SURFACE WATER SUPFLY of the UNITED STATEP
SURFACE WATER SUPFLY of the UNITED STATEP
SURFACE WATER SUPFLY of the UNITED STATEP
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36<br />
JAMES RIVER BASIN<br />
Rockflsh River hear Qreenfleld, Va.<br />
j.- Water-stage recorder, lat. 37°52', long. 78°49', at bridge or Stata Highway<br />
2fc miles downstream from confluence <strong>of</strong> North and Soutji Porks .ajtf 4f miles south<br />
<strong>of</strong> GreenTleld, Kelson County. Datum <strong>of</strong> gage Is 530.29 feet above mem sea' level,<br />
datum <strong>of</strong> 1928, Culpeper supplementary adjustment <strong>of</strong> 1943.<br />
Drainage area.- 96 square miles.<br />
ds available.- April 1943 to September 1945.<br />
- raxlmum discharge during year, .4,780 second-feet Sept. 18 (gri?e height, 11.7<br />
' minimum, 7 second-feet July 12 (gage height, 1.30 feet).<br />
1943-45: Ibxlmum discharge, 13,700 second-feet Sept. 19, 1944 (gf«» height, 17.2<br />
feet), from rating curve extended above 8,500 second-feet on basis <strong>of</strong> slope-area<br />
determinations at gage heights 17.2 and 23.4 feet and peak run<strong>of</strong>f comparison with<br />
nearby stations; minimum, 3.0 second-feet July 30, 1944 (gage height, 1.62 feet).<br />
Flood in October 1942 reached a stage <strong>of</strong> 23.4 feet, from Jloodmarts (discharge,<br />
about 30,000 second-feet).<br />
.- Records good except those below 20 second-feet and those for period <strong>of</strong> Ice<br />
effect, which are fair.<br />
DW<br />
1<br />
2<br />
3<br />
4 5<br />
6<br />
7 89<br />
10<br />
11<br />
12<br />
13<br />
14<br />
15<br />
> IB<br />
17<br />
IS<br />
19<br />
20<br />
21<br />
22<br />
23<br />
24<br />
25<br />
26<br />
27<br />
26<br />
29<br />
30<br />
31<br />
Oct.<br />
154<br />
189<br />
116<br />
106<br />
101<br />
96<br />
88<br />
88<br />
78<br />
73<br />
71<br />
68<br />
78<br />
82<br />
67<br />
63<br />
63<br />
60<br />
67<br />
610<br />
844<br />
450<br />
310<br />
238<br />
201<br />
170<br />
145<br />
' 130<br />
117<br />
108<br />
108<br />
NOT.<br />
Dating table, water year 1944-45, except period <strong>of</strong> loe effect.<br />
(gage height, In feet, and discharge, in aecond-feet)<br />
(Sbifting-oontrol method used Sept. 21-50)<br />
1.3<br />
1.4<br />
2.0<br />
2.6<br />
7<br />
12<br />
IS<br />
88<br />
160<br />
3.0<br />
4.0<br />
6.0<br />
6,0<br />
7.0<br />
238<br />
430<br />
600<br />
940<br />
1,1380<br />
8.0 1,770<br />
9.0 2,400<br />
10.0 3,160<br />
Discharge, In second-feet, water year October 1944 to September 1946<br />
99<br />
96<br />
98<br />
91<br />
87<br />
88<br />
80<br />
78<br />
77<br />
80<br />
74<br />
71<br />
70<br />
68<br />
68<br />
67<br />
64<br />
63<br />
61<br />
67<br />
63<br />
58<br />
58<br />
67<br />
56<br />
54<br />
94<br />
106<br />
85<br />
94<br />
»**<br />
.Dec.<br />
84<br />
78<br />
74<br />
73<br />
71<br />
71<br />
70<br />
249<br />
230<br />
170<br />
196<br />
230<br />
170<br />
' 146<br />
130<br />
184<br />
116<br />
112<br />
106<br />
96<br />
as<br />
94<br />
89<br />
91<br />
91<br />
96<br />
94<br />
110<br />
108<br />
101<br />
101<br />
Jan.<br />
October ..........................<br />
December .........................<br />
Calendar year 1944 ............<br />
864<br />
265<br />
882<br />
80S<br />
180<br />
158<br />
174<br />
178<br />
154<br />
139<br />
126<br />
1.20<br />
146<br />
161<br />
