Amendment 002 - PRA-ROCR 3A6.pdf

(x)

DTFH7110B00015

x x

0 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT

THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

x

Sterling VA 20166-6511

EFLHD-CO

21400 Ridgetop Circle Construction Office Eastern Federal Lands Highway Div.

Federal Highway Administration

Sterling VA 20166-6511

EFLHD-AC

21400 Ridgetop Circle Acquisitions Office Eastern Federal Lands Highway Div.

Federal Highway Administration

PRA-ROCR 3A607/13/2010002

13. THIS ITEM ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS. IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

12. ACCOUNTING AND APPROPRIATION DATA (If required) is not extended.is extended, Items 8 and 15, and returning

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods: (a) By completing

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

FACILITY CODE CODE

10B. DATED (SEE ITEM 13)

10A. MODIFICATION OF CONTRACT/ORDER NO.

9B. DATED (SEE ITEM 11)

9A. AMENDMENT OF SOLICITATION NO.

CODE

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP Code)

7. ADMINISTERED BY (If other than Item 6)CODE 6. ISSUED BY

PAGE OF PAGES

4. REQUISITION/PURCHASE REQ. NO.3. EFFECTIVE DATE2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO. (If applicable)

1. CONTRACT ID CODE

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

06/10/2010

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority) appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

E. IMPORTANT: Contractor is not, is required to sign this document and return __________________ copies to the issuing office.

ORDER NO. IN ITEM 10A.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

The purpose of this Amendment is to:

1) Replace the Solicitation B Pages to add, delete, and correct bid items.

2) Revise the Special Contract Requirements (J Pages) as follows:

a) Section 104 to revise the hauling limit requirements.

3) Revise the Plans to modify information related to quantities and the retaining wall.

4) Provide a summary of responses to question/clarifications asked by potential bidders.

5) Bid Opening Date remains July 15, 2010 at 2:00 pm EST.

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)15A. NAME AND TITLE OF SIGNER (Type or print)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA 15B. CONTRACTOR/OFFEROR 16C. DATE SIGNED

(Signature of person authorized to sign) (Signature of Contracting Officer)

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA

FAR (48 CFR) 53.243

NSN 7540-01-152-8070

Previous edition unusable

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

Amendment No. 002 Amendment Info Page 1 of 1

U.S. DEPARTMENT OF TRANSPORTATION

FEDERAL HIGHWAY ADMINISTRATION

EASTERN FEDERAL LANDS HIGHWAY DIVISION

Amendment No. 002 Project PRA-ROCR 3A6

Rock Creek Park Solicitation: DTFH71-10-B-00015

The purpose of this Amendment is to:

1) Replace the Solicitation B Pages to add, delete, and correct bid items.

2) Revise the Special Contract Requirements (J Pages) as follows:

a) Section 104 to revise the hauling limit requirements.

3) Revise the Plans to modify information related to quantities and the retaining wall.

4) Provide a summary of responses to question/clarifications asked by potential bidders.

Solicitation Provision changes

1. Delete Solicitation Bid Schedule pages B-1 through B-12 and substitute the amended Bid

Schedule pages B-1 through B-12.

Special Contract Requirement changes

1. Delete the first two paragraphs of Subsection 104.05 of the Special Contract Requirements, page J-6, and substitute the following:

When hauling on NPS roads, do not exceed the local jurisdiction load limits.

Plan Sheet changes

1. Delete Plan Sheets B.11 and R2, and substitute amended Plan Sheets B.11 and R2.

Project: PRA-ROCR 3A6

ROCK CREEK AND POTOMAC PARKWAY

B- 1 Amendment No. 002

Bid Schedule

Pay Item No.

