24072 ROA - Rehabilitate Runway 6-24 - Addendum Two (2).pdf

ADDENDUM NO. TWO (2)

Addendum No. Two (2) 1

REHABILITATE RUNWAY 6-24

ROANOKE-BLACKSBURG AIRPORT

ROANOKE, VIRGINIA

AIP PROJECT NO. 3-51-0049-PENDING

DELTA PROJECT NO. 24072

JUNE 19, 2026

From: Delta Airport Consultants, Inc.

2700 Polo Parkway

Midlothian, VA 23113

To: All Bidders of Record

This Addendum is hereby made part of the contract documents and specifications of the above-referenced project. All other requirements of the original specification shall remain in effect in their respective order. Acknowledge receipt of this addendum by inserting its number and date in the proposal form.

PROPOSAL

1. The revised Bid Schedule for all three alternates are attached to this Addendum No. Two

(2).

SPECIFICATIONS

1. REVISE the first sentence of Section M-103-2.1 Lighted Portable (Mobile) Closed Runway

Markers to read as follows: “Lighted portable (mobile) closed runway markers shall be furnished by the Contractor. Markers shall be in accordance with AC 150/5345-55, “Specification for L-893, Lighted Visual Aid to Indicate Temporary Runway Closure” and shall be operated and maintained by the Contractor.”

2. DELETE the second paragraph of Section M-103-2.1 Lighted Portable (Mobile) Closed

Runway Markers.

ATTACHMENTS

1. Questions and Answers

2. Revised Bid Schedule

ADDENDUM NO. TWO (2)

Addendum No. Two (2) 2

END OF ADDENDUM NO. TWO (2)

ATTACHMENT NO. ONE (1)

Addendum No. Two (2) 1 Attachment No. One (1)

REHABILITATE RUNWAY 6-24

ROANOKE-BLACKSBURG AIRPORT

LOCATION

QUESTIONS AND ANSWERS

1. QUESTION: Please confirm that the Bid Bond amount is equal to 5% of the Alternate

One (1) bid amount only, and not the total “including all alternates.”

ANSWER: The Bid Bond amount shall be equal to 5% of the largest alternate.

2. QUESTION: Please clarify whether Item M-103-4.1 Lighted Portable Closed Runway

Markers is to be furnished by the owner or the contractor.

ANSWER: Lighted Portable Closed Runway Markers shall be Contractor Furnished.

See revision to Item M-103 per Addendum No. Two (2).

3. QUESTION: A question about the crack repairs. Since the repairs call for non-shrink grout which typically requires a 24-hr cure period, what was the assumed plan of attack if the runway must be reopened every morning? There isn't much time to mill, route cracks, clean and fill with grout, pave and stripe.

Plus after milling the pavement will be wet which won't help with the cleaning. We have routed and filled cracks prior to milling before, but with 3" needing milled, it isn't really possible to route deep enough to have proper grout depth after milling. We can route approx. 2" deep max. We also have done these repairs a section ahead of the paving where the area was micromilled to a smooth surface, allowing planes to still land on the grout filled crack. Would that be an option?

ANSWER: Traffic will not be allowed on a milled surface. A fast setting non-shrink grout shall be used. As an alternative a crack filler complying with ASTM

D6690, Type III shall be used. Examples are Roadsaver 222, W.R.

Meadows Sealtight 3405, P&T Products Dura-fill 3405, or equivalents.

Addendum No. Two (2) 2 Attachment No. One (1)

4. QUESTION: It appears that only the Alternate 1 bid form has a line item for 16 - P-620

1 LS REFLECTIVE MEDIA. The bid form for Alternate 2 and

Alternate 3 do not have a line item for REFLECTIVE MEDIA. Is this intentional?

ANSWER: Reflective media will be required for all final markings on each alternate.

Please see revised Bid Proposal Forms per Addendum No. Two (2).

5. QUESTION: The plan set states that all waste shall become property of the contractor and disposed of offsite. Due to the nature of firefighting foams containing

PFAS chemicals that are under CERCLA liability, will the owner consider keeping waste or millings on site to avoid the need for testing of airfield millings for contamination and cost for proper disposal of PFAS contaminated materials?

