Field Observations and Evaluations of Streambed Scour At Bridges
APPENDIX A:PIER SCOUR FIELD DATA
Table 24. Pier scour observations, continued.
Meaurement |
Site |
State |
Date |
Time |
Pier |
Upstream/ Downstream |
Pier Type |
Pier Shape |
Pier Width (m) |
Pier Length (m) |
Skew (deg) |
Velocity (m/s) |
Depth (m) |
Debris Effects |
Bed Material |
D16 (mm) |
D50 (mm) |
D84 (mm) |
D95 (mm) |
Grad-ation |
Scour Depth (m) |
Ac-curacy (m) |
246 |
27 |
MS |
5/1/1991 |
11:20 |
18R |
Upstream |
Group |
Cylindrical |
1.6 |
6.2 |
14 |
0.6 |
7.0 |
Insignificant |
Noncohesive |
0.26 |
0.39 |
0.90 |
1.30 |
1.9 |
1.1 |
0.2 |
247 |
29 |
MS |
1/30/1990 |
14:15 |
4 |
Downstream |
Single |
Square |
1.6 |
8.2 |
14 |
2.1 |
6.8 |
Insignificant |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
1.5 |
0.2 |
248 |
29 |
MS |
5/10/1991 |
14:45 |
4 |
Upstream |
Single |
Square |
1.6 |
8.2 |
8 |
2.1 |
7.5 |
Insignificant |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
0.7 |
0.2 |
249 |
29 |
MS |
1/30/1990 |
14:15 |
5 |
Upstream |
Single |
Square |
1.9 |
8.2 |
8 |
2.0 |
8.6 |
Insignificant |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
1.6 |
0.2 |
250 |
29 |
MS |
5/10/1991 |
14:45 |
5 |
Downstream |
Single |
Square |
1.8 |
8.2 |
11 |
2.0 |
8.8 |
Insignificant |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
1.2 |
0.2 |
251 |
29 |
MS |
1/30/1990 |
14:15 |
6 |
Upstream |
Single |
Square |
1.7 |
8.1 |
0 |
1.1 |
8.0 |
Insignificant |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
1.7 |
0.3 |
252 |
29 |
MS |
5/10/1991 |
14:45 |
6 |
Downstream |
Single |
Square |
1.7 |
8.1 |
11 |
1.6 |
9.2 |
Insignificant |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
2.3 |
0.3 |
253 |
29 |
MS |
1/30/1990 |
14:15 |
7 |
Upstream |
Group |
Square |
1.2 |
7.0 |
0 |
0.6 |
7.0 |
Insignificant |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
1.2 |
0.2 |
254 |
29 |
MS |
5/10/1991 |
14:45 |
7 |
Downstream |
Group |
Square |
1.2 |
7.0 |
0 |
0.9 |
8.8 |
Insignificant |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
0.8 |
0.3 |
255 |
30 |
MS |
1/27/1990 |
14:55 |
4 |
Upstream |
Group |
Cylindrical |
1.6 |
6.4 |
8 |
1.6 |
8.2 |
Unknown |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
0.6 |
0.2 |
256 |
30 |
MS |
1/30/1990 |
15:00 |
4 |
Upstream |
Group |
Cylindrical |
1.7 |
6.4 |
8 |
1.4 |
7.6 |
Unknown |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
1.0 |
0.2 |
257 |
30 |
MS |
5/10/1991 |
10:45 |
4 |
Upstream |
Group |
Cylindrical |
1.7 |
6.4 |
11 |
1.6 |
8.9 |
Unknown |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
0.4 |
0.2 |
258 |
30 |
MS |
1/27/1990 |
12:30 |
5 |
Upstream |
Group |
Cylindrical |
1.7 |
6.4 |
22 |
2.3 |
8.7 |
Unknown |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
2.3 |
0.2 |
259 |
30 |
MS |
1/30/1990 |
15:00 |
5 |
Upstream |
Group |
Cylindrical |
2.0 |
6.4 |
8 |
1.7 |
8.7 |
Unknown |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
1.0 |
0.2 |
260 |
30 |
MS |
2/5/1990 |
17:35 |
5 |
Upstream |
Group |
Cylindrical |
1.8 |
6.4 |
16 |
1.3 |
7.8 |
Unknown |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
0.6 |
0.2 |
261 |
30 |
MS |
5/10/1991 |
10:45 |
5 |
Downstream |
Group |
Cylindrical |
1.7 |
6.4 |
11 |
2.0 |
8.8 |
Unknown |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
1.4 |
0.2 |
262 |
30 |
MS |
1/27/1990 |
14:55 |
