B08_Attachment_18_BIBE-259631-317515_Oak_Spring_powerline_UAS_Survey_index_and_photo_log.xlsx

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BIBE 259631-317515 Chisos Lodge & Water Solicitati
Solicitation number
140P2025R0039
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Written by GovTribe AI ·

This Excel file is a detailed drone video and photo index documenting a UAS (Unmanned Aerial System) survey of the Oak Spring powerline right-of-way (ROW) and transmission line infrastructure. The comprehensive document contains three primary sections: a master index of video segments, a timestamp index by pole number, and a photo log with geo-referenced images taken during two separate field surveys on February 11 and 13, 2025.

The survey covers approximately 67 poles across six video segments, systematically documenting infrastructure conditions, ROW characteristics, and notable features. Key observations include infrastructure damage such as bear-damaged poles (Pole 13), lightning-struck poles (Pole 15), broken crossarms, loose guy wires, and various access road conditions. The survey tracks the powerline's path through diverse terrain, including drainages, steep slopes, and creek crossings, with precise geographical coordinates and detailed timestamp-matched photographic documentation. While directly associated with Solicitation Number 140P2025R0039 for the National Park Service, this file appears to be a technical survey document rather than a solicitation or contract award details.

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01 Master index

Oak Spring powerline and ROW - drone video Master Index
Main overview screens:
0:00:01Main title screen
0:00:09Overview of entire ROW flight path, showing timestamps of Segments 1-4.
0:00:19Overview of entire powerline flight path, showing timestamps of Segments 5-6.
0:56:43Repeat of above to re-orient viewer
1:18:14Conclusion of video
Video Segment intro screens:
Start time:Video Segment:Area covered:Begins at:Ends at:Primary direction(s) of flight:
0:00:291Northern access road to intersection with north powerline ROWRoute 13 (paved) /Route 13 (paved) /SE
0:15:532Northernmost portion of ROW.N branch off SE end of N access road; intercepts powerline near Pole 53Pole 66.NE
0:25:303Middle portion of ROW and primary southern portion of ROWAdjacent to Pole 52 / Pole 1.Pole 1.SW, S, SE
0:43:504Southern secondary ROWJust south of Pole 32 / Pole 1Pole 1S, SE
0:56:505Follows northern portion of powerline directlyPole 50, ends at Pole 67Pole 67NE
1:03:406Follows southern portion of powerline directlyPole 53, ends at Pole 1Pole 1SW, S, SE
Anomalous portions of video: (Portions where drone loses path or image re-sets):
From/ At:To:
0:10:300:10:52Drone veers off before regaining path
0:11:500:12:56Drone loses path, backtracks, reorients, regains path
0:14:130:14:35Drone backtracks slightly, then picks back up where it left off. Image resets.
0:16:380:17:10Drone loses path, backtracks slightly, then re-sets.
0:23:100:23:22Drone drifts slightly off course at Pole 61. Image re-sets to Pole 60.
0:27:03Image resets at Pole 48 (first pole on north side of Ash Creek)
0:33:420:33:49Drone drifts off ROW, regains road and image re-sets at Pole 38
0:37:47Image re-sets to Pole 21
0:39:420:41:02Drone drifts past sharp bend at Pole 11 twice; image resets both times to Pole 12; regains ROW at 41:17
1:03:001:03:39Drone flies over large unnamed canyon outside project area, to next pole on other side
1:12:09Image resets at Pole 21
1:14:031:14:49Drone flies past Pole 11 twice, resets at Pole 12 at 01:14:49

