B08_-_Atch_2_-_Drawings.pdf

PDF 601 KB Posted Apr 22, 2026

Attached to: LAKE - TWO COMMUNICATIONS TOWER INSTALLATION AND O
Solicitation number: 140P8126B0003
Issued by: Department of the Interior National Park Service Pacific West Region

About this file

Written by GovTribe AI · Apr 22, 2026

This document consists of technical engineering drawings and specifications for Valmont Industries cable ladder and V-frame antenna support assembly products.

The first section contains detailed assembly drawings for a 6-run cable ladder system (Part No. WCL6) with 20-foot galvanized steel construction. The bill of materials specifies 2 galvanized angle sections, 6 waveguide brackets, and associated hardware including 3/8" hex bolts, flat washers, lock washers, and nuts. A universal ladder attachment kit (CLK-U, sold separately) accommodates angles from 2" to 5" and requires a minimum of 2 kits per 20-foot section. Standard tolerances apply: ±0.030" for sawed/sheared/gas cut edges and holes, ±0.010" for laser cut edges and holes, and ±0.060" for assembly work. The proprietary drawings are marked as Valmont Industries trade secrets with restricted use.

The second section provides comprehensive engineering drawings for a 6-foot standard duty V-frame antenna support assembly with one stiff arm (Part No. VFA6-SD-S). The assembly includes 34 line items totaling 347.01 pounds, comprising welded support arms, pivot plates, backing plates, positioning plates, tie-back clips, crossover plates, clamp halves, galvanized pipe sections, and extensive fastening hardware (A325 bolts, threaded rods, U-bolts, and washers in 3/4", 5/8", and 1/2" sizes). The drawings include detailed angle calibration procedures with taper measurements, torque specifications (50 ft-lbs for locking bolts), and provisions for antenna mounting pipes ordered separately. The assembly requires separate procurement of Unistrut hardware (3/8" size) and equipment pipe hardware (1/2" size with 2-3/8" to 4-1/2" O.D. pipe). The final page shows a product marketing image for a universal round climbing leg safe climb system (RSC-50-G) with 50-foot galvanized cable, adjustable components, and OSHA/ANSI compliance.

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DETAIL A

DETAIL B

DETAIL C

THE DATA AND TECHNIQUES CONTAINED IN THIS DRAWING ARE PROPRIETARY INFORMATION OF

VALMONT INDUSTRIES AND CONSIDERED A TRADE SECRET. ANY USE OR DISCLOSURE WITHOUT

THE CONSENT OF VALMONT INDUSTRIES IS STRICTLY PROHIBITED.

TOLERANCES ON DIMENSIONS, UNLESS OTHERWISE NOTED ARE:

SAWED, SHEARED AND GAS CUT EDGES (± 0.030")

DRILLED AND GAS CUT HOLES (± 0.030") - NO CONING OF HOLES

LASER CUT EDGES AND HOLES (± 0.010") - NO CONING OF HOLES

BENDS ARE ± 1/2 DEGREE - ALL OTHER MACHINING (± 0.030")

ALL OTHER ASSEMBLY (± 0.060")

DESCRIPTION

DRAWING USAGE

CHECKED BYENG. APPROVAL

DRAWN BY

DWG. NO.

P A

G E

PART NO.

Engineering Support Team:

1-888-753-7446

CPD NO.

CEK

1 O F

WCL6BMC 1/17/2012

1/16/2012 WCL6

TOLERANCE NOTE

PROPRIETARY NOTE

Locations:

New York, NY Atlanta, GA Los Angeles, CA Plymouth, IN Salem, OR Dallas, TX

6 RUN

CABLE LADDER

CUSTOMER

SITE

PRO

valmont

PARTS LIST

NET WT.UNIT WT.LENGTHPART DESCRIPTIONPART NO.QTYITEM

103.1751.59240 in20' GALVANIZED ANGLEX-WCL21

12.302.05 6 RUN WAVEGUIDE BRACKETWG662

1.050.09 3/8" x 2" HDG HEX BOLT GR5G3802123

0.190.01 3/8" HDG USS FLATWASHERG38FW164

0.110.01 3/8" HDG LOCKWASHERG38LW165

0.540.03 3/8'' HDG HEAVY 2H HEX NUTG38NUT166

1.050.537 3/8 inSPLICE FOR GRIP STRUTSPLICE27

0.280.07 3/8" x 2-1/2" HDG HEX BOLT GR5G3821248

TOTAL WT. # 118.69

UNIVERSAL LADDER ATTACHMENT KIT

P/N: CLK-U (SOLD SEPARATELY) USE AT LEAST 2 KITS PER 20' SECTION

FITS ANGLES

2" TO 5"

