70Z08826B0000123-Replace ATON-Appendix A.pdf

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SOURCES SOUGHT NOTICE to identify firms capable of performing ATON Repair & Replace Work at Base Tongue Point/Columbia River, Astoria, OR
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70Z08826B0000123
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About this file

This is a Rebuild ATON (Aid to Navigation) Oakland Harbor specification document detailing structural reconstruction requirements for navigation aids across multiple U.S. waterways, primarily in the Pacific Northwest region. The document, referenced as PSN 18866153, contains comprehensive technical specifications organized into base and option items spanning five operational bases.

The project encompasses the demolition and replacement of existing navigation structures with new steel pile configurations. Base 0001 items include seven navigation aids in the Cascade Rapids, Fashion Reef, Wind Mountain, and Stevenson areas, requiring conversion from wooden or mixed-material structures to multiple or single pile steel structures with varying tower heights (ranging from 5x5 to 7x7 configurations) and focal planes between 12 and 27 feet above Mean High Water. Base 0002 consists of 13 items in the Chinook Channel, Cathlamet Bay, and North Channel areas, predominantly converting buoys and wooden structures to single or three-pile steel structures with reduced headers. Options 0003 through 0005 contain additional items across Lake Wallula, Lake Umatilla, Hood River, Multnomah Falls, and other locations, with similar conversion requirements. Construction specifications include pile penetration depths of 30 feet below mudline, safety climb device installations, ladder extensions, dayboards, underwater work requirements, diving services, post-construction surveys, and photographic documentation. All structures require adherence to specified ATON standard drawings, with detailed notations addressing site-specific requirements including archaeological monitoring for certain Lake Wallula locations and eelgrass surveys for Chinook Channel items.

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(Recommend Printing on 11" x 17" paper or larger) PSN 18866153 Rebuild ATON Oakland Harbor

Base /O ptio n Ite m

Aid Nam e (O ld Nam e)

LLN

R

Chart

Exis tin g S tru ctu re

Acti on to

Exis tin g S tru ctu re

Curre nt L ati tude

Curre nt L ongit ude

Ty pe o f S tru ctu re to

Build

In W ate r W ork?

New La tit ude

New Lo ngit ude

Fo ca l P lan e ab ove

M

HW / C

RD

(As L ist ed in Appendix

B)

Pile Pen etr ati on: B elow

Mudlin e (ft

Wate r M

LLW

Depth (ft

Tid al

Ran ge

(ft

Out o f w ate r P ile Le ngth (ft

Fo ca l P lan e ab ove

Pile

Le ngth to Plat form

Le ngth of P ipe p er Pile

# o f P ile s

To tal

Pipe L ength

Need ed

Orie ntat ion of C omponents

(D egre es T rue)

# of L ad der S ec tio ns o n Pile

Ty pe o f L

EB: L

ad der E xte nsio n

Brac ke t (q uan tit y)

Insta lla tio n of S afe ty

Clim b

Devic e

Divi ng S ervi ce s R equire d

Photogra phs R equire d af ter

Constr ucti on

Su rve y R equire d af ter

Constr ucti on?

Day board s

ATON ST

D Draw ing

GFM

to be P rovid ed

Notes

New Construction Structural Details (units in feet) Additional Requirement DetailsNew ConstructionExisting Structure

Base 0001 Stevenson Lower RR LT 11830 18532 MPW w/ steel tower

Demolish & replace w/ MPS 7x7 tower w/ 10x10 platform

45-40- 27.400N

121-54- 31.654W

Four Pile Steel Range w/ 7x7 25ft tower & 10x10 platform

Y 45-40-

27.36794N 121-54-

31.61870W 20 See Note 30 11 0 20 0 20 61 4 244

Dayboard at 058°;

ladder at 238°

2 4 Yes No Yes Yes (1) 6KRB

6-1, 6-2, 6-3, 8-1, 8- 2, 8-3, 8-4, 8-5, 8-

6, 8-7, 8-8, 12-3, 12- 4, 14-1, 11-1, 14-1

Dayboard, (2) ladder sections, (4)LEB 10x0-1 (4)

U bolts

See Appendix B. Platform shall be 20 ft above MOP with 25 ft 7x7 tower.