02 Timestamps by Pole #

Timestamp index to drone video of Oak Spring powerline and ROW, by pole number
(mostly as poles appear at center of video, but sometimes just adjacent)
Video segments 1-4: following ROWVideo segments 5-6: following powerline
Pole #Segment 1Segment 2Segment 3Segment 4Segment 5Segment 6Notes:
Direction of travel:
(S to N)SENESW / S / SESNESW / S /SE
1(No poles appear in this N access road segment)0:43:460:56:041:18:08Oak Spring tank and pumphouse complex
20:43:430:56:001:18:06Note: Pole 2 very close to Pole 2
30:43:350:55:511:17:58
40:43:290:55:451:17:53
50:43:140:55:251:17:37
60:43:000:55:081:17:23
70:42:400:54:421:17:03Oak Spring service road intersects powerline
80:42:301:16:53
90:42:051:16:28
100:41:381:16:01
110:39:40 / 0:40:12 / 0:40:501:14:03Major deflection point, powerline turns N
120:39:25 / 0:39:51 / 0:40:251:13:48
130:39:081:13:31Substantial splintering of Pole 13 from bear scratching/rubbing
140:38:551:13:19
150:38:471:13:10Top of Pole 15 appears lightning struck and burned
160:38:351:12:59
170:38:301:12:53
180:38:221:12:46
190:38:141:12:37
200:38:021:12:26
210:37:541:12:04 / 1:12:18
220:37:411:11:54
230:37:301:11:46
240:37:191:11:34Crossarm has broken brace
250:37:111:11:26Pole has bear scratching
260:37:031:11:15Pole has a single rather loose guy wire attached
270:36:491:11:01ROW deviates around bluffline slightly
280:36:331:10:43
290:36:191:10:26Pole is marked # 38362. Guy wire attached to pole.
300:36:101:10:16Pole has broken/missing coils
310:35:581:10:00
320:35:360:43:571:09:33N end of secondary southern access road joins primary ROW here. Crossarm slightly tilted.
330:35:181:09:06Major deflection point, line turns to NE. No crossarm on this pole. Pole marked #36833
340:35:091:08:49
350:34:561:08:38
360:34:471:08:30
370:34:261:08:13Access by short spur road
380:33:39 / 0:33:491:07:56Access by short spur road
390:33:211:07:37Access by short spur road
400:32:131:07:17A spur road that does not show on maps provides access to this pole and also Pole #41
410:32:001:07:03Woodpecker-drilled crossarm
420:31:43 (pole) / 0:32:03 (spur road)1:06:52Access by short spur road; old wire left on ground between Pole 40 and 42
430:30:091:06:29
440:29:541:06:16
450:29:221:05:58
460:27:281:05:37
470:27:211:05:27First pole S of Ash Creek
480:26:57 / 0:27:031:05:15First pole N of Ash Creek
490:26:441:05:02Crossarm askance #1
500:26:200:56:541:04:44
510:26:020:57:331:04:24Access by short spur road. Pole intact here, but old wire on ground. Crossarm missing brace
520:25:350:58:031:04:04Crossarm askance #2. Very rough approach to this pole.
530:17:490:58:181:03:49Line drops from 3-phase (N of this point) to 2-phase (S of this point) ; access by short spur road. Pole marked 36840.
540:18:240:58:38Double pole - one apparently abandoned, with no crossarm
550:18:580:59:00
560:19:280:59:22
570:20:050:59:46Slight deflection point
580:20:241:00:02Neutral wire down from Pole 58 to Pole 61; access by short spur road
590:21:241:00:263rd phase down from Pole 59 to Pole 61
600:22:06 / 0:23:221:00:53Jury-rigged sidearms only; guy wire barely at very top of pole
610:23:10 / 0:23:521:01:13Access by short spur road
620:24:001:01:25
630:24:151:01:44
640:24:481:02:19
650:25:051:02:37
660:25:281:02:59
671:03:38On opposite side of very wide unnamed canyon; outside project area

