Images
The Herre bridge over the Hogarsälven river with its naturally shaped bridge brackets, the old royal road through Bohuslän runs parallel to the E6 for a short distance.
Two renowned travellers describe how they ride on the royal road right here - the first is the Oslo bishop Jens Nilssön, on April 20, 1594 he describes how he, after being in Tanum, rode over the bridge over the Hogarsälven. The bridge is then called Herrebro:
So we went over Herrebro in the northwest and had a saw on the left hand, right next to the bridge, and then Peder Knudsen from Orust comes. The river comes from east/northeast from Bolsjön and runs west/southwest through Lur parish 1 mile to Herrebro, then it flows from there 6 or 8 arrow shots into a wedge called Kragenäskilen, which we had on our left hand 3 or 4 arrow shots from the road before we came to Herrebro. Just west of the bridge is a farm called Hogar (one arrow shot corresponded to 267 metres).
The other traveller who describes the bridge over Hogarsälven is Linnaeus' disciple Pehr Kalm who on 6 August 1742 writes as follows when he came riding from the north:
I travelled over the bridge a little before I came to Skälleröd, whose chests seemed to be so firm and well founded that it must be a fairly large river that could disturb them, because the stream, which at this place was a fathom wide and over which the bridge lay, runs between two large hills, which here served as bridge chests. The sides of these two hills that met the stream went down almost perpendicularly, and the ridges or beams on which the bridge arch rested were laid with one end on one hill and the other on the other. From the water's edge in the stream to the bridge abutments could be 1 1⁄2 fathom. (1 fathom=1.78 metres).
(from An insignificant crossroads - or? Kristina Bengtsson PDF)