Estimated Quantity Unit Bid Price Amount Bid

15101-0000 MOBILIZATION

ALL Lump Sum $___________________

15201-0000 CONSTRUCTION SURVEY AND STAKING

ALL Lump Sum $___________________

15401-0000 CONTRACTOR TESTING

ALL Lump Sum $___________________

15702-1000 SOIL EROSION CONTROL, TEMPORARY DIVERSION CHANNEL

ALL Lump Sum $___________________

15705-0100 SOIL EROSION CONTROL, SILT FENCE WIRE BACKED SUPER SILT

FENCE

4,235

LNFT $_______________ $___________________

15705-1800 SOIL EROSION CONTROL, TEMPORARY DIVERSION BERM

LNFT $_______________ $___________________

15706-1000 SOIL EROSION CONTROL, INLET PROTECTION

EACH $_______________ $___________________

15706-1600 SOIL EROSION CONTROL, STABILIZED CONSTRUCTION ENTRANCE

EACH $_______________ $___________________

15706-2200 SOIL EROSION CONTROL, FILTER BAG

EACH $_______________ $___________________

20102-0000 CLEARING AND GRUBBING

ALL Lump Sum $___________________

20301-1200 REMOVAL OF HEADWALL

EACH $_______________ $___________________

Project: PRA-ROCR 3A6

Bid Schedule A

Pay Item No.

Estimated Quantity Unit Bid Price Amount Bid

B- 2 Amendment No. 002

20301-1300 REMOVAL OF INLET GRATE

EACH $_______________ $___________________

20301-1400 REMOVAL OF INLET

EACH $_______________ $___________________

20302-0300 REMOVAL OF CURB AND GUTTER, CONCRETE

9,300

LNFT $_______________ $___________________

20302-1400 REMOVAL OF GUARDRAIL, TIMBER

1,700

LNFT $_______________ $___________________

20302-2100 REMOVAL OF PIPE CULVERT

LNFT $_______________ $___________________

20303-1600 REMOVAL OF PAVEMENT, ASPHALT

8,300

SQYD $_______________ $___________________

20303-3000 REMOVAL OF SIDEWALK, ASPHALT

SQYD $_______________ $___________________

20303-3100 REMOVAL OF SIDEWALK, BRICK

SQYD $_______________ $___________________

20315-0000 SAWCUTTING PAVEMENT

1,100

LNFT $_______________ $___________________

20401-0000 ROADWAY EXCAVATION

1,500

CUYD $_______________ $___________________

20402-0000 SUBEXCAVATION

CUYD $_______________ $___________________

20410-0000 SELECT BORROW

CUYD $_______________ $___________________

Project: PRA-ROCR 3A6

Estimated Quantity Unit Bid Price Amount Bid

B- 3 Amendment No. 002

20701-0800 EARTHWORK GEOTEXTILE, TYPE II-B

4,250

SQYD $_______________ $___________________

20701-1300 EARTHWORK GEOTEXTILE, TYPE IV-B

SQYD $_______________ $___________________

20701-1400 EARTHWORK GEOTEXTILE, TYPE IV-C

1,500

SQYD $_______________ $___________________

20801-0000 STRUCTURE EXCAVATION

2,000

CUYD $_______________ $___________________

20803-0000 STRUCTURAL BACKFILL

1,140

CUYD $_______________ $___________________

20810-0000 SHORING AND BRACING

ALL Lump Sum $___________________

25102-4000 PLACED RIPRAP, CLASS 4

2,500

TON $_______________ $___________________

30102-0100 AGGREGATE BASE GRADING C, 4-INCH DEPTH

SQYD $_______________ $___________________

30102-0200 AGGREGATE BASE GRADING C, 6-INCH DEPTH

4,400

SQYD $_______________ $___________________

30502-1000 AGGREGATE-TOPSOIL COURSE, 6-INCH DEPTH

1,100

SQYD $_______________ $___________________

40101-0200 SUPERPAVE PAVEMENT, 3/8-INCH NOMINAL MAXIMUM SIZE

AGGREGATE, 0.3 TO <3 MILLION ESAL (TYPE V PAVEMENT

ROUGHNESS)

6,100

TON $_______________ $___________________

40101-0200 SUPERPAVE PAVEMENT, 3/8-INCH NOMINAL MAXIMUM SIZE

AGGREGATE, 0.3 TO <3 MILLION ESAL (TYPE VII PAVEMENT

SMOOTHNESS/ROUGHNESS)

