Amendment 01--RFP LBNF-381525-RO.pdf

AMENDMENT TO SOLICITATION

AMENDMENT NO.

DATE OF AMENDMENT:

June 15, 2026

SOLICITATION NO.

RFP-LBNF-381525-RO

DATE ISSUED:

June 15, 2026

PROJECT NO.

N/A

PROPOSAL DUE DATE:

June 17, 2026

TITLE OF PROJECT:

Long-Baseline Neutrino Facility/Deep Underground Neutrino Experiment Underground Concrete

Questions and Answers - Amendment 1

The questions below were asked during the pre-proposal meeting, no other questions have been submitted by the due date for additional questions(June 12, 2026). The drawings referenced in the answer to question 2 is attached

Q1-Will space be made available for mixing concrete?

A1-Yes, a space will be designated in coordination with the successful bidder. This space will be within 100 feet of water supply and within 1,000 feet of all work locations

Q2-Are bond beams provided?

A2. Bond beams are part of the wall placement. See attached drawings that were inadvertently missed in the original solicitation.

Q3- Is a forklift available for use underground?

A3- Materials will be delivered to the point of mixing (underground mixing) or placement (surface supply) by the SDSTA Bull Gang. Any general-use forklift underground shall be provided by the successful bidder.

Q4-Is water available?

A4- Yes, water will be available within 100’ of the mixing location if mixed underground. Drinking water is also provided (bottles)

Fermi Forward Discovery Group, LLC.

206 Ellison Ct.

Lead, SD 57754 M.S 123

Russell Olliff LBNF Procurement Specialist (254)396-6155

YBYA YBYA

(0 .56

m) 1'

- 1 0 1

/4"

(2 .44

m) 8'

- 0

(0 .69

m) 2'

- 3

(0 .28

m) 0'

- 1 1 1

/8"

(0.84m) 2' - 9 1/4"

(2.44m) 8' - 0"

(0.90m) 2' - 11 1/4"

SS-803

LT

B

(1.35m) 4' - 5 1/8"

(1.35m) 4' - 5 1/8"

(3 .99 m)

1"

(1 .20

m) 3'

- 1 1 1

/4"

(0 .96

m) 3'

- 1 3/

4"

(1.42m) 4' - 8"

(2 .54

m) 8'

- 4

(1 .52

m) 5'

- 0

(0 .44

m) 1'

- 5 1/

4"

(0 .21

m) 0'

- 8 3/

8" (0.48m) 1' - 7"

(0 .95

m) 3'

- 1 3/

8"

(0.98m) 3' - 2 1/2"

(1.04m) 3' - 5"

(2) #7

(1.12m) 3' - 8 1/8"

(0.97m) 3' - 2 3/8"

(3.05m) 10' - 0"

(3 .05 m)

0"

Level 4850

SEE UG-FD-C-514 FOR MINE

DOOR AND CONCRETE

WALL DETAILING

(0 .20

m) 0'

- 8

(0.15m) 0' - 6"

(0.61m) 2' - 0"

(0 .49

m) 1'

- 7 1/

8"

(2.90m) 9' - 6"

(0.45m) 1' - 5 3/4"

(0.45m) 1' - 5 3/4"(2

.44 m)

8'

- 0

SS-803

SS-803

SIM

(4.00m)

13' - 1 1/2"(4 .00 m)

1 1

/2"

(0.50m) 1' - 7 5/8"

(0.50m) 1' - 7 5/8"

SS-803

SS-803

SIM

12" DEEP BY 8" WIDE CONC

BEAM ABOVE DOOR OPENING

W/ (2)#7 T&B AND #3

STIRRUPS @ 3" O.C.

(0.61m) 2' - 0"

(0.46m) 1' - 6"

(0 .29

m) 0'

- 1 1 1

/2"

(0 .15

m) 0'

- 6

(0.43m) 1' - 5"

(0 .56

m) 1'

- 1 0"

(0.25m) 0' - 10"

(0.69m) 2' - 3"

(0 .18

m) 0'

- 7

(0 .50

m) 1'

- 7 1/

2"

PROVIDE POUR STOP AT

TOP OF CONC BEAM.

PROVIDE SEPARATE

POURS ABOVE AND

BELOW POUR STOP LINE

(1.83m) 6' - 0"

(0 .31 m)

MI

N

1'

- 0

(0 .30 m)

MI

N

1'

- 0

(1 .02

m) 3'

- 4

(2) #7

Arup USA Inc 77 Water Street, New York NY 10005, T 212 896 3000 www.arup.com

DRAWING NO.

SCALE:

REV.

REVISIONS

DESIGNED

DRAWN

CHECKED

DESCRIPTIONDATEREV.

