ADDENDUM NO. 1. Description of BID 8125: Intersection Improvements at Vine & Shields

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ADDENDUM NO. 1

SPECIFICATIONS AND CONTRACT DOCUMENTS

Description of BID 8125: Intersection Improvements at Vine & Shields OPENING DATE: 3:00 PM (Our Clock) June 17, 2015

To all prospective bidders under the specifications and contract documents described above, the following changes/additions are hereby made and detailed in the following sections of this addendum:

Exhibit 1 – Revised Bid Schedule Exhibit 2 – Clarifications & Revisions Exhibit 3 – Revised Specifications Exhibit 3 – Revised Drawings

Please contact John Stephen, CPPO, LEED AP, Senior Buyer at (970) 221-6777 with any questions regarding this addendum.

RECEIPT OF THIS ADDENDUM MUST BE ACKNOWLEDGED BY A WRITTEN STATEMENT ENCLOSED WITH THE BID/QUOTE STATING THAT THIS ADDENDUM HAS BEEN RECEIVED.

Financial Services Purchasing Division 215 N. Mason St. 2^nd Floor PO Box 580

Fort Collins, CO 80522 970.221.6775 970.221.6707 fcgov.com/purchasing

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EXHIBIT 1 – REVISED BID SCHEDULE

201-00000 CLEARING AND GRUBBING LS 1 $ -

202-00010 REMOVAL OF TREE EA 59 $ -

202-00031 REMOVAL OF FIRE HYDRANT EA 1 $ -

202-00032 REMOVAL OF VALVE EA 1 $ -

202-00035 REMOVAL OF PIPE LF 20 $ -

202-00200 REMOVAL OF SIDEWALK SY 449 $ -

202-00203 REMOVAL OF CURB AND GUTTER LF 680 $ -

202-00205 REMOVAL OF WHEEL STOP EA 9 $ -

202-00210 REMOVAL OF CONCRETE PAVEMENT SY 37 $ -

202-00220 REMOVAL OF ASPHALT MAT SY 6627 $ -

202-00810 REMOVAL OF GROUND SIGN EA 8 $ -

202-00815 REMOVE SIGN (SPECIAL) EA 1 $ -

202-00828 REMOVAL OF TRAFFIC SIGNAL EQUIPMENT LS 1 $ -

202-01000 REMOVAL OF FENCE LF 1093 $ -

203-00010 UNCLASSIFIED EXCAVATION (COMPLETE IN PLACE) CY 2355 $ -

203-00010 MUCK EXCAVATION CY 450 $ -

203-01597 POTHOLING HOUR 50 $ -

206-00510 FILTER MATERIAL (CLASS A) CY 0.7 $ -

207-00210 STOCKPILE TOPSOIL CY 50 $ -

207-00405 TOPSOIL (SPECIAL) CY 279.4 $ -

208-00018 GRAVEL BAG LF 198 $ -

208-00020 SILT FENCE LF 2186 $ -

208-00045 CONCRETE WASHOUT STRUCTURE EA 1 $ -

208-00050 STORM DRAIN INLET PROTECTION EA 2 $ -

208-00070 VEHICLE TRACKING PAD EA 1 $ -

208-00103 SEDIMENT REMOVAL AND DISPOSAL (LABOR) HOUR 20 $ -

208-00105 SEDIMENT REMOVAL AND DISPOSAL (EQUIPMENT) HOUR 20 $ -

208-00205 EROSION CONTROL SUPERVISOR HOUR 40 $ -

210-00010 RESET MAILBOX STRUCTURE EA 1 $ -

210-00035 RESET WATER METER EA 2 $ -

210-00810 RESET GROUND SIGN EA 7 $ -

210-04010 ADJUST MANHOLE EA 4 $ -

210-04015 MODIFY MANHOLE EA 1 $ -

210-04050 ADJUST VALVE BOX EA 2 $ -

212-00006 SEEDING (NATIVE) AC 0.11 $ -

212-00032 SOIL CONDITIONING AC 0.11 $ -

212-00040 SOIL PREPARATION (LAWN) AC 0.37 $ -

212-00050 SOD SF 15886 $ -

UNIT COST COST

ITEM NO. ITEM DESCRIPTION UNIT QUANTITY

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213-00004 MULCHING (WEED FREE STRAW) AC 0.11 $ -