03 Photo log

Oak Spring powerline and ROW photos, matched to timestamps of drone video
(Timestamp matched as best as possible to what is actually shown in photo)
Photo location:
Photo #FacingPhoto corresponds to video timestamp(s):Corresponds with video segment(s):Lat.Long.Closest to Pole #Notes
Photos taken Feb. 11, 2025 - hiking SE down northern ROW access road from Route 13, then from Poles 53-66, back to 53, and then down to 48 before returning via same route in.
1SE0:00:48129.332433-103.353991Drainage (Starting at Route 13 headed SE on N access road)
2NW"1"""
3NE0:02:03129.329995-103.352089Drainage
4E0:04:38129.329794-103.351511Typical flat section
5W"1"""
6NE0:05:44129.326259-103.345080Slightly slopy. Two NPS employees in photo
7W0:05:46129.325663-103.342155Rutted portion of slope
8W0:05:481"""
9S0:06:30129.324301-103.341508Steep climb out of drainage
10N"1"""
11W0:08:29129.323571-103.337957General overview at base of foothills
12E"1"""
13SE0:08:49129.323129-103.337223Start of steep slope
14NW"1"""
15SE0:09:00129.322792-103.336981Continuation of steep slope
16NW"1"""
17SE"129.322141-103.336817Top of steep slope
18NW0:09:171"""
19SE0:09:51129.321566-103.335621Scrambly rocky slope
20NW"1"""
21E0:11:08129.320495-103.334424Top of rise
22W"1""" (blurry)
23E0:14:06 / 0:15:41129.319697-103.333335Rocky slope
24W0:14:061"""
25E0:15:38129.319495-103.330929Large prickly pear has grown partly over road
26W0:15:521""Top of rise
"1
27SE0:16:27229.316966-103.331392Slope
28NW"2"""
29SW0:17:49 / 0:58:19 / 1:03:492, 5, 629.317077-103.32950653Line drops from 3-phase (N of this point) to 2-phase (S of this point)
30NE""""""
31-"""""Close-up showing one less wire headed south
32-"""""Marker on Pole 53 ("36840")
33-"""""Pole tag
34ENE0:19:09 / 0:59:082, 529.318654-103.32714355Base of steep slope (Pole 56 visible at top of slope)
35WSW0:19:25 / 0:59:222, 5""56Top of slope (Pole 55 and double-pole 54 visible in background)
36SW0:20:01 / 0:59:472, 529.319724-103.32541757Deflection point, powerline begins to trend more directly E
37ENE"""""" (Pole 58 visible ahead)
38NE0:20:12 / 0:59:482, 529.320232-103.324883"Rough, steep section (looking down)
39SW0:20:19 / 0:59:502"""" (looking up)
40WSW0:21:06 / 1:00:102, 529.320051-103.32416558Neutral wire down from Pole 58 to Pole 61. Pole 58 shown in photo.
41ENE"""""" (Pole 59 visible in distance)
42WSW0:21:06 / 1:00:272, 529.320275-103.32329759Neutral plus 3rd phase (middle wire) down
43ENE"""""Close-up of slack wire
44WSW""""59-60"
45ENE""""""
46-""""60Pole tag
47-0:22:08 / 0:23:25 / 1:00:532, 529.320716-103.32176660Pole with top blown off and jury-rigged side arms, A & B phase only, support guy wire attached very close to top end of pole snag
48-"2, 5"""Close-up of old crossarm on ground
49WSW"""""Wire on ground
50ENE""""""
51WSW0:23:11 / 0:23:53 / 1:01:132, 529.321314-103.32051061Start of neutral plus 3rd phase (middle wire) on ground (Pole 60 visible at top of slope in distance)
52ENE"2, 5"""" (Pole 62 visible in distance)
53-"2, 5"""Close-up of pole where neutral/3rd phase begins to go slack
54E0:24:25 / 1:02:042, 529.321477-103.31842763Steep section
55W"2, 5""""
56E0:24:46 / 1:02:202, 529.321528-103.31812664View toward wide canyon
57W"2, 5"""View away from wide canyon (at Pole 64)
58-0:25:35 / 0:58:03 / 1:04:042, 5, 629.316609-103.33033852Close-up of askance crossarm (#2, Pole 49 is #1))
59NE"""""View up powerline to NE
60SW"""""View down powerline to SW
61N"""""General landscape overview from Pole 52
62S"3, 5"""Rough approach to Pole 52
63SE0:26:01 / 0:57:32 / 1:04:263, 5, 629.315939-103.33227451View from base of spur road to Pole 51
64NW0:26:01 / 0:57:333, 5"""From top of spur road to Pole 51