Fermilab Long-Baseline Neutrino Facility

K 1 /1

/2

515-1-6

UNDERGROUND, STRUCTURAL

LBNF-FSCF-BSI

IB

JA

JA ARUP WALL ELEVATIONS

SHEET 1 OF 2

U-FD-SS-601

ARUP

ARUP

1/4" = 1'-0"

SCALE: 1/4" = 1'-0"

NORTH CAVERN WEST ACCESS

WALL

SCALE: 1/4" = 1'-0"

NORTH CAVERN EAST ACCESS

WALL 1

SCALE: 1/4" = 1'-0"

1AIRLOCK 1

NOTES:

1. ALL PENETRATIONS WILL BE COORDINATED WITH

RESPECTIVE MEP CONTRACTORS.

2. FINAL PENETRATION SIZES & LOCATIONS WILL BE

SUBMITTED FOR APPROVAL IN SHOP DRAWINGS.

0 2' 4' 8'

1 03/17/23 ADDENDUM 3

2 09/14/23 ISSUED FOR PERMIT

3 11/10/23 ISSUED FOR CONSTRUCTION

4 08/19/25 IFC BULLETIN 13

5 12/19/25 IFC BULLETIN 14

SCALE: 1/4" = 1'-0"

2WASTE ACCESS DRIFT 1 WALL

SCALE: 1/4" = 1'-0"

3WEST ACCESS DRIFT WALL

KAJV Document Control QR Code http://www.arup.com

WALL REINF

#4 .

AT SPACING

OF WALL VERTS

SLAB REINF,

TYP

STD HOOK

WALL REINF

ADD (2) - #6 MIN

WALL REINF

STD HOOK

WALL REINF

FDN

OR BM

DOWELS TO MATCH

SIZE & SPACING OF

VERT WALL REINF

WALL REINF

FDN

OR BM

ADD (1) #6 MIN

DOWELS TO MATCH

SIZE & SPACING OF

VERT WALL REINF

WALL ON ROCK

M

AX3"

TOP OF WALL

M

AX3"

WALL ON ROCK

HEAD & SILL AT OPENING

TOP OF WALL (SAME FOR

LAYER WALL REINFORCING

WALL BELOW SLAB SINGLE

LAYER WALL REINFORCING

WALL BELOW SLAB DOUBLE

NOTES:

1. IF NO TIES IN THE WALL:

VERTICAL BARS ON THE INSIDE, HORIZONTAL

BARS WILL PROVIDE ENCLOSEMENT.

WATERSTOP

IF REQUIRED

DOWEL REBAR INTO

ROCK MIN 8" (0.203m) W/

HILTI HIT-HY 200, TYP

DOWEL REBAR INTO

ROCK MIN 8" (0.203m) W/

HILTI HIT-HY 200, TYP

DOUBLE LAYER PLAN

OPENING DETAILS

OPENING SEE

TYP WALL

END OF WALL

DOWELS TO MATCH

SIZE AND SPACING OF

HORIZONTAL WALL

REINF HORIZONTAL

WALL REINF

HORIZONTAL

WALL REINF

INTERSECTIONS

MAX 1/2

SPACING TYP AT

SPLICE, TYP

SCHEDULED LAP

STD HOOK,

TYP

SPACING

MAX 1/2

SPLICE, TYP

SCHEDULED LAP TY

P

LT

B

U-BARS TO MATCH SIZE AND

SPACING OF HORIZONTAL

WALL REINF

TYPICAL (FOR MOST WALLS): #4 @

SPACING OF WALL HORIZONTAL, LEG

LENGTH = 18"

DOWELS TO MATCH

SIZE AND SPACING OF

HORIZONTAL WALL

REINF

LAP SPLICE

SCHEDULED

ADDITIONAL BARS

PER TYP WALL

OPENING DETAIL

U-BARS PER TYP

WALL OPENING

DETAIL

MATCH

HORIZONTAL

#4 @ SPACING

OF HORIZONTAL

MATCH

HORIZONTAL

#5 AND SMALLER #6 AND LARGER

PIPING (CONDUIT) THROUGH WALL PIPING (CONDUIT) PARALLEL WALL

NOTE:

1. WHERE CLEAR DISTANCE BETWEEN OPENINGS IS LESS THAN MIN LISTED. THE ENTIRE AREA

(ENVELOPING THE OPENINGS) SHALL BE TREATED AS A WALL OPENING.

SEE NOTE 1

THE LARGE OF

3D OR 4" MIND

SEE NOTE 1

C.L.