213-00005 MULCHING (DECORATIVE) CF 1614 $ -

213-00008 MULCHING (WOOD CHIP) CF 166 $ -

213-00067 ROCK MULCH (WEED FREE) SF 2029 $ -

213-00070 LANDSCAPE WEED BARRIER FABRIC SY 734 $ -

213-00440 METAL LANDSCAPE BORDER (1/8 x 4 INCH) LF 85 $ -

213-00700 LANDSCAPE BOULDER EA 117 $ -

214-0000 LANDSCAPE MAINTENANCE LS 1 $ -

214-00215 DECIDIOUS TREE (1.5 INCH CALIPER) EA 8 $ -

214-00220 DECIDIOUS TREE (2 INCH CALIPER) EA 33 $ -

214-00350 DECIDIOUS SHRUB (5 GALLON CONTAINER) EA 120 $ -

214-00506 EVERGREEN TREE (6 FOOT) (BALL AND BURLAP) EA 1 $ -

214-00650 EVERGREEN SHRUB (5 GALLON CONTAINER) EA 34 $ -

214-00910 PERENNIALS (1 GALLON CONTAINER) EA 310 $ -

304-06000 AGGREGATE BASE COURSE (ABC)(CLASS 6) TON 2035.5 $ -

403-00720 HOT MIX ASPHALT (PATCHING)(ASPHALT) TON 19 $ -

403-33741 HOT MIX ASPHALT (GRADING S) (75) (PG 64-22) TON 730.8 $ -

403-34841 HOT MIX ASPHALT (GRADING S) (75) (PG 64-28) TON 265.7 $ -

412-00800 CONCRETE PAVEMENT (8 INCH) SY 426.6 $ -

412-00801 CONCRETE PAVEMENT (8 INCH) (SPEICAL) (DAVIS COLOR TILE RED 1117) SY 216.6 $ - 412-00801 CONCRETE PAVEMENT (8 INCH) (SPEICIAL) (DAVIS COLOR OMAHA TAN 5084) SY 286.9 $ - 412-00801 CONCRETE PAVEMENT (8 INCH) (SPECIAL) (DAVIS COLOR COCOA 6130) SY 126.3 $ -

412-00850 CONCRETE PAVEMENT(8.5") SY 2823.4 $ -

412-00870 CONCRETE PAVEMENT (8.5") (FAST TRACK) SY 941.1 $ -

420-00300 GEOTEXTILE (REINFORCEMENT) SY 1200 $ -

504-08050 STONE LANDSCAPE WALL SF 295.5 $ -

506-00210 RIPRAP (9 INCH) CY 2 $ -

601-00000 ART FOUNDATION L S 1 $ -

601-03000 CONCRETE CLASS D CY 21 $ -

602-00000 REINFORCING STEEL LB 829 $ -

605-00004 4 INCH N0N-PERFORATED PIPE UNDERDRAIN LF 233 $ -

605-00040 4 INCH PERFORATED PIPE UNDERDRAIN LF 194 $ -

605-85000 SURFACE SAND FILTER SF 158 $ -

607-11530 FENCE (SPECIAL) LF 210 $ -

608-00006 CONCRETE SIDEWALK (6 INCH) SY 1398 $ -

608-00010 CONCRETE CURB RAMP SY 313 $ -

609-21010 CURB & GUTTER TYPE 2 (SECTION I-B) LF 1084 $ -

609-21020 CURB & GUTTER TYPE 2 (SECTION II-B) LF 2136 $ -

609-21021 CURB & GUTTER TYPE 2 (SECTION II-M) LF 297 $ -

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609-40010 CURB TYPE 2 (SECTION B) LF 220 $ -

609-40130 CURB MEDIAN(SPECIAL) LF 411 $ -

614-80321 BARRICADE (TYPE 3 M-A) EA 1 $ -

619-50480 6 INCH PLASTIC PIPE LF 36 $ -

619-75048 6 INCH GATE VALVE EA 2 $ -

619-78048 6 INCH FIRE HYDRANT EA 2 $ -

621-00450 DETOUR PAVEMENT SY 983 $ -

623-00000 IRRIGATION SYSTEM LS 1 $ -

623-00602 2 INCH PLASTIC PIPE (IRRIGATION/SLEEVE) LF 900 $ -

623-00604 4 INCH PLASTIC PIPE (IRRIGATION/SLEEVE) LF 375 $ -

626-0000 MOBILIZATION LS 1 $ -

630-00000 FLAGGING HOUR 1200 $ -

630-00007 TRAFFIC CONTROL INSPECTION DAY 39 $ -

630-00012 TRAFFIC CONTROL MANAGEMENT DAY 96 $ -

630-10005 TRAFFIC CONTROL LS 1 $ -

630-80359 PORTABLE MESSAGE SIGN PANEL DAY 10 $ -

630-80370 CONCRETE BARRIER TEMPORARY LF 600 $ -

-

$

700-70010 F/A MINOR CONTRACT REVISIONS FA 1 $60,000.00 $ 60,000.00

700-70011 F/A PARTNERING FA 1 $2,500.00 $ 2,500.00

700-70016 F/A FUEL COST ADJUSTMENT FA 1 $8,000.00 $ 8,000.00

700-70019 F/A ASPHALT CEMENT COST ADJUSTMENT FA 1 $15,000.00 $ 15,000.00

700-70380 F/A EROSION CONTROL FA 1 $2,500.00 $ 2,500.00

700-70021 F/A ON THE JOB TRAINING FA 1 $960.00 $ 960.00

IN WORDS:

TOTAL BASE BID

Force Account

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EXHIBIT 2 – CLARIFICATIONS & REVISIONS I. Project Clarifications:

A. None at this time.

II. Revisions to the Project Planset:

A. The Curb Type 4 shown in the plans has been changed to Curb Type 2. This change affects Sheets 11, 22, 23, 26, 27, 28, 29, 51 and 52.

