IFB1 2027000013 - Addendum No 3.pdf

BID # IFB1 2027000013

Addendum No. 03 - Page 1

BID ADDENDA

CHERRY CREEK STATE PARK

NORTH SHOP CREEK TRAIL BRIDGE PROJECT

PROJECT NUMBER CC2501T11

BID #: IFB1 PMAA 2027000013

Colorado Division of Parks and Wildlife

Bid Addendum No.: 03 Bid Addendum Date: 09/29/2026

The Plans and Specifications for the above referenced project shall be changed as stated hereafter and the BIDDER shall reflect these changes in their bid. No additional payment above the proposal price will be made for these changes. The BIDDER shall make these changes:

Questions & Answers:

Attached

Bid Schedule:

Remove Bid Item 19. Drilled Shafts (24” Diameter) < 5’ in Depth Rename Bid Item 20. Drilled Shafts (24” Diameter) Add Bid Item 31. Tree Removal Add Bid Item 32. Crusher Fines Trail (6’ wide, 6” depth) – WEST Add Bid Item 33. Crusher Fines Trail (6’ wide, 6” depth) – EAST Replace: Measurement & Payment

Specifications:

Replace: Revision of Section 106 Environmental Product Declarations with attached

Appendices:

Appendix J – Geotechnical Report

End of Addendum #03

Addendum No. 03 - Page 1

NORTH SHOP CREEK TRAIL BRIDGE PROJECT

PROJECT NUMBER CC2501T11

QUESTIONS & CLARIFICATION REQUESTS

Contractor Email dated 09/22/2026:

I’m reviewing the drilled shaft quantities for the North Connector Bridge and wanted to confirm the intended basis for Bid Items 19 and 20.

The bid schedule currently shows:

• Item 19 – Drilled Shafts (24" Diameter) ≤ 5' in Depth: 192 LF

• Item 20 – Drilled Shafts (24" Diameter) > 5' in Depth: 192 LF

However, Sheet S-5 shows an estimated Item 503 pay length of 48 LF at each abutment. With two drilled shafts shown at each abutment, that appears to correspond to approximately 24 LF per shaft, or 96 LF total drilled shaft length for the project.

Could you please clarify:

1. Whether the 192 LF quantities shown for Items 19 and 20 are correct All four shafts for the project will be deeper than 5-ft; there will be no shafts that are less than 5-ft in depth. Bid Item 19. will be removed and Bid Item 20 modified to remove reference to 5’ in Depth.

2. How the ≤ 5' and > 5' bid items are intended to be measured/applied Per response to 1., all reference to 5’ has been removed. Bid Item 20 Drilled Shafts will be measured/applied per LF. The estimated total length of shaft for bidding purposes is 192 LF. Per Drilled Shaft Note 2/Dwg No S-1, this was calculated using an estimated depth to bedrock at the bridge location of 40-ft plus the minimum embedment of 8-ft shown on "Drilled Shaft Elevation"/Dwg No S-5 for a total length per shaft of 48 LF. There are 4 shafts on the project, so the total quantity for bid is 4x48 = 192 LF.

3. Whether the 48 LF estimated pay length shown on S-5 is intended to represent the total drilled shaft footage at each abutment.

The design team was unable to access the actual shaft locations for drilling during the design phase. Bedrock Sounding shall be performed by the Contractor to verify the actual bedrock depth prior to shaft construction. See Drilled Shaft Notes 1&2/Dwg No S-1, Bedrock Sounding Notes, Dwg No S-5, and the project special provisions.

Addendum No. 03 - Page 2

Contractor Email dated 09/24/2026:

1. Project Schedule and Substantial Completion The Notice to Proceed is anticipated for 11/12/26, with Substantial Completion scheduled for 05/31/27.

Given the long lead times associated with bridge procurement, engineering design, shop drawing approvals, and fabrication, please clarify how the Substantial Completion date of 05/31/27 was evaluated and determined to be achievable.