OF WALL

MAX D = T/5 OR 2"

WHICHEVER IS SMALLER

THE LARGER OF

3D OR 4", MIND

T

EQEQ

CL

CL

NOTES:

1. OMIT TRIM BARS FOR SINGLE OPENING WHEN D < 6"

2. PLACE BARS IN SAME PLANE FOR WALLS 6" OR LESS.

TRIM BARS TO MATCH

WALL VERT BARS 1-#5 EF MIN

TRIM BARS TO MATCH WALL

HORIZONTAL BARS 1-#5 EF MIN

FOR D => 18"

ADD 1-#5 x 6'-0" EF

FOR WALLS 12'-0" AND THICKER

MIN CLEARANCE BETWEEN SLEEVES

IS THE LARGER DIAMETER 'D'

D

2'-0" MAX

D

2'-0" MAX

Ld

2'-0" MIN

TYP

NOTES

1. FOR LENGTH OF SPLICES SEE SCHEDULES OF SPLICE AND DEVELOPMENT LENGTHS.

2. WHERE MIN. / MAX. LENGTHS GIVEN ABOVE CANNOT BE MET, CONTRACTOR TO SUBMIT LOCATION AND DIMENSIONS TO ENGINEER FOR APPROVAL.

3. FOR SLEEVES 4" O.D. OR SMALLER NO ADDITIONAL REINFORCEMENT IS REQUIRED PROVIDED NO BARS ARE CUT, AND MINIMUM COVER TO REBAR IS MAINTAINED.

4. FOR WATERPROOFING DETAIL AT WALL PENETRATIONS & SLEEVES, SEE ARCH. DWGS.

TYPICAL WALL ELEVATION INDICATING

OPENINGS AND OTHER MISC. DETAILS

4'-0" MAX.

SPLICE TOP CONT.

SPLICE BTM. CONT.

REINF. AT SUPPORTS

2'-0" CLR. MIN.

TO MATCH BAR SPACINGLdLdLd

Ld

2'-6" MIN.

BELOW LOWEST

POINT OF WALL OR

POCKET

WALL REINF. TYP.

SEE SECTIONS

WALL REINF. TYP.

SEE SECTIONS

WALL REINF. TYP.

SEE SECTIONS

CON. TOP REINF.

WHERE OCCURS

SEE SECTIONS

(2) #6 x4'-6" TYP.

CORNER BARS.

HALF THE NUMBER OF BARS

INTERRUPTED BY OPG + 1

EACH SIDE AT 3" TYP

MID-WAY BTW.

SUPPORTS.

FTG.

BTM. CONT. REINF.

WHERE OCCURS

SEE SECTIONS

SEE TYP. WALL

END REINF. DETAIL

4 SIDES TYP.

SEE NOTE 3

(2) #6 MIN.

(2) #6 MIN. (2) #6 x4'-6" TYP.

(2) #6 MIN.

PILASTER / WALL

BEYOND

Ld Ld

18" MAX.

WALL SCHEDULE

THICKNESS (in)

VERTICAL

REINFORCEMENT

(SEE NOTE 1)

HORIZONTAL

REINFORCEMENTMARK NOTES

W1 8 #5@8"O.C. #5@8"O.C. TWO LAYERS, HORIZONTAL BARS ON OUTSIDE, VERTICAL BARS ON INSIDE

3 '

LTB#7 @ 24" OC,

EMBEDDED MIN 36"

W/ HIT-HY 200 EPOXY

TYP REBAR NOT

SHOWN FOR CLARITY

Arup USA Inc 77 Water Street, New York NY 10005, T 212 896 3000 www.arup.com

DRAWING NO.

SCALE:

REV.

REVISIONS

DESIGNED

DRAWN

CHECKED

DESCRIPTIONDATEREV.

Fermilab Long-Baseline Neutrino Facility

K 1 /1

/2

415-1-6

UNDERGROUND, STRUCTURAL

LBNF-FSCF-BSI

IB

JA

JA ARUP TYPICAL DETAILS

SHEET 6 OF 6

U-FD-SS-706

ARUP

ARUP

N.T.S.

SCALE: NTS

TYPICAL CONCRETE WALL

REINFORCING SECTIONS

SCALE: N.T.S.

TYPICAL WALL REINFORCING

DETAIL

SCALE: N.T.S.

3PIPE PENETRATION DETAIL

SCALE: N.T.S.

CIRCULAR OPENING REINFORCING

DETAIL

SCALE: N.T.S.

5TYPICAL CIP WALL DETAILS

SCALE: 3/8" = 1'-0"

CONCRETE WALL TO ROCK

DETAILING

1 12/04/20 100% FD UPDATE

2 Date 23 ADDENDUM 4

3 09/14/23 ISSUED FOR PERMIT

4 11/10/23 ISSUED FOR CONSTRUCTION

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