6 |
Upstream |
Group |
Cylindrical |
1.7 |
6.4 |
16 |
1.7 |
9.2 |
Insignificant |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
1.5 |
0.2 |
263 |
30 |
MS |
1/30/1990 |
15:00 |
6 |
Downstream |
Group |
Cylindrical |
1.7 |
6.4 |
14 |
2.1 |
8.4 |
Unknown |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
2.0 |
0.2 |
264 |
30 |
MS |
2/5/1990 |
17:35 |
6 |
Downstream |
Group |
Cylindrical |
1.8 |
6.4 |
18 |
1.3 |
7.7 |
Unknown |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
2.0 |
0.2 |
265 |
30 |
MS |
5/10/1991 |
10:45 |
6 |
Upstream |
Group |
Cylindrical |
1.6 |
6.4 |
14 |
2.2 |
8.3 |
Unknown |
Noncohesive |
0.39 |
6.90 |
15.00 |
20.00 |
6.2 |
3.0 |
0.2 |
266 |
34 |
MT |
5/21/1991 |
15:30 |
P1 |
Upstream |
Single |
Sharp |
1.0 |
11.0 |
0 |
1.6 |
0.5 |
Moderate |
Noncohesive |
0.35 |
8.00 |
30.00 |
48.00 |
9.3 |
0.4 |
0.2 |
267 |
34 |
MT |
6/4/1991 |
12:40 |
P1 |
Upstream |
Single |
Sharp |
1.0 |
11.0 |
0 |
1.3 |
0.5 |
Moderate |
Noncohesive |
0.35 |
8.00 |
30.00 |
48.00 |
9.3 |
0.5 |
0.2 |
268 |
34 |
MT |
6/21/1991 |
14:50 |
P1 |
Upstream |
Single |
Sharp |
1.0 |
11.0 |
0 |
1.3 |
0.4 |
Moderate |
Noncohesive |
0.35 |
8.00 |
30.00 |
48.00 |
9.3 |
0.5 |
0.2 |
269 |
34 |
MT |
5/21/1991 |
15:30 |
P3 |
Upstream |
Single |
Sharp |
1.0 |
11.0 |
0 |
1.6 |
0.4 |
Moderate |
Noncohesive |
0.35 |
8.00 |
30.00 |
48.00 |
9.3 |
1.0 |
0.1 |
270 |
34 |
MT |
6/4/1991 |
12:40 |
P3 |
Upstream |
Single |
Sharp |
1.0 |
11.0 |
0 |
1.4 |
0.3 |
Moderate |
Noncohesive |
0.35 |
8.00 |
30.00 |
48.00 |
9.3 |
1.0 |
0.1 |
271 |
34 |
MT |
6/21/1991 |
14:50 |
P3 |
Upstream |
Single |
Sharp |
1.0 |
11.0 |
0 |
1.6 |
0.5 |
Moderate |
Noncohesive |
0.35 |
8.00 |
30.00 |
48.00 |
9.3 |
1.1 |
0.1 |
272 |
34 |
MT |
5/21/1991 |
15:30 |
P4 |
Upstream |
Single |
Sharp |
1.0 |
11.0 |
0 |
1.2 |
0.3 |
Moderate |
Noncohesive |
0.35 |
8.00 |
30.00 |
48.00 |
9.3 |
0.5 |
0.1 |
273 |
34 |
MT |
6/4/1991 |
12:40 |
P4 |
Upstream |
Single |
Sharp |
1.0 |
11.0 |
0 |
0.8 |
0.1 |
Moderate |
Noncohesive |
0.35 |
8.00 |
30.00 |
48.00 |
9.3 |
0.3 |
0.1 |
274 |
34 |
MT |
6/21/1991 |
14:50 |
P4 |
Upstream |
Single |
Sharp |
1.0 |
11.0 |
0 |
0.6 |
0.2 |
Moderate |
Noncohesive |
0.35 |
8.00 |
30.00 |
48.00 |
9.3 |
0.4 |
0.1 |
275 |
31 |
MT |
6/6/1991 |
11:15 |
1 |
Upstream |
Single |
Sharp |
1.3 |
15.2 |
5 |
2.5 |
2.6 |
Insignificant |
Noncohesive |
17.00 |
39.00 |
90.00 |
140.00 |
2.3 |
1.1 |
0.1 |
276 |
31 |
MT |
6/10/1991 |
12:30 |
1 |
Upstream |
Single |
Sharp |
1.3 |
15.2 |
5 |
2.1 |
2.0 |
Insignificant |
Noncohesive |
17.00 |
39.00 |
90.00 |
140.00 |
2.3 |
0.8 |
0.1 |
277 |
31 |
MT |
6/13/1991 |
12:30 |
1 |
Upstream |
Single |
Sharp |
1.3 |
15.2 |
5 |
2.1 |
2.3 |
Insignificant |
Noncohesive |
17.00 |
39.00 |
90.00 |
140.00 |
2.3 |
0.8 |
0.1 |
278 |
31 |
MT |
6/18/1991 |
12:45 |
1 |
Upstream |
Single |
Sharp |
1.3 |
15.2 |
5 |
1.5 |
1.4 |
Insignificant |
Noncohesive |
17.00 |
39.00 |
90.00 |
140.00 |
2.3 |
1.0 |
0.1 |
279 |
31 |
MT |
6/6/1991 |
11:15 |
2 |
Upstream |
Single |
Sharp |
1.3 |
15.2 |
5 |
2.0 |
2.2 |
Insignificant |
Noncohesive |
17.00 |
39.00 |
90.00 |
140.00 |
2.3 |
0.8 |
0.1 |
280 |
31 |
MT |
6/10/1991 |
12:30 |
2 |
Upstream |
Single |
Sharp |
1.3 |
15.2 |
5 |
1.8 |
1.7 |
Insignificant |
Noncohesive |
17.00 |
39.00 |
90.00 |
140.00 |
2.3 |
0.9 |
0.1 |
Table 24. Pier scour observations, continued.
