before the ferc, application - Alaska Resources Library

More documents

Recommendations

Info

- - r- ) - ..... LIST OF FIGURES Figure E.l.l - Location of the Proposed Susitna Hydroelectric Project Figure E.1.2 - Vicinities of the Proposed Dam Sites, Susitna Hydroelectric Project Figure E.l.3 - Upper Susitna River Basin Figure E.l.4 Susitna River Drainage Basin ;
.... - - - , I ,.,.. 1 GENERAL DESCRIPTION OF THE LOCALE 1.1 - General Setting The locatiofl. of the proposed Susitna Hydroelectric Project is within the east-to-west-flowing section of the Susitna River approximately 140 miles (230 km) north-northeast of Anchorage, Alaska, and 110 miles (180 km) south-southwest of Fairbanks, Alaska (Figure E.1.1). Two proposed dams would generate electrical power for the rail belt region of Alaska; that is, the corridor surrounding the Alaska Railroad from Seward and Anchorage to Fairbanks. The two proposed damsites, Watana and Devil Canyon, are 152 (246 km) and 184 (300 km) river miles upstream from the river's mouth at Cook Inlet. The nearest settlements (Gold Creek, Canyon, Chulitna) are along the Alaska Railroad, .approximately 12 miles (18 km) from Devil Canyon. The project site is within the south-central region of Alaska. This region is geographically bounded by the Alaska Range to the north and west, the Wrangell Mountains to the east, and the Chugach Mountains and the Gulf of Al aska to the south. Topography is varied and i ncl udes rugged, mountainous terrain; plateaus; and broad river valleys. Mount McKinley, the state's single most significant geographical feature, is located on the region's northwest border. Denali National Park, Denali State Park, and the diversity of landscapes and resources offer a wide variety of recreational opportunities. Spruce-hemlock and spruce-hardwood forests, wetlands, and tundra are the predominant vegetative types. A wide variety of wildlife and fish species are present, including moose, car"ibou, bear, and salmon. Approximately 50 percent of Alaska's population lives in south-central Alaska. Anchorage is the state1s largest city with a civilian popUlation in 1980 of 174,400. Fairbanks, north of the present site and outside south-central Alaska, is the state1s second largest urban center with a population of 30,000. The region's economy is based on support services, commercial fishing, mining, forestry, petroleum, and touri sm. South-central Alaska contains the most highly developed transportation system in the state interconnected by paved highways and grave1secondary roads. An extensive airport system ranging from the international 1eve1 to gravel stri ps and water bodies permit pl ane access into more remote areas. The Alaska Railroad and ferry systems also serve large portions of the region. Air quality in the region is good. All areas outside Anchorage and Fairbanks meet all the National Ambient Air Quality Standards. Thus, the area is classified as attainment, and any facility which exceeded threshold levels for pollutant emissions would be subject to the requirements of the Prevention of Significant Deterioration program under the Clean Air Act. E-1-1
Page 3: Prepared by: iiJ ALASKA RESOURCES L
Page 9: - - --. - 1.2 - Susitna Basin grani
Page 13: - - - ,.... ...... .... I - - - 1.2
Page 16: - ..... -. - - - - GLOSSARY Alluvia
Page 21: -. S'USITNA HYDROELECTRIC PROJECT .
Page 27 and 28: .- E.2.50 Watana Fi xed Cone Valve
Page 30: - E. 2. 59 E.2.60 E.2.61 E.2.62 E.2
Page 37: 'II"'" - ,- LIST OF PHOTOGRAPHS E.2
Page 40 and 41: - "i' I 2 - BASELINE DESCRIPTION Th
Page 45 and 46: 2.1 - Susitna River Morphology The
