Klavže I
SI:
PRINESI SVOJE PISALO!
Klavže so mogočne vodne pregrade na reki Idrijci, njenih pritokih Belci in Zali ter pritoku Kanomljice - Klavžarici. Namenjene so bile zadrževanju in zbiranju vode za plavljenje lesa do rudnika živega srebra v Idriji, ker v porečju Idrijce do začetka 20. stoletja ni bilo na razpolago ne gozdnih cest ne ustreznih prevoznih sredstev. Sestavni del sistema za plavljenje po naravnih vodnih poteh je bila tudi 413 metrov dolga lesena zapora za zaustavljanje lesa na sotočju Idrijce in potoka Nikove v Idriji, imenovana grablje. Manjše grablje so bile tudi na sotočju Kanomljice in Idrijce v Spodnji Idriji. Prve klavže so bile zgrajene že ob koncu 16. stoletja, vendar pa so bile lesene in zato tudi potrebne pogostih obnov. V drugi polovici 18. stoletja so zato namesto lesenih klavž zgradili mogočne kamnite zgradbe, ki so delovale vse do leta 1926, ko je velika poplava uničila velik del grabelj in je rudniška uprava namesto popravila raje uvedla takrat že dovolj razvite tovornjake. Zaradi svoje monumentalnosti in odlične gradnje so priznane kot ene izmed najpomembnejših objektov tehniške dediščine, oprijel pa se jih je tudi vzdevek "slovenske piramide".
Prve v tej seriji so Brusove klavže na reki Belci, ki so tudi najlažje dostopne. Zgrajene so bile v letih 1767–1769 po načrtih Idrijčana Jožefa Mraka. Višina pregrade je bila 8,9 metra, dolžina zgoraj 34,8 metra in debelina pregrade 6,5 metra. Po tem, ko so leta 1926 bile opuščene, so bile prepuščene zobu časa in narave, vse do 90. let dvajsetega stoletja, ko so bile obnovljene pod okriljem Mestnega muzeja Idrija.
Brusove klavže so lahko zadrževale 100 000 m3 vode, če pa to ni dovolj so lahko pri splavljenju pomagale še Putrihove klavže nekaj kilometrov višje na Belci, ki so zadrževale dodatnih 20 000 m3vode. Z enim samim plavljenjem le ta lahko odnesla okoli 5000 m3 lesa do 14 km oddaljenih grabelj v Idriji, kar se je ponavadi počelo dvakrat na leto. Da je zgradba lahko zadržala pritisk tako ogromne količine vode so bile natančno vzidane in uprte v naravne skale soteske Belce. Poleg tega so bile zgrajene iz posebne "pocuolanske malte," ki je klavžam dovolila "dihati" - majhne raztezke, ki so pomagali k enakomernejši porazdelitvi sil na zgradbo.
Zaklad je kakih 100 m od table z informacijami. Da pridete do zaklada ni potrebno ogrožati svojega življenja z lazenjem blizu roba soteske ali podobnimi neumnostmi, kljub temu pa bodite pozorni na to, kje hodite. Med 1. julijem in 31. avgustom je za vstop v krajinski park Zgornja Idrijca z motornim vozilom potrebno plačati okoli 5 € takse.
ENG:
BRING YOUR OWN PEN!
Klavže (pronounced: khla-wzhe) are mighty water barriers on the river Idrijca and its affluxes Belca, Zala and the afflux of Kanomljica - Klavžarica. They were used to hold and collect water with the purpose of transporting wood to the mercury mine in Idrija, where it was needed for supporting the mine tunnels, construction and smelting of the ore. The second part of the transportation system was a 413 m long barrier in Idrija called "grablje" which worked much like a giant strainer. The first klavže were built as early as 16th century, however they were wooden and needed frequent repairs. Therefore the stone klavže were built in the second half of the 18th century. These operated until 1926 when a mighty flood destroyed the grablje in Idrija and it was decided that trucks were beginning to be the better alternative. Due to its size and building technique the klavže are considered one of the most important Slovenian tecnical monuments and are sometimes dubbed "the Slovenian pyramids".
The first in the geocaching series are the "Brusove klavže", which also allow for the easiest access. They were built in the years 1767-1769 after the plans of the idrian architect Jožef Mrak. They are 8.9 m tall, 34.8 m long at the top and 6.5 m thick. After they were abandoned in 1926 they were left to time and nature, until they were restored in the 90s, under the caring eye of Idria Municipal Museum.
Brusove klavže could hold up to 100 000 m3 of water, however if that wasn't enough there was another 20 000 m3 that could be used in Putrihove klavže a few kilomenters upriver. The water could carry up to 5000 m3 of wood in a single flood, to the grablje barrier in Idrija, 14 km downriver. This was usually done twice per year. For klavže to be able to withstand the enormous pressure of the collected water, they were built into the solid rock of the ravine itself. They were also built from a special mortar, that allowed the klavže to "breathe" - little streches that helped to even the forces on the building.
The cache itself is around 100 m from the info table. To get to the cache you do NOT need to risk your life by climbing to the edge of the ravine or something similair, however still be careful where you walk. Between the 1st of July and the 31st of August there is a tax of around 5 € to be paid for entering the Upper Idrijca park with a motor vehicle.