Measurement |
Site |
State |
Date |
Time |
Pier |
Upstream/ Downstream |
Pier Type |
Pier Shape |
Pier Width (m) |
Pier Length (m) |
Skew (deg) |
Velocity (m/s) |
Depth (m) |
Debris Effects |
Bed Material |
D16 (mm) |
D50 (mm) |
D84 (mm) |
D95 (mm) |
Grad-ation |
Scour Depth (m) |
Ac-curacy (m) |
281 |
31 |
MT |
6/13/1991 |
12:30 |
2 |
Upstream |
Single |
Sharp |
1.3 |
15.2 |
5 |
2.1 |
1.9 |
Insignificant |
Noncohesive |
17.00 |
39.00 |
90.00 |
140.00 |
2.3 |
0.9 |
0.1 |
282 |
31 |
MT |
6/18/1991 |
12:45 |
2 |
Upstream |
Single |
Sharp |
1.3 |
15.2 |
5 |
1.1 |
1.2 |
Insignificant |
Noncohesive |
17.00 |
39.00 |
90.00 |
140.00 |
2.3 |
0.9 |
0.1 |
283 |
32 |
MT |
6/6/1991 |
13:35 |
1 |
Upstream |
Single |
Sharp |
1.0 |
12.0 |
3 |
2.6 |
1.5 |
Insignificant |
Noncohesive |
38.00 |
95.00 |
230.00 |
330.00 |
2.5 |
0.2 |
0.1 |
284 |
32 |
MT |
6/18/1992 |
14:45 |
1 |
Upstream |
Single |
Sharp |
1.0 |
12.0 |
3 |
1.6 |
1.0 |
Insignificant |
Noncohesive |
38.00 |
95.00 |
230.00 |
330.00 |
2.5 |
0.4 |
0.1 |
285 |
32 |
MT |
6/23/1993 |
- |
1 |
Upstream |
Single |
Sharp |
1.0 |
12.0 |
3 |
1.9 |
1.0 |
Insignificant |
Noncohesive |
38.00 |
95.00 |
230.00 |
330.00 |
2.5 |
0.6 |
0.1 |
286 |
32 |
MT |
6/6/1991 |
13:35 |
2 |
Upstream |
Single |
Sharp |
1.0 |
12.0 |
3 |
3.2 |
1.7 |
Insignificant |
Noncohesive |
38.00 |
95.00 |
230.00 |
330.00 |
2.5 |
1.7 |
0.2 |
287 |
32 |
MT |
6/18/1992 |
14:45 |
2 |
Upstream |
Single |
Sharp |
1.0 |
12.0 |
3 |
2.1 |
1.1 |
Insignificant |
Noncohesive |
38.00 |
95.00 |
230.00 |
330.00 |
2.5 |
1.4 |
0.2 |
288 |
32 |
MT |
6/23/1993 |
0:00 |
2 |
Upstream |
Single |
Sharp |
1.0 |
12.0 |
3 |
2.1 |
1.2 |
Insignificant |
Noncohesive |
38.00 |
95.00 |
230.00 |
330.00 |
2.5 |
1.4 |
0.2 |
289 |
33 |
MT |
5/21/1993 |
16:10 |
1 |
Upstream |
Single |
Sharp |
0.9 |
10.4 |
0 |
2.4 |
2.7 |
Unknown |
Noncohesive |
28.00 |
73.00 |
150.00 |
190.00 |
2.3 |
0.8 |
0.2 |
290 |
33 |
MT |
5/27/1993 |
10:00 |
1 |
Upstream |
Single |
Sharp |
0.9 |
10.4 |
0 |
2.5 |
2.5 |
Unknown |
Noncohesive |
28.00 |
73.00 |
150.00 |
190.00 |
2.3 |
0.7 |
0.2 |
291 |
33 |
MT |
6/30/1993 |
10:30 |
1 |
Upstream |
Single |
Sharp |
0.9 |
10.4 |
0 |
1.5 |
2.0 |
Unknown |
Noncohesive |
28.00 |
73.00 |
150.00 |
190.00 |
2.3 |
0.6 |
0.2 |
292 |
33 |
MT |
5/21/1993 |
16:10 |
2 |
Upstream |
Single |
Sharp |
1.0 |
10.4 |
0 |
2.3 |
2.5 |
Unknown |
Noncohesive |
28.00 |
73.00 |
150.00 |
190.00 |
2.3 |
0.5 |
0.1 |
293 |
33 |
MT |
5/27/1993 |
10:00 |
2 |
Upstream |
Single |
Sharp |
0.9 |
10.4 |
0 |
2.4 |
2.4 |
Unknown |
Noncohesive |
28.00 |
73.00 |
150.00 |
190.00 |
2.3 |
0.5 |
0.1 |
294 |
33 |
MT |
6/30/1993 |
10:30 |
2 |
Upstream |
Single |
Sharp |
1.0 |
10.4 |
0 |
1.5 |
1.9 |
Unknown |
Noncohesive |
28.00 |
73.00 |
150.00 |
190.00 |
2.3 |
0.3 |
0.1 |
295 |
33 |
MT |
5/21/1993 |
16:10 |
3 |
Upstream |
Single |
Sharp |
0.9 |
10.4 |
0 |
1.0 |
2.3 |
Unknown |
Noncohesive |
28.00 |
73.00 |
150.00 |
190.00 |
2.3 |
0.1 |
0.1 |
296 |
33 |
MT |
5/27/1993 |
10:00 |
3 |
Upstream |
Single |
Sharp |
0.9 |
10.4 |
0 |
1.1 |
2.1 |
Unknown |
Noncohesive |
28.00 |
73.00 |
150.00 |
190.00 |
2.3 |
0.1 |
0.1 |
297 |
33 |
MT |
6/30/1993 |
