Room 147W was probably constructed towards the end of the Chacoan period at Salmon Pueblo. It was built as an addition to the Chacoan roomblock just west of Room 142W. The room constitutes a long, nearly 20 m, space that is 2.2 m wide; it was apparently never divided into smaller rooms. No work was completed beyond exposing walls and no features were identified. A single stratum was defined. There are no feature, strata, photographic, or documentary records available for this room.