B. The Curb and Gutter Type 4 shown in the plans has been changed to Curb and Gutter Type 2. This change affects Sheets 11, 22, 23, 26, 27, 28, 29, 51 and 52.

C. Hot Mix Asphalt Typical Sections and HMA Lift Detail have been changed to replace Grading SX (100) (PG 64-22) with Grading S (75) (PG 64-28). This change affects Sheets 7, 10, 21 and 25.

III. Revisions to the Project Specifications:

Below is a summary of each revision to the Project Specifications. See the attached Revised Project Specifications for more specific details regarding contract changes.

Revised Project Specifications have been included for the following items:

A. Revision of Section 403 – Hot Mix Asphalt

o This revision replaces the Grading SX (100) (PG 64-22) with Grading S (75) (PG 64-28) in the pay items and modifies Table 403-1 with the changes.

B. Revision of Section 621 – Detour Pavement

o This revision specifies that the detour pavement thickness shall be at least 4 inches.

C. Addition of Section 403 – Hot Mix Asphalt (Warranty)

o This addition describes the amount of warranty work at the Contractor’s expense valued at up to $50,000.

IV. Pre-Bid Clarifications Not Resulting in Changes to the Bid Documents:

A. Pre-Bid PowerPoint slide 8 specifies CDOT forms to be completed by contractor.

The forms listed in the PowerPoint are not correct. The forms listed in the advertisement documents are correct. Contractor should use the advertisement documents.

V. Pre-Bid Clarifications Resulting in Changes to the Bid Documents:

A. None at this time

VI. Revisions to the Project Bid Tab:

A. Hot Mix Asphalt Grading SX (100) (PG 64-22) pay item is replaced with Hot Mix Asphalt Grading S (75) (PG 64-28). Unit of measurement and quantity remain the same.

B. Curb Type 4 (Section B) pay item replaced with Curb Type 2 (Section B). Unit of measurement and quantity remain the same.

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REVISION OF SECTION 403 HOT MIX ASPHALT

Section 403 of the Standard Specifications is hereby revised for this project as follows:

Subsection 403.02 shall include the following:

The design mix for hot mix asphalt shall conform to the following:

TABLE 403-1

Property Test

Method

Value For Grading

S (75) (Patching)

Air Voids, percent at:

N (design) CPL 5115

3.5 – 4.5

Lab Compaction (Revolutions):

N (design) CPL 5115

75

Stability, minimum CPL 5106 28 28

Minimum % of the aggregate retained on the 4.75 mm (No. 4) sieve having at least 2 mechanically induced fractured faces

CP 45 60 60

Accelerated Moisture Susceptibility Tensile Strength Ratio (Lottman), minimum

CPL 5109 Method B

80

Minimum Dry Split Tensile

Strength, kPa (psi)

CPL 5109

Method B 205 (30) 205 (30)

Grade of Asphalt Cement, Top

Layer PG 64-28

Grade of Asphalt Cement, Layers

below Top PG 64-22 PG 64-22

Voids in the Mineral Aggregate

(VMA) % minimum CP 48 See Table

403-2

See Table

403-2

Voids Filled with Asphalt (VFA), % AI MS-2 65-80 65-80 Dust to Asphalt Ratio

Fine Gradation Coarse Gradation

CP 50

0.6 - 1.2 0.8 - 1.6

EXHIBIT 3 - REVISED SPECIFICATIONS

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Note: AI MS-2 = Asphalt Institute Manual Series 2

Note: The current version of CPL 5115 is available from the Region Materials Engineer.

Note: Mixes with gradations having less than 40% passing the 4.75 mm (No. 4) sieve shall be approached with caution because of constructability problems.

Note: Gradations for mixes with a nominal maximum aggregate size of one-inch or larger are considered a coarse gradation if they pass below the maximum density line at the #4 screen.

Gradations for mixes with a nominal maximum aggregate size of ¾ inch or smaller are considered a coarse gradation if they pass below the maximum density line at the #8 screen.

All mix designs shall be run with a gyratory compaction angle of 1.25 degrees and properties must satisfy Table 403-1. Form 43 will establish construction targets for Asphalt Cement and all mix properties at Air Voids up to

1.0 percent below the mix design optimum

Table 403-2

Minimum Voids in the Mineral Aggregate (VMA) Nominal

Maximum Size*, mm (inches)

***Design Air Voids **

3.5% 4.0% 4.5% 5.0%

37.5 (1½) 11.6 11.7 11.8

N/A

25.0 (1) 12.6 12.7 12.8

19.0 (¾) 13.6 13.7 13.8

12.5 (½) 14.6 14.7 14.8

9.5 (⅜) 15.6 15.7 15.8

4.75 (No. 4) 16.6 16.7 16.8 16.9

* The Nominal Maximum Size is defined as one sieve larger than the first sieve to retain more than 10%.

** Interpolate specified VMA values for design air voids between those listed.

*** Extrapolate specified VMA values for production air voids beyond those listed.

The Contractor shall prepare a quality control plan outlining the steps taken to minimize segregation of HMA.

