The mother of one of three Alta High School students killed in a fiery crash just over one year ago is seeking more than $1 million from Salt Lake County.

In a claim submitted to the county by her attorney, Cecilia Castaneda claims the county was negligent in designing, constructing and maintaining Dimple Dell Road in the area where the teenagers were killed around 1:10 p.m. Sept. 29, 1989. The accident occurred when a car driven by 16-year-old Heather Bledsoe skidded about 250 feet before slamming into a portable concrete barrier near 2300 East.Salt Lake County sheriff's investigators estimated the car, owned by Bledsoe's father, was traveling about 80 mph. Blood tests showed the driver's blood-alcohol was above the legal limit and she pleaded guilty in February to three counts of automobile homicide in the deaths of the car's three passengers: Tom Duke, 18; Justin B. Brown, 16; and Giobert Castaneda, 16.

The claim has been referred to the Salt Lake County attorney's office.