A local state of emergency has been declared in Abbotsford's Glen Valley, where officials are now delivering evacuation orders to 17 homes on River Road near Bradner Road due to the rising Fraser River.

The orders comes after three homes in Chilliwack were ordered evacuated Thursday night and two rural roads in Langley were closed earlier due to flooding.

Experts predict the Fraser River will continue to rise through the weekend and possibly into next week.

The 12 resident of the three homes in the Carey Point area of Chilliwack were ordered evacuated on Thursday night as officials calculated the river was about to spill over a nearby berm, flooding the properties.

The B.C. River Forecast Centre is predicting the river will peak Sunday or Monday at 6.75 metres at the Mission gauge.

But if the rain expected Friday and Saturday is heavy, then the Fraser River could remain high for a couple of days and could peak again at higher levels later next week.

Evacuation alerts for more than 200 homes in low-lying area outside of the dikes in Hope, Chilliwack, Abbotsford, Langley and Barnston will likely remain in effect until the river subsides.

In Langley 208th at Allard Crescent and 264th at River Road were both closed due to flooding on Friday.

City staff in Port Coquitlam have been door-to-door, handing out flood preparedness materials to 17 properties located outside the dike.

Port Coquitlam's dikes were raised in 2007, but civic officials are keeping a close watch, the city said in a news release.

Flooding threatens Barnston Island herbs

Peter Hoffman owns and operates Barnston Island Herbs on the island in the middle of the river in Metro Vancouver and has lived and worked there for 30 years.

The island, 40 kilometres east of Vancouver, lies between Pitt Meadows and Surrey and is home to a thriving farming community and a reserve of the Katzie First Nation.

He said if the river keeps rising and the alert is hiked to an evacuation order, he'll lose at least a month's production of the high-end herbs and edible flowers he sells mainly to Vancouver restaurants and hotels.

Rising river waters could flood the access road to his business and would put the ferry between the island and the mainland out of service.

Even if his business property isn't affected by the flood, cutting him off from his customers will have an impact on his bottom line, says Hoffman.

"There's only so much you can do," he said. "We're busy as it is. So (we're) trying to put contingencies in place. I'm going to start moving things up to higher ground," he said in an interview.

Hoffman, who lives on the island with his wife and son, said the family has been through a similar experience before, though the flooding never happened. But if his business were wiped out this time, he said he'd have some decisions to make.

"If it came to a flood stage, we'd have to rebuild and I don't know if I'd want to rebuild it here because of a continuing problem with flooding."

North Okanagan flooding concerns

Elsewhere, evacuation alerts are issued for properties from Mara Lake to Sugar Lake, on the Shuswap River north of Vernon, and a boil water notice is in effect for about 150 homes in the Enderby area, due to possible groundwater contamination as North Okanagan waterways continue to surge.

Alan Hobler, B.C. Parks spokesman for the Thompson District near Kamloops, said two campsites and two boat launches have already flooded, restricting boaters.

"My main concern is that because the water level is so high it's actually into the trees and it's causing a lot of debris to float into the (Shuswap) Lake so there's definitely a navigational hazard," Hobler said.

"We're strongly discouraging people from going onto Shuswap Lake. . . It's above the beaches and it's inundating the forests."