Page 47: 2.2 - Susitna River Water Quantity
Page 51 and 52: 2.2 - Susitna River Water Quantity
Page 53 and 54: 2.2 - Susitna River Water Quantity
Page 55 and 56: 2.3 - Susitna River Water Quality U
Page 57:
I 2.3 - Susitna River Water Quality
Page 60 and 61:
- - - - ...... 2.3 - Susitna River
Page 63:
2.3 - Susitna River Water Quality S
Page 66:
.... ,- - 2.3 - Susitna River Water
Page 69 and 70:
2.3 - Susitna River Water Quality D
Page 71:
2.3 - Susitna River Water Quality c
Page 76:
..... - 1"""1 I - 2.4 - Baseline Gr
Page 81 and 82:
2.6 - Existing Instream Flow Uses s
Page 85 and 86:
2.6 - Existing Instream Flow Uses C
Page 87:
2.6 - Existing Instream Flow Uses u
Page 92 and 93:
..... ..... ! - ..... 3 - PROJECT O
Page 94:
3.3 - Pre-Project Flows 32-year rec
Page 97:
3.6 - Fishery and Instream Flow Imp
Page 101 and 102:
3.8 - Maximum Drawdown Selection Th
Page 103:
4.1 - Watana Development Floods gre
Page 111:
4.1 - Watana Development Borrow Sit
Page 115 and 116:
4.1 - Watana Development 4.1.2 - Im
Page 117:
4.1 - Watana Development year avera
Page 123 and 124:
4.1 - Watana Development In spri ng
Page 125 and 126:
4.1 - Watana Development (11.) Ice
Page 128 and 129:
- r-. ! - """ .- """ 4.1 - Watana D
Page 132 and 133:
- - .... - 4.1 - Watana Development
Page 137:
4.1 - Watana Development There will
Page 143:
4.1 - Watana Development During Jul
Page 155:
4.1 - Watana Development Based on t
Page 161 and 162:
4.1 - Watana OeveTopnent the lce co
Page 163:
4.1 - Watana Development at a flow
Page 173:
4.1 - Watana Development and waves
Page 180 and 181:
-- ,.... - .... - 4.2 - Devil Canyo
Page 182 and 183:
4.2 - Devil Canyon Development (v)
Page 184 and 185:
-, -- .... - 4.2 - Devil Canyon Dev
Page 186 and 187:
-. - - - ,... 4.2 - Devil Canyon De
Page 188 and 189:
"""' """ ,- I""" I - - - - - 4.2 -
Page 190:
,.,.. 4.2 - Devil Canyon Developmen
Page 193:
4.2 - Devil Canyon Development adju
Page 198:
.- r i - I""'" I 4.2 - Devil Canyon
Page 203 and 204:
4.2 - Devil Canyon Development The
Page 205 and 206:
4.2 - Devil Canyon Development and
Page 207 and 208:
4.2 - Devil Canyon Development - Ta
Page 209:
4.2 - Devil Canyon Development effl
Page 212 and 213:
- - 4.3 - Access Plan A few borrow
Page 214:
- - I""" I - 4.4 - Transmission Cor
Page 218 and 219:
- ,...,. - - ,PM 6 - MITIGATION, EN
Page 220 and 221:
- - - - - - - .- -- - 6.2 - Mitigat
Page 222 and 223:
- - 6.3 - Mitigation - Watana Impou
Page 224 and 225:
- - - 6.4 - Mitigation - Watana Ope
Page 226:
- - - - - 6.8 - Mitigation - Access
Page 233:
1982. Susitna Hydroelectric Project
Page 239:
u.s. Army Corps of Engineers. 1975.
Page 244 and 245:
1 1 J J ] 1 ) I TABLE E.2.4 (Page 2
Page 246 and 247:
OJ ) -) J 1 t ) 1 --1 J -J J TABLE
Page 248 and 249:
I 1 -) ) 1 1 ) J I - -1 ] 1 TABLE E
Page 250:
J J } 1 ) } 1 1 1 J 1 ) J 1 J J J T
Page 256:
Parameters(1) TABLE E.2.16: DETECTI
Page 259 and 260:
TABLE E.2.18: LOCATION OF OPEN LEAD
Page 261:
l I I TABLE E.2.20: SUSPENDED SEDIM
Page 266 and 267:
- Lake Deadman Lake BIg Lake Unname
Page 268 and 269:
..... - ""'" - TABLE E.2.25 (Page 2
Page 271 and 272:
TABLE E.2.28: SUMMARY OF SURFACE WA
Page 273 and 274:
River Mil e Locat ion 1 19 49 61 12
Page 277 and 278:
TABLE E.2.34: MONTHLY FLOW REQUIREM
Page 279:
12/16/82 TABLE E.2.36: MINIMUM DOWN
Page 286 and 287:
j 'j ) ) j j 1 J J j J ] ) J } ) J
Page 289:
TABLE E.2.46: SUNSHINE POST-PROJECT
Page 296:
TABLE E.2.52: WATANA POST-PROJECT M
Page 300 and 301:
TABLE E.2.56: SUNSHINE POST-PROJECT
Page 302:
TABLE E.2.50: WATANA FIXED CONE VAL
show all

before the ferc, application - Alaska Resources Library

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?