Base 0001 Bonneville Pool LT 22 11855 18532 MPC (on shore) Demolish & replace w/ MPS w/ 5x5 basket 45-41-

53.715N 121-48- 37.321

Three Pile Steel Structure w/ 5x5 basket Y

45-41- 53.400N

121-48- 49.200W

17 30 16 0 12 5 N/A 58 3 174 Dayboards at 325° and 055°; ladder at

235° 2 4 No No Yes No (2) 6TR

03-1, 11-1, 13-1, 9-

Dayboard, (2) ladder section, (4)LEB 5x5-3. (4) U bolts

Base 0001 Bonneville Pool LT 23 11860 18532 MPW w/ wooden basket

Demolish & replace w/ MPS w/ reduced header. May be moved within a 30 ft radius of original position.

45-41- 48.291N

121-44- 14.035W

Three Pile Steel Structure w/ reduced header Y

45-41- 48.291N

121-44- 14.035W

15 30 20 0 10 5 N/A 60 3 180 Dayboards at 145° and 235°; ladder at

325° 1 2 No No Yes No (2) 4SG

03-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Base 0001 Wind Mountain Upper RF LT 26 11870 18532 MPW w/ wooden platform

Demolish & replace w/ MPS w/ 7x7 tower w/ 10x10 platform

45-41- 34.443N

121-42- 09.203W

Four Pile Steel Range w/ 7x7 35ft tower & 10x10 platform

Y 45-41-

34.64637N 121-42-

12.60793W 12 See Note 30 18 0 12 0 N/A 60 4 240

Dayboards at 275° and 015°; ladder at

325° 1 2 No No Yes Yes

(1) 8KRB &

(1) 4TR

6-1, 6-2, 6-3, 8-1, 8- 2, 8-3, 8-4, 8-5, 8-

6, 8-7, 8-8, 12-3, 12- 4, 14-1, 11-1

Dayboard, (2) ladder sections, (4)LEB 5x5-3. (4)

U bolts

See appendix B. Platform shall be 12 feet above MOP with 10 ft 7x7 tower.

Base 0001 Wind Mountain Upper RR LT 11875 18532 MPW w/ steel tower

Demolish & replace w/ MPS 7x7 tower w/ 10x10 platform

45-41- 31.222N

121-41- 16.530W

Four Pile Steel Range w/ 7x7 35ft tower & 10x10 platform

Y 45-41-

31.63889N 121-41-

23.48612W 20 See Note 30 23 0 20 0 20 73 4 292

Dayboard at 275°;

ladder at 095°

1 2 Yes No Yes Yes (1) 8KRB

6-1, 6-2, 6-3, 8-1, 8- 2, 8-3, 8-4, 8-5, 8-

6, 8-7, 8-8, 12-3, 12- 4, 14-1, 11-1, 14-1

Dayboard, (1) ladder section, (2)LEB 10x10-1.

(2) U bolts

See Appendix B. Platform shall be 20 ft above MOP with 35 ft 7x7 tower.

Base 0001 Fashion Reef Lower RF LT 11630 18531 MPW w/ wooden range platform Demolish & replace w/ MPS w/ 7x7 basket 45-35-

06.421N 122-07-

37.727W

Three Pile Steel Structure w/ 7x7 basket Y

45-35- 05.46157N

122-07- 43.81147W

23 30 17 0 18 5 N/A 65 3 195 Dayboard at 258°;

ladder at 078° 2 4 Yes No Yes Yes (1) 6KRB

04-1, 11-1, 13-1, 12- 1, 12-2, 9-3, 14-1

Dayboard, (2) ladder sections, (4)LEB 5x5-3. (4)

U bolts See Appendix B.

Base 0001 Fashion Reef Lower RR LT 11635 18531 MPW tower w/ wooden platform

Demolish & replace w/ MPS w/ 30ft 7x7 tower & 10x10 platform

45-35- 10.673N

122-07- 09.506W

Four Pile Steel Range w/ 30ft 7x7 tower & 10x10 platform

Y 45-35-

11.69498N 122-07-

02.57097W 21 See Note 30 8 0 21 0 35 59 4 236

Dayboard at 258°;

ladder at 078°

2 4 Yes No Yes Yes (1) 8KRB

6-1, 6-2, 6-3, 8-1, 8- 2, 8-3, 8-4, 8-5, 8-

6, 8-7, 8-8, 12-3, 12- 4, 14-1, 11-1, 14-1

Dayboard, (2) ladder sections, (4) LEB 5x5-3. (4)

U bolts

See Appendix B. Platform shall be at 21 feet CRD with 30 feet of 7x7 tower.