TON $_______________ $___________________

Project: PRA-ROCR 3A6

Estimated Quantity Unit Bid Price Amount Bid

B- 4 Amendment No. 002

40101-1000 SUPERPAVE PAVEMENT, 3/4-INCH NOMINAL MAXIMUM SIZE

AGGREGATE, 0.3 TO <3 MILLION ESAL

3,440

TON $_______________ $___________________

40102-0200 SUPERPAVE PAVEMENT, 3/8-INCH NOMINAL MAXIMUM SIZE

AGGREGATE, 0.3 TO <3 MILLION ESAL, WEDGE AND LEVELING COURSE

TON $_______________ $___________________

40401-0000 MINOR HOT ASPHALT CONCRETE

TON $_______________ $___________________

41301-0600 ASPHALT PAVEMENT MILLING, 2-INCH DEPTH

SQYD $_______________ $___________________

41301-0800 ASPHALT PAVEMENT MILLING, 3-INCH DEPTH

31,300

SQYD $_______________ $___________________

41501-0000 PAVING GEOTEXTILE - TYPE VI - JOINT FABRIC

12,000

SQYD $_______________ $___________________

55201-0200 STRUCTURAL CONCRETE, CLASS A (AE) FOR RETAINING WALL

CUYD $_______________ $___________________

55201-0800 STRUCTURAL CONCRETE, CLASS D (AE) FOR REPAIRS

CUYD $_______________ $___________________

55401-1000 REINFORCING STEEL

76,820

LB $_______________ $___________________

56501-0300 DRILLED SHAFTS, 30-INCH DIAMETER

LNFT $_______________ $___________________

56501-0400 DRILLED SHAFTS, 36-INCH DIAMETER

2,240

LNFT $_______________ $___________________

60103-4000 CONCRETE, FOUNDATION, LIGHT POLE

EACH $_______________ $___________________

Project: PRA-ROCR 3A6

Estimated Quantity Unit Bid Price Amount Bid

B- 5 Amendment No. 002

60201-0400 12-INCH PIPE CULVERT

LNFT $_______________ $___________________

60201-0500 15-INCH PIPE CULVERT

1,280

LNFT $_______________ $___________________

60201-0600 18-INCH PIPE CULVERT

1,700

LNFT $_______________ $___________________

60201-0800 24-INCH PIPE CULVERT

LNFT $_______________ $___________________

60210-0500 END SECTION FOR 15-INCH PIPE CULVERT

EACH $_______________ $___________________

60210-0600 END SECTION FOR 18-INCH PIPE CULVERT

EACH $_______________ $___________________

60210-0800 END SECTION FOR 24-INCH PIPE CULVERT

EACH $_______________ $___________________

60401-0000 MANHOLE

EACH $_______________ $___________________

60403-0100 INLET, TYPE 1

EACH $_______________ $___________________

60403-1800 INLET, TYPE 6A MODIFIED - DOUBLE TYPE 6A-6

EACH $_______________ $___________________

60406-0000 INLET ADJUSTMENT

EACH $_______________ $___________________

60407-0000 CAPPING INLETS AND MANHOLES

EACH $_______________ $___________________

Project: PRA-ROCR 3A6

Estimated Quantity Unit Bid Price Amount Bid

B- 6 Amendment No. 002

60409-0700 INLET TOP, METAL FRAME AND GRATE TYPE 6A

EACH $_______________ $___________________

60501-0000 STANDARD UNDERDRAIN SYSTEM

LNFT $_______________ $___________________

60520-0000 GRANULAR BACKFILL

CUYD $_______________ $___________________

60703-0000 CLEANING CULVERTS IN PLACE

LNFT $_______________ $___________________

60707-0100 LINING 12-INCH PIPE CULVERT

LNFT $_______________ $___________________

60707-0200 LINING 15-INCH PIPE CULVERT

LNFT $_______________ $___________________

60707-0300 LINING 18-INCH PIPE CULVERT

LNFT $_______________ $___________________

60707-0500 LINING 24-INCH PIPE CULVERT

LNFT $_______________ $___________________

60902-0800 CURB AND GUTTER, CONCRETE, 10-INCH DEPTH

9,300

LNFT $_______________ $___________________

60902-1100 CURB AND GUTTER, CONCRETE, 13-INCH DEPTH

LNFT $_______________ $___________________

61501-0100 SIDEWALK, CONCRETE

SQYD $_______________ $___________________

61504-1000 ACCESSIBILITY RAMP, CONCRETE

SQYD $_______________ $___________________

Project: PRA-ROCR 3A6

Estimated Quantity Unit Bid Price Amount Bid

B- 7 Amendment No. 002

61509-0000 DETECTABLE WARNING PANELS

SQYD $_______________ $___________________

61701-3900 GUARDRAIL SYSTEM SBTA

1,960

LNFT $_______________ $___________________

61701-3900 GUARDRAIL SYSTEM SBTA (MEDIAN GUARDRAIL SYSTEM)

