AMENDMENT 2.pdf

AMENDMENT 2 - 127EAX23Q0061 Concrete Walkway Reconstruction

• Ques�ons and Answers

• Updated Schedule of Items

• Site Visit Sign-In Sheet

Solicitation No. 127EAX23Q0061 Concrete Walkway Reconstruction & Improvements Page 1 of 3 Organized Site Visit Questions and Answers

1. Can you provide more information about the “concrete drainage trough” shown next to the sidewalk on sheet 5 of 7 in the drawings?

• Length of the concrete drainage trough is 60 linear feet.

• Minimum depth is 18”. Increase if necessary to match existing grade and provide minimum of 1% slope towards culvert near SE corner of Bldg 01- 032A&B.

• Cross Section is shown on new Details Drawing.

• Provide and install 14” wide by 2” deep trench grates to cover the concrete trough so it will not be a hazard to pedestrians. Grating shall meet the Medium Duty loading classification in a static condition per ANSI A112.21.1M, or DIN Load Class B

• A new pay has been added to the Schedule of Items for this: Pay Item 0005- Install concrete trench with grate.

2. Can you provide more information about the new concrete sidewalk?

• Sidewalk shall be 4 feet wide

• Construct according to details shown on new Details Drawing

3. Can you provide more information about the snow bars? Where are they to be installed on the roofs?

• The number and placement of snow bars shall be in areas recommended by snow bar manufacturer, or industry standard for the type of roof and area snow loads.

• Color of snow bars shall be matched as close as possible to roof colors.

• Snow Bar anchors shall be fastened into the valley of the corrugation of flat of the panel using products with butyl polymetric sealant in the bracket’s base for weathertightness and fasteners with EPDM gaskets (washers) to prevent moisture intrusion and corrosion.

• At the same time as snow bars are installed, tighten all of the screws (exposed fasteners) on each roof. Any screws that cannot be tightened because of wear or enlarged holes shall be replaced with the next larger diameter gasketed screw.

4. Clarification on the gutters:

• 6” K Style Gutters shall have baked enamel finish to match either the roof or the trim of each building.

• Gutters, gutter covers, downspouts, end caps and all accessories shall be installed per industry standards.

• Gutter hangers shall be quick screw type brackets that hold tighter than conventional hidden brackets.

• Building 01-032C at Site 1: Gutter install may require the roof to be trimmed back by 2 in.

• Building 01-032A&B at Site 1: Gutter install may require 1x4 spacer to be installed.

• Buildings at Site 3: Omit the downspouts. See photos that follow.

Solicitation No. 127EAX23Q0061 Concrete Walkway Reconstruction & Improvements Page 2 of 3

Solicitation No. 127EAX23Q0061 Concrete Walkway Reconstruction & Improvements Page 3 of 3

DRAWING TITLE

DRAWN

DESIGNER

CHECKED

ARCHIVE NO.

DATE

PROJECT NO.

DWG SHEET NO.

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United States Department of Agriculture Forest Service

R3

SOUTHWESTERN REGION

CONCRETE

WALKWAY

RECONSTRUCTION

APACHE-SITGREAVES

NATIONAL FORESTS

ALPINE RANGER

DISTRICT

SIDEWALK AND

TRENCH DRAIN

DETAILS

01/23/2020

P.JARAMILLO

P.JARAMILLO

C-03

DETAIL 1A CROSS SECTION

4" CONCRETE AND TURNDOWN

NO SCALE

4"

8" 4"

#3 REBAR; 18"

O.C. EACH WAY#3 REBAR

4" TOOLED

RADIUS EDGE

(TYPICAL)

COMPACTED BACKFILL

SLOPED 3H:1V AWAY

FROM CONCRETE

PREPARED SUBGRADE

SUBBASE

4" 6"

SAWCUT AND REMOVE

SECTION AS MARKED

24" #4 DEFORMED STEEL

TIE BAR; DRILL AND EPOXY

GROUT INTO EXISTING

SLABS 18" ON CENTER

6" MIN.

3"

COLD JOINT

WITH BOND BREAKER

EXISTING

CONCRETE

SECTION

SECTION TO BE REMOVED

DETAIL 3A CROSS SECTION

CONCRETE REPAIR

NO SCALE

DETAIL 4A CROSS SECTION

CONCRETE TRENCH

NO SCALE

4"

SLOPE 2%

SUBBASE

EXISTING

CMU WALL

24" #4 DEFORMED STEEL

TIE BAR; DRILLED AND EPOXY

GROUTED 6" MINIMUM INTO EXISTING

FLOOR SLAB; 18" SPACING ON CENTER 4" CONCRETE SIDEWALK,

REINFORCEMENT &

TURNDOWN PER DETAILS

1A, 2A, AND 3A.

NEW SIDEWALK

NO SCALE

CROSS SECTIONDETAIL 5A

BACKER ROD

SILICONE SEALANT

DETAIL 2A CROSS SECTION

4" CONCRETE CONTROL JOINT

NO SCALE

TOOLED CONTROL JOINT

WITH 1/4" RADIUS EDGE

FOR 4" CONCRETE, INSTALL CONTROL JOINTS EVERY 5' O.C. EACH WAY.

JOINT DEPTH (IN.) = CONCRETE DEPTH (IN.) / 3

07/07/23

LOCATION OF CONCRETE

TRENCH

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PART I—THE SCHEDULE

SECTION B--SUPPLIES OR SERVICES AND PRICES/COSTS

B.1 SCHEDULE OF ITEMS

Item Supplies/Services Qty Unit of Issue

Unit Price Total Price

0001 Mobilization 1 LS $ $ 0002 Remove and Replace Concrete

Sidewalk

672 SF $ $

0003 Install Gutters & Downspouts 450 LF $ $ 0004 Install Snow Bars 450 LF $ $ 0005 Install Concrete Trench with Grate 60 LF $ $

Total Quote: $ Prices to include all Taxes and Fees.