civil Engineer |language=en}}</ref> it had beams of glued laminated timber and others of weathering steel.<ref>{{Cite news |date=2022-08-31 |title=Vegvesenet verderte forbud mot stålet som ble brukt på tretten bru |trans-title=Public Roads Administration was considering a ban on the (type of) steel - used on Tretten Bridge |url=https://www.dagsavisen.no/nyheter/innenriks/2022/08/31/vegvesenet-vurderte-forbud-mot-stalet-som-ble-brukt-pa-tretten-bru/ |access-date=2022-08-31 |work=Dagsavisen |language=no}}</ref><ref>{{Cite news |last=Nilsen |first=Sondre |last2=Engan |first2=Øyvind |last3=Fausko |first3=Line |date=2022-08-26 |title=Ni teorier om Tretten |trans-title=Nine theories about Tretten |url=https://www.vg.no/spesial/2022/tretten-bro-kollapsen/ |work=Verdens Gang |language=no}}</ref><ref>{{Cite news |date=2022-08-18 |title=Ekspert om brokollapsen: − En ingeniør ville neppe kommet opp med en slik bro |trans-title=Expert about the bridge collapse: − An engineer would likely not have come up with a bridge like this |url=https://www.vg.no/nyheter/innenriks/i/EadR7l/ekspert-om-brokollapsen-en-ingenioer-ville-neppe-kommet-opp-med-en-slik-bro |work=Verdens Gang |language=no}}</ref> There were no fatalities. One vehicle driver was rescued by helicopter and the driver of a car escaped by himself.<ref>{{Cite news |title=Drivers rescued after Norway bridge collapse |url=https://www.bbc.co.uk/news/av/world-europe-62556563 |access-date=2022-08-16 |work=BBC News |language=en-GB}}</ref><ref>{{Cite news |date=16 August 2022 |title=Car plunges into water as Norwegian bridge collapses |url=https://www.abc.net.au/news/2022-08-16/norwegian-bridge-collapses-2-rescued/101337198 |access-date=16 August 2022 |work=ABC News |language=en-AU}}</ref>
===Name=== The village (and church parish) is named after the old ''Tretten'' farm ({{langx|non|Þrœttin}} or {{lang|non|Þróttvin}}) since the first church was built there. This farm is now named ''Prestgarden'' which means 'the vicarage'. The first element of the name is ''þróttr'' which means 'force' or 'power'. The last element is ''vin'' which means 'meadow'. The farm is lying close to the river Moksa, and the first element is probably referring to the stream and the waterfalls in the river here.
==See also== *Bridge collapse in 2022
==References== {{reflist}}
{{Authority control}} {{use dmy dates|date=June 2022}}
Category:Øyer Municipality Category:Villages in Innlandet Category:Populated places on the Gudbrandsdalslågen