1" TO 4-1/2"

ROUND MEMBERS

DESCRIPTION

DRAWING USAGE CHECKED BY

ENG. APPROVALDRAWN BY

DWG. NO.

CPD NO.

CEK

BMC 7/13/2017

6/20/2017 VFA6-SD-S

6' STANDARD DUTY

V-FRAME ASSEMBLY

W/ 1 STIFF ARMS

CUSTOMER VFA6-SD-S

CLASS SUB

PART NO.

81 02

P A

G E

TOLERANCES ON DIMENSIONS, UNLESS OTHERWISE NOTED ARE:

SAWED, SHEARED AND GAS CUT EDGES (± 0.030")

DRILLED AND GAS CUT HOLES (± 0.030") - NO CONING OF HOLES

LASER CUT EDGES AND HOLES (± 0.010") - NO CONING OF HOLES

BENDS ARE ± 1/2 DEGREE

ALL OTHER MACHINING (± 0.030")

ALL OTHER ASSEMBLY (± 0.060")

TOLERANCE NOTES

PROPRIETARY NOTE:

THE DATA AND TECHNIQUES CONTAINED IN THIS DRAWING ARE PROPRIETARY INFORMATION OF VALMONT INDUSTRIES AND CONSIDERED A TRADE SECRET. ANY USE OR DISCLOSURE WITHOUT THE CONSENT OF

VALMONT INDUSTRIES IS STRICTLY PROHIBITED.

Engineering Support Team:

1-888-753-7446 valmont

Locations:

