Once in Plymouth, the creek continues to flow south for several tenths of a mile before turning southwest.

[7] Mine subsidence affects the dam, but as of 2009, Luzerne County considered the mitigation of this problem to be low-priority.

[5] The surficial geology in the vicinity of the lower reaches of Wadham Creek consists largely of alluvium, with some fill.

The surficial geology near the creek's middle reaches consists mainly of alluvial fan and Wisconsinan Ice-Contact Stratified Drift.

The surficial geology in the creek's upper reaches features land where coal was once surface mined, with large pits and piles of rock waste.

[3] According to Samuel L. French's 1915 history, Reminiscences of Plymouth, Luzerne County, Penna, arks and flat-bottomed boats used to transport coal downriver to market were constructed in a long-vanished natural formation known as the "basin".

[6] In 2000–01, after 30 years of political wrangling Wadham Creek was the subject of a restoration project costing $1.3 million.