The Netherlands is known for taking better care of its cyclists than other countries, but this may be taking the cake.
The sign at the beginning of the video says it all: “Spinoza Bridge closed from 2 May 9 p.m. to 4 May 11 p.m.” Two days in 2014. That is how little time it took the city of Utrecht to tear apart the bridge, put tunnel parts in the gap and repair the bridge. And all this for cyclists.
The city then took 12 more months to dot the i’s and cross the t’s, which included placing tile murals by Louise Hessel. Why the tunnel had to be built so quickly is unknown, but a report from 2009 (PDF) mentions that traffic crossing the bridge would be seriously inconvenienced if the bridge had to be closed. The same report argues vehemently against building the tunnel. Apart from the effects on traffic it mentions that the bridge’s counterweight room would ‘conflict with’ the tunnel and that the costs of alternative solutions would be humongous.
In 2015 the city started its campaign Utrecht Fietst (Utrecht Cycles) and (the run up to) this campaign may have created the funds and the political will to improve the cycling situation around the Spinoza Bridge after all. Alderman Lot van Hooijdonk opened the tunnel on 28 November 2014.
A more recent cycling development in Utrecht is that the city has closed a lot of bike paths to mopeds, which aren’t allowed to go faster than 25 kph, but reach much higher speeds in practice.