65WSW0:26:06 / 0:57:313, 529.315609-103.331847"View down powerline.
66ENE0:26:06 / 0:57:353, 5"""View up powerline. Pole 52 visible in distance
67SW0:26:19 / 0:56:55 / 1:04:453, 5, 629.314829-103.33297150View of road at Pole 50
68NE"3"""Looking up powerline from Pole 50
69-0:26:43 / 1:05:033, 629.314279-103.33376349Close-up of askance crossarm (#1, Pole 52 is #2)
70N"""""View up access road from Pole 49
71SW"""""View down powerline toward Ash Creek
72SW0:26:58 / 1:05:153, 629.313793-103.33460548View across Ash Creek from N side (access from north side ends here)
73NE"""""View up powerline from N edge of Ash Creek (Pole 48 in foreground)
Photos taken Feb. 13, 2025 - hiking primary ROW from Pole 7 (at intersectionof powerline with Oak Spring service road) to Pole 47 and return, taking secondary southern ROW from pole 32 back to starting point
74NW0:42:39 / 1:17:033, 629.283237-103.3416677Start of south portion - dense brush at powerline's intersection with Oak Spring service road
75SE"""""Looking toward road / The Window
76NW0:42:24 / 1:16:473, 629.283651-103.3422688ROW quickly becomes more clear and distinct
77SE"""""Looking back toward road / The Window
78NW0:42:07 / 1:16:303, 629.284367-103.343306"Drainage crossing
79SE"""""", view toward The Window
80NW0:42:05 / 1:16:283, 629.284361-103.3435239Pole 10 in distance
81SE"""""", view toward The Window
82SW0:41:50 / 1:16:133, 629.284712-103.344207"Substantial drainage crossing
83NE""""""
84NW0:41:38 / 1:16:023, 629.284927-103.34478010View up powerline (not road) from Pole 10
85SE"""""View down powerline toward The Window
86SE0:39:38 / 1:14:03 / 1:14:343, 629.285315-103.34547311Major point of deflection, powerline turns N. View toward the Window.
87N"""""", view N up narrow valley/shallow canyon which helps conceal much of powerline.
88N0:39:26 / 1:13:49 / 1:14:153, 629.286363-103.34559011-12Shallow drainage just north of Pole 11
89S""""""
90N0:39:08 / 1:13:323, 629.287638-103.34581713View up powerline
91S"""""" down
92N"""""Substantial splintering of Pole 13 from bear scratching/rubbing
93N""""""
94N0:38:57 / 1:13:193, 629.288648-103.34578014Drainage near pole 14
95S"3""""
96N0:38:47 / 1:13:103, 629.289535-103.34599215View up powerline
97S"""""" down
98-"""""Photo blurry, but top of Pole 15 appears lightning struck and burned
99N0:38:35 / 1:12:593, 629.281389-103.33597516View up powerline, slightly brushy
100S"""""" down
101NE0:38:30 / 1:12:533, 629.282284-103.34629417View up powerline - shallow drainage
102SW"""""" down
103NW0:38:27 / 1:12:503, 629.282585-103.34655717-18Drainage between Poles 17 and 18
104SE""""""
105N1:12:46629.292057-103.34637318View up powerline
106S"""""" down
107N1:12:38629.292916-103.34650419View up powerline
108S"""""" down
109N1:12:27629.294091-103.34662920View up powerline
110S"""""" down
111N0:37:41 / 1:12:04 / 1:12:193, 629.285709-103.34671221View up powerline
112S0:37:413"""" down
113-0:37:11329.296891-103.34688224Crossarm with broken brace
114-0:36:48329.298257-103.34712826This pole has a single rather loose guy wire attached
115N0:36:40 / 1:12:503, 629.299170-103.34727827Road deviates around bluffline slightly
116-0:35:58329.302774-103.34751831Pole has broken/missing coils
117-"3""""
118N0:35:37 / 1:09:323, 629.303912-103.34763432View up powerline
119S"""""" down
120N0:35:18 / 1:09:053, 629.305212-103.34771633Major point of deflection in powerline to NE (no crossarm on this pole)
121-"""""Pole marked #36833
122NE"""""View up powerline
123S"""""" down
124NE0:35:08 / 1:09:493, 629.305682-103.34701834View up powerline
125SW""""" down
126NE0:34:57 / 1:08:383, 629.309147-103.34632435View up powerline
127SW""""" down