ANSWER: There is no known PFAS contamination within the project area. Should the Contractor elect to perform testing (at their cost) and evidence of

PFAS is discovered, the method and cost of disposal will be re-evaluated.

6. QUESTION: Will the owner allow traffic on a micromilled surface, with proper wedges and tie-ins, to accommodate closure constraints given that the spec and milling depth prevent pre-milling crack sealing and restrict overlay before sealant cure? Alternatively, can an adjusted work schedule be provided to allow milling, crack sealing, curing, and paving?

ANSWER: No, traffic will not be allowed on a micromilled surface. The work schedule will remain as stated in the plans.

7. QUESTION: Are there any project areas identified as contaminated with PFAS or will

Owner be carrying out testing on the project location and if so how are millings be handled / disposed of if PFAS contamination is identified

ANSWER: There is no known PFAS contamination within the project area.

Addendum No. Two (2) 3 Attachment No. One (1)

8. QUESTION: In relation to Bid Items 4 and 5, Joint and Crack Repair Type A and B respectively, is it the intent for these works to be carried out on a nightly basis after Cold Milling and prior to placement of the P-401 Surface

Course? Given the limited nighttime working possession, executing the associated routing, cleaning, drying and saw-cutting preparation works as well as the application of Crack Sealant (Type A) and placement P-

401(Type B), for unknown quantities, will be very onerous and potential impact completion of works during the limited possession time. There is also time required for the Engineer to inspect the post milled surface to identify any crack repairs required as well as post crack repair work inspection prior to the application of tack coat and P-401 surface.

As such, would the Engineer and Owner give consideration to pre-milling the runway, a length equivalent to two nights scheduled production, to enable sufficient time for joint and crack works to be identified and executed prior to P-401 surface. Alternatively, could the joint and crack areas be identified and carried out prior to the nightly milling and replacement works, i.e. two nights prior to milling and overlay works?

ANSWER: Pre-milling will not be allowed. Joint and crack repair operations will need to be assessed on a nightly basis following milling operations.

9. QUESTION: Could a survey showing the anticipated lengths and locations of the Type

A and B joint and crack repairs be provided to enable the Contractor to estimate the amount of joint and crack repairs that may be required on a nightly basis and basis for the Line Item 4 and 5 quantities.

ANSWER: A survey is not available, quantities are estimates only. Actual quantities will be determined in the field. Quantities provided assume crack repair will be needed along the existing longitudinal and transverse paving joints.

10. QUESTION: As per the detail “Temporary Runway Shoulder Overlay Tie-In” on Sheet

31, it states that the maximum drop-off between runway and shoulder is to be 3”. The Mill and Overlay details on Sheet 30 state the overlay thickness is to be minimum 3”, suggesting areas to receive over 3” of new surface layer. There are potentially locations along the runway-shoulder interface, that as per design elevations and construction details, result in exceeding the maximum 3” drop-off between runway and shoulder, as such please could you provide details the Contractor is to construct the works in such a situation to ensure compliance with FAA regulations.

Addendum No. Two (2) 4 Attachment No. One (1)

ANSWER: The Contractor shall not exceed a maximum of a three-inch drop off. The detail on Sheet 31 is provided for reference only, the Contractor is responsible for developing a laydown plan based on their means and methods.

11. QUESTION: Note 2 of the Mill and Overlay Pavement Section details on Sheet 30 states that additional 1” scab milling will be incidental to the milling pay item, but the additional asphalt to replace this 1” additional milling will be paid in accordance with the P-401 specification. Given that this potential

1” milling will require an separate and additional milling operation after the completion, and inspection by the RPR, of the profile milled surface, would consideration be given to adding a new Line Item for these additional works and does the Engineer have an estimate of what this additional quantity of milling and P-401 material may be. These quantities would also have to be factored into nightly production requirements.

ANSWER: No additional milling items are proposed. All milling will be paid under

Item P-101. Milling is anticipated to reach a sound surface based on core samples.