1,110

LNFT $_______________ $___________________

61702-0000 TERMINAL SECTION SBTA TL-2 CONNECTION TO STONE MASONRY

GUARDWALL

EACH $_______________ $___________________

61702-0000 TERMINAL SECTION SBTA TL-2 TRANSITION TO STRAIGHT OR CURVED

END STRUCTURE

EACH $_______________ $___________________

61702-0510 TERMINAL SECTION, TYPE SBT-FAT

EACH $_______________ $___________________

61711-5000 IMPACT ATTENUATOR, QUADGUARD

EACH $_______________ $___________________

62001-0800 CLASS B MASONRY, COURSE POINTED FINISH

CUYD $_______________ $___________________

62011-0100 STONE MASONRY HEADWALL FOR 12-INCH PIPE CULVERT

EACH $_______________ $___________________

62011-0200 STONE MASONRY HEADWALL FOR 15-INCH PIPE CULVERT

EACH $_______________ $___________________

62011-0300 STONE MASONRY HEADWALL FOR 18-INCH PIPE CULVERT

EACH $_______________ $___________________

62011-0500 STONE MASONRY HEADWALL FOR 24-INCH PIPE CULVERT

EACH $_______________ $___________________

Project: PRA-ROCR 3A6

Estimated Quantity Unit Bid Price Amount Bid

B- 8 Amendment No. 002

62025-1000 REMOVE AND RESET STONE MASONRY

CUYD $_______________ $___________________

62030-0000 REPOINT STONE MASONRY

2,330

LNFT $_______________ $___________________

62035-0000 CLEAN STONE MASONRY SURFACES

SQYD $_______________ $___________________

62401-0300 FURNISHING AND PLACING TOPSOIL, 4-INCH DEPTH

2,900

SQYD $_______________ $___________________

62401-0400 FURNISHING AND PLACING TOPSOIL, 6-INCH DEPTH

SQYD $_______________ $___________________

62501-0000 TURF ESTABLISHMENT

2.0

ACRE $_______________ $___________________

63304-0900 SIGNS, ALUMINUM PANELS, TYPE 3 SHEETING

SQFT $_______________ $___________________

63305-1700 POSTS, WOOD, 4-INCH X 4-INCH

1,300

LNFT $_______________ $___________________

63308-0000 OBJECT MARKER FOR TREE SAVE/PROTECTION

EACH $_______________ $___________________

63313-0000 RUMBLE STRIP

2,800

LNFT $_______________ $___________________

63401-0700 PAVEMENT MARKINGS, TYPE D, SOLID

57,300

LNFT $_______________ $___________________

63401-0800 PAVEMENT MARKINGS, TYPE D, BROKEN

18,300

LNFT $_______________ $___________________

Project: PRA-ROCR 3A6

Estimated Quantity Unit Bid Price Amount Bid

B- 9 Amendment No. 002

63405-1300 PAVEMENT MARKINGS, TYPE D, TURN ARROW

EACH $_______________ $___________________

63406-0400 RAISED PAVEMENT MARKER TYPE D

EACH $_______________ $___________________

63406-0500 RAISED PAVEMENT MARKER TYPE E

EACH $_______________ $___________________

63502-0200 TEMPORARY TRAFFIC CONTROL, ADVANCE WARNING ARROW PANEL,

TYPE B

EACH $_______________ $___________________

63502-0500 TEMPORARY TRAFFIC CONTROL, BARRICADE TYPE 2

EACH $_______________ $___________________

63502-0600 TEMPORARY TRAFFIC CONTROL, BARRICADE TYPE 3

EACH $_______________ $___________________

63502-1300 TEMPORARY TRAFFIC CONTROL, DRUM

EACH $_______________ $___________________

63502-2000 TEMPORARY TRAFFIC CONTROL, PORTABLE CHANGEABLE MESSAGE

SIGN

EACH $_______________ $___________________

63502-2200 TEMPORARY TRAFFIC CONTROL, CRASH CUSHION, INERTIAL BARREL

SYSTEM

EACH $_______________ $___________________

63502-2600 TEMPORARY TRAFFIC CONTROL, MOVING TEMPORARY CRASH

CUSHION

EACH $_______________ $___________________

63502-2800 TEMPORARY TRAFFIC CONTROL, REPLACEMENT BARRELS FOR CRASH

CUSHION

EACH $_______________ $___________________