146<br />
156<br />
146<br />
144<br />
144<br />
' 144<br />
136<br />
140<br />
. 154<br />
148<br />
140<br />
January ..........................<br />
Fftbmarv wowary. ........................<br />
Ai>ril<br />
May.... ..........................<br />
June .............................<br />
July .............................<br />
August ...........................<br />
September ........................<br />
Hater year 1944-45 ............<br />
155<br />
184<br />
120<br />
US<br />
106<br />
98<br />
Feb.<br />
b90<br />
b85<br />
b85<br />
b90<br />
88<br />
86<br />
84<br />
88<br />
31<br />
80<br />
78<br />
76<br />
150<br />
140<br />
117<br />
112<br />
187<br />
189<br />
122<br />
117<br />
133<br />
230<br />
310<br />
866<br />
882<br />
206<br />
187<br />
174<br />
_<br />
m j<br />
"<br />
Soo<strong>of</strong>td-<br />
6,086<br />
8,868<br />
.3,«78<br />
45,641. C<br />
4,758<br />
3 nee t too<br />
5,443<br />
S vfyn<br />
fO\nj<br />
5,477<br />
1,511<br />
1,657<br />
1,383<br />
7,814<br />
42,047<br />
Mar.<br />
167<br />
146<br />
139<br />
132<br />
148<br />
176<br />
157<br />
146<br />
139<br />
133<br />
134<br />
117<br />
112<br />
-M6<br />
106<br />
101<br />
99<br />
101<br />
94<br />
89<br />
98<br />
94<br />
89<br />
86<br />
32<br />
81<br />
85<br />
80<br />
.77<br />
?8<br />
< TO<br />
Apr.<br />
344<br />
106<br />
849<br />
.6,670<br />
866<br />
310<br />
ITS<br />
320<br />
847<br />
88<br />
291<br />
106<br />
5,010<br />
5,010<br />
73<br />
82<br />
94<br />
34<br />
88<br />
78<br />
75<br />
74<br />
74<br />
70<br />
70<br />
70<br />
17<br />
64<br />
11<br />
68<br />
108<br />
127<br />
99<br />
95<br />
92<br />
85<br />
SI<br />
96'<br />
869<br />
380<br />
8110<br />
19E<br />
166<br />
144<br />
*<br />
« Winter discharge measurement made on tale day.<br />
b Stage-discharge relation affeetanl by los. '<br />
Tima basis i Eastern war time up to 2 a.m.', Sept. 30, 1946j<br />
TO oonwert war tijne to ataftdara tlae, suktraot 1 hour. . '<br />
!<br />
May<br />
124<br />
112<br />
129<br />
126<br />
' 116<br />
N<br />
103<br />
96<br />
86 92<br />
87<br />
88 W<br />
. 74<br />
W)<br />
67<br />
146<br />
847<br />
203<br />
157<br />
'£MU*il~<br />
57<br />
54<br />
TO<br />
130<br />
116<br />
103<br />
91<br />
84<br />
9,9<br />
Tfm &x<br />
TS<br />
78 '<br />
1 64<br />
IT<br />
8<br />
16<br />
aa<br />
8 .<br />
June<br />
32<br />
81<br />
88<br />
71<br />
'*<br />
64<br />
61<br />
64<br />
67<br />
71<br />
71<br />
59<br />
56<br />
" AT 4$<br />
43<br />
38<br />
43<br />
66<br />
56<br />
43<br />
37<br />
33<br />
30<br />
28<br />
187<br />
184<br />
_<br />
M| ' j, J.7<br />
,'-'<br />
* : -"-><br />
Mean<br />
*3»<br />
183<br />
1SS<br />
iS<br />
& self<br />
-' £60<br />
. : -ia*.<br />
July<br />
. 16<br />
14<br />
. 14<br />
13<br />
16<br />
34<br />
14<br />
18<br />
10<br />
10<br />
9 S<br />
V S<br />
a* 6<br />
68<br />
48<br />
24<br />
80<br />
45<br />
33<br />
26<br />
46<br />
835<br />
64<br />
89<br />
-,*w.<br />
.4 '.JI&<br />
' ife<br />
881<br />
' Jt8$<br />
'<br />
; " r .46$<br />
. . S.7J_<br />
- . v >iia*=?'<br />
38<br />
' 88<br />
41<br />
42<br />
38<br />
Sept.<br />
14<br />
14<br />
14<br />
IS<br />
IS<br />
17<br />
34<br />
26<br />
1<br />
86<br />
21<br />
,',. Tt.1<br />
IS<br />
-" 86'<br />
-4"?8<br />
3,010<br />
860<br />
470<br />
89 840<br />
26 238<br />
86<br />
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