One Brattle Square

P.O. Box 9114

Cambridge, MA

02238-9114

Tel: 617 475 4000

Fax: 617 475 4445

www.tka-architects.com

Project:

Owner:

Construction Manager:

C O N S T R U C T I O N C H A N G E A U T H O R I Z AT I O N

T S O I K O B U S & A S S O C I A T E S

A R C H I T E C T S

Construction ChangeAuthorization No.:

Date of Issuance:

Project No.:

No Change in Cost or Time

The Work shall be carried out in accordance with the described supplemental instructions issued in accordance with the ContractDocuments without change in Contract Sum or Contract Time. Prior to proceeding in accordance with these instructions, indicateyour acceptance of these instructions for minor change to the Work as consistent with the Contract Documents and return a copyto the Architect within 10 working days.

Estimate of Change in Cost/Time, Proceed with Work

In order to expedite the Work and avoid or minimize delays in the Work which may affect Contract Sum or Contract Time, theContract Documents are hereby amended as described above. Proceed with this Work promptly. Submit final costs for Workinvolved and change in Contract Time (if any), for inclusion in a subsequent Change Order.

Estimate of Change in Cost/Time, Do Not Proceed with Work

Please submit a proposal showing itemized cost breakdown of labor and material for the proposed change, showing either creditor extra cost to the Contract time, prior to proceeding with this work. Do not proceed with this work unless authorized by theOwner in writing.

Description:

Attachments:

Issued Confirmed Authorized

By: By: By:Architect Contractor Owner

Date: Date: Date:

1 of 2

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Job Number

Drawn by

Checked

Date

Scale

Drawing No.

Drawing Title

Stamp

O n e B r a t t l e S q u a r e P . O . B o x 9 1 1 4C a m b r i d g e , M A 0 2 2 3 8 - 9 1 1 4

T e l : 6 1 7 4 7 5 4 0 0 0 F a x : 6 1 7 4 7 5 4 4 4 5w w w . t k a - a r c h i t e c t s . c o m

Revisions

No. Description Date

Siegel AssociatesStructural860 Walnut STNewton, MA 02459

617.244.1612000.000.0000

Coneco EngineersCivil4 First StreetBridgewater, MA 02324

508.697.3191508.697.5996

Sun EngineeringHVAC Design491 Maple ST, Suite 209Danvers, MA 01923

978.777.7765978.777.7768

Thompson Engineering CompanyElectrical Engineer10 City SquareBoston MA, 02129

617.227.6818617.886.9090

VAV International Inc.Plumbing and FireProtection 400 Cummings Park STE 4700

Woburn, MA 018017814.935.7228781.935.1822

JEN

C-3

GRADING & DRAINAGE

SMO

04/29/2016

Lincoln Instituteof Land Policy

CONSTRUCTION DOCUMENTS

35016

Thorp House, 115 Brattle Street,Cambridge, MA

AS NOTED

2 CONSTRUCTION MODIFICATION 09/21/16

Tel.Fax.

Tel.Fax.

Tel.Fax.

Tel.Fax.

Tel.Fax.

Job Number

Drawn by

Checked

Date

Scale

Drawing No.

Drawing Title

Stamp

O n e B r a t t l e S q u a r e P . O . B o x 9 1 1 4C a m b r i d g e , M A 0 2 2 3 8 - 9 1 1 4

T e l : 6 1 7 4 7 5 4 0 0 0 F a x : 6 1 7 4 7 5 4 4 4 5w w w . t k a - a r c h i t e c t s . c o m

Revisions

No. Description Date

Siegel AssociatesStructural860 Walnut STNewton, MA 02459

617.244.1612000.000.0000

Coneco EngineersCivil4 First StreetBridgewater, MA 02324

508.697.3191508.697.5996

Sun EngineeringHVAC Design491 Maple ST, Suite 209Danvers, MA 01923

978.777.7765978.777.7768

Thompson Engineering CompanyElectrical Engineer10 City SquareBoston MA, 02129

617.227.6818617.886.9090

VAV International Inc.Plumbing and FireProtection 400 Cummings Park STE 4700

Woburn, MA 018017814.935.7228781.935.1822

JEN

C-4

CONSTRUCTION DETAILS

SMO

04/29/2016

Lincoln Instituteof Land Policy

CONSTRUCTION DOCUMENTS

35016

Thorp House, 115 Brattle Street,Cambridge, MA

1"=20'

UTILITY CROSSING DETAIL6" WATER CONNECTION DETAIL

2" WATER CONNECTION DETAIL

GATE VALVE

CONCRETE THRUST BLOCK

UTILITY TRENCH

CULTEC RECHARGER 330 XL

FOUNDATION CORING DETAIL

DOWNSPOUT TO INFILTRATION TRENCH DETAIL

TYPICAL PAVEMENT SECTION

WATER METER DETAIL

95% COMPACTED FILL

FINISHED

GRADE

RECHARGER

330 XL HD

HEAVY DUTY

CHAMBER

HVLV FC-24 FEED CONNECTOR

WHERE SPECIFIED

4 OZ. NON-WOVEN FILTER FABRIC

AROUND STONE. TOP AND SIDES

MANDATORY.

CULTEC NO. 20L POLYETHYLENE LINER TO

BE PLACED BENEATH

HVLV FC-24 FEED CONNECTORS

WHEN UTILIZING

INTERNAL MANIFOLD

1-2 INCH DIA

WASHED

CRUSHED

STONE

1 - 2 INCH DIA. WASHED,

CRUSHED STONE

CULTEC RECHARGER

330XL HD HEAVY DUTY

CHAMBER

4 OZ. NON-WOVEN

FILTER FABRIC

AROUND STONE

95% COMPACTED FILL

CULTEC NO. 20L POLYETHYLENE

LINER TO SPAN THE ENTIRE WIDTH

OF THE SYSTEM BELOW THE HVLV FC-24

FEED CONNECTORS AND

SIDE PORTALS

SIDE PORTAL TO BE CUT IN

FIELD TO ALLOW HVLV FC-24

FEED CONNECTOR AS

NEEDED

INPSECTION PORT RISER (TYP) 8" - 10" SCH

40 PVC IN PAVEMENT PLACE CURB BOX

OVER PORT IN GRASS COVER WITH

SPRINKLER STYLE PVC ROAD BOX

NOTES:

1. PREVENTATIVE MEASURES WILL BE KEPT IN PLACE TO PREVENT SEDIMENT ENTERING

THE INFILTRATION SYSTEMS AND WILL BE REMOVED ONCE PAVEMENT AND VEGETATION IS

ESTABLISHED ON THE SITE IN THE AREAS THAT CONTRIBUTE TO THE SYSTEMS.

2. NO DEWATERING DURING CONSTRUCTION WILL BE ALLOWED TO BE DIRECTED INTO THE

INFILTRATION SYSTEM. A DEWATERING BASIN WILL BE UTILIZED.

3. CONSTRUCTION TRAFFIC SHALL BE HELD TO A MINIMUM IN THE AREAS OF THE

INFILTRATION SYSTEM TO PREVENT THE OVER COMPACTION OF THE SOILS.

DOWNSPOUT CONNECTION & OVERFLOW DETAIL

POROUS PAVEMENT

1 CONSTRUCTION MODIFICATION 07/22/16

AREA DRAIN

2 CONSTRUCTION MODIFICATION 09/21/16