Base 0001 Cascade Rapids Upper RF LT 15 11805 18532 MPW w/ steel tower Demolish & replace w/ MPS w/ 7x7 basket 45-41-

18.392N 121-53-

06.694W

Three Pile Steel Structure w/ 7x7 basket Y

45-41- 17.86214N

121-53- 07.16150W

27 30 18 4 22 5 N/A 74 3 222 Dayboards at 211° and 121°; ladder at

031° 2 4 Yes No Yes Yes

(1) 6KRB &

(1) 4SG

04-1, 11-1, 13-1, 12- 1, 12-2, 9-3, 14-1

Dayboard, (2) ladder sections, (4)LEB 5x5-3. (4)

U bolts See Appendix B

Base 0001 Elochoman DBN 1 10535 18523 3rd class CFR buoy

See appendix B

Remove buoy system and replace with SPS w/ reduced header system

46-12- 15.733N

123-23- 23.687W

Single Pile Steel Structure w/ reduced header Y

46-12- 16.700N

123-23- 23.700W

17 30 11 0 12 5 N/A 53 1 53 Dayboards at 010° and 220°; ladder at

100° 1 2 No No Yes No (3) 4SG

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Base 0001 Elochoman DBN 2 10540 18523 Single Pile Steel I- Beam (SPS) with platform.

Demolish & replace with SPS w/ reduced header

46-12- 29.450N

123-23- 18.733W

Single Pile Steel Structure w/ reduced header Y

46-12- 29.450N

123-23- 18.733W

17 30 9 0 12 5 N/A 51 1 51 Dayboards at 145° and 260°; ladder at

220° 1 2 No No Yes No (2) 3TR

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Base 0002 Cathlamet Bay North DBN 4 14750 18521 FWNFR Buoy See appendix B

Remove buoy system and replace with SPS w/ reduced header system

46-12- 17.026N

123-42- 20.181W

Single Pile Steel Structure w/ reduced header Y

46-12- 22.700N

123- 42.29.100W

15 30 7 7 10 5 N/A 54 1 54 Dayboards at 130T and 285T; ladder at

045T 1 2 No no Yes No (2) 4TR

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Base 0002 Chinook Channel Light 1 14520 18521 SPS w/ 5x5 basket Demolish & replace with new MPS w/ reduced header

46-15- 31.472N

123-58- 11.922W

Three Pile Steel Structure w/

Reduced header Y

46-15- 26.800N

123-58-15.3W 17 30 13 7 12 5 N/A 62 3 186 Dayboards at 050° and 215°; ladder at

125° 1 2 No No Yes No (2) 4SG

03-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts Eelgrass survey required