10:30 |
3 |
Upstream |
Single |
Sharp |
0.9 |
10.4 |
0 |
1.1 |
1.8 |
Unknown |
Noncohesive |
28.00 |
73.00 |
150.00 |
190.00 |
2.3 |
0.1 |
0.1 |
298 |
36 |
NY |
10/23/1970 |
- |
1 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
2.0 |
3.8 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.5 |
0.2 |
299 |
36 |
NY |
6/24/1972 |
- |
1 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
4.1 |
8.3 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
1.6 |
0.2 |
300 |
36 |
NY |
10/23/1970 |
- |
2 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
1.8 |
3.7 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.3 |
0.2 |
301 |
36 |
NY |
6/24/1972 |
- |
2 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
3.9 |
9.5 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
1.2 |
0.2 |
302 |
36 |
NY |
3/25/1980 |
- |
2 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
2.4 |
4.9 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.9 |
0.2 |
303 |
36 |
NY |
10/23/1970 |
- |
3 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
1.5 |
3.4 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.0 |
0.2 |
304 |
36 |
NY |
6/24/1972 |
- |
3 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
3.7 |
9.6 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
1.2 |
0.2 |
305 |
36 |
NY |
9/28/1975 |
- |
3 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
3.2 |
5.8 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.7 |
0.2 |
306 |
36 |
NY |
3/25/1980 |
- |
3 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
2.3 |
3.8 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
1.0 |
0.2 |
307 |
36 |
NY |
10/23/1970 |
- |
4 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
1.0 |
2.4 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.0 |
0.2 |
308 |
36 |
NY |
6/24/1972 |
- |
4 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
3.4 |
9.7 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
1.3 |
0.3 |
309 |
36 |
NY |
9/28/1975 |
- |
4 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
2.9 |
5.7 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.6 |
0.2 |
310 |
36 |
NY |
3/25/1980 |
- |
4 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
2.1 |
3.7 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.0 |
0.2 |
311 |
36 |
NY |
10/23/1970 |
- |
5 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
0.8 |
2.0 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.0 |
0.2 |
312 |
36 |
NY |
6/24/1972 |
- |
5 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
3.2 |
8.1 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
1.2 |
0.2 |
313 |
36 |
NY |
9/28/1975 |
- |
5 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
2.7 |
5.4 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.6 |
0.2 |
314 |
36 |
NY |
3/25/1980 |
- |
5 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
2.0 |
3.6 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.0 |
0.2 |
315 |
36 |
NY |
10/23/1970 |
- |
6 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
0.5 |
1.7 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.0 |
0.2 |
Table 24. Pier scour observations, continued.