12. QUESTION: As per Sheet 4, the Contractors Staging Area (CSA) is shown to be airside adjacent to Gate 21. Given the amount of equipment, and back-up equipment, required to execute the project, could an additional / alternative CSA be made available in the location of the Engineers Field

Office (EFO)

ANSWER: Limited room is available by the Engineer’s Field Office for equipment and materials. There is no airside access from this location. Airside access will remain as shown on the plans.

BID SCHEDULE (Revised)

Date:

UNIT PRICES EXTENDED

ITEM ITEM WITH UNIT PRICE IN FIGURES TOTAL

NO. WRITTEN IN WORDS --------------------- ---------------------

DOLLARS DOLLARS

CENTS CENTS

C-100 1 LS

PER LUMP SUM

C-105 1 LS

PER LUMP SUM

P-101 120 SY

PER SQUARE YARD

P-101 30,000 LF

PER LINEAR FOOT

P-101 10,000 LF

PER LINEAR FOOT

P-101 183,000 SY

PER SQUARE YARD

P-152 550 CY

PER CUBIC YARD

P-209 50 CY

PER CUBIC YARD

P-401 43,600 TN

PER TON

P-603 22,000 GL

PER GALLON

MUCK EXCAVATION

CRUSHED AGGREGATE BASE COURSE

ASPHALT SURFACE COURSE

EMULSIFIED ASPHALT TACK COAT

COLD MILLING (VARIABLE DEPTH)

BID ALTERNATE ONE (1)

APPROX.

QUANTITY

CONTRACTOR QUALITY CONTROL PROGRAM (CQCP)

MOBILIZATION

PAVEMENT REMOVAL

JOINT AND CRACK REPAIR (TYPE A)

JOINT AND CRACK REPAIR (TYPE B)

Bid Schedule (Revised) - Bid Alternate One (1) Rehabilitate Runway 6-24 | 24072 - ROA

Addendum No. Two (2)

UNIT PRICES EXTENDED

ITEM ITEM WITH UNIT PRICE IN FIGURES TOTAL

NO. WRITTEN IN WORDS --------------------- ---------------------

DOLLARS DOLLARS

CENTS CENTS

BID ALTERNATE ONE (1)

APPROX.

QUANTITY

P-620 6,600 SF

PER SQUARE FOOT

P-620 6,300 SF

PER SQUARE FOOT

P-620 109,000 SF

PER SQUARE FOOT

P-620 104,200 SF

PER SQUARE FOOT

P-620 30,000 SF

PER SQUARE FOOT

P-620 1 LS

PER LUMP SUM

P-621 104,500 SY

PER SQUARE YARD

T-901 1 AC

PER ACRE

T-905 50 CY

PER CUBIC YARD

T-908 1 AC

PER ACRE

TOPSOIL (FURNISHED OFF THE SITE)

MULCHING

SEEDING

MARKING (INITIAL YELLOW)

MARKING (PERMANENT YELLOW)

MARKING (INITIAL WHITE)

MARKING (PERMANENT WHITE)

MARKING (PERMANENT BLACK)

REFLECTIVE MEDIA

GROOVING

Bid Schedule (Revised) - Bid Alternate One (1) Rehabilitate Runway 6-24 | 24072 - ROA

ITEM ITEM WITH UNIT PRICE IN FIGURES TOTAL

NO. WRITTEN IN WORDS --------------------- ---------------------

DOLLARS DOLLARS

CENTS CENTS

BID ALTERNATE ONE (1)

APPROX.

QUANTITY

L-108 20,700 LF

PER LINEAR FOOT

L-108 6,800 LF

PER LINEAR FOOT

L-109 2 UN

PER UNIT

L-110 5,400 LF

PER LINEAR FOOT

L-110 1,400 LF

PER LINEAR FOOT

L-115 1 EA

PER EACH

L-115 15 EA

PER EACH

L-125 134 EA

PER EACH

L-125 16 EA

PER EACH

L-125 26 EA

PER EACH

CONCRETE ENCASED ELECTRICAL CONDUIT, 1 WAY - 2" RGS CONDUIT

NO. 8 AWG, 5KV, L-824 TYPE C CABLE, INSTALLED IN TRENCH, DUCT BANK OR

CONDUIT

NO. 6 AWG SOLID BARE COPPER COUNTERPOISE WIRE, INSTALLED IN

TRENCH, INCLUDING CONNECTIONS/TERMINATIONS

INSTALLATION OF EQUIPMENT WITHIN EXISTING VAULT OR PREFABRICATED

METAL HOUSING IN PLACE

CONCRETE ENCASED ELECTRICAL CONDUIT, 1 WAY - 1" RGS CONDUIT

IN-PAVEMENT RUNWAY EDGE LIGHT CAN (L-867B)