This plan shall be submitted to the Engineer and approved prior to beginning the paving operations.

When the Engineer determines that segregation is unacceptable, the paving shall stop and the cause of segregation shall be corrected before paving operations will be allowed to resume.

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The hot mix asphalt top layer shall not contain any reclaimed or recycled asphalt pavement.

Hot mix asphalt for patching shall conform to the gradation requirements for Hot Mix Asphalt (Grading S) (100).

To prevent stripping, a minimum of 1 percent hydrated lime by weight of the combined aggregate shall be added to the aggregate for all hot mix asphalt.

Acceptance samples shall be taken at the location specified in Method B of CP-41.

Subsection 403.03 shall include the following:

The Contractor shall construct the work such that all roadway pavement placed prior to the time paving operations

end for the year, shall be completed to the full thickness required by the plans. The Contractor's Progress Schedule shall show the methods to be used to comply with this requirement.

Delete subsection 403.05 and replace with the following:

403.05 The accepted quantities of hot mix asphalt will be paid for in accordance with subsection 401.22, at the contract unit price per ton for the bituminous mixture.

Payment will be made under:

Pay Item Pay Unit

Hot Mix Asphalt (Patching) (Asphalt) Ton

Hot Mix Asphalt (Grading S) (75) (PG 64-22) Ton Hot Mix Asphalt (Grading S) (75) (PG 64-28) Ton

Aggregate, asphalt recycling agent, additives, hydrated lime, and all other work necessary to complete each hot mix asphalt item will not be paid for separately, but shall be included in the unit price bid.

When the pay item includes the PG binder grade, the asphalt cement will not be measured and paid for separately, but shall be included in the work. When the pay item does not include the PG binder grade, asphalt cement will be measured and paid for in accordance with Section 411. Asphalt cement used in Hot Mix Asphalt (Patching) will not be measured and paid for separately, but shall be included in the work.

Excavation, preparation, and tack coat of areas to be patched will not be measured and paid for separately, but shall be included in the work.

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REVISION OF SECTION 403 HOT MIX ASPHALT (WARRANTY)

Section 403 of the Standard Specifications is hereby revised for this project to include the following:

DESCRIPTION

This work consists of the construction of warranted hot mix asphalt in accordance with these specifications, and in conformity with the lines and grades shown on the plans or established.

MATERIALS AND CONSTRUCTION REQUIREMENTS

The provisions of Section 401 do not apply to warranted hot mix asphalt except for the following:

Longitudinal joints shall conform to the requirements of subsection 401.16. Roadway smoothness shall conform to the requirements of subsection 401.20. Paving limitations shall conform to the requirements of subsection 401.07.

The Contractor shall be responsible for the hot mix asphalt mix design, production, placement,

performance, process and thickness control testing, and warranty work for a period of 2 years from the date of pavement acceptance.

The warranted hot mix asphalt shall be a mixture of aggregate, filler or additives if used, bituminous material, hydrated lime, and reclaimed material if used. A minimum of one percent hydrated lime by weight of the combined aggregate shall be added to the aggregate for all warranted hot mix asphalt.

The Contractor shall establish the materials mix design (MMD) for the hot mix asphalt. The MMD consists of an aggregate gradation based on percentages of the material passing various sieve sizes, a percentage by weight of bituminous material to be added to the aggregate, and a temperature for the mixture at discharge from the mixing plant. The Contractor shall select all materials to be used in the mixture including the asphalt cement. Transverse cracking shall not be included in the performance warranty if the asphalt cement meets or exceeds the low temperature required for Superpave

performance grade PG 64-28 conforming to subsection 702.01.

The minimum thickness placed shall be as shown on the plans.

Two weeks before starting paving, the Contractor shall provide the Engineer the MMD, the method of developing the MMD, all MMD testing, a list of materials, and all thickness testing methods.

The hot mix asphalt shall be warranted for 2 years against the types of distress listed in (d) below.

(a) Warranty and Warranty Bond. By submission of its bid in response to this specification, the Contractor warrants that all of the hot mix asphalt placed on the project shall be free of defective materials and workmanship for a period of 2 years from the date of pavement acceptance as defined in the Revision of Section Acceptance.

The Contractor further warrants that it will ensure proper and prompt performance and completion of warranty work in accordance with this specification. Warranty work shall be performed when any defect occurs in the hot mix asphalt materials or workmanship within that 2 year period and warranty work is required or needed on that pavement. Prompt performance and

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completion of warranty work includes payment for all labor performed and for all equipment and materials used.

All such warranty work shall be solely at the Contractor’s expense up to $50,000. The City may elect to have additional work performed and will be responsible for payment of actual expenses incurred by the Contractor. Additional work shall be authorized in writing by the Engineer. All documentation of actual costs incurred in the performance of warranty work shall be made available for audit by the City.

The Contractor shall provide a warranty performance bond ("warranty bond") to guarantee the full performance of the warranty work described in this specification. The warranty bond shall be in the amount of $50,000.