Measurement |
Site |
State |
Date |
Time |
Pier |
Upstream/ Downstream |
Pier Type |
Pier Shape |
Pier Width (m) |
Pier Length (m) |
Skew (deg) |
Velocity (m/s) |
Depth (m) |
Debris Effects |
Bed Material |
D16 (mm) |
D50 (mm) |
D84 (mm) |
D95 (mm) |
Grad-ation |
Scour Depth (m) |
Ac-curacy (m) |
316 |
36 |
NY |
6/24/1972 |
- |
6 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
2.7 |
5.8 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.6 |
0.2 |
317 |
36 |
NY |
9/28/1975 |
- |
6 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
2.3 |
3.8 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.3 |
0.2 |
318 |
36 |
NY |
3/25/1980 |
- |
6 |
Upstream |
Single |
Round |
1.5 |
14.6 |
0 |
1.6 |
2.6 |
Unknown |
Noncohesive |
11.00 |
27.00 |
58.00 |
106.00 |
2.3 |
0.0 |
0.2 |
319 |
40 |
NY |
9/16/1992 |
- |
1 |
Upstream |
Single |
Round |
3.0 |
17.7 |
0 |
4.5 |
7.7 |
Unknown |
Noncohesive |
14.00 |
45.00 |
103.00 |
80.00 |
2.7 |
0.9 |
0.2 |
320 |
39 |
NY |
10/21/1998 |
- |
3 |
Upstream |
Single |
Sharp |
1.8 |
6.7 |
0 |
2.9 |
6.4 |
Unknown |
Noncohesive |
18.00 |
27.00 |
42.00 |
80.00 |
1.5 |
1.0 |
0.2 |
321 |
35 |
NY |
10/24/1990 |
- |
1 |
Upstream |
Single |
Round |
0.9 |
12.2 |
30 |
2.1 |
3.1 |
Insignificant |
Noncohesive |
18.00 |
32.00 |
55.00 |
80.00 |
1.8 |
1.6 |
0.1 |
322 |
37 |
NY |
11/17/1989 |
- |
1 |
Upstream |
Single |
Round |
1.7 |
13.1 |
0 |
3.7 |
5.5 |
Insignificant |
Noncohesive |
15.00 |
33.00 |
60.00 |
103.00 |
2.0 |
0.6 |
0.1 |
323 |
37 |
NY |
11/17/1989 |
- |
2 |
Upstream |
Single |
Round |
1.7 |
13.1 |
0 |
3.4 |
5.1 |
Insignificant |
Noncohesive |
15.00 |
33.00 |
60.00 |
103.00 |
2.0 |
1.1 |
0.1 |
324 |
38 |
NY |
8/27/1991 |
- |
2 |
Upstream |
Single |
Round |
1.5 |
12.2 |
0 |
2.5 |
5.5 |
Unknown |
Noncohesive |
14.00 |
28.00 |
53.00 |
80.00 |
1.9 |
0.3 |
0.1 |
325 |
38 |
NY |
8/27/1991 |
- |
3 |
Upstream |
Single |
Round |
1.5 |
12.2 |
0 |
2.7 |
5.6 |
Unknown |
Noncohesive |
14.00 |
28.00 |
53.00 |
80.00 |
1.9 |
0.3 |
0.1 |
326 |
38 |
NY |
8/27/1991 |
- |
4 |
Upstream |
Single |
Round |
1.5 |
12.2 |
0 |
2.2 |
5.1 |
Moderate |
Noncohesive |
14.00 |
28.00 |
53.00 |
80.00 |
1.9 |
1.0 |
0.1 |
327 |
79 |
OH |
7/13/1992 |
14:30 |
1 |
Upstream |
Single |
Round |
0.8 |
9.4 |
40 |
0.5 |
3.2 |
Insignificant |
Noncohesive |
0.01 |
0.12 |
2.40 |
5.80 |
20.3 |
0.5 |
0.2 |
328 |
79 |
OH |
7/17/1992 |
16:10 |
1 |
Upstream |
Single |
Round |
0.8 |
9.4 |
50 |
0.3 |
2.2 |
Insignificant |
Noncohesive |
0.01 |
0.12 |
2.40 |
5.80 |
20.3 |
0.2 |
0.2 |
329 |
59 |
OH |
1/28/1994 |
10:00 |
1 |
Upstream |
Single |
Round |
1.2 |
9.4 |
0 |
1.1 |
3.2 |
Unknown |
Noncohesive |
0.03 |
0.15 |
0.28 |
0.35 |
2.9 |
0.9 |
0.2 |
330 |
60 |
OH |
12/31/1992 |
11:05 |
1 |
Upstream |
Single |
Round |
1.6 |
10.9 |
0 |
1.5 |
2.1 |
Insignificant |
Noncohesive |
0.39 |
12.00 |
31.00 |
44.00 |
8.9 |
0.4 |
0.2 |
331 |
60 |
OH |
12/31/1992 |
11:05 |
3 |
Upstream |
Single |
Round |
1.6 |
10.9 |
85 |
0.8 |
1.8 |
Insignificant |
Noncohesive |
0.09 |
9.00 |
33.50 |
71.00 |
19.3 |
0.3 |
0.2 |
332 |
41 |
OH |
5/16/1990 |
10:00 |
2 |
Upstream |
Single |
Round |
1.1 |
24.9 |
0 |
1.4 |
3.9 |
Insignificant |
Noncohesive |
0.75 |
1.82 |
5.00 |
8.80 |
2.6 |
0.5 |
0.2 |
333 |
41 |
OH |
7/18/1992 |
12:45 |
2 |
Upstream |
Single |
Round |
