Roads have now been open for 17 St South, 17 St North, 102 Ave and 108 Ave.
"Proceed with caution. Roads may narrow in some areas," noted officials.
"Although all roads are now open, watch out for barricades and cones that mark areas of caution."
Late Thursday afternoon, Peace region and northeast BC was upgraded from a high streamflow advisoruy to a flood watch.
Flooding began early Thursday morning in Dawson Creek and began later that evening in Fort St. John.
The River Forecast Centre BC says rainfall over the past two days has ranged between 30 to 80mm.
Environment Canada expects a further 20 to 40 mm Friday, with further unsettled weather in the long-term forecast.
Friday morning, Environment Canada said DC could expect a long episode of rain, at times heavy.
"A further 20 to 40 mm of rain is expected to fall today and tonight over the B.C. Peace River, Fort Nelson, and Muncho Lake Park - Stone Mountain Park regions. A persistent low pressure system over Alberta has led to several days of heavy rain," notes Environment Canada.
So far in this rain event 40 to 80 mm of rain has fallen over the region since Wednesday morning.
After a brief break in the rain yesterday afternoon, widespread showers have redeveloped over the region overnight. The showers are expected to continue through tonight and ease on Saturday as the low pressure system weakens.