The warranty bond shall be a single term 2 year (plus an additional nine months in certain circumstances) warranty bond that will be in effect for the entire warranty period. The warranty bond shall be in effect upon pavement acceptance, and it shall remain in effect for the total of 2 years from that date. The Contractor shall provide a 2 year warranty bond that fully complies with this specification to the Department at the time of execution of the Contract.

The need for warranty work, and the performance of that warranty work, shall be determined in accordance with (d) below. The Contractor will be released from further warranty work at the end of the warranty period or upon completion of any delay warranty work, as described above, whichever is later, provided all required warranty work has been satisfactorily completed.

(b) Pavement Evaluation Team (PET). The PET shall have the final decision authority for all warranty work. The PET shall consist of three subject matter experts not affiliated with the project. One member will be a City of Fort Collins staff person, the second member will represent the asphalt paving industry, and the third will be mutually agreed upon by the other two members. Each member of the PET shall have a minimum 15 years experience in one or a combination of the following disciplines: pavement management, asphalt pavement design, asphalt pavement construction, maintenance management or asphalt pavement maintenance. The City will cover expenses associated with performing the duties of the PET for the City member and the mutually agreed upon third party. The Contractor shall cover expenses associated with performing the duties of the PET for the asphalt paving industry member

Members will be replaced as necessary based upon the criteria above.

The City representative on the PET shall be responsible for scheduling distress surveys, preparing the reports, and notifying the Engineer when warranty work is required.

(c) Warranty Work. During the warranty period the warranty work shall be performed at no cost to the City and shall be based on the results of the pavement distress survey. Warranty work to be

performed and materials to be used shall be in accordance with the remedial actions and other requirements in (d). The Contractor may propose alternative actions for warranty work to the Engineer who will submit the proposal to the PET. All warranty work to repair distresses shall be done in accordance with the project specifications and plans and current City of Fort Collins and CDOT standards and coordinated with the Engineer. Innovative materials and techniques may be considered. The PET will render a final decision by majority vote.

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During the warranty period, the Contractor may monitor the pavement in question using

nondestructive procedures. All proposed remedial actions shall be coordinated with the Engineer.

Coring, milling or other destructive procedures shall not be performed by the Contractor without prior written consent of the Engineer. The Contractor is not responsible for damages that are a result of coring, milling or other destructive procedures conducted by the City, utility companies or other entities not under the control of the Contractor.

When notified by the PET that warranty work is required, the Engineer will notify the Contractor and Surety, in writing. If the Contractor or Surety fails to respond in writing within fifteen days after receiving written notice from the Engineer, the City may make repairs or contract to have the repairs made and the Contractor and surety shall be responsible for the total cost of these repairs including lane rental fees.

At least 30 days before the expiration of the warranty, and at any other time during the warranty period as deemed necessary by the Engineer, the PET shall conduct a pavement distress survey. If the Engineer is notified by the PET that warranty work is required in accordance with the distress indicators, the Engineer will notify the Contractor and surety in writing. If the Contractor or the Surety fails to respond in writing within 15 days after receiving written notice from the Engineer, the City will complete the repairs or contract to have the repairs completed and the Contractor and Surety shall be responsible for the total cost of these repairs including the lane rental fees. If it is necessary to delay performance of the final warranty work due to weather limitations or other reasons in the public interest, the Contractor and City shall agree to the extent of work to be performed. Any additional distress resulting from the delay will be the responsibility of the Department.

Warranty work that requires a resurfacing of the pavement shall be performed only when weather conditions are in accordance with subsection 401.07.

The Contractor shall maintain traffic at all times as detailed in the Traffic Control Plan. Warranty work shall be performed during the times of day and days of week specified for the original contract work.

(d) Pavement Distress Indicators, Thresholds and Remedial Action. Pavement distress indicators shown below shall be used as the basis for determining the distress types to be considered for repair under the warranty and as the basis for determining the methods for measuring distresses.

The pavement distress surveys are conducted by dividing the roadway into nominal one-mile sections. A one-tenth mile segment in each mile will be evaluated for pavement distress. The segment evaluated shall be from 0.3 to 0.4 miles from the start of the section. In addition, in each section, a random one-tenth mile segment will be surveyed. The random one-tenth mile segments will be determined by the PET each time a survey is conducted.

The PET will conduct intermediate surveys if requested in writing by the Engineer. The PET will notify the Engineer in writing of the survey results within 15 days. The Engineer will immediately notify the Contractor in writing. Traffic control for conducting the surveys will be the

responsibility of the Department.

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If any survey requires remedial action and the Contractor does not dispute the survey results, the Contractor shall remedy the distress. If the survey requires remedial action and the Contractor disputes the survey results, the Contractor shall notify the Engineer in writing within 15 days of receiving notice. The notification shall describe the contractual and legal basis for the

disagreement with the survey results. The Engineer will transmit the Contractor's notification to the PET which will render a final decision and notify the Engineer in writing within 30 days of the Contractor's notification.