EXISTING ELECTRICAL MANHOLE/JUNCTION STRUCTURE ELEVATION

ADJUSTMENT

L-860A(L) IN-PAVEMENT RUNWAY CENTERLINE LIGHT

ADJUST L-850C IN-PAVEMENT HIRL

ADJUST L-861T BASE-MOUNTED MITL

Bid Schedule (Revised) - Bid Alternate One (1) Rehabilitate Runway 6-24 | 24072 - ROA

ITEM ITEM WITH UNIT PRICE IN FIGURES TOTAL

NO. WRITTEN IN WORDS --------------------- ---------------------

DOLLARS DOLLARS

CENTS CENTS

BID ALTERNATE ONE (1)

APPROX.

QUANTITY

L-125 73 EA

PER EACH

M-103 4 EA

PER EACH

M-103 1 EA

PER EACH

M-107 3,000 LF

PER LINEAR FOOT

M-199 300 TN

PER TON

M-199 300 TN

PER TON

M-199 200 TN

PER TON

M-199 200 TN

PER TON

M-199 300 CY

PER CUBIC YARD

M-199 350 SY

PER SQUARE YARD

ADJUST L-862(L) IN-PAVEMENT HIRL

LIGHTED PORTABLE CLOSED RUNWAY MARKERS (CONTRACTOR FURNISHED)

CLOSED TAXIWAY MARKERS

AVIATION BARRICADES (CONTRACTOR FURNISHED)

VDOT, CLASS 1 RIPRAP

VDOT, NO. 1 COARSE AGGREGATE

VDOT, NO. 57 COARSE AGGREGATE

VDOT, BASE COURSE 21A

VDOT, SECTION 249, FLOWABLE FILL

CIVIL ENGINEERING FABRIC

Bid Schedule (Revised) - Bid Alternate One (1) Rehabilitate Runway 6-24 | 24072 - ROA

ITEM ITEM WITH UNIT PRICE IN FIGURES TOTAL

NO. WRITTEN IN WORDS --------------------- ---------------------

DOLLARS DOLLARS

CENTS CENTS

BID ALTERNATE ONE (1)

APPROX.

QUANTITY

40.SP 1 LS

PER LUMP SUM

41.SP 2 EA

PER EACH

Total Bid Amount $

SP-1 Non-AIP Insurance Allowance $

RUNWAY SURFACE CONDITION SENSORS

IN-PAVEMENT MANHOLE ADJUSTMENT

Bid Schedule (Revised) - Bid Alternate One (1) Rehabilitate Runway 6-24 | 24072 - ROA

UNIT PRICES EXTENDED

ITEM ITEM WITH UNIT PRICE IN FIGURES TOTAL

NO. WRITTEN IN WORDS --------------------- ---------------------

DOLLARS DOLLARS

CENTS CENTS

C-100 1 LS

PER LUMP SUM

C-105 1 LS

PER LUMP SUM

P-101 13,000 LF

PER LINEAR FOOT

P-101 3,300 LF

PER LINEAR FOOT

P-101 85,000 SY

PER SQUARE YARD

P-401 19,000 TN

PER TON

P-603 10,200 GL

PER GALLON

P-620 2,150 SF

PER SQUARE FOOT

P-620 2,000 SF

PER SQUARE FOOT

P-620 55,900 SF

PER SQUARE FOOT

BID ALTERNATE TWO (2)

APPROX.