The substantial completion schedule is driven by the limitation of the grant funding. It is anticipated that contractors will work with suppliers on lead times that can meet the required substantial completion date for the project.

2. EPD Requirements The bid schedule provided with the ITB shows material quantities that are below the limits listed in the EPD Requirements Table 106-5.

Please confirm whether EPD documentation will be required for these materials. If EPD documentation is required, please provide a specific list of the materials that will require EPD submittals.

EPD documentation is required for the following materials: Asphalt and Asphalt Mixtures, Cement and Concrete Mixtures, Steel, and Precast Concrete. Table 106-5 and reference to minimum quantities will be removed from the Revision of Section 106 specification and a revised specification will be issued with Addendum 03.

3. Geotechnical Information and Bedrock Sounding We understand that bedrock sounding is required as part of the bid process. However, is there a geotechnical report available for this project?

If a geotechnical report is not available, please clarify how the Owner intends to address any impacts to the project schedule and contract time if the bedrock sounding results require redesign or modifications to the proposed work.

A geotechnical investigation was completed as part of this project and a report is available and will be provided with Addendum J.

4. Existing Structure Remnants Are there any remnants of the previous structure, such as existing abutments, foundations, piles, or other structural elements, remaining in place that will need to be removed or addressed as part of construction of the new bridge?

If existing abutments, piles, or other remnants of the previous structure are encountered and require removal, please clarify how this work will be paid for under the contract.

Addendum No. 03 - Page 3

The previous structure was a very small wooden bridge with no formal abutments, foundations, piles, or other structural elements. The wooden bridge washed away years ago and there are no remaining remnants of the previous structure that will need to be removed or addressed as part of this project.

5. Drilled Shaft Quantities Design Sheet S-5 indicates drilled shaft quantities of 48 LF at Abutment 1 and 48 LF at Abutment 2. Please clarify the quantities shown for Bid Items 18 and 19.

The bid schedule indicates a quantity of 192 LF for Bid Item 18 and 192 LF for Bid Item 19, for a total of 384 LF of drilled shafts.

Please confirm the intended quantities and distribution of drilled shafts between the two abutments, as these quantities do not appear to correspond with the quantities shown on Design Sheet S-5.

All four shafts on this project will be deeper than 5-ft; we will not have any shafts that are less than 5-ft in depth.

The estimated total length of shaft for bidding purposes is 192 LF. Per Drilled Shaft Note 2/Dwg No S-1, this was calculated using an estimated depth to bedrock at the bridge location of 40-ft plus the minimum embedment of 8-ft shown on "Drilled Shaft Elevation"/Dwg No S-5 for a total length per shaft of 48 LF. There are 4 shafts on the project, so the total quantity for bid is 4x48 =

192 LF.

The design team was unable to access the actual shaft locations for drilling during the design phase. Bedrock Sounding shall be performed by the Contractor to verify the actual bedrock depth prior to shaft construction. See Drilled Shaft Notes 1&2/Dwg No S-1, Bedrock Sounding Notes, Dwg No S-5, and the project special provisions.

REVISED BID SCHEDULE

NORTH SHOP CREEK TRAIL BRIDGE

ADDENDUM #03

DEPARTMENT OF NATURAL RESOURCES

STATE OF COLORADO

Proposes to furnish all labor, equipment, materials, and incidentals needed to complete the Cherry Creek State Park North Shop Creek Trail Bridge Project. The work shall be completed in 200 calendar days from the date of the Notice to Proceed. We have read and made, the “Instructions to Bidders”, the “General Conditions for Capital Construction”, the Written Specifications, and the Construction Drawings part of this bid.

Technical Specifications related to construction materials and methods for work embraced under this Contract shall consist of references to, but not limited to, the Colorado Department of Transportation Most Current Standard Specifications for Roads and Bridge Construction. Special attention should be given to these references and revisions noted within.