1.1 |
24.9 |
8 |
1.5 |
3.7 |
Insignificant |
Noncohesive |
0.75 |
1.82 |
5.00 |
8.80 |
2.6 |
0.4 |
0.2 |
334 |
41 |
OH |
1/29/1994 |
9:10 |
2 |
Upstream |
Single |
Round |
1.1 |
24.9 |
0 |
1.8 |
4.1 |
Insignificant |
Noncohesive |
0.25 |
1.30 |
14.00 |
18.00 |
7.5 |
0.3 |
0.2 |
335 |
41 |
OH |
5/16/1990 |
10:00 |
3 |
Upstream |
Single |
Round |
1.1 |
24.9 |
0 |
1.4 |
4.1 |
Insignificant |
Noncohesive |
0.14 |
0.78 |
1.60 |
1.80 |
3.4 |
0.3 |
0.2 |
336 |
61 |
OH |
7/17/1992 |
11:40 |
1 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
60 |
0.2 |
2.2 |
Insignificant |
Noncohesive |
- |
0.01 |
0.08 |
0.33 |
- |
0.2 |
0.2 |
337 |
61 |
OH |
11/13/1992 |
12:10 |
1 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
60 |
0.2 |
1.8 |
Insignificant |
Noncohesive |
- |
0.06 |
0.18 |
5.40 |
- |
0.2 |
0.2 |
338 |
61 |
OH |
1/29/1994 |
10:55 |
1 |
Upstream |
Single |
sSharp |
0.9 |
17.4 |
66 |
0.2 |
1.6 |
Unknown |
Noncohesive |
0.57 |
8.20 |
32.00 |
40.00 |
7.5 |
0.5 |
0.2 |
339 |
61 |
OH |
7/17/1992 |
11:40 |
2 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
66 |
0.2 |
2.3 |
Insignificant |
Noncohesive |
- |
0.01 |
0.70 |
0.96 |
- |
0.4 |
0.2 |
340 |
61 |
OH |
11/13/1992 |
12:10 |
2 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
66 |
0.2 |
1.9 |
Insignificant |
Noncohesive |
0.05 |
0.25 |
9.50 |
25.00 |
14.1 |
0.5 |
0.2 |
341 |
61 |
OH |
1/29/1994 |
10:55 |
2 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
66 |
0.3 |
1.7 |
Unknown |
Noncohesive |
3.50 |
18.00 |
33.00 |
43.00 |
3.1 |
0.5 |
0.2 |
342 |
61 |
OH |
7/17/1992 |
11:40 |
3 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
63 |
0.5 |
2.8 |
Insignificant |
Noncohesive |
2.20 |
36.30 |
64.00 |
72.00 |
5.4 |
1.0 |
0.2 |
343 |
61 |
OH |
11/13/1992 |
12:10 |
3 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
63 |
0.5 |
2.4 |
Insignificant |
Noncohesive |
1.65 |
22.50 |
39.50 |
47.00 |
4.9 |
0.8 |
0.2 |
344 |
61 |
OH |
1/29/1994 |
10:55 |
3 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
63 |
0.6 |
2.4 |
Unknown |
Noncohesive |
4.00 |
21.00 |
65.00 |
71.00 |
4.0 |
1.0 |
0.2 |
345 |
61 |
OH |
7/17/1992 |
11:40 |
4 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
62 |
0.8 |
3.0 |
Insignificant |
Noncohesive |
5.00 |
12.70 |
60.00 |
69.00 |
3.5 |
0.7 |
0.2 |
346 |
61 |
OH |
11/13/1992 |
12:10 |
4 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
64 |
0.6 |
2.7 |
Insignificant |
Noncohesive |
1.40 |
14.00 |
36.00 |
41.00 |
5.1 |
1.2 |
0.2 |
347 |
61 |
OH |
1/29/1994 |
10:55 |
4 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
60 |
0.7 |
2.4 |
Unknown |
Noncohesive |
6.50 |
27.00 |
43.00 |
48.00 |
2.6 |
1.5 |
0.2 |
348 |
61 |
OH |
7/17/1992 |
11:40 |
5 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
65 |
0.8 |
2.9 |
Insignificant |
Noncohesive |
1.60 |
4.10 |
10.30 |
38.00 |
6.4 |
0.6 |
0.2 |
349 |
61 |
OH |
11/13/1992 |
12:10 |
5 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
65 |
0.6 |
2.6 |
Insignificant |
Noncohesive |
2.70 |
29.00 |
58.00 |
70.00 |
4.6 |
0.9 |
0.2 |
350 |
61 |
OH |
1/29/1994 |
10:55 |
5 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
66 |
0.6 |
2.2 |
Unknown |
Noncohesive |
4.00 |
32.00 |
53.00 |
63.00 |
3.6 |
0.8 |
0.2 |
Table 24. Pier scour observations, continued.