Base 0002 Chinook Channel Light 2 14525 18521 Five Pile Wood

(MPW) with wood basket

Demolish & replace with SPS w/ reduced header

46-15- 46.915N

123-57- 39.001W

Single Pile Steel Structure w/ reduced header Y

46-15- 47.400N

123-57- 39.600W

17 30 5 7 12 5 N/A 54 1 54 Dayboards at 040T and 240T; ladder at

330T 1 2 No No Yes No (2) 4TR

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts Eelgrass survey required

Base 0002 Chinook Channel Light 3 14527 18521 FWCFR Buoy See appendix B

Remove buoy system and replace with SPS w/ reduced header system

46-15- 49.082N

123-57- 41.211W

Single Pile Steel Structure w/ reduced header Y

46-15- 49.200N

123-57- 41.200W

17 30 6 7 12 5 N/A 55 1 55 Dayboards at 045T and 245T; ladder at

225T 1 2 No No yes No (2) 4SG

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts Eelgrass survey required

Base 0002 Chinook Channel Light 4 14528 18521 FWNFR Buoy See appendix B

Remove buoy system and replace with SPS w/ reduced header system

46-16- 01.722N

123-57- 19.105W

Single Pile Steel Structure w/ reduced header Y

46-15- 58.800N

123-57- 21.300W

15 30 7 7 10 5 N/A 54 1 54 Dayboards at 010° and 225°; ladder at

260° 1 2 No No Yes No (2) 4TR

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts Eelgrass survey required

Base 0002 Chinook Channel Light 5 14530 18521 Five Pile Wood

(MPW) with wood basket

Demolish & replace with SPS w/ reduced header

46-16- 02.734N

123-57- 21.857W

Single Pile Steel Structure w/ reduced header Y

46-16- 02.900N

123-57- 21.300W

15 30 5 6 10 5 N/A 51 1 51 Dayboards at 020T and 225T; ladder at

125T 1 2 No No Yes No (2) 4SG

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts Eelgrass survey required

Base 0002 Chinook Channel Light 8 14535 18521 Five Pile Wood

(MPW) with wood basket

Demolish & replace with SPS w/ reduced header

46-16- 19.975N

123-57- 11.454W

Single Pile Steel Structure w/ reduced header Y

46-16- 20.500N

123-57- 11.800W

15 30 5 6 10 5 N/A 51 1 51 Dayboards at 065°, and 335°; ladder at

155° 1 2 No No yes No (2) 4TR

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts Eelgrass survey required

Base 0002 North Channel Daybeacon 10 14635 18521 Three Pile

Wooden Structure

(MPW)

Demolish & replace with SPS w/ reduced header

46-15- 46.471N

123-47- 14.460W

Single Pile Steel Structure w/ reduced header Y

46-15- 46.471N

123-47- 14.460W

17 30 10 7 12 5 N/A 59 1 59 Dayboards at 070T and 230T; ladder at

315T 1 2 No No yes No (2) 4TR

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Base 0002 North Channel Daybeacon 12 14640 18521 Two Pile wood structure (MPW) Demolish & replace with SPS w/ reduced header 46-16-

03.256N 123-46-

28.009W

Single Pile Steel Structure w/ reduced header Y

46-16- 03.256N

123-46- 28.009W

16 30 10 7 11 5 N/A 58 1 58 Dayboards at 060T and 250T; ladder at

320T 1 2 No No Yes No (2) 4TR

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Base 0002 Grays Point Light 13 14645 18521 Single Pile Steel I- Beam (SPS) with platform.

Demolish & replace with SPS w/ reduced header

46-16- 23.296N

123-46- 00.469W

Single Pile Steel Structure w/ reduced header Y

46-16- 23.296N

123-46- 00.469W

16 30 10 7 11 5 N/A 58 1 58 Dayboards at 025T and 240T; ladder at

140T 1 2 No No Yes No (2) 4SG

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Option 0003 Homly Center Channel LT 1 12985 18542 SPS w/ 5x5 basket Demolish & Replace w/ SPS w/ reduced header 46-08-

06.052N 118-58-

59.557W

Single Pile Steel Structure wi/ reduced header Y

46-08- 06.052N

118-58- 59.557W

17 30 10 0 13 5 N/A 53 1 53 Dayboards at 145°and 335°;

ladder at 060°

1 2 No No Yes No (3) 4SG 01-1, 11-1, 13-1, 9-

Dayboards, (1) ladder section, (2) LEB 5x5 (2) U-

Bolts

Replace structure destroyed and knocked over by the Tug& Barge

Cascades (Shaver Transportation). May be moved 25 FT to the southwest to reach depth of 10 FT MPL.

Option 0003 Lake Wallula LT 30 12995 18542 MPW w/ wooden basket Demolish & replace w/ SPS w/ reduced header 46-07-

51.499N 118-57-

50.962W

Single Pile Steel Structure w/ reduced header Y

46-07- 51.499N

118-57- 50.962W

17 30 15 0 12 5 N/A 57 1 57 Dayboards at 180° and 270°; ladder at

090° 1 2 No Yes Yes No (2) 4TR

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Demo must be via cutting off at mudline and removing. Vibratory hammer shall not be used due to archealogical nature of this site. Archeological monitor required

Option 0003 Lake Wallula LT 34 13000 18542 MPW w/ wooden basket Demolish & replace w/ SPS w/ reduced header 46-08-

52.718N 118-58-

40.700W

Single Pile Steel Structure w/ reduced header Y

46-08- 52.718N

118-58- 40.700W

17 30 13 0 12 5 N/A 55 1 55 Dayboards at 170° and 260°; ladder at

080° 1 2 No Yes Yes No (2) 4TR

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Demo must be via cutting off at mudline and removing. Vibratory hammer shall not be used due to archealogical nature of this site .Archeological monitor required

Option 0003 Lake Wallula DBN 44 13045 18542 MPW w/ dolphin Demolish & replace w/ SPS w/ reduced header 46-12-

