U. S. Army Corps of Engineers Wilmington District Annual Report of Reservoir Regulation Activities For Fiscal Year 1999 Coastal, Hydrology and Hydraulics Section


FOR FISCAL YEAR 1999 WILMINGTON DISTRICT



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FOR FISCAL YEAR 1999

WILMINGTON DISTRICT











OCT

NOV

DEC

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

YEARLY

















































B. EVERETT JORDAN DAM AND LAKE













CAPE FEAR RIVER BASIN



































































INFLOW (c.f.s.)











































Period of record avg.











































(Jan 1929 - Dec 1993)




904

1075

1562

2608

3058

3023

2264

1331

1056

976

878

830

1623

Fiscal Year 1999




239

231

703

3342

1294

1597

1335

996

214

366

387

6709

1445

















































OUTFLOW (c.f.s.)











































Maximum daily




606

504

3465

6777

16564

2763

12760

6341

555

581

644

12103

16564

Minimum daily




192

333

125

129

393

393

393

264

196

292

216

202

125

















































RAINFALL (inches*)











































Period of record normal











































(Jan 1908 - Dec 1993)




3.15

2.88

3.38

3.67

3.52

3.95

3.42

3.80

3.96

4.91

4.56

3.52

44.72

Fiscal Year 1999




1.31

1.77

4.58

5.88

6.15

2.72

4.32

1.86

2.21

3.87

3.33

15.92

53.92

















































RUNOFF (inches*)











































Period of record normal











































(Jan 1929 - Dec 1993)




0.62

0.71

1.07

1.78

1.88

2.06

1.49

0.91

0.70

0.67

0.60

0.55

13.04

Fiscal Year




0.16

0.15

0.48

2.28

0.81

1.09

0.88

0.68

0.14

0.25

0.26

4.43

11.61

















































RESERVOIR ELEVATIONS (feet, m.s.l.)








































End of month




211.65

210.58

212.92

219.95

216.23

216.65

217.57

216.02

214.76

214.04

213.46

223.32

-------

Guide Curve at end of

month

216.00

216.00

216.00

216.00

216.00

216.00

216.00

216.00

216.00

216.00

216.00

216.00

--------

Maximum elevation




213.20

211.65

212.95

222.25

219.91

218.10

218.06

218.70

216.02

214.76

214.04

223.62

223.62

Minimum elevation




211.65

210.55

210.30

212.91

216.09

215.89

216.10

216.02

214.76

214.04

212.54

213.27

210.30

















































FLOOD STORAGE UTILIZED (%)

0.0

0.0

0.0

18.5

11.1

5.7

5.6

7.4

0.1

0.0

0.0

23.3




















































FISCAL YEAR BENEFITS











































Flood Control

$11,436,100








































Water Supply

$203,498








































NOTE: Rainfall and runoff amounts are watershed averages

TABLE 5

SUMMARY OF RESERVOIR CONDITIONS AND PERFORMANCE

FOR FISCAL YEAR 1999

WILMINGTON DISTRICT










OCT

NOV

DEC

JAN

FEB

MAR

APR

MAY

JUN

JUL

AUG

SEP

YEARLY

















































W. KERR SCOTT DAM AND RESERVOIR













YADKIN-PEE DEE RIVER BASIN



































































INFLOW (c.f.s.)











































Period of record avg.











































(Jan 1940 - Dec 1993)




483

496

530

616

670

803

747

675

555

495

507

450

585

Fiscal Year 1999




310

264

356

593

506

495

428

389

265

465

244

219

378

















































OUTFLOW (c.f.s.)











































Maximum daily




600

281

757

1712

761

845

813

903

474

1471

306

268

1712

Minimum daily




278

237

237

259

281

316

281

234

197

234

231

183

183

















































RAINFALL (inches*)











































Period of record normal











































(Jan 1940 - Dec 1993)




4.03

3.82

3.82

3.70

3.98

5.22

4.31

4.91

4.73

5.08

5.27

4.55

53.42

Fiscal Year 1999




3.48

1.48

3.28

5.55

6.18

3.53

4.54

4.55

4.06

5.59

2.29

4.02

48.55

















































RUNOFF (inches*)











































Period of record normal











































(Jan 1940 - Dec 1993)




1.52

1.51

1.66

1.94

1.90

2.52

2.27

2.12

1.68

1.55

1.59

1.37

21.63

Fiscal Year 1999




0.97

0.80

1.12

1.86

1.44

1.55

1.30

1.22

0.81

1.46

0.77

0.67

13.97

















































RESERVOIR ELEVATIONS (feet, m.s.l.)








































End of month




1029.21

1028.94

1030.13

1030.00

1030.20

1030.09

1031.39

1030.02

1030.18

1030.14

1028.84

1028.78

-----------

Guide Curve at end of

month

1030.00

1030.00

1030.00

1030.00

1030.00

1030.00

1030.00

1030.00

1030.00

1030.00

1030.00

1030.00

-----------

Maximum elevation




1030.33

1029.53

1031.29

1033.81

1030.73

1030.75

1031.49

1031.66

1030.37

1031.77

1030.14

1028.83

1031.77

Minimum elevation




1028.31

1028.94

1028.68

1030.03

1029.98

1029.97

1029.95

1030.01

1028.81

1029.90

1027.79

1026.33

1026.33

















































FLOOD STORAGE UTILIZED (%)

0.42

0.0

2.16

5.67

1.28

1.32

2.44

2.53

0.65

2.83

0.25

0

5.67

















































FISCAL YEAR BENEFITS











































Flood Control

$292,000








































Water Supply

$132,564








































NOTE: Rainfall and runoff amounts are watershed averages

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