Measurement |
Site |
State |
Date |
Time |
Pier |
Upstream/ Downstream |
Pier Type |
Pier Shape |
Pier Width (m) |
Pier Length (m) |
Skew (deg) |
Velocity (m/s) |
Depth (m) |
Debris Effects |
Bed Material |
D16 (mm) |
D50 (mm) |
D84 (mm) |
D95 (mm) |
Grad-ation |
Scour Depth (m) |
Ac-curacy (m) |
351 |
61 |
OH |
7/17/1992 |
11:40 |
6 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
60 |
0.8 |
2.9 |
Insignificant |
Noncohesive |
1.00 |
35.50 |
62.00 |
70.00 |
7.9 |
0.8 |
0.2 |
352 |
61 |
OH |
11/13/1992 |
12:10 |
6 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
57 |
0.9 |
2.6 |
Insignificant |
Noncohesive |
9.50 |
31.00 |
56.00 |
79.00 |
2.4 |
1.0 |
0.2 |
353 |
61 |
OH |
1/29/1994 |
10:55 |
6 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
60 |
0.7 |
2.3 |
Unknown |
Noncohesive |
9.00 |
34.00 |
55.00 |
65.00 |
2.5 |
1.0 |
0.2 |
354 |
61 |
OH |
7/17/1992 |
11:40 |
7 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
60 |
0.8 |
3.0 |
Insignificant |
Noncohesive |
0.98 |
4.10 |
58.00 |
70.00 |
7.7 |
0.9 |
0.2 |
355 |
61 |
OH |
11/13/1992 |
12:10 |
7 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
60 |
0.7 |
2.5 |
Insignificant |
Noncohesive |
7.80 |
56.00 |
80.00 |
90.00 |
3.2 |
1.1 |
0.2 |
356 |
61 |
OH |
1/29/1994 |
10:55 |
7 |
Upstream |
Single |
Sharp |
0.9 |
17.4 |
60 |
0.7 |
2.3 |
Unknown |
Noncohesive |
4.20 |
24.00 |
45.00 |
62.00 |
3.3 |
1.1 |
0.2 |
357 |
42 |
OH |
12/31/1990 |
13:00 |
1 |
Upstream |
Single |
Round |
0.8 |
9.1 |
22 |
1.5 |
5.3 |
Insignificant |
Noncohesive |
0.86 |
2.85 |
4.70 |
6.00 |
2.3 |
0.8 |
0.2 |
358 |
42 |
OH |
7/14/1992 |
10:50 |
1 |
Upstream |
Single |
Round |
0.8 |
9.1 |
32 |
0.9 |
3.6 |
Insignificant |
Noncohesive |
0.42 |
11.50 |
55.00 |
80.00 |
11.4 |
0.8 |
0.2 |
359 |
42 |
OH |
7/17/1992 |
12:40 |
1 |
Upstream |
Single |
Round |
0.8 |
9.1 |
20 |
1.2 |
3.5 |
Insignificant |
Noncohesive |
0.42 |
11.50 |
55.00 |
80.00 |
11.4 |
0.7 |
0.2 |
360 |
42 |
OH |
1/29/1994 |
13:50 |
1 |
Upstream |
Single |
Round |
0.8 |
9.1 |
14 |
1.8 |
5.2 |
Unknown |
Noncohesive |
0.68 |
2.50 |
8.00 |
14.00 |
3.4 |
0.7 |
0.2 |
361 |
42 |
OH |
12/31/1990 |
13:00 |
2 |
Upstream |
Single |
Round |
0.8 |
9.1 |
16 |
0.7 |
4.2 |
Insignificant |
Noncohesive |
0.03 |
0.17 |
0.25 |
0.45 |
2.8 |
0.3 |
0.2 |
362 |
42 |
OH |
7/14/1992 |
10:50 |
2 |
Upstream |
Single |
Round |
0.8 |
9.1 |
12 |
0.6 |
2.3 |
Insignificant |
Noncohesive |
0.05 |
0.15 |
0.30 |
0.38 |
6.3 |
0.3 |
0.2 |
363 |
42 |
OH |
7/17/1992 |
12:40 |
2 |
Upstream |
Single |
Round |
0.8 |
9.1 |
8 |
1.2 |
2.0 |
Insignificant |
Noncohesive |
0.05 |
0.15 |
0.30 |
0.38 |
6.3 |
0.3 |
0.2 |
364 |
42 |
OH |
1/29/1994 |
13:50 |
2 |
Upstream |
Single |
Round |
0.8 |
9.1 |
0 |
0.8 |
3.7 |
Unknown |
Noncohesive |
0.07 |
0.16 |
0.26 |
0.38 |
2.0 |
0.2 |
0.2 |
365 |
43 |
OH |
2/2/1990 |
15:30 |
2 |
Upstream |
Single |
Round |
1.0 |
10.9 |
0 |
1.2 |
2.0 |
Insignificant |
Noncohesive |
9.30 |
18.00 |
34.00 |
44.00 |
1.9 |
0.5 |
0.2 |
366 |
43 |
OH |
7/15/1992 |
14:25 |
2 |
Upstream |
Single |
Round |
0.9 |
10.9 |
12 |
1.2 |
2.1 |
Insignificant |
Noncohesive |
12.00 |
54.00 |
69.00 |
85.00 |
2.4 |
0.4 |
0.2 |
367 |
43 |
OH |
7/17/1992 |
10:40 |
2 |
Upstream |
Single |
Round |
0.9 |
10.9 |
0 |
1.2 |
2.1 |