09.868N 119-03-

31.128W

Single Pile Steel Structure w/ reduced header Y

46-12- 09.100N

119-03- 27.900W

17 30 15 0 12 5 N/A 57 1 57 Dayboards at 150° and 240°; ladder at

060° 1 2 No Yes Yes No (2) 4TR

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Demo must be via cutting off at mudline and removing. Vibratory hammer shall not be used due to archealogical nature of this site. Archeological monitor required

Option 0003 Lake Wallula LT 52 13060 18543 MPW w/ wooden basket Demolish & replace w/ MPS w/ 5x5 basket 46-14-

02.086N 119-11-

26.310W

Three Pile Steel Structure w/ 5x5 basket Y

46-14- 02.086N

119-11- 26.310W

20 30 25 0 15 5 N/A 70 3 210 Dayboards at 055°, 145° and 235°;

ladder at 325°

1 2 Yes Yes Yes No (3) 4TR 03-1, 11-1, 13-1, 9-

2, 14-1

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Demo must be via cutting off at mudline and removing. Vibratory hammer shall not be used due to archealogical nature of this site. Archeological monitor required

Option 0003 Lake Wallula DBN 68 13085 18543 MPW w/ dolphin Demolish & replace w/ SPS w/ reduced header 46-16-

21.526N 119-15-

43.266W

Single Pile Steel Structure w/ reduced header Y

46-16- 21.526N

119-15- 43.266W

15 30 15 0 10 5 N/A 55 1 55 Dayboards at 160° and 250°; ladder at

070° 1 2 No Yes Yes No (2) 4TR

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Demo must be via cutting off at mudline and removing. Vibratory hammer shall not be used due to archealogical nature of this site. Archeological monitor required

Option 0003 Lake Wallula West Channel Junction LT "W"

12980 18542 N/A Build new MPS w/ reduced header 46-07-

34.114N 118-58-

18.996W

Three Pile Steel Structure w/ reduced header Y

46-07- 34.098N

118-58- 18.936W

20 30 18 0 15 5 N/A 63 3 189 Dayboards at 155° and 335°; ladder at

245° 1 2 Yes No Yes No (2) 4JG

03-1, 11-1, 13-1, 9- 1, 14-1

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Option 0003 Hood River Boat Basin DBN 1 (Remove Only)

11956 18532 MPW w/ wooden platform Demo only

45-42- 59.994N

121-430- 34.531W

N/A Y N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

Option 0004 Lake Umatilla LT 13 12460 18535 Metal tripod w/ basket Demolish & replace w/ SPS w/ reduced header 45-42-

02.432N 120-26-

30.178W

Single Pile Steel Structure w/ reduced header Y

45-42- 02.443N

120-26- 30.178W

20 30 12 0 15 5 N/A 57 1 57 Dayboards at 125° and 215°; ladder at

305° 1 2 Yes Yes Yes No (2) 4SG

01-1, 11-1, 13-1, 9- 1, 14-1

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Demo must be via cutting off at mudline and removing. Vibratory hammer shall not be used due to archealogical nature of this site.

Option 0004 Lake Umatilla LT 30 12535 18537 Steel I-Beam w/ steel supports & basket

Demolish & replace w/ MPS w/ 5x5 basket

45-49- 26.812N

119-55- 52.830W

Three Pile Steel Structure w/ 5x5 basket Y

45-49- 26.812N

119-55- 52.830W

20 30 28 0 15 5 N/A 73 3 219 Dayboards at 090° and 270°; ladder at

180° 1 2 Yes No Yes No (2) 4TR

03-1, 11-1, 13-1, 9- 2, 14-1

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Option 0004 Lake Umatilla LT 36 12560 18537 Metal tripod w/ basket Demolish & replace w/ SPS w/ reduced header 45-50-

42.563N 119-46-

58.881W

Single Pile Steel Structure w/ reduced header Y

45-50- 42.563N

119-46- 58.881W

17 30 23 0 12 5 N/A 65 1 65 Dayboards at 045° and 315°; ladder at

225° 1 2 No No Yes No (2) 4TR

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Option 0004 Lake Umatilla LT 40 12605 18537 Steel I-Beam w/ steel supports & basket

