HISTORICAL NEWS SEARCH - Government of British Columbia

HISTORICAL NEWS SEARCH - Government of British Columbia HISTORICAL NEWS SEARCH - Government of British Columbia

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usinesses at the corner of Abbott and Anderson Drives. The front of one building was blown across the street and the other walls were blown out. One car across the street was flipped. Investigations from the fire commissioner’s office found that the cracked pipe allowed a small amount of gas seepage, saturating the ground. The gas traveled along the natural gas line and got inside the building through a crack. ---------------------------------- *1) The homes, which had been established two years earlier, were located on an eroding slope above an access road overlooking the Fraser River. The trailers were part of a 40-year old, six-lot subdivision in an area not deemed sensitive and hazardous as outlined by the Quesnel Official Community Plan (Quesnel Cariboo Observer, April 2, 1997). *2) Before the last ice age, an inland lake covered the area. Resulting residual water pockets and subsurface running water played havoc with surface construction (Quesnel Cariboo Observer, April 9, 1997). May 13-19, 1997 Event type: Spring runoff flooding. Precipitation: Source: The Province, May 15 and 20, 1997; Times Colonist, May 16, 1997; The Vancouver Sun, May 20, 1997; The Interior News, May 14, 21 and 28, 1997; January 14, 1998; Ministry of Environment files; PEP Emergency Coordination Centre Flood Sitrep, May 19, 1997; Letter Ebenezer Flats Resident’s Association July 21, 1997 to The Board of the Regional District of Bulkley-Nechako; Letter Len Barak, Deputy Dyke Inspector. In the middle of May, a hot spell caused snow to melt at higher elevations and flooding. Unusually warm temperatures that melted snow faster than normal caused the heavy runoff. After floodwaters went over its tracks at several locations around Houston, CN Rail closed its northern main line. On May 13, water levels on the Bulkley River jumped 30 cm. CN Rail closed all rail traffic through the town of Houston. On the evening of May 13, the Bulkley River rose threateningly high at the overpass west of town. The river was rising at about 1 in. (2.5 cm) an hour. Construction started on a dike in an attempt to keep the Bulkley River from flooding the town. A dike, 2.5-km long and 2.5 m high was holding back 500 ac. (200 ha) of water at least 2 m deep. By the evening of May 14, Buck Creek was also rising rapidly and Henry Creek was flooding the bottom of East Valley Road, surrounding nearby homes. A number of residents left their homes. On May 14, Houston high school students were excused from classes to fill sandbags. Some 150,000 sandbags had been used, with more on the way. At about 11 a.m., the gas main in town broke and four blocks had to be temporally evacuated. At 5 p.m., the new dike finally tied in with the existing one. The river was threatening to top another dike and had to be reinforced. On May 16, a second dike was started on East Valley Road. By evening, the railway bridge east of Houston, now 6 in. (15 cm) under water was acting like a dam, pushing water back into the dike. CN Rail agreed to have large culverts placed east of the bridge, allowing water to escape. A series of culverts installed by CN Rail through the rail bed to the east of its bridge behind Riverside Gardens relieved some of the water pressure on the East Valley Road dyke. On May 17, Attorney General Ujjal Dosanjh toured the area. Near Houston, 21 families evacuated their homes. By early May 19, the Bulkley River at Houston was down 15 cm from its highest point and dropping. The cost of this emergency was estimated at more than $2.5 million. Floodwaters threatened several low-lying spots in Smithers and Telkwa. The village of Telkwa had some dikes in place at the end of Cottonwood and Elm streets. At Eddy Park, a sandbag dike had been place at the end of April. Other locations threatened by flooding included Quick Station and the Walcott area. Near Smithers, areas flooded were three successive river terraces on the right bank (downstream direction) of the Bulkley River from the Smithers bridge downstream to the confluence with Canyon Creek. The opposite bank is highly unstable in places where a house has been condemned unsafe due to the mass wasting and erosion of its landmass adjacent to the river. The most acute flooding situation was on Ebenezer Flats, where more than 200 volunteers built a 400-m sandbag dike. *1) Early on May 16, the Bulkley River breached its banks adjacent to Columbia Road, flowing into low-lying yards and over roads. In the Columbia Street area, 12 ft. (3.6 m) or more of river shore was lost. This flood also washed away a large portion of the top end of Beaver Island, which acts as a protective mechanism from the river. On May 17, floodwaters working its way around the dike threatened residents on Kidd Road. Volunteers, forest fire and highway maintenance crews managed to put up another dike at Kidd Road. The four other potential areas of flood concern in Smithers, the Fall Fair Grounds, Riverside Park, areas around the bottom of Main Street and the sewage treatment plant on Dohler Flats were being watched. The town also kept 10,000 unfilled sandbags at hand. Around May 17, three families temporarily moved out of their 22 nd Avenue homes. Cooler weather on May 18-19 caused the Bulkley River’s water levels to drop. In Old Hazelton, the Gitanmax First Nations Community asked for provincial assistance of the ‘Ksan Historic Indian village and museum. The First Nations village of Glen Vowell also requested sandbags and assistance. Near Terrace, serious bank erosion occurred in the Mark Road area. The Thornhill area was threatened. A number of homes on Kitselas Road were temporarily cut off. 184