QUANTITY

JOINT AND CRACK REPAIR (TYPE A)

JOINT AND CRACK REPAIR (TYPE B)

CONTRACTOR QUALITY CONTROL PROGRAM (CQCP)

MOBILIZATION

EMULSIFIED ASPHALT TACK COAT

MARKING (INITIAL YELLOW)

COLD MILLING (VARIABLE DEPTH)

ASPHALT SURFACE COURSE

MARKING (PERMANENT YELLOW)

MARKING (INITIAL WHITE)

Bid Schedule (Revised) - Bid Alternate Two (2) Rehabilitate Runway 6-24 | 24072 - ROA

ITEM ITEM WITH UNIT PRICE IN FIGURES TOTAL

NO. WRITTEN IN WORDS --------------------- ---------------------

DOLLARS DOLLARS

CENTS CENTS

BID ALTERNATE TWO (2)

APPROX.

QUANTITY

P-620 53,100 SF

PER SQUARE FOOT

P-620 13,300 SF

PER SQUARE FOOT

P-620 1 LS

PER LUMP SUM

P-621 44,000 SY

PER SQUARE YARD

T-901 1 AC

PER ACRE

T-905 30 CY

PER CUBIC YARD

T-908 1 AC

PER ACRE

L-108 2,600 LF

PER LINEAR FOOT

L-109 2 UN

PER UNIT

L-110 2,600 LF

PER LINEAR FOOT

MARKING (PERMANENT WHITE)

MARKING (PERMANENT BLACK)

SEEDING

TOPSOIL (FURNISHED OFF THE SITE)

REFLECTIVE MEDIA

GROOVING

INSTALLATION OF EQUIPMENT WITHIN EXISTING VAULT OR PREFABRICATED

METAL HOUSING IN PLACE

CONCRETE ENCASED ELECTRICAL CONDUIT, 1 WAY - 1" RGS CONDUIT

MULCHING

NO. 6 AWG SOLID BARE COPPER COUNTERPOISE WIRE, INSTALLED IN

TRENCH, INCLUDING CONNECTIONS/TERMINATIONS

Bid Schedule (Revised) - Bid Alternate Two (2) Rehabilitate Runway 6-24 | 24072 - ROA

ITEM ITEM WITH UNIT PRICE IN FIGURES TOTAL

NO. WRITTEN IN WORDS --------------------- ---------------------

DOLLARS DOLLARS

CENTS CENTS

BID ALTERNATE TWO (2)

APPROX.

QUANTITY

L-115 51 EA

PER EACH

L-115 10 EA

PER EACH

L-125 9 EA

PER EACH

L-125 11 EA

PER EACH

L-125 23 EA

PER EACH

M-103 4 EA

PER EACH

M-103 1 EA

PER EACH

M-107 3,000 LF

PER LINEAR FOOT

41.SP 2 EA

PER EACH

Total Bid Amount $

SP-1 Non-AIP Insurance Allowance $

ADJUST L-850C IN-PAVEMENT HIRL

ADJUST L-861T BASE-MOUNTED MITL

IN-PAVEMENT RUNWAY CENTERLINE CAN (L-868B) WITH COVER PLATE

EXISTING ELECTRICAL MANHOLE/JUNCTION STRUCTURE ELEVATION

ADJUSTMENT

CLOSED TAXIWAY MARKERS

AVIATION BARRICADES (CONTRACTOR FURNISHED)

ADJUST L-862(L) IN-PAVEMENT HIRL

LIGHTED PORTABLE CLOSED RUNWAY MARKERS (CONTRACTOR FURNISHED)

IN-PAVEMENT MANHOLE ADJUSTMENT

Bid Schedule (Revised) - Bid Alternate Two (2) Rehabilitate Runway 6-24 | 24072 - ROA

UNIT PRICES EXTENDED

ITEM ITEM WITH UNIT PRICE IN FIGURES TOTAL

NO. WRITTEN IN WORDS --------------------- ---------------------

DOLLARS DOLLARS

CENTS CENTS

C-100 1 LS

PER LUMP SUM

C-105 1 LS

PER LUMP SUM

P-101 7,000 LF

PER LINEAR FOOT

P-101 2,200 LF

PER LINEAR FOOT

P-101 45,000 SY

PER SQUARE YARD

P-401 10,500 TN

PER TON

P-603 5,400 GL

PER GALLON

P-620 300 SF

PER SQUARE FOOT

P-620 300 SF

PER SQUARE FOOT

P-620 46,500 SF

PER SQUARE FOOT

BID ALTERNATE THREE (3)

APPROX.

