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Home My WebLink Aboutresolution.council.053-19 RESOLUTION #53 (Series of 2019) A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF ASPEN, COLORADO, AUTHORIZING A CHANGE ORDER FOR PROJECT 51112 — 425 RIO GRANDE PLACE UTILITY WORK, CREATING A NEW PROJECT NUMBER AND ASSIGNING THE CHANGE ORDER TO THE NEW PROJECT NUMBER AND THE CITY MANAGER TO EXECUTE THE CHANGE ORDER. WHEREAS, there has been submitted to the City Council Contract Change Order between the City of Aspen and Shaw Construction GMP for Project 51112 — 425 Rio Grande Place utility work a true and accurate copy of which is attached hereto as Exhibit "A"; WHEREAS, City Council wishes to establish a new project with project number 51120, for Rio Grande Place Road Base improvements and assign the change order to that new project number. NOW, THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF ASPEN, COLORADO, That the City Council of the City of Aspen hereby approves that Contract Change Order between the City of Aspen and Shaw Construction GMP for Project 51112 —425 Rio Grande Place utility work a copy of which is annexed hereto and incorporated herein. In addition, the City Council establishes a new project with project number 51120, for Rio Grande Place Road Base improvements and assigns the change order to that new project number and does hereby authorize the City Manager to execute said change order on behalf of the City of Aspen. INTRODUCED, READ AND ADOPTED by the City Council of the City of Aspen on the 24th day of April 2019. i St en S adron, Mayor I, Linda Manning, duly appointed and acting City Clerk do certify that the foregoing is a true and accurate copy of that resolution adopted by the City Council of the City of Aspen, Colorado, at a meeting held April 24, 2019. Linda Manning, City Clerk SHAWPending Change Order rRINTIOUNIFIRRUM No. 010 City of Aspen Civic Space Relocation-City Offices Project No: 10081-02 425 Rio Grande Place Aspen, CO 81611 r Y Grand Total PCO#010: $379,298.53 Total Time Extension: NONE Submitted By: Shaw Construction LLC GJ Authorized By:Aspen,City of I authorize Shaw - n to proceed with the work noted above and agree to pay for the work. WSignature � � Date 4.30.19 Sionatu� re�� Date Name Brian Thomas, Project Manager Name Sara Ott, City Manager SHAWPending Change Order No. 010 City of Aspen Civic Space Relocation-City Offices Project No: 10081-02 425 Rio Grande Place Aspen, CO 81611 PCO No.010 Contaminated Soils in Rio Grande Place Date Sent:4/24/2019 Transmitted To: From: Sara Ott, City Manager Brian Thomas, Project Manager Aspen, City of Shaw Construction LLC GJ 130 Galena Street Tel: 970-248-2619 Aspen, CO 81611 Fax Email. brianthomas@shawconstruction.net Description of Proposal: 2 feet over excavation of Rio Grand Place to remove contaminated soils with import backfill per CTO specs Cost Summary for Item : 1 Contaminated Soils in Rio Grande Place V(-:R 'r� �('MD Phase Description Quantity Unit Price Amount 002300-010 Contaminated Soils in Rio Grande PIz 1 A, 324,604.80 324,604.80 2 feet over excavation of Rio Grand Place to remove contaminated soils with import backfill per CTO specs Net Total for Item 1: $324,604.8-0- Description 324,604.80Description Percentage Amount Liability Insurance 0.93% 3,018.82 Total Item#1' $351,058.53 Warranty Reserve 0.60% 1,947.63 P&P Bond 0.66% 2,142.39 Time Extensi NONE Builders Risk 0.37% 1,201.04 Profit 5.45% 18,143.85 ( �/ g Subtotal: $26,453.73 Cost Summary for Item:2 Add Alternate Provide&Install Geogrid under road Phase Description Quantity Unit Price Amount 002300-0110 Contaminated Soils in Rio Grande PI. 1 LS 26,112.00 