The PET shall determine the remedial action to be performed in all segments in the project where the threshold level is met or exceeded. If areas outside the survey segments are suspected of meeting or exceeding a threshold level, the PET will divide the entire project into 0.1 mile

segments and conduct the distress survey in any, or all, segments to see if a threshold level has been met or exceeded. Unless otherwise directed by the Engineer remedial action shall be performed in the same calendar year as the survey that indicated the threshold level is met or exceeded.

Remedial action shall be applied to each entire segment in which the threshold level is met or exceeded unless otherwise noted under remedial action. When the remedial action required includes an overlay, the action shall also be performed on the hot mix asphalt shoulders and adjacent lanes.

If remedial action necessitates a corrective action to the pavement markings, adjacent lanes or roadway shoulders, then such corrective action to the pavement markings, adjacent lanes and shoulders shall be performed at the expense of the Contractor.

When remedial action requires the removal of pavement, the pavement shall be replaced with a mix approved by the PET. The mix shall be placed according to the Contractor's QCP. Pavement shall be removed by cutting neat lines vertically for the full depth of the affected layer unless otherwise specified. Removal areas shall be rectangular, and the sides and bottoms shall be thoroughly coated with an approved tack coat prior to pavement replacement.

If, anytime during the warranty period, 30 percent or more of the project segments require or have received remedial action, then the entire project shall receive a remedial action as determined by the PET.

The Contractor will not be held responsible for distresses which are caused by factors beyond the control of the Contractor. A finding that the distress is due to factors outside the control of the Contractor shall be based on evidence submitted by the Contractor to the Engineer. The PET will make the final determination.

Distress types to be warranted, the threshold levels requiring remedial action, and the remedial action to be performed by the Contractor shall be according to the following pavement distress indicators:

1. Permanent Deformation - Rutting and Shoving. Rutting is longitudinal surface depression in the wheel path. Shoving is longitudinal displacement of a localized area of the pavement surface caused by traffic pushing against the pavement. Rutting shall be measured at 50 foot intervals using a 6 foot straight edge, and taking several measurements transversely across the pavement to determine the maximum rut depth. Rut depths shall be rounded to the nearest

0.10 inch.

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Severity Quantity Preferred Actions

(Actual action to be approved by PET)

Low > 0.3 to 0.5 inch Micromill or diamond grind to remove ruts, chip seal, microsurface or remove and replace.

Moderate > 0.5 to 1 inch Micromill or diamond grind to remove ruts then microsurface or remove and replace.

High > 1 inch Evaluate the cause and then remove and replace.

The Permanent Deformation - Correction of rutting and shoving will not be required when the accumulated design lane Equivalent Single Axle Loads (ESAL's) exceed

"w" at time intervals shown below:

Table A: 2 year Warranty Rutting Rate of Loading Table

Time after Pavement Acceptance

(sampling intervals) Maximum Accumulated ESAL's

(where D = 3 year projection design lane ESAL's) "w"

6 months 0.25 x D 12 months 0.50 x D 18 months 0.75 x D 24 months D

If the rutting is suspected to be caused by the base or subgrade, coring (or cross sectional sampling) will be conducted by the Department to determine the cause of the rutting. The Contractor shall have the option to obtain cores and cross- section samples at his own expense, including repair of the sampled areas, and traffic control.

2. Pot Holes. Pot holes are bowl shaped depressions of various sizes in the pavement surface caused by loss of pavement mix.

Low < 1 inch deep and > 0.2 feet2 Seal coat or crack / joint seal Moderate 1 inch to 2 in. deep and > 0.2 feet2 Patch

High > 2 inch deep and > 0.2 feet2 Remove and replace to 2 feet beyond apparent distress.

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3. Longitudinal Joint Separation. Longitudinal joint separation is loss of the pavement surface or depressions within 18 inches of a longitudinal joint.

Severity Quantity

(Mean Width)

Preferred Actions

Low ≤ 0.25 inch Seal cracks with hot poured joint and crack

sealant materials that meet the requirements of ASTM D 3405.

Moderate > 0.25 inch and ≤ 0.75 inch Seal cracks with hot poured joint and crack sealant materials which meet the requirments of ASTM D 3405, ASTM D 5078 or ASTM D 5078 with 22% scrap rubber

High > 0.75 in. Remove and replace a minimum of 6 inches

beyond distress laterally and 2 feet beyond distress longitudinally. In no instance shall resulting joints be placed in the wheelpath.

4. Raveling and Weathering. Raveling and weathering are the wearing away of the pavement surface caused by the dislodging of aggregate particles (raveling) and the loss of asphalt binder (weathering). Affected area shall be repaired to 24” beyond apparent distress.

Preferred actions include slurry seal, chip seal, Novachip, ultra-thin overlay or remove and replace. The actual action shall be approved by the PET.

5. Bleeding. Bleeding is a film of bituminous material on the pavement surface which creates a shiny, glass-like, reflective surface.

Low Coloring of surface visible Observe more frequently Moderate Asphalt free on surface Microsurface or SMA overlay High Asphalt free on surface

and tire tracks

Remove and replace full width of lane or shoulder to two feet longitudinally beyond affected area.

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6. Delamination of Pavement Layers. Delamination of pavement is the separation of one layer from the layer below it.