New York, NY Atlanta, GA Los Angeles, CA Plymouth, IN Salem, OR Dallas, TX

PARTS LIST

NET WT.UNIT WT.LENGTHPART DESCRIPTIONPART NO.QTYITEM

90.6945.34 SUPPORT ARM FOR STANDARD DUTY V-FRAME ASSEMBLYX-VFASD21

15.0815.08 DIAGONAL SLOT WELDMENT FOR BCAM SDX-SDTFLB12

16.6316.63 MULTI-HOLE TAPER PLATE WELDMENTX-SDMHTP13

18.189.0911 1/16 inPIVOT PLATEX-SDPP24

17.738.8612 inBENT BACKING PLATEX-LCBP225

8.488.48 STRAIGHT SLOT WELDMENT FOR BCAMX-SDCAMSS16

11.745.875 1/2 inSLIDING PIPE TIE BACK PLATEX-SPTB27

1.431.43 POSITIONING PLATE WELDMENT FOR BCAMX-SDCAMSP18

4.012.01 TIE BACK CLIP ANGLEX-TBCA29

14.833.716 inCROSSOVER PLATE 2-3/8" X 2-3/8"SCX1410

7.193.5912 1/16 inCLAMP HALF 1/2" THICK, 11-5/8" LONGMCP211

9.452.368 1/8 in1/2" THICK, 5-3/4" CNTER TO CENTER CLAMP HALFDCP412

53.8226.9184 in2-3/8" X 84" SCH 40 GALVANIZED PIPEP284213

40.7540.75126 in2-3/8" X 126" (2" SCH. 40) GALVANIZED PIPEP2126114

1.890.472 1/4 in3/4''-10 X 2-1/4" A325 BOLTA34214415

0.240.06 3/4" HDG USS FLATWASHERG34FW416

0.170.04 3/4" HDG LOCKWASHERG34LW417

0.850.21 3/4'' HDG HEAVY 2H HEX NUTG34NUT418

2.091.05 5/8" x 12" THREADED ROD (HDG.)G58R-12219

1.390.70 5/8" x 8" THREADED ROD (HDG.)G58R-8220

4.001.00 5/8" X 2-5/8" X 4-1/2" X 2" U-BOLT (HDG.)X-UB5258421

1.780.44 5/8" x 4" HDG HEX BOLT GR5 G5804422

0.540.27 5/8" x 2" HDG HEX BOLT GR5 G5802223

0.700.071/8 in5/8" HDG USS FLATWASHERG58FW1024

0.420.03 5/8" HDG LOCKWASHERG58LW1625

2.340.13 5/8'' HDG HEAVY 2H HEX NUTG58NUT1826

6.690.84 1/2" x 15" THREADED ROD (HDG.)G12R-15827

13.250.66 1/2" X 2-1/2" X 4-1/2" X 2" GALV. U-BOLTX-UB12122028

0.820.415 1/2 in1/2'' x 6-1/2" HDG HEX BOLT GR5 FULL THREADG12065229

0.300.304 1/2 in1/2'' x 4.5" HDG HEX BOLT GR5 FULL THREADG12045130

1.410.182 in1/2'' x 2" HDG HEX BOLT GR5G1202831

1.810.033/32 in1/2" HDG USS FLATWASHERG12FW5332

0.920.011/8 in1/2" HDG LOCKWASHERG12LW6633

4.800.07 1/2'' HDG HEAVY 2H HEX NUTG12NUT6734

TOTAL WT. # 347.01

A UPDATED BCAM VERSION 1 TO BCAM VERSION 2 CEK 8/17/2018

REVISION HISTORY

REV DESCRIPTION OF REVISIONS CPD BY DATE

ENG. APPROVALDRAWN BY

DWG. NO.

CPD NO.

CEK

BMC 7/13/2017

6/20/2017 VFA6-SD-S

6' STANDARD DUTY

V-FRAME ASSEMBLY

W/ 1 STIFF ARMS

CUSTOMER VFA6-SD-S

CLASS SUB

PART NO.

81 02

P A

G E

TOLERANCES ON DIMENSIONS, UNLESS OTHERWISE NOTED ARE:

SAWED, SHEARED AND GAS CUT EDGES (± 0.030")

DRILLED AND GAS CUT HOLES (± 0.030") - NO CONING OF HOLES

LASER CUT EDGES AND HOLES (± 0.010") - NO CONING OF HOLES

BENDS ARE ± 1/2 DEGREE

ALL OTHER MACHINING (± 0.030")

ALL OTHER ASSEMBLY (± 0.060")

TOLERANCE NOTES

PROPRIETARY NOTE:

THE DATA AND TECHNIQUES CONTAINED IN THIS DRAWING ARE PROPRIETARY INFORMATION OF VALMONT INDUSTRIES AND CONSIDERED A TRADE SECRET. ANY USE OR DISCLOSURE WITHOUT THE CONSENT OF

VALMONT INDUSTRIES IS STRICTLY PROHIBITED.

Engineering Support Team:

1-888-753-7446 valmont

Locations:

New York, NY Atlanta, GA Los Angeles, CA Plymouth, IN Salem, OR Dallas, TX

LOWER

A -2.5° to 2.5°

1.7° to 6°B

UPPER

ANGLE CALIBRATING PROCEDURE:

1. MEASURE TOWER TAPER

AND PICK LOWER BRACKET

HOLE:

HOLE A = -2.5° TO 2.5°

HOLE B = 1.7° TO 6°

2. USE CALIBRATING BOLT

TO ADJUST FRAME TO

DESIRED TAPER

3. TORQUE LOCKING BOLTS

TO 50 ft.-lbs.

4. ADVANCE LOCKING NUT

TO POSITIONING PLATE,

THEN TIGHTEN.

8 13/32" ± 1-1/4"

31 15/16"

72" ±

30" VARIABLE

1-1/2" TO 8-5/8"

DIAMETER LEG

20°

MAX.

20°

MAX.