QUANTITY

JOINT AND CRACK REPAIR (TYPE A)

JOINT AND CRACK REPAIR (TYPE B)

CONTRACTOR QUALITY CONTROL PROGRAM (CQCP)

MOBILIZATION

EMULSIFIED ASPHALT TACK COAT

MARKING (INITIAL YELLOW)

COLD MILLING (VARIABLE DEPTH)

ASPHALT SURFACE COURSE

MARKING (PERMANENT YELLOW)

MARKING (INITIAL WHITE)

Bid Schedule (Revised) - Bid Alternate Three (3) Rehabilitate Runway 6-24 | 24072 - ROA

ITEM ITEM WITH UNIT PRICE IN FIGURES TOTAL

NO. WRITTEN IN WORDS --------------------- ---------------------

DOLLARS DOLLARS

CENTS CENTS

BID ALTERNATE THREE (3)

APPROX.

QUANTITY

P-620 45,100 SF

PER SQUARE FOOT

P-620 10,500 SF

PER SQUARE FOOT

P-620 1 LS

PER LUMP SUM

P-621 24,900 SY

PER SQUARE YARD

T-901 1 AC

PER ACRE

T-905 20 CY

PER CUBIC YARD

T-908 1 AC

PER ACRE

L-108 1,500 LF

PER LINEAR FOOT

L-109 2 UN

PER UNIT

L-110 1,500 LF

PER LINEAR FOOT

MARKING (PERMANENT WHITE)

MARKING (PERMANENT BLACK)

SEEDING

TOPSOIL (FURNISHED OFF THE SITE)

REFLECTIVE MEDIA

GROOVING

INSTALLATION OF EQUIPMENT WITHIN EXISTING VAULT OR PREFABRICATED

METAL HOUSING IN PLACE

NON-ENCASED ELECTRICAL CONDUIT, 1 WAY - 1" RGS CONDUIT

MULCHING

NO. 6 AWG SOLID BARE COPPER COUNTERPOISE WIRE, INSTALLED IN

TRENCH, INCLUDING CONNECTIONS/TERMINATIONS

Bid Schedule (Revised) - Bid Alternate Three (3) Rehabilitate Runway 6-24 | 24072 - ROA

ITEM ITEM WITH UNIT PRICE IN FIGURES TOTAL

NO. WRITTEN IN WORDS --------------------- ---------------------

DOLLARS DOLLARS

CENTS CENTS

BID ALTERNATE THREE (3)

APPROX.

QUANTITY

L-115 30 EA

PER EACH

L-115 2 EA

PER EACH

L-125 2 EA

PER EACH

L-125 2 EA

PER EACH

L-125 16 EA

PER EACH

M-103 2 EA

PER EACH

M-103 1 EA

PER EACH

M-107 3,000 LF

PER LINEAR FOOT

41.SP 2 EA

PER EACH

Total Bid Amount $

SP-1 Non-AIP Insurance Allowance $

ADJUST L-850C IN-PAVEMENT HIRL

ADJUST L-861T BASE-MOUNTED MITL

IN-PAVEMENT RUNWAY CENTERLINE CAN (L-868B) WITH COVER PLATE

EXISTING ELECTRICAL MANHOLE/JUNCTION STRUCTURE ELEVATION

ADJUSTMENT

CLOSED TAXIWAY MARKERS

AVIATION BARRICADES (CONTRACTOR FURNISHED)

ADJUST L-862(L) IN-PAVEMENT HIRL

LIGHTED PORTABLE CLOSED RUNWAY MARKERS (CONTRACTOR FURNISHED)

IN-PAVEMENT MANHOLE ADJUSTMENT

Bid Schedule (Revised) - Bid Alternate Three (3) Rehabilitate Runway 6-24 | 24072 - ROA