Boise National Forest, Clear Creek and Wilderness Ranch fire crews expect to have containment on a wildfire by late Friday that threatened more than 100 homes near the intersection of Idaho 21 and Grimes Creek Road earlier this week.

Fire officials also say it looks like the 403 acre Avelene Fire — which came as close as an eighth of a mile to homes in the Clear Creek subdivision on Wednesday — was human-caused. Investigators are still trying to determine exactly how that happened.

More than 140 firefighters will continue to work at the Avelene fire Friday, working on firelines and putting out hotspots.

Even though temperatures flirted with triple digits in the area Thursday, fire crews caught a break as the wind stayed pretty calm all day, officials said.  Containment on the Avelene Fire is expected by 9 p.m. Friday.

Earlier in the week, the Avelene fire was such a concern that Boise County sheriff’s officials contacted at least 60 homeowners about a voluntary evacuation, concentrating their efforts on houses on Turner Road, Big Springs Road and Clear Creek Drive — those closest to the fire.

No structures were burned in the blaze and no more evacuations are in effect. Public access on Grimes Creek Road is available, but fire officials are asking people to avoid the area if possible to allow fire crews access.