STEP 2

STEP 4

STEP 3

A UPDATED BCAM VERSION 1 TO BCAM VERSION 2 CEK 8/17/2018

DETAIL A

DETAIL B

DETAIL C

DETAIL D

DETAIL E DETAIL F

DETAIL G

DESCRIPTION

DRAWING USAGE CHECKED BY

ENG. APPROVALDRAWN BY

DWG. NO.

CPD NO.

CEK

BMC 7/13/2017

6/20/2017 VFA6-SD-S

6' STANDARD DUTY

V-FRAME ASSEMBLY

W/ 1 STIFF ARMS

CUSTOMER VFA6-SD-S

CLASS SUB

PART NO.

81 02

P A

G E

TOLERANCES ON DIMENSIONS, UNLESS OTHERWISE NOTED ARE:

SAWED, SHEARED AND GAS CUT EDGES (± 0.030")

DRILLED AND GAS CUT HOLES (± 0.030") - NO CONING OF HOLES

LASER CUT EDGES AND HOLES (± 0.010") - NO CONING OF HOLES

BENDS ARE ± 1/2 DEGREE

ALL OTHER MACHINING (± 0.030")

ALL OTHER ASSEMBLY (± 0.060")

TOLERANCE NOTES

PROPRIETARY NOTE:

THE DATA AND TECHNIQUES CONTAINED IN THIS DRAWING ARE PROPRIETARY INFORMATION OF VALMONT INDUSTRIES AND CONSIDERED A TRADE SECRET. ANY USE OR DISCLOSURE WITHOUT THE CONSENT OF

VALMONT INDUSTRIES IS STRICTLY PROHIBITED.

Engineering Support Team:

1-888-753-7446 valmont

Locations:

New York, NY Atlanta, GA Los Angeles, CA Plymouth, IN Salem, OR Dallas, TX

OROR 2219

2-3/8" ANTENNA MOUNTING PIPES

(ORDERED SEPARATELY)

7/16" LUG HOLES

REVIEW CARRIER STANDARDS FOR

PROPER SURFACE PREPARTION AND

ASSEMBLY OF ELECTRICAL CONNECTIONS

9/16" SLOTTED HOLE

FOR EQUIPMENT PIPE U-BOLT

A UPDATED BCAM VERSION 1 TO BCAM VERSION 2 CEK 8/17/2018

ENG. APPROVALDRAWN BY

DWG. NO.

CPD NO.

CEK

BMC 7/13/2017

6/20/2017 VFA6-SD-S

6' STANDARD DUTY

V-FRAME ASSEMBLY

W/ 1 STIFF ARMS

CUSTOMER VFA6-SD-S

CLASS SUB

PART NO.

81 02

P A

G E

TOLERANCES ON DIMENSIONS, UNLESS OTHERWISE NOTED ARE:

SAWED, SHEARED AND GAS CUT EDGES (± 0.030")

DRILLED AND GAS CUT HOLES (± 0.030") - NO CONING OF HOLES

LASER CUT EDGES AND HOLES (± 0.010") - NO CONING OF HOLES

BENDS ARE ± 1/2 DEGREE

ALL OTHER MACHINING (± 0.030")

ALL OTHER ASSEMBLY (± 0.060")

TOLERANCE NOTES

PROPRIETARY NOTE:

THE DATA AND TECHNIQUES CONTAINED IN THIS DRAWING ARE PROPRIETARY INFORMATION OF VALMONT INDUSTRIES AND CONSIDERED A TRADE SECRET. ANY USE OR DISCLOSURE WITHOUT THE CONSENT OF

VALMONT INDUSTRIES IS STRICTLY PROHIBITED.

Engineering Support Team:

1-888-753-7446 valmont

Locations:

New York, NY Atlanta, GA Los Angeles, CA Plymouth, IN Salem, OR Dallas, TX

UNISTRUT AND HARDWARE

SOLD SEPARATELY.

REQUIRES 3/8" HARDWARE

EQUIPMENT PIPE AND HARDWARE

SOLD SEPARATELY.

REQUIRES 1/2" HARDWARE

AND 2-3/8" TO 4-1/2" O.D. PIPE

A UPDATED BCAM VERSION 1 TO BCAM VERSION 2 CEK 8/17/2018

File details come from the government source that posted it. Updated Apr 22, 2026.