dam of the day bonneville dam duffy dessalines september 27, 2001
TRANSCRIPT
Dam of the DayDam of the DayBonneville DamBonneville Dam
Duffy DessalinesDuffy Dessalines
September 27, 2001September 27, 2001
Bonneville DamBonneville DamLocationLocation
Dam Dam structures at structures at the Columbia the Columbia River between River between Oregon and Oregon and Washington.Washington.
On Columbia On Columbia River about 40 River about 40 miles upstream miles upstream from Portland, from Portland, Oregon Oregon
Bonneville DamBonneville DamHistoryHistory
Built by the United States Army Corps of Engineers in 1933-1937Built by the United States Army Corps of Engineers in 1933-1937
Bonneville DamBonneville DamHistoryHistory
Bonneville DamBonneville DamHistoryHistory
Bonneville DamBonneville DamHistoryHistory
Bonneville DamBonneville DamHistoryHistory
Bonneville DamBonneville DamHistoryHistory
Bonneville DamBonneville DamPrimary FunctionsPrimary Functions
Electrical Electrical Power Power GenerationGeneration energy energy
production a production a is over 1 is over 1 million million kilowattskilowatts
Bonneville DamBonneville DamPrimary FunctionsPrimary Functions
Electrical Electrical Power Power GeneratioGenerationn enough enough
to power to power half a half a million million homes homes for a year for a year
Bonneville DamBonneville DamPrimary FunctionsPrimary Functions
River navigationRiver navigation
Bonneville DamBonneville DamPrimary FunctionsPrimary Functions
RecreationRecreation
Bonneville DamBonneville DamPrimary FunctionsPrimary Functions
FishingFishing
FactsFactsFirst Powerhouse (1933-First Powerhouse (1933-
37)37) 18 gates over a 18 gates over a
length of 1,450 ftlength of 1,450 ft Dam: Dam:
1,027 ft long 1,027 ft long 77 feet high77 feet high
10 generators 10 generators nominal total output nominal total output
capacity of 526.7 MWcapacity of 526.7 MW Overload capacity Overload capacity
577 MW.577 MW.
FactsFactsSecond Powerhouse Second Powerhouse
(1974-82)(1974-82) DamDam 986 ft long 986 ft long 77 feet high77 feet high 8 generators (plus 8 generators (plus
two at fish ladders) two at fish ladders) nominal total nominal total
generating capacity generating capacity of 558.2 MW; of 558.2 MW;
Overload capacity Overload capacity 612 MW. 612 MW.
FactsFactsBonneville LockBonneville Lock
Constructed from Constructed from 1987 to 1993 at a 1987 to 1993 at a cost of $341 millioncost of $341 million
85 ft wide85 ft wide 676 ft long676 ft long Transit time is Transit time is
approx. 30 min. approx. 30 min. Replaced earlier Replaced earlier
smaller lock built smaller lock built 1938. 1938.
FactsFactsLake BonnevilleLake Bonneville
77 km (48 mi) long reservoir on the Columbia 77 km (48 mi) long reservoir on the Columbia River created by Bonneville DamRiver created by Bonneville Dam
FactsFactsLake BonnevilleLake Bonneville
77 km (48 mi) long reservoir on the Columbia 77 km (48 mi) long reservoir on the Columbia River created by Bonneville DamRiver created by Bonneville Dam
FactsFactsLake BonnevilleLake Bonneville
77 km (48 mi) long reservoir on the Columbia River created by Bonneville Dam77 km (48 mi) long reservoir on the Columbia River created by Bonneville Dam
http://www.youtube.com/watch?v=ekpmCV5ZZU8&feature=player_embedded http://www.youtube.com/watch?v=ekpmCV5ZZU8&feature=player_embedded
Environmental and social Environmental and social implicationsimplications
California Sea Lions are California Sea Lions are also attracted to the large also attracted to the large number of fish and are number of fish and are often seen often seen around the base of the dam around the base of the dam
during the spawning season. during the spawning season. By 2006, the growing By 2006, the growing
number of crafty sea lions number of crafty sea lions and their impact on the and their impact on the salmon population salmon population Big concerns among Army Big concerns among Army
Corps of Engineers and Corps of Engineers and environmentalists environmentalists
Environmental and social Environmental and social implicationsimplications
California Sea Lions are California Sea Lions are also attracted to the large also attracted to the large number of fish and are number of fish and are often seen often seen around the base of the dam around the base of the dam
during the spawning season. during the spawning season. By 2006, the growing By 2006, the growing
number of crafty sea lions number of crafty sea lions and their impact on the and their impact on the salmon population salmon population Big concerns among Army Big concerns among Army
Corps of Engineers and Corps of Engineers and environmentalists environmentalists
Environmental and social Environmental and social implicationsimplications
Solution: Solution: States apply for permit to kill California Sea LionsStates apply for permit to kill California Sea Lions
Environmental and social Environmental and social implicationsimplications
Solution: Solution: States apply for permit to kill California Sea LionsStates apply for permit to kill California Sea Lions
Environmental and social Environmental and social implicationsimplications
Should we kill Should we kill the crafty sea the crafty sea lions?lions?
Should we let Should we let them eat all the them eat all the salmons?salmons?
How to How to balance?balance?
Environmental and social Environmental and social implicationsimplications
Solution: Solution: a custom- built “capture cage” to temporarily sequester the California Sea Lions California Sea Lions
Environmental and social Environmental and social implicationsimplications
Fishermen: Fishermen:
Environmental and social Environmental and social implicationsimplications
The Bonneville Dam The Bonneville Dam blocked the migration of blocked the migration of white sturgeon to their white sturgeon to their upstream spawning areas.upstream spawning areas.
Sturgeon still spawn in Sturgeon still spawn in the area below the dam the area below the dam and the lower Columbia and the lower Columbia RiverRiver
Small very depressed Small very depressed populations of white populations of white sturgeon persist in the sturgeon persist in the various reservoirs various reservoirs upstream.upstream.
Questions???Questions???
How to find the right balance?How to find the right balance?