Remedial action for delamination: affected area shall be removed and replaced to one foot beyond the apparent distress.

7. Transverse Cracking. Transverse cracks are cracks relatively perpendicular to the pavement

centerline. The highest severity level present for at least 10% of the total length of the crack shall be assigned. Random cracks with transverse cracks are cracks that occur randomly and are within two feet of the transverse crack. Since the top mat of asphalt pavement will be placed over Portland Cement Concrete Pavement, transverse cracks determined to be caused by existing joints in the concrete pavement will not be included as part of the warranty. Spalling with transverse cracks is the cracking, breaking or chipping of the pavement surface within two feet of the transverse crack.

Severity

Quantity Preferred Action

(actual action to be approved by PET)

Low < 0.25 inch wide Seal cracks with hot poured joint

and crack sealant materials that meet the requirements of ASTM D 3405.

Moderate < 0.75 inch wide

< 0.25 inch wide with spalling or random cracking

Seal cracks with hot poured joint and crack sealant materials which meet the requirments of ASTM D 3405, ASTM D 5078 or

ASTM D 5078 with 22% scrap rubber.

High ≥ 0.75 in. wide

< 0.75 in. wide with spalling and random cracking

Remove and replace full width of lane or shoulder to one foot longitudinally beyond the apparent distress.

(16)

Elective or Preventive Action. Elective or Preventive action shall be a Contractor or Surety option, at the Contractor or Surety expense, subject to the approval of the Engineer. The Contractor or Surety shall notify the Engineer in writing if it proposes to perform elective or preventive work. Elective or Preventive work shall be done during times set forth in the Contract for original contract work. Lane rental fees will be assessed.

(e) Emergency Work. For warranted distresses, the Engineer may request, in writing, immediate action of the Contractor and Surety for the safety of the traveling public. The Contractor or Surety shall have the first option to perform the emergency work. If the Contractor or Surety cannot perform the emergency work within 24 hours, the Engineer may have the emergency work done by other forces and seek reimbursement from the Contractor or Surety accordingly. Emergency work performed by other forces shall not alter the requirements, responsibilities, or obligations of the warranty.

(f) Traffic Control. Construction Traffic control for warranty work shall be performed in accordance with Section 630 at the Contractor's expense.

(g) Process Control Testing: The Contractor shall perform process control testing in accordance with the Revision of Section 106, Quality Control for Warranted Hot mix asphalt.

Cost of the two year warranty will be incidental to the placement of all hot mix asphalt pavement.

(17)

SECTION 621 DETOUR PAVEMENT

Section 621 is hereby added to the Standard Specifications for this project and shall include the following:

DESCRIPTION

This work shall consist of construction of detour pavement as shown on the plans. It is the intent of the City that this item include all work and materials necessary to provide a detour roadway meeting or exceeding the requirements as contained herein and as shown on the plans.

MATERIALS

The Contractor shall be responsible for quality control required to assure adequate quality of Hot Mix Asphalt used in the construction of the detour.

CONSTRUCTION REQUIREMENTS

Detour pavement construction shall include grading, embankment material, planing and other items of work necessary for the construction of detour pavement. The Contractor shall construct temporary ditches, temporary culvert pipe, and maintain existing storm sewer necessary for the control of storm drainage. Detour pavement thickness shall be at least 4 inches. The Contractor shall remove the detour pavement when it is no longer needed to maintain traffic.

Earthwork shall be constructed in accordance with the requirements of Section 203.

The Contractor shall maintain the detour for the entire period that it is open to traffic. Any distress that affects the ride, safety or serviceability of the detour roadway shall be corrected immediately at the Contractor’s expense as directed by the Engineer.

The Contractor shall provide smooth pavement transitions between new and existing roadways.

Transverse joints between new and existing pavement shall be constructed with Hot Mix Asphalt.

Grade differences shall not exceed 4% break-over. Longitudinal joints which have a vertical drop-off of one inch or greater shall be tapered with Hot Mix Asphalt. Tapers shall be 8 horizontal to 1 vertical or flatter.

METHOD OF MEASUREMENT

Detour Pavement will be measured by the square yard of hot mix asphalt placed in the detour.

BASIS OF PAYMENT

The accepted quantities will be paid for at the contract unit price for each of the pay items listed below that appears in the bid schedule.

Pay Item Pay Unit Detour Pavement Square Yard

(18)

Embankment used in the detour that will become part of the ultimate roadway embankment will be measured and paid for in accordance with Section 203. Placement of other embankment required for the detour and removal of excess embankment when the detour is removed will not be paid for separately, but shall be included in the price of detour pavement.

All work necessary and incidental to the construction, maintenance, and removal of the detour pavement, including grading, temporary drainage facilities, temporary embankment material, asphalt, and planing will not be measured and paid for separately but shall be included in the work.