Project: PRA-ROCR 3A6

Estimated Quantity Unit Bid Price Amount Bid

B- 10 Amendment No. 002

63503-0400 TEMPORARY TRAFFIC CONTROL, CONCRETE BARRIER

1,550

LNFT $_______________ $___________________

63503-0500 TEMPORARY TRAFFIC CONTROL, MOVING CONCRETE BARRIER

3,200

LNFT $_______________ $___________________

63503-0700 TEMPORARY TRAFFIC CONTROL, PAVEMENT MARKINGS

115,800

LNFT $_______________ $___________________

63503-0800 TEMPORARY TRAFFIC CONTROL, PAVEMENT MARKING REMOVAL

10,300

LNFT $_______________ $___________________

63503-1000 TEMPORARY TRAFFIC CONTROL, PLASTIC FENCE

1,000

LNFT $_______________ $___________________

63503-1000 TEMPORARY TRAFFIC CONTROL, PLASTIC FENCE FOR LOD STAKE-OUT

12,191

LNFT $_______________ $___________________

63504-1000 TEMPORARY TRAFFIC CONTROL, CONSTRUCTION SIGN

SQFT $_______________ $___________________

63506-0500 TEMPORARY TRAFFIC CONTROL, FLAGGER

HOUR $___43.30_________ $__10,392.00_______

63610-0000 CONDUIT 3/4 INCH FLEXIBLE LIQUID TIGH

LNFT $_______________ $___________________

63610-2200 CONDUIT, 3-INCH, PVC

1,900

LNFT $_______________ $___________________

63610-2300 CONDUIT, 3-INCH, RIGID GALVANIZED STEEL (BORED)

LNFT $_______________ $___________________

63610-2900 CONDUIT, 4-INCH, RIGID GALVANIZED STEEL (BORED)

LNFT $_______________ $___________________

Project: PRA-ROCR 3A6

Estimated Quantity Unit Bid Price Amount Bid

B- 11 Amendment No. 002

63611-0100 WIRE, ELECTRICAL CONDUCTORS, 14 AWG LOOP WIRE ENCASED IN

FLEXIBLE TUBING

LNFT $_______________ $___________________

63611-0100 WIRE, ELECTRICAL CONDUCTORS, 14 AWG - SAWCUT FOR SIGNAL

(LOOP DETECTOR)

LNFT $_______________ $___________________

63611-0300 WIRE, ELECTRICAL CONDUCTORS, 10 AWG

11,000

LNFT $_______________ $___________________

63611-0300 WIRE, ELECTRICAL CONDUCTORS, 10 AWG FURNISH AND INSTALL

STRANDED BARE COPPER GROUND WIRE

5,500

LNFT $_______________ $___________________

63612-0100 LUMINAIRE, TYPE A (400 WATT METAL HALIDE)

EACH $_______________ $___________________

63620-0000 POLE - FURNISH AND INSTALL GROUND ROD - 3/4 INCH DIAMETER x 10

FOOT LENGTH

EACH $_______________ $___________________

63620-0100 POLE, TYPE A (30 FOOT PENDANT POST, WITH BREAKAWAY

TRANSFORMER BASE)

EACH $_______________ $___________________

63620-0200 POLE, TYPE B (30 FOOT PENDANT POST, ANCHOR BASE)

EACH $_______________ $___________________

63621-1000 UTILITY BOX, PULLBOX

EACH $_______________ $___________________

63621-3000 UTILITY BOX, JUNCTION BOX

EACH $_______________ $___________________

63641-0100 RELOCATE LUMINAIRE - REMOVE AND DISPOSE OF LIGHTING

STRUCTURE

EACH $_______________ $___________________

Project: PRA-ROCR 3A6

Estimated Quantity Unit Bid Price Amount Bid

B- 12 Amendment No. 002

63701-0000 FIELD OFFICE

EACH $_______________ $___________________

$_____________________TOTAL

Submitted by:

Name of Bidder

Project: PRA-ROCR 3A6

Amendment 002 Questions/Clarifications Page 1of 2

Questions/Clarifications

The following questions and issues were submitted via email at eflhd.contracts@dot.gov. The Government response or clarification is provided. Due to the repetitive nature of several questions and issues, the wording of the questions may have been revised and some questions have not been included. The Government’s direct response to the sender may also have been updated below for the better clarity.