On May 18, the Fraser River caused minor flooding in the city of Prince George. Because of the increased water table levels some small businesses at 2 nd and 3 rd Avenue were affected by ground water seepage. Local authorities blocked access to Paddlewheel Park in South Fort George. Damage at Prince George was estimated at $1 million. At Stoner, a slide on Highway 97 South, and no immediate detour available, threatened to sever the highway. The required berm and drain work was estimated in excess of $100,000. On May 19, water levels in the Fraser River at Prince George were slowly dropping, but the Nechako River was rising. The Nechako and Stuart River systems continued to rise, though at a slower rate. Fraser Lake continued to rise to record highs and Burns Lake also continued to rise. High winds continued to erode Colleymount Road, threatening at least one residence. Francois Lake continued to rise causing concern about Nadina River to wash out a MoTH road used as an important industrial artery. At Fort Babine, a rising Babine River at Babine Lake threatened a large salmonoid enhancement project with 500,000 salmon fry. So far, 350,000-400,000 fry had been lost. The Salmon River, though dropping, threatened 3-5 homes. The Mud River damaged bridges and road accesses to four different ranches. On the Telachuk Road, 30 mi. (48 km) west of Prince George, road access was damaged and 3-5 homes reported flood damage. Near Fort St. James, Stewart (Stuart?) Lake was rising slowly causing minor local flooding. In Shelly, 20 km. east of Prince George, the flooding Fraser River caused the evacuation of nine families. At Foreman Flats, 10 km west of Prince George, floodwaters threatened 3-4 homes. Sandbagging had started here on the afternoon of May 17. On May 22, the side tributaries in the Central/Northeast Region remained high. The Chilako/Mud River had dropped on May 21 but the Nechako continued to rise slowly. The Nauteley River, a tributary into the Nechako River upstream of Vanderhoof was still quite high. The Fraser River at South Fort George (near Prince George city centre) started dropping slowly on May 21. Pre-freshet food protection projects and cost in the Northwest included: New Remo: bank repairs and raising dyke along the Zymagotitz River ($13,000); Telkwa: removal of logjam to modify river flows, due to high river levels unable to complete ($20,000); Lakelse: Granite Creek dyke repairs and riprap restoration ($30,000) ---------------------- *1) The Ebenezer Flats area is located approximately 7 km from downtown Smithers, on the east side of the Bulkley River. The area is accessed via Lower Viewmont Road. Local roads include Columbia Street and 22 nd Ave. The area is predominantly rural residential acreages of between 1-10 ac. in size and includes small intensive farms. Ebenezer Canadian Reformed School is also located in the neighbourhood with an enrolment of approximately 130 students and 10-15 staff and volunteers. The most recent flooding in the area occurred during the spring of 1976, June 17, 1986 and in 1993 a Christmas Day ice jam flood. Following the flooding that took place in mid May, the residents of Ebenezer Flats organised as a resident’s association. They agreed immediate attention was required in order to ensure permanent flood protection in the event of future flooding Early July 1997 Event type: Spring runoff flooding. Precipitation: Not applicable. Source: Ministry of Environment files; Geonorth Engineering Ltd.1998. Nechako River bank erosion study. Miworth and Prince George, B.C. During the spring freshet of 1997, river and lake levels in many regions were the highest they had been in 25 years. The following damage occurred and restoration cost: Lakelse: aggradation ($60,000); Dutch Valley: erosion and aggradation ($40,000); Telkwa ($10,000); Bulkley River: aggradation ($2,500); Sowchea Creek: log jam ($1,000); Nechako River: erosion ($10,000); Pingle Creek: erosion ($40,000); British Columbia’s Disaster Financial Assistance Program provided assistance to victims who sustained damage caused by the May 1 to June 27, 1997 flooding in the regional districts of Fraser Fort George, Kitimat-Stikine and Bulkley-Nechako. During May and June, subsequent high flows on the Lower Nechako River caused severe bank erosion at Miworth and Prince George, beyond any experienced in recent years. *1) The high flows during May and June, including 17 days when the flow exceeded 1,000 m 3 /s and a further 72 days when it exceeded 800 m 3 /s, caused continuous toe erosion and sloughing of the slope at Island Drive and Bergman Road. The erosion of the Nechako River continued “at an alarming rate.” By mid July, much of the Nechako River Park and Trail System in the City of Prince George was still under water. Though the assessment was not complete, the estimated cost to repair several bridges and paved portions of the trail that were damaged was between $50,000-75,000. A study by Geonorth Engineering Ltd. found that homes on Aspen Lane to be at risk in the event of one or two reoccurrence similar to the icejam of November 1996. They recommended the riverbank at this location to be revetted. As the homeowners most at risk along Island Park Drive did have space in which to relocate, this action was less expensive than revetting the river. Pingle Creek near Fort St. John eroded a section of bank downstream of Highway 97 and threatened several homes. Estimated cost for bank protection was $50,000. 185

