[1] It then traverses the municipality of Tuba[2] along the foot of the Santo Tomas mountain range, where several tributary creeks join the river.

A river dike has been constructed in the barangays of Artacho, Cauringan, Esperanza, and Poblacion Norte to prevent flowing into the town center.

[3][4] Landslides along Kennon Road,[5] including quarrying and aggregates crushing plants in riversides also release silt and sand into the river.

[3][6] The Agat Bridge, which serves as the highway boundary between the towns of Sison and Rosario, spans several hundred meters due to the widening of the river.

[8] Concerns have also been raised over pollution in the river, which is attributed to fecal matter originating from around 1,000 piggeries concentrated along Kennon Road, as well as a tributary creek near the Lion's Head monument that is used as a dumping ground for mining and quarrying waste.