26,112.00 Add Alternate.Provide&Install Geogrid under road Net Total for Item 2: $26,112.00 Description Percentage Amount Liability Insurance 0.93% 242.84 Total Item#2: $28,240.00 Warranty Reserve 0.60% 156.67 P&P Bond 0.66% 172.34 Time Extension: NONE Builders Risk 0.37% 96.61 Profit 5.45% 1,459.54 Subtotal: $2,128.00 Pa¢c 1 of 2 CTL I THOMPSON April 24, 2019 City of Aspen 130 S. Galena Street Aspen, CO 81611 Attention: Hailey Guglielmo, EIT Civil Engineer Subject: Existing Fill Recommendations Rio Grande Place Improvements Aspen, Colorado Project No. GS06327.000-145 CTL I Thompson, Inc. (CTL) is providing construction observation and materi- als testing services for the Rio Grande Place Improvements project pursuant to our master agreement to provide professional services for the City of Aspen. On April 23, 2019, James Kellogg, P.E., Glenwood Springs Division Manager for CTL, at- tended a meeting at the site. Representatives from the City of Aspen, Phil Vaughan Construction Management, Concept One Group, Roaring Fork Engineering, Shaw Construction, Stutzman-Gerbaz, and Western Pipeway were also present. The pur- pose of the meeting was to discuss existing fill that is present below parts of Rio Grande Place. At this writing, the composition, thickness, and extent of existing fill below Rio Grande Place is unknown. Our observations indicate the existing pavement has per- formed reasonably well. However, supporting new pavements and structures, such as curb and gutter, on existing fill would involve increased risk of differential move- ment and associated damage as compared to support on undisturbed natural gravel and cobble soil and/or densely-compacted, granular structural fill. The risk of poor performance would be further increased since parts of the street will be supported on backfill in trenches for new utility construction. Supporting pavements and structures on variable subgrade soils and/or soils with poor support characteristics is not rec- ommended. Performance of the new pavements and structures cannot be reasona- bly predicated for such variable and unknown conditions. CTL recommends removal of existing fill below Rio Grande Place to a depth of 2 feet, or until undisturbed natural gravel and cobble soils are encountered. Our representative should be called to observe subgrade soils exposed, as well as the subexcavation process to remove unsuitable soils. In some areas, it may be neces- sary to place a geofabric or geogrid on the subsurface of subexcavated areas, prior to placing structural fill to re-attain pavement subgrade elevation. This will need to be evaluated by our representative during construction. In general, the subexcavation process can be limited to areas below the street and curb and gutter. Existing fill below sidewalks that will be subject only to 234 Center Drive I Glenwood Springs, Colorado 81601 Telephone: 970-945-2809 Fax: 970-945-7411 pedestrian traffic could require limited removal and replacement of existing fill. This will need to be evaluated in the field during construction. Utility trenches for the project are currently being backfilled with imported ag- gregate base course that appears similar to a CDOT Class 6. We recommend that the same aggregate base course be used to replace subexcavated areas of existing fill. The aggregate base course should be placed in loose lifts of about 8-inches thick, moisture-treated to within 2 percent of optimum content, and compacted to at least 95 percent of standard Proctor (ASTM D698) maximum dry density. Our repre- sentative should be called to observe placement and test moisture and density of fill. We are available to discuss