Triple UnderPass
Data collected from 20220927-30 with limited help from 2019 and 1999 sketches.
00 ? No measurement due to safety concerns with freeway traffic too close to the line of sight.
01 124.5+/-1
Two stages- tripod mounted laser in front of column block 51.7
Tripod to corresponding column across the tracks- duplicate measurements 119,121
02 47.7 Measured in five segments from south face of column C to south face of column D.
02a 45.3 Not indicated on the revised diagram. From midpoint of column D (½ of 88.5) to north side of column E (including the abutting post).
03 167 Composed of 21 segments. Cumulative errors likely.
04 40.75 Missed this measurement or failed to record it. Computed #06 + #46 - #22
05 10 Base of the beveled top (see notes about beveled surfaces in general)
06 39.6
07 5.75
08 9 5/8
09 7
10 23
11 8 Missed measurement or failed to record it. I did measure that depth in my 2019 visit.
12 7
13 9.5
14 3 1/8
15 1 11
16 6+1 bevel Missed measurement or failed to record it. Data estimated from 2019, and 2022 data
17 1 Bevel height
18 13
19 15
20 1
21 ~2.5
22 3
23 7/8+1 for bevel
24 5.75+1 for bevel
25 2 7/8 +1 bevel
26 6 , 10 degree slope to apex (smart phone app)
27 15.5
28 15
29 15 3/8 (16 2019 data)
30 29 (2 8.5 2019 data)
31 42.5 (48 2019 data)
32 17
33 37
34 73
35 8 9.2
36 15 10 2x #31 + #35
37 Unable to reach high enough to extend the measure tape to the east edge
38 ?40-41, Tape laid on top and extended to apparent edge. Photos show that edge as beginning of bevel.
39 ?33, Tape edge probably did not reach the full length. (Photo), (3 10 2019 measurement)
40 12
41 12
42 3 6.7
43 5 11.4
44 40 4.7
45 11 5.2
46 3 + ~1.25 bevel? (Photo 20220928_085633 ruler has 5mm dead space before 0)
47 ~13-14 Missed measurement or failed to record it. Estimate from photos compared with #05
Measurment key for Jerrys Drawing
Measurment to what I think is the bridge bed. Im not sure when the pedestrian sidewalk was added and if, or how, that might have covered the true bed (#04, #46).
Closeup of a typical edge bevel. I used 1 for my measurements but 1.25 might be closer, based on this image. Id like to note that the bevels are everywhere! The devil is in the bevels for making close measurements as there are almost no sharp edges to be found. Were the edges originally sharp but eroded over 85 years?
Miscellaneous photos taken of the TUP top-side over three campaigns.
https://drive.google.com/drive/folders/13Si6mnpR1aKiY7md6CYjvBsDEaXzkHFA?usp=sharing