1. Is pay item 15702-1000 (Soil Erosion Control – Temporary Diversion Channel) referring to plan sheet M.16 (Stream Diversion Plan)? Should we use the detail shown for “Sandbag Dam” on that plan sheet for Diversion Channel?

Response: Yes.

2. Pay item 55201-0800 “Structural Concrete, Class D (AE) for Repair”: which plan sheet shows the details and the nature of repairs? Please provide some details.

Response: This work is to be done as directed by the CO as needed at the existing retaining walls, concrete headwalls, and bridge decks.

3. Pay item 55401-1000 “reinforcing steel”: does this item include both the retaining wall and the drill shafts rebars?

Response: Reinforcing steel for drilled shafts is included in Pay Items 56501-0300 and 56501-0400.

4. Pay item 55221-0000 “Expansion Joint Repair”: which plans sheet shows the extent and location of these repairs? This item is Lump Sum and more detail is required pertaining to the volume of work involved.

Response: The expansion joint repair (Pay Item 55221-0000) does not apply to this project and will be deleted by amendment.

5. Would you please provide more information regarding the retaining wall veneer stone and the coping? Pay item 62001-0800, “Class B Masonry, Course Pointed Finish”: which plan sheet shows the detail of the structure where this type of masonry material will be used for?

Response: The veneer and the coping details are located on Plan Sheets R1 and R2.

The veneer is to be paid under Class B Masonry, Course Pointed Finish (Pay Item 62001-0800); see Section 620 for additional work requirements. See Plan Sheets R1 and R2.

6. Would you please clarify that the weight limits stated on section 104.05 of the IFB book apply to Rock Creek and Potomac Parkway within the project limits and the parkway section leading to the project site?

Amendment 002 Questions/Clarifications Page 2of 2

Response: The hauling limits will be deleted by an amendment.

7. The Contractor Sampling and Testing section is not very clear as to the extent of tests required throughout the project. Would you please clarify what materials you specifically require testing for and what is the frequency of required tests?

Response: Refer to Subsections 154.02 and 154.03 for Contractor Sampling and Testing. The sampling and testing requirements for each pay item is provided at the end of the Section that describes the work. For example, Pay Item 20410-0000 Select Borrow: for the work described in Section 204, the sampling and testing requirements are provided at the end of the Section in Table 204-1.

8. I have a request for Information, regarding Rip Rap. There are two different line items for Rip Rap and I am wondering what the difference and where are each used for I could not find them on the drawings.

Item 25101-4000 Placed Rip Rap Class 4 1,190 Cu Yd Item 25102-4000 Placed Rip Rap Class 4 2,500 Tons

Response: Placed Rip Rap Class 4 (Pay Item 25101-4000) by the CUYD is included on the plans by mistake and will be deleted by an amendment.

9. The specification for Bid Item 63612-0100 Luminaire, Type A (400w Metal Halide) is in conflict with the written specification, Sect. 721 (f) (1) which indicates 250w High Pressure Sodium. Also, the “Furnish aluminum detachable reflectors with ethylene terpolymer gaskets” is not clear.

Response: The pay item and description is correct as indicated [63612-0100 LUMINAIRE, TYPE A (400 WATT METAL HALIDE)]. The FP Subsection 721.02(f) is superseded by the SCR’s (pages J-65 and 66) which direct you to the DDOT specs, so the 250watt HPS luminaries and reflector/gasket specs would not apply.

10. Please refer to Sheet No. R2. Please confirm that the thickness for Pay Item 62001-0800 will be 6". There is a mention on this page of 4" as well. It is not possible to install this type of stone in a 4" thickness.

Response: See Plan Sheet R2 which includes a 4-inch minimum thickness and a 6-inch maximum thickness. If the stone veneer cannot be installed in a 4-inch thickness, it should be installed with a 6-inch thickness.

Any questions received after this time will be answered on an individual response basis, unless another amendment is required.