the contents of this letter. If you have any ques- tions, please call. Very CTL,I TH'." PSON; INC. J mes D. Kellogg, P.E. Division Manger JDK:ac CITY OF ASPEN 2 RIO GRANDE PLACE IMPROVEMENTS PROJECT NO.GS06327.000-145 C:IUserslathatelBoxlProjectslGlenwood Springs-ProjectslGS06327.000-Rio Grande Place ImprovemenlslGS06327.000 Letter 1.docx Stutsman-Gerbaz Inc. 30376 Highway 82 Snowmass, CO 81654 970 923-2734 Shaw Construction 4/24/2019 2'Over Excavation in Road Aspen City Offices-Utility Relocation 425&455 Rio Grande Place Aspen,CO Bid Breakdown Qty Unit Cost Unit Xtd Cost Comment 2'Over excation below 8"base in road&2'outside curb Excavate 7 Days Fill&Compact 8.5 Days Deliver/Return Smooth Drum 1 Is @ $ 2,370.00 each $ 2,370.00 Transport 5 hrs @ $ 150.00 p/hr $ 750.00 Deliver 336 Pilot cars 10 hrs @ $ 60.00 p/hr $ 600.00 Deliver 336 Transport 4 hrs @ $ 120.00 p/hr $ 480.00 Deliver D-6 336 56 hrs @ $ 220.00 p/hr $ 12,320.00 Excavate GPS 56 hrs @ $ 125.00 p/hr $ 7,000.00 Excavate D6 56 hrs @ $ 180.00 p/hr $ 10,080.00 Excavate GPS 56 hrs @ $ 125.00 p/hr $ 7,000.00 Excavate Lrge Smooth Drum 28 hrs @ $ 180.00 p/hr $ 5,040.00 Labor 192.5 hrs @ $ 50.00 p/hr $ 9,625.00 End/Side Dumps 387.5 hrs @ $121.00 p/hr $ 46,887.50 Haul off fill 336 34 hrs @ $ 220.00 p/hr $ 7,480.00 Grade GPS 34 hrs @ $ 125.00 p/hr $ 4,250.00 Grade D6 68 hrs @ $ 180.00 p/hr $ 12,240.00 Grade GPS 68 hrs @ $ 125.00 p/hr $ 8,500.00 Grade Lrge Smooth Drum 68 hrs @ $ 180.00 p/hr $ 12,240.00 Grade End Dump 562.5 hrs @ $121.00 p/hr $ 68,062.50 Deliver 3/4"road base Labor 221 hrs @ $ 50.00 p/hr $ 11,050.00 2 Labors Water Truck 75 hrs @ $ 110.00 p/hr $ 8,250.00 Moisture condition road base 938 Wheel Loader 75 hrs @ $ 160.00 p/hr $ 12,000.00 Moisture condition road base Supervision 31 hrs @ $ 100.00 p/hr $ 3,100.00 $ 249,325.00 Other Traffic control 1 Is @ $ - each $ - Is not included Dump fees 155 loads @ $ 44.00 p/load $ 6,820.00 Compaction Testing 8 days @ $ 275.00 p/day $ 2,200.00 HP GeoTech $ 9,020.00 Materials 3/4 Base 4716 to @ $ 14.05 p/tn $ 66,259.80 Total $ 66,259.80 Total $ 324,604.80 Add Alternate Provide&Install Geogrid under road 336 8 hrs @ $ 220.00 p/hr $ 1,760.00 938 Wheel Loader 8 hrs @ $ 160.00 p/hr $ 1,280.00 Labor 57 hrs @ $ 50.00 p/hr $ 2,850.00 4 Labors $ 5,890.00 Other Freight 1 Is @ $ 1,200.00 p/Is $ 1,200.00 Allowance-waiting for price $ 1,200.00 Materials Tensar TriAx TX5 Geogrid 9 roll @ $ 1,200.00 each $ 10,800.00 Allowance-waiting for price Mirafi 180 N 12 roll @ $ 643.50 each $ 7,722.00 Misc. 1 Is @ $ 500.00 p/Is $ 500.00 Total $ 19,022.00 Total $ 26,112.00 Notes Traffic control is not included. ROCK CLAUSE,FROST CLAUSE&DEWATERING CLAUSE Add to current Maintainance Bond if required. $ 8,950.00 SHAWPending Change Order No. 010 City of Aspen Civic Space Relocation-City Offices Project No: 10081-02 425 Rio Grande Place Aspen, CO 81611 PCO No.010 Contaminated Soils in Rio Grande Place Date Sent:4/24/2019 Transmitted To: From: Sara Ott, City Manager Brian Thomas, Project Manager Aspen, City of Shaw Construction LLC GJ 130 Galena Street Tel:970-248-2619 Aspen, CO 81611 Fax. Email:brianthomas@shawconstruction.net Description of Proposal: 2 feet over excavation of Rio Grand Place to remove contaminated soils with import backfill per CTO specs This PCO is a 'Not to Exceed' value Cost Summary for Item : 1 Contaminated Soils in Rio Grande Place Phase Description Quantity Unit Price Amount 002300-010 Contaminated Soils in Rio Grande PIs 1 LS 324,604.80 324,604.80 2 feet over excavation of Rio Grand Place to remove contaminated soils with import backfill per CTO specs Net Total for Item 1: $324,604.80 Description Percentage Amount Liability