roadThe Yang Tree Road, Chiang Mai to Lamphun

ถนนต้นยาง เชียงใหม่–ลำพูน · Thanon Ton Yang

A thousand trees planted in 1882, and a poll in 2020 on whether to keep them.

This is a mature Dipterocarpus alatus tree. In Thailand it is known as a Yang na (ยางนา)

DSwarthout · CC BY-SA 4.0

106Route

1882 (trees)opened

from Nawarat Bridge to Lamphun provincial line

18.7450, 99.0150 · OpenStreetMap · The map

What it is

The old road south to Lamphun, the Saraphi stretch of Route 106, lined with yang-na, Dipterocarpus alatus. About a thousand were planted from the Nawarat Bridge to the provincial line under Chao Phraya Surasi, dated 20 October 1882 by Thai PBS and by a telegram of 1900 in Thai Wikipedia; the two dates are not reconciled in any source on this disk. Infill planting in 1954; a protected-environment zone 40 m each side since 2015; storm damage in 2016. Counts of the surviving trees run from 800 to 900.

The long version

A Mae Jo poll in October 2020, 403 respondents: 54 percent said the trees were not a problem, 61 percent wanted them conserved, 4 percent wanted them removed, and of the critics 59 percent cited branches over the traffic.

Inference — the Superhighway of 1969 was built to take the Bangkok traffic off this road, and the thesis this rests on says traffic on it fell sharply as a result. The trees are alive partly because a bypass was built past them. That is the clearest case on this site of a new road doing an old one a favour.

Het gedeelte van de Noord-Thaise weg 106 dat tussen Chiang Mai en Lamphun loopt, wordt ook wel de "oude Chiang Mai - Lamphun weg" genoemd. Het gedeelte daarvan dat in de provincie Chiang Mai ligt, hee — FredTC · CC BY-SA 4.0

Connected to

Chao Phraya Surasi Wisitsak Who had them planted.
Route 106, the old road south The whole road.
Route 11, the Superhighway The bypass that spared it.
The trees on the Lamphun road The long version.

Named here by

Nong Hoi junction Begins south of it.
Route 106, the old road south Its famous stretch.
Route 11, the Superhighway The road it took the traffic off.
1796–1900 — Kawila's rebuilding The trees.
The Army Map Service sheet, Ban Saraphi The road on it.
McCarthy's Siam, 1900 What he had planted.
How far the city spread The tree.
The trees on the Lamphun road The road.
What a road does to an old city The exception.
Chao Phraya Surasi Wisitsak The trees.

Where each claim comes from

Field	Tier	Source	Note
default	cited	ต้นยางนาถนนเชียงใหม่–ลำพูน — Thai PBS
text_th	inference		written in Thai by this project, in the northern register where it fits; not machine-translated

Sources

cited Cited — a named source, linked · harvested Harvested — fetched from an open dataset, with its licence · tradition Tradition — general knowledge of the tradition, hedged · inference Inference — this project's own reasoning from the above · field Field — someone stood there

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