On May 18, the Fraser River caused minor flooding in the city <strong>of</strong> Prince George. Because <strong>of</strong> the increased<br />

water table levels some small businesses at 2 nd and 3 rd Avenue were affected by ground water seepage. Local<br />

authorities blocked access to Paddlewheel Park in South Fort George. Damage at Prince George was estimated at $1<br />

million. At Stoner, a slide on Highway 97 South, and no immediate detour available, threatened to sever the highway.<br />

The required berm and drain work was estimated in excess <strong>of</strong> $100,000.<br />

On May 19, water levels in the Fraser River at Prince George were slowly dropping, but the Nechako River<br />

was rising. The Nechako and Stuart River systems continued to rise, though at a slower rate. Fraser Lake continued to<br />

rise to record highs and Burns Lake also continued to rise. High winds continued to erode Colleymount Road,<br />

threatening at least one residence. Francois Lake continued to rise causing concern about Nadina River to wash out a<br />

MoTH road used as an important industrial artery. At Fort Babine, a rising Babine River at Babine Lake threatened a<br />

large salmonoid enhancement project with 500,000 salmon fry. So far, 350,000-400,000 fry had been lost. The Salmon<br />

River, though dropping, threatened 3-5 homes.<br />

The Mud River damaged bridges and road accesses to four different ranches. On the Telachuk Road, 30 mi.<br />

(48 km) west <strong>of</strong> Prince George, road access was damaged and 3-5 homes reported flood damage. Near Fort St. James,<br />

Stewart (Stuart?) Lake was rising slowly causing minor local flooding.<br />

In Shelly, 20 km. east <strong>of</strong> Prince George, the flooding Fraser River caused the evacuation <strong>of</strong> nine families. At<br />