Insurance 0.93% 3,018.82 Total Item#1: $351,058.53 Warranty Reserve 0.60% 1,947.63 P&P Bond 0.66% 2,142.39 Time Extension: NONE Builders Risk 0.37% 1,201.04 Profit 5.45% 18,143.85 Subtotal: $26,453.73 Cost Summary for Item :2 Add Alternate Provide&Install Geogrid under road Phase Description Quantity Unit Price Amount 002300-010 Contaminated Soils in Rio Grande PIz 1 LS 26,112.00 26,112.00 Add Alternate,Provide&Install Geogrid under road Net Total for Item 2: $26,112.00 Description Percentage Amount Liability Insurance 0.93% 242.84 Total Item#2: $28,240.00 Warranty Reserve 0.60% 156.67 P&P Bond 0.66% 172.34 Time Extension: NONE Builders Risk 0.37% 96.61 Profit 5.45% 1,459.54 Subtotal: $2,128.00 Page I of 2 SHAWPending Change Order No. 010 City of Aspen Civic Space Relocation-City Offices Project No: 10081-02 425 Rio Grande Place Aspen, CO 81611 This PCO is a 'Not to Exceed' value Grand Total PCO#010: $379,298.53 Total Time Extension: NONE Submitted By: Shaw Construction LLC GJ Authorized By:Aspen,City of I authorize Shaw Construction to proceed with the work noted above and agree to pay for the work. Signature Date 4.30.19 Signatur4:-;�� ri, 61,LDate �d 1 Name Brian Thomas, Project Manager Name Sara Ott, City Manager Page 2 of 2 CTL I THOMPSON April 24, 2019 City of Aspen 130 S. Galena Street Aspen, CO 81611 Attention: Hailey Guglielmo, EIT Civil Engineer Subject: Existing Fill Recommendations Rio Grande Place Improvements Aspen, Colorado Project No. GS06327.000-145 CTL I Thompson, Inc. (CTL) is providing construction observation and materi- als testing services for the Rio Grande Place Improvements project pursuant to our master agreement to provide professional services for the City of Aspen. On April 23, 2019, James Kellogg, P.E., Glenwood Springs Division Manager for CTL, at- tended a meeting at the site. Representatives from the City of Aspen, Phil Vaughan Construction Management, Concept One Group, Roaring Fork Engineering, Shaw Construction, Stutzman-Gerbaz, and Western Pipeway were also present. The pur- pose of the meeting was to discuss existing fill that is present below parts of Rio Grande Place. At this writing, the composition, thickness, and extent of existing fill below Rio Grande Place is unknown. Our observations indicate the existing pavement has per- formed reasonably well. However, supporting new pavements and structures, such as curb and gutter, on existing fill would involve increased risk of differential move- ment and associated damage as compared to support on undisturbed natural gravel and cobble soil and/or densely-compacted, granular structural fill. The risk of poor performance would be further increased since parts of the street will be supported on backfill in trenches for new utility construction. Supporting pavements and structures on variable subgrade soils and/or soils with poor support characteristics is not rec- ommended. Performance of the new pavements and structures cannot be reasona- bly predicated for such variable and unknown conditions. CTL recommends removal of existing fill below Rio Grande Place to a depth of 2 feet, or until undisturbed natural gravel and cobble soils are encountered. Our representative should be called to observe subgrade soils exposed, as well as the subexcavation process to remove unsuitable soils. In some areas, it may be neces- sary to place a geofabric or geogrid on the subsurface of subexcavated areas, prior to placing structural fill to re-attain pavement subgrade elevation. This will need to be evaluated by our representative during construction. In general, the subexcavation process can be limited to areas below the street and curb and