UNITS: LF= linear foot, SF= square foot, SFF= square face foot, LS= lump sum, SY= square yard, CY= cubic yard, TON= tons, AC= acres, EA= each, HR= hour

Service Disabled Veteran Owned Small Business Statement (SDVOSB): The undersigned bidder shall certify by checking below that the corporation, partnership, or sole proprietorship IS or IS NOT claiming a 5% bid preference in accordance with C.R.S. 24-103-211. SDVOSB certification must be included with your bid.

Is: Is Not:

Colorado Labor: The undersigned bidder shall certify by indicating the percentage of Colorado labor of the total workforce to be utilized for this project in accordance with C.R.S. 8-17-101.

Colorado Labor shall be employed to perform at least 80% of the work on a public works project greater than $500,000.00. A written justification for not meeting this percentage must be included with your bid.

% of Colorado Labor: ___________

Addendum Inclusion Statement: The undersigned bidder shall certify by listing below that all Addendums have been considered and included as part of the Contractor’s proposal. The Addendum numbers that the Contractor has included as part of his proposal shall be listed in the space provided.

Addendum(s):

Quantity Unit Unit Cost Total Item Cost

01. Mobilization 1.0 LS $ $

02. Clearing & Grubbing 1.9 AC $ $

03. Traffice Control 1.0 LS $ $

04. Water Control 1.0 LS $ $

05. Construction Surveying 1.0 LS $ $

06. Concrete Washout Structure 1.0 EA $ $

07. Erosion Log 1,500.0 LF $ $

08. Vehicle Tracking Pad 2.0 EA $ $

09. Fence (Plastic) 800.0 LF $ $

10. Fence (Rob & T-Post) 1,800.0 LF $ $

11. Unclassified Excavation 190.0 CY $ $

12. Unclassified Excavation, Haul Off Site 740.0 CY $ $

13. Muck Excavation 150.0 CY $ $

14. Topsoil 1,540.0 CY $ $

15. Type H Void-Filled Riprap 530.0 CY $ $

16. Structural Excavation 37.0 CY $ $

17. Structural Backfill (Class 1) 66.0 CY $ $

18. Bedrock Sounding 2.0 EA $ $

20. Drilled Shafts 192.0 LF $ $

21. Concrete Sealer 72.0 SY $ $

22. Concrete (Class DF) 30.0 CY $ $

23. Reinforcing Steel 2,970.0 LB $ $

24. Reinforcing Steel (Epoxy Coated) 26.0 LB $ $

25. Bridge Girder & Deck Unit 1.0 EA $ $

26. Removal of Sidewalk 23.0 SY $ $

27. Concrete Sidewalk 23.0 SY $ $

28. Aggregate Base Course (Class 6) 160.0 SY $ $

29. Mulching (Hydromulch) 1.9 AC $ $

30. Seeding (Uppland) 0.9 AC $ $

31. Tree Removal 5.0 EA $ $

32. Crusher Fines Trail (6' wide, 6" depth) - WEST 200.0 LF $ $

33. Crusher Fines Trail (6' wide, 6" depth) - EAST 400.0 LF $ $

Base Bid Items:

Base Bid: Furnish and install all materials and labor for the completion of the Base Bid Improvements per the Construction Drawings and Specifications.

IFB1 PMAA 2027000013

Quantity Unit Unit Cost Total Item CostBase Bid Items:

Base Bid AMOUNT: $

Base Bid AMOUNT: (PLEASE WRITE OUT BID AMOUNT)

DOLLARS

IFB1 PMAA 2027000013

(A Corporate Signature Block)

Company Name

A Corporation

Date , 2026

Colorado VSS Vendor ID# (if available) _____________________________________

By President Attested to by Secretary

(A Partnership Signature Block)

A limited partnership of , general partner;

doing business as (dba)

Company Name

Colorado VSS Vendor ID# (if available) _____________________________________ by General Partner

(A Sole Proprietorship Signature Block)

A Sole Proprietorship of (dba)

Colorado VSS Vendor ID# (if