Demolish & replace w/ SPS w/ reduced header

45-51- 10.936N

119-41- 25.740W

Single Pile Steel Structure w/ reduced header Y

45-51- 10.936N

119-41- 25.740W

17 30 5 0 12 5 N/A 47 1 47 Dayboards at 040° and 310°; ladder at

220° 1 2 No No Yes No (2) 4TR

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Option 0004 Irrigon Lower RF LT 60 12665 18539 MPS w/ concrete platform & 7x7 tower

Demolish & replace w/ MPS w/ 7x7 basket

45-54- 08.893N

119-30- 50.138W

Three Pile Steel w/ 7x7 basket

Y 45-54-

09.87294N

119-30- 52.76042W

(NAD83)

20 30 1 0 15 5 N/A 46 3 138

Dayboards at 297° and 027°; ladder at

117° 1 2 Yes No Yes Yes

(1) 6KRW &

(1) 4TR

04-1, 11-1, 13-1, 12- 1, 12-2, 9-3, 14-1

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

See Appendix B. Archeological montor required.

Option 0005 Multnomah Falls Bar RF LT 11665 18531 MPW w/ wooden platform Demolish & replace w/ MPS w/ 7x7 basket 45-34-

50.673N 122-06-

28.852W

Three Pile Steel Structure w/ 7x7 basket Y

45-34- 51.76059N

122-06- 39.93091W

24 30 22 0 19 5 N/A 71 3 213 Dayboard at 278°;

ladder at 098° 2 4 Yes No Yes Yes (1) 6KRB

04-1, 11-1, 13-1, 12- 1, 12-2, 9-3, 14-1

Dayboard, (2) ladder sections, (4)LEB 5x5-3. (4)

U bolts See Appendix B.

Option 0005 Multnomah Falls Bar RR LT 11670 18531 MPW (on shore) Demolish & replace w/ MPS

7x7 tower w/ 10x10 platform

45-34- 49.648N

122-06- 19.134W

Four Pile Steel Range w/ 15ft 7x7 tower & 10x10 platform

Y 45-34-

50.55920N 122-06-

28.79303W 21 See Note 30 5 0 21 0 30 56 4 224

Dayboard at 278°;

ladder at 098°

2 4 Yes No Yes Yes (1) 6KRB

6-1, 6-2, 6-3, 8-1, 8- 2, 8-3, 8-4, 8-5, 8-

6, 8-7, 8-8, 12-3, 12- 4, 14-1, 11-1, 14-1

Dayboard, (2) ladder sections, (4) LEB 10x10-1.

(4) U bolts

See Appendix B. Platform shall be at 21 ft CRD with 15 ft of 7x7 tower.

Option 0005 Multnomah Falls Dike LT 82 11680 18531 MPW w/ wooden platform Demolish & replace w/ SPS w/ 5x5 basket 45-34-

54.692N 122-06-

24.829W

Single Pile Steel Structure w/ 5x5 basket Y

45-34- 55.100N

122-06- 24.900W

18 30 15 2 13 5 N/A 60 1 60 Dayboards at 035° and 305°; ladder at

215° 2 4 No No Yes No (2) 6TR

01-1, 11-1, 13-1, 9-

Dayboard, (2) ladder sections, (4)LEB 5x5-3. (4)

U bolts

Option 0005 Skamania LT 85 11710 18531 MPW w/ wooden platform Demolish & replace w/ SPS w/ reduced header 45-36-

25.214N 122-03-

20.521W

Single Pile Steel Structure wi/ reduced header Y

45-36- 24.900N

122-03- 19.900W

19 30 10 0 14 5 N/A 54 1 54 Dayboards at 070° and 235°; ladder at

235° 2 4 No No Yes No (2) 4SG

01-1, 11-1, 13-1, 9-

Dayboard, (2) ladder sections, (4)LEB 5x5-3. (4)

U bolts

Option 0005 Multnomah Channel Daybeacon 3 14830 18524 Three Pile

Wooden Structure

(MPW)

Demolish & replace with SPS w/ reduced header

45-51- 54.695N

122-47- 35.468W

Single Pile Steel Structure w/ reduced header Y

45-51- 54.695N

122-47- 35.468W

17 30 5 0 12 5 N/A 47 1 47 Dayboards at 190T and 340T; ladder at

270T 1 2 No No yes No (2) 3SG

01-1, 11-1, 13-1, 9-

Dayboard, (1) ladder section, (2)LEB 5x5-3. (2) U bolts

Appendix A

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