128NE0:34:32 / 1:08:173, 629.307007-103.34546336-37Stream crossing between Poles 36-37 - view heading NE into drainge (See also photos 176-179)
129NE"3, 6"""
130SW"3, 6"""
131SW0:34:26 / 1:08:103, 629.306948-103.34507337View down powerline from atop butte where Pole 37 is situated
132NE""""37View up " "
133S""""37Base of spur access road to Pole 37
134NE0:33:55 / 1:08:103, 629.307341-103.34401638Rougher portion of ROW adjacent to Pole 38 (see also photos 174-175)
135W"""""
136NE0:33:28329.308041-103.343655Low spot / dip in road
137SW"3"""
138E0:33:22 / 1:07:363, 629.308526-103.34354439Pole 39 spur road (Pole 39 in distance)
139NE0:33:00329.309128-103.34403939-40Substantial drainage, first major ROW deviation
140SW"3""39-40"
141SE0:32:35329.309861-103.34202039-40Portion of smooth, highly visible road in ROW deviation between Poles 39-40
142NW"3""39-40"
143-0:31:43 / 0:32:03 / 1:06:52"29.309995-103.34042242Woodpecker-drilled crossarm
144SW"""""Pole 42 visible with 41 in distance
145NE1:06:29""""View across substantial draw between Pole 42 and 43; ROW access road deviates around draw sharply to W
146W0:32:03 / 1:06:513, 6"""Pole 40 and 41 access spur
147SW"""""Old wire left on ground between Poles 40-42
148SW""29.309679-103.340478"Start of unmarked access spur to get to Poles 40 and 41 (doesn't show on ROW maps)
149SW""""""
150NE""""""
151SW0:32:13 / 1:07:17"29.309084-103.34191940At SW end of point past Pole 40, looking SW across drainage toward Pole 39
152NE""""40Looking back toward Pole 40
153S0:27:22 / 1:05:273, 629.313333-103.33531247View S from final pole on S side of Ash Creek (Pole 47 visible in foreground, 46 in background)
154SE0:27:28 / 1:05:333, 629.313016-103.34102146Bottom of extremely rocky slope of access road that leads down to Poles 46 and 47; Pole 46 visible
155N"3, 6""46Base of rocky slope, Pole 47 and Ash Creek visible
156NW0:27:36 / 1:05:373, 6""46Top of steep rocky slope, Pole 46 visible at left
157N0:27:58329.311912-103.33500645-46High point along ROW access road deviation between Poles 45 and 46
158S"3""""
159SE0:28:16329.311074-103.335071"Rocky slope, road somewhat indistinct (note pricly pear clusters directly in road)
160NW"3""""
161E0:28:34329.311446-103.335950"Tricky spot to an oberver on ground - access road actually trends to right (East, where person is), not left (NW)
162SE0:29:05329.311355-103.336662"Steep portion
163NW0:30:56329.312118-103.34067645General ROW views
164SE"3""""
165SE0:31:16329.312176-103.34166342-43Sharp bend in ROW deviation between Poles 42 and 43
166S0:31:37329.311116-103.340599"Substantial drainage,second major detour
167N"3""""
168SW"3""""
169NE"3""""
170SW0:33:00329.309119-103.34399839Steep section at major drainage
171N"3""""
172S0:33:27329.308040-103.34361438Somewhat steep section at substantial drainage (pole 38 visible to right)
173N"3"""
174SW0:33:55 / 1:07:553, 629.307350-103.34397538Rocky sloped area adjacent to Pole 38 (see also photos 134-135)
175NE"""""
176NE0:34:32 / 1:08:173, 629.306989-103.34543336-37Access road continuing NE past drainage (see also photos 128-130)
177SW"""""Access road contiuing SW past drainage
178SE"""""View upstream of drainage
179NW"""""View downstream of drainage
180W0:35:40 / 0:43:58 / 1:09:363, 4, 629.303696-103.34765832Spot where the southern secondary access road meets primary ROW
181W0:44:26429.303337-103.348570Minor drainage
182E"4""" (blurry)
183N0:44:56429.302928-103.349050View from where southern secondary access road begins to drop off bluffline to meet primary ROW
184S"4"""
185N0:46:05429.300954-103.347764Bump up to slightly higher ridgeline
186W"4"""
187E0:47:38429.297174-103.347876Typical section southern secondary ROW

File details come from the government source that posted it. Updated .