Insignificant |
Noncohesive |
12.00 |
54.00 |
69.00 |
85.00 |
2.4 |
0.5 |
0.2 |
368 |
48 |
OH |
5/17/1990 |
12:15 |
1 |
Upstream |
Single |
Round |
0.8 |
9.6 |
0 |
0.7 |
2.2 |
Insignificant |
Noncohesive |
0.08 |
0.19 |
0.54 |
1.10 |
2.6 |
0.4 |
0.2 |
369 |
48 |
OH |
7/23/1990 |
13:05 |
1 |
Upstream |
Single |
Round |
0.8 |
9.6 |
0 |
0.9 |
2.8 |
Insignificant |
Noncohesive |
0.08 |
0.19 |
0.54 |
1.10 |
2.6 |
0.4 |
0.2 |
370 |
44 |
OH |
5/16/1990 |
14:30 |
1 |
Upstream |
Single |
Round |
0.8 |
7.4 |
0 |
1.4 |
2.6 |
Insignificant |
Noncohesive |
14.70 |
35.00 |
38.00 |
39.00 |
1.6 |
0.2 |
0.2 |
371 |
44 |
OH |
12/19/1990 |
10:10 |
1 |
Upstream |
Single |
Round |
0.8 |
7.4 |
0 |
1.5 |
2.3 |
Insignificant |
Noncohesive |
14.70 |
35.00 |
38.00 |
39.00 |
1.6 |
0.8 |
0.3 |
372 |
44 |
OH |
12/19/1990 |
10:10 |
2 |
Upstream |
Single |
Round |
0.8 |
7.4 |
0 |
1.1 |
1.7 |
Insignificant |
Noncohesive |
12.00 |
60.00 |
71.00 |
75.00 |
2.4 |
0.2 |
0.2 |
373 |
62 |
OH |
1/5/1993 |
12:10 |
1 |
Upstream |
Single |
Round |
1.6 |
11.3 |
0 |
1.0 |
0.9 |
Substantial |
Noncohesive |
11.50 |
19.00 |
32.00 |
42.00 |
1.7 |
1.2 |
0.2 |
374 |
62 |
OH |
7/2/1993 |
10:30 |
1 |
Upstream |
Single |
Round |
1.6 |
11.3 |
0 |
1.2 |
1.6 |
Substantial |
Noncohesive |
3.80 |
25.00 |
56.00 |
69.00 |
3.8 |
1.4 |
0.2 |
375 |
62 |
OH |
1/28/1994 |
11:25 |
1 |
Upstream |
Single |
Round |
1.6 |
11.3 |
0 |
1.4 |
2.0 |
Unknown |
Noncohesive |
3.80 |
25.00 |
56.00 |
69.00 |
3.8 |
1.0 |
0.2 |
376 |
63 |
OH |
1/28/1994 |
10:50 |
1 |
Upstream |
Group |
Square |
0.3 |
14.4 |
14 |
0.3 |
1.8 |
Unknown |
Noncohesive |
0.12 |
0.46 |
1.20 |
1.80 |
3.2 |
0.2 |
0.2 |
377 |
64 |
OH |
7/14/1992 |
10:45 |
2 |
Upstream |
Single |
Sharp |
1.2 |
16.4 |
32 |
0.8 |
1.7 |
Insignificant |
Noncohesive |
4.10 |
17.30 |
44.00 |
53.00 |
3.3 |
0.4 |
0.2 |
378 |
64 |
OH |
7/18/1992 |
10:15 |
2 |
Upstream |
Single |
Sharp |
1.2 |
16.4 |
37 |
1.1 |
3.8 |
Insignificant |
Noncohesive |
4.10 |
17.30 |
44.00 |
53.00 |
3.3 |
0.5 |
0.2 |
379 |
64 |
OH |
1/6/1993 |
13:10 |
2 |
Upstream |
Single |
Sharp |
1.2 |
16.4 |
15 |
1.5 |
6.0 |
Insignificant |
Noncohesive |
4.10 |
12.00 |
44.00 |
53.00 |
2.6 |
0.2 |
0.2 |
380 |
64 |
OH |
7/14/1992 |
10:45 |
3 |
Upstream |
Single |
Sharp |
1.2 |
16.4 |
36 |
0.9 |
1.5 |
Insignificant |
Noncohesive |
0.34 |
1.30 |
3.00 |
6.60 |
3.0 |
0.3 |
0.2 |
381 |
64 |
OH |
7/18/1992 |
10:15 |
3 |
Upstream |
Single |
Sharp |
1.2 |
16.4 |
32 |
0.8 |
3.6 |
Substantial |
Noncohesive |
0.34 |
1.30 |
3.00 |
6.60 |
3.0 |
0.4 |
0.2 |
382 |
64 |
OH |
1/6/1993 |
13:10 |
3 |
Upstream |
Single |
Sharp |
1.2 |
16.4 |
10 |
0.9 |
5.8 |
Moderate |
Noncohesive |
0.18 |
2.85 |
8.80 |
14.00 |
7.0 |
0.2 |
0.2 |
383 |
45 |
OH |
8/22/1990 |
10:40 |
1 |
Upstream |
Single |
Round |
0.8 |
11.4 |
0 |
0.8 |
1.6 |
Unknown |
Noncohesive |
0.90 |
4.00 |
26.00 |
45.00 |
5.7 |
0.8 |
0.2 |
384 |
45 |
OH |
12/30/1990 |
14:30 |
1 |
Upstream |
Single |
Round |
0.8 |
11.4 |
0 |
1.3 |
3.2 |
Unknown |
Noncohesive |
0.90 |
4.00 |
26.00 |
45.00 |
5.7 |
0.7 |
0.2 |
385 |
45 |
OH |
7/17/1992 |
14:15 |
1 |
Upstream |
Single |
Round |
0.8 |
11.4 |
0 |
1.2 |
2.3 |
Moderate |
Noncohesive |
0.66 |
6.80 |
30.50 |
44.00 |
6.8 |
0.5 |
0.2 |
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