gutter. Existing fill below sidewalks that will be subject only to 234 Center Drive I Glenwood Springs, Colorado 81601 Telephone: 970-945-2809 Fax: 970-945-7411 pedestrian traffic could require limited removal and replacement of existing fill. This will need to be evaluated in the field during construction. Utility trenches for the project are currently being backfilled with imported ag- gregate base course that appears similar to a CDOT Class 6. We recommend that the same aggregate base course be used to replace subexcavated areas of existing fill. The aggregate base course should be placed in loose lifts of about 8-inches thick, moisture-treated to within 2 percent of optimum content, and compacted to at least 95 percent of standard Proctor (ASTM D698) maximum dry density. Our repre- sentative should be called to observe placement and test moisture and density of fill. We are available to discuss the contents of this letter. If you have any ques- tions, please call. J. Very trul Cyon ;61A) •CTL. HOPIIIPSON;:,fNG. r 35298 r« `L�b J es D."14,51- 1110''991 P.E. Division Manger JDK:ac CITY OF ASPEN 2 RIO GRANDE PLACE IMPROVEMENTS PROJECT NO.GS06327.000-145 C:1Userslathate\BoxlProjectslGlenwood Springs-Projects%GS06327.000-Rio Grande Place Improvements%GS06327.000 Letter 1.docx Stutsman-Gerbaz Inc. 30376 Highway 82 Snowmass, CO 81654 970 923-2734 Shaw Construction 4/24/2019 2'Over Excavation in Road Aspen City Offices-Utility Relocation 425&455 Rio Grande Place Aspen,CO Bid Breakdown Qty Unit Cost Unit Xtd Cost Comment 2'Over excation below 8"base in road&2'outside curb Excavate 7 Days Fill&Compact 8.5 Days Deliver/Return Smooth Drum 1 Is @ $ 2,370.00 each $ 2,370.00 Transport 5 hrs @ $ 150.00 p/hr $ 750.00 Deliver 336 Pilot cars 10 hrs @ $ 60.00 p/hr $ 600.00 Deliver 336 Transport 4 hrs @ $ 120.00 p/hr $ 480.00 Deliver D-6 336 56 hrs @ $ 220.00 p/hr $ 12,320.00 Excavate GPS 56 hrs @ $ 125.00 p/hr $ 7,000.00 Excavate D6 56 hrs @ $ 180.00 p/hr $ 10,080.00 Excavate GPS 56 hrs @ $ 125.00 p/hr $ 7,000.00 Excavate Lrge Smooth Drum 28 hrs @ $ 180.00 p/hr $ 5,040.00 Labor 192.5 hrs @ $ 50.00 p/hr $ 9,625.00 End/Side Dumps 387.5 hrs @ $121.00 p/hr $ 46,887.50 Haul off fill 336 34 hrs @ $ 220.00 p/hr $ 7,480.00 Grade GPS 34 hrs @ $ 125.00 p/hr $ 4,250.00 Grade D6 68 hrs @ $ 180.00 p/hr $ 12,240.00 Grade GPS 68 hrs @ $ 125.00 p/hr $ 8,500.00 Grade Lrge Smooth Drum 68 hrs @ $ 180.00 p/hr $ 12,240.00 Grade End Dump 562.5 hrs @ $121.00 p/hr $ 68,062.50 Deliver 3/4"road base Labor 221 hrs @ $ 50.00 p/hr $ 11,050.00 2 Labors Water Truck 75 hrs @ $ 110.00 p/hr $ 8,250.00 Moisture condition road base 938 Wheel Loader 75 hrs @ $ 160.00 p/hr $ 12,000.00 Moisture condition road base Supervision 31 hrs @ $ 100.00 p/hr $ 3,100.00 $ 249,325.00 Other Traffic control 1 Is @ $ - each $ - Is not included Dump fees 155 loads @ $ 44.00 p/load $ 6,820.00 Compaction Testing 8 days @ $ 275.00 p/day $ 2,200.00 HP GeoTech $ 9,020.00 Materials 3/4 Base 4716 to @ $ 14.05 p/tn $ 66,259.80 Total $ 66,259.80 Total $ 324,604.80 Add Alternate Provide&Install Geogrid under road 336 8 hrs @ $ 220.00 p/hr $ 1,760.00 938 Wheel Loader 8 hrs @ $ 160.00 p/hr $ 1,280.00 Labor 57 hrs @ $ 50.00 p/hr $ 2,850.00 4 Labors $ 5,890.00 Other Freight 1 Is @ $ 1,200.00 p/Is $ 1,200.00 Allowance-waiting for price $ 1,200.00 Materials Tensar TriAx TX5 Geogrid 9 roll @ $ 1,200.00 each $ 10,800.00 Allowance-waiting for price Mirafi 180 N 12 roll @ $ 643.50 each $ 7,722.00 Misc. 1 Is @ $ 500.00 p/Is $ 500.00 Total $ 19,022.00 Total $ 26,112.00 Notes Traffic control is not included. ROCK CLAUSE,FROST CLAUSE&DEWATERING CLAUSE Add to current Maintainance Bond if required. $ 8,950.00