Foreman Flats, 10 km west <strong>of</strong> Prince George, floodwaters threatened 3-4 homes. Sandbagging had started here on the<br />

afternoon <strong>of</strong> May 17.<br />

On May 22, the side tributaries in the Central/Northeast Region remained high. The Chilako/Mud River had<br />

dropped on May 21 but the Nechako continued to rise slowly. The Nauteley River, a tributary into the Nechako River<br />

upstream <strong>of</strong> Vanderho<strong>of</strong> was still quite high. The Fraser River at South Fort George (near Prince George city centre)<br />

started dropping slowly on May 21.<br />

Pre-freshet food protection projects and cost in the Northwest included: New Remo: bank repairs and raising<br />

dyke along the Zymagotitz River ($13,000); Telkwa: removal <strong>of</strong> logjam to modify river flows, due to high river levels<br />

unable to complete ($20,000); Lakelse: Granite Creek dyke repairs and riprap restoration ($30,000)<br />

----------------------<br />

*1) The Ebenezer Flats area is located approximately 7 km from downtown Smithers, on the east side <strong>of</strong> the Bulkley<br />

River. The area is accessed via Lower Viewmont Road. Local roads include <strong>Columbia</strong> Street and 22 nd Ave. The area is<br />

predominantly rural residential acreages <strong>of</strong> between 1-10 ac. in size and includes small intensive farms. Ebenezer<br />

Canadian Reformed School is also located in the neighbourhood with an enrolment <strong>of</strong> approximately 130 students and<br />

10-15 staff and volunteers. The most recent flooding in the area occurred during the spring <strong>of</strong> 1976, June 17, 1986 and<br />

in 1993 a Christmas Day ice jam flood. Following the flooding that took place in mid May, the residents <strong>of</strong> Ebenezer<br />

Flats organised as a resident’s association. They agreed immediate attention was required in order to ensure permanent<br />

flood protection in the event <strong>of</strong> future flooding<br />

Early July 1997<br />

Event type: Spring run<strong>of</strong>f flooding.<br />

Precipitation: Not applicable.<br />

Source: Ministry <strong>of</strong> Environment files; Geonorth Engineering Ltd.1998. Nechako River bank erosion study. Miworth<br />

and Prince George, B.C.<br />

During the spring freshet <strong>of</strong> 1997, river and lake levels in many regions were the highest they had been in 25<br />

years. The following damage occurred and restoration cost: Lakelse: aggradation ($60,000); Dutch Valley: erosion and<br />

aggradation ($40,000); Telkwa ($10,000); Bulkley River: aggradation ($2,500); Sowchea Creek: log jam ($1,000);<br />

Nechako River: erosion ($10,000); Pingle Creek: erosion ($40,000);<br />

<strong>British</strong> <strong>Columbia</strong>’s Disaster Financial Assistance Program provided assistance to victims who sustained<br />

damage caused by the May 1 to June 27, 1997 flooding in the regional districts <strong>of</strong> Fraser Fort George, Kitimat-Stikine<br />

and Bulkley-Nechako.<br />

During May and June, subsequent high flows on the Lower Nechako River caused severe bank erosion at<br />

Miworth and Prince George, beyond any experienced in recent years. *1) The high flows during May and June,<br />

including 17 days when the flow exceeded 1,000 m 3 /s and a further 72 days when it exceeded 800 m 3 /s, caused<br />

continuous toe erosion and sloughing <strong>of</strong> the slope at Island Drive and Bergman Road. The erosion <strong>of</strong> the Nechako<br />

River continued “at an alarming rate.” By mid July, much <strong>of</strong> the Nechako River Park and Trail System in the City <strong>of</strong><br />

Prince George was still under water. Though the assessment was not complete, the estimated cost to repair several<br />

bridges and paved portions <strong>of</strong> the trail that were damaged was between $50,000-75,000.<br />

A study by Geonorth Engineering Ltd. found that homes on Aspen Lane to be at risk in the event <strong>of</strong> one or<br />

two reoccurrence similar to the icejam <strong>of</strong> November 1996. They recommended the riverbank at this location to be<br />

revetted. As the homeowners most at risk along Island Park Drive did have space in which to relocate, this action was<br />

less expensive than revetting the river.<br />

Pingle Creek near Fort St. John eroded a section <strong>of</strong> bank downstream <strong>of</strong> Highway 97 and threatened several<br />

homes. Estimated cost for bank protection was $50,000.<br />

185

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