(19)

TYPE 2 (SECTION I-B) CURB & GUTTER PGL

VARIES - SEE ROADWAY PLANS VARIES - SEE ROADWAY PLANS

LANE VARIES MEDIAN

LANE VARIES 2.5'

EOP-NE CONTROL LINE EOP-NW CONTROL LINE

ALIGNMENT & PROFILE (TYP.) GEOMETRY SHEETS FOR SEE SPLITTER ISLAND

TYPE 2 (SECTION II-B) CURB & GUTTER (SPECIAL)

FENCE

MINOR RETAINING WALL HMA PATCHING 2'

MATCH EXISTING GROUND PROP ROW

12'

EASEMENT TEMP CONST.

5' 8'

TYPE 2 (SECTION II-M) CURB & GUTTER CONCRETE TRUCK APRON

8' 4.17 2.83' PROP ROW

10'

VARIES

10'

(TYP) 1' EASEMENT

TEMP CONST.

8' VARIES 2.5'

PROP ROW

50' 15'

TYPE 2 (SECTION II-B) CURB & GUTTER

EXISTING ROW

TYPE 2 (SECTION II-B) CURB & GUTTER

EXISTING ROW

PGL

30' PROP ROW

10' (TYP)

1'

42'

6' 9.5' 2.5'

24'

12'

6' 12'

24'

12' 6' 2.5' 9.5' 6'

6 INCH ABC (CLASS 6) (TYP) CONCRETE PAVEMENT (8.5 INCH) ON 1'

CONCRETE SIDEWALK (6 INCH)

TYPE 2 (SECTION II-B) CURB AND GUTTER

1' 1'

CONCRETE SIDEWALK (6 INCH)

3"2.5"2"16"

16 INCH ABC (CLASS 6) (75) (PG 64-22) ON 5.5 INCH HMA (GRADING S)

(75) (PG 64-28) ON 2 INCH HMA (GRADING S)

VINE & SHIELDS TYPICAL SECTIONS

CL SHIELDS ST

VARIES% VARIES%

STA. 10+46.01 TO STA. 11+58.32 SHIELDS ST

WALK WALK 8' MAX

0' MIN

4:1 4:1

PARK STRIP WALK

4:1 4:1

LANE

LANE PARK STRIP WALK

PARK STRIP WALK

4:1 4:1

UTILITY EASEMENT

STA. 11+58.32 TO STA. 16+18.93 SHIELDS ST

LANE BIKE

2%

*

STA. 12+87.33 TO STA. 16+10.12

* 8' TEMP CONST. EASEMENT FROM

MEDIAN PAINTED DETAILS SEE MEDIAN

SEE LANDSCAPE PLANS FOR MEDIAN AND GRADING SURFACE TREATEMENTS NOTE:

STA. 10+68.70 TO STA. 11+58.32

CL SHIELDS ST

2% MAX 2% MAX

2% MAX

HMA LIFT DETAIL

HMA (GRADING S)(75)(PG 64-22)

ABC (CLASS 6)

HMA (GRADING S)(75)(PG 64-28)

No Revisions: STU M455-108

Init.

Comments Date:

Sheet Revisions As Constructed

6/5/2015 Print Date:

Horiz. Scale: 1:10 Vert. Scale: As Noted

Project No./Code

File Name:

2:49AMpw:\\ABQPWINT01.wilsonco.com:Wilson_Projects\Documents\8100-TRN\CDOT\13-100-310-00_Vine_Shields_Intersection\00000\Design\Drawings\18877_RDWY_TYPICALSECTIONS.dgn

18877_RDWY_TYPICAL SECTIONS.dgn

LHN Region 4

EXHIBIT 4 - REVISED DRAWINGS

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APPROXIMATE QUANTITIES SUMMARY OF

Init.

Comments Date:

Project No./Code

File Name:

:11AMpw:\\ABQPWINT01.wilsonco.com:Wilson_Projects\Documents\8100-TRN\CDOT\13-100-310-00_Vine_Shields_Intersection\00000\Design\Drawings\Tabs\18877_SOAQ.dgn

18877_SOAQ.dgn

LHN Region 4

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SUMMARY OF

APPROXIMATE QUANTITIES

Init.

Comments Date:

Project No./Code

File Name:

23:24AMpw:\\ABQPWINT01.wilsonco.com:Wilson_Projects\Documents\8100-TRN\CDOT\13-100-310-00_Vine_Shields_Intersection\00000\Design\Drawings\Tabs\18877_SOAQ.dgn

18877_SOAQ.dgn

LHN Region 4

(22)

VINE & SHIELDS TABULATION OF SURFACING

Init.

Comments Date:

Project No./Code

File Name:

7:14AMpw:\\ABQPWINT01.wilsonco.com:Wilson_Projects\Documents\8100-TRN\CDOT\13-100-310-00_Vine_Shields_Intersection\00000\Design\Drawings\Tabs\18877_RoadwayTabSheets.dgn

18877_Roadway Tab Sheets.dgn

LHN Region 4

(23)

VINE & SHIELDS ROADWAY ITEMS 1 OF 2

Init.

Comments Date:

Project No./Code

File Name:

LHN Region 4

(24)

VINE & SHIELDS ROADWAY ITEMS 2 OF 2

Init.

Comments Date:

Project No./Code

File Name:

LHN Region 4