Spean Praptos (Kampong Kdei Bridge) has 21 narrow corbeled stone arches spanning 86–87 meters across the river. Built from laterite and sandstone, it was once the longest corbeled stone-arch bridge in the world, on the ancient road from Angkor to Phnom Penh. ⚔️🛶
Spean Praptos designed as military naval choke point

Site mentioned
📍 Spean Praptos
Key facts
- The bridge has 21 piers with deliberately narrow spans between them
- Narrow spans reduce water energy and force against the piers during floods, while simultaneously preventing large boats from passing
- Small fishing boats and kayaks can navigate the spans, but warships cannot — Khomer naval warfare scenes carved on the walls of Bayon Temple depict large warships used in military campaigns
- The bridge effectively functions as a military checkpoint and defensive choke point across the river, consistent with its name "bridge of escape"
Sources
Spean Praptos - Wikipediaen.wikipedia.org
Spean Praptos on the road from Angkor to Phnom Penh, Cambodia, used to be the longest corbeled stone-arch bridge in the world, with more than twenty narrow ...
21. Bridge Spean Praptos (also known as Kampong Kdei Bridge) on ...researchgate.net
21. Bridge Spean Praptos (also known as Kampong Kdei Bridge) on a southern road from Angkor. Source publication.
1000 year old bridge - Review of Spean Praptos, Kampong Kdei ...en.tripadvisor.com.hk
Spean Praptos: 1000 year old bridge - See 72 traveler reviews, 199 candid photos, and great deals for Kampong Kdei, Cambodia, at Tripadvisor.
Spean Praptos – Kampong Kdei Bridge - Hello Angkorhelloangkor.com
It is a grand ancient laterite bridge measuring 86 m long and 14 m wide with 21 arches and topped by a sandstone balustrade with stunning ornamental naga.
Spean Praptos: Cambodia's Oldest Bridge | theraulaz.chtheraulaz.ch
Technical Characteristics# · Length: 87 meters · Number of arches: 21 stone vaulted arches made of laterite · Materials: laterite and sandstone ...
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