Message 10078

TUFLOW FV

Available since version: 2026.2.0

ERROR 10078 - “n_or_n_F” is unusually high (>1.0), ID<culvert_id>

Description

This error is raised during culvert initialisation when the n_or_n_F value for culvert <culvert_id> exceeds 1.0. A Manning’s ‘n’ value above 1.0 is erroneously high and likely indicates a data entry error.

Suggestions

Check the n_or_n_F column in the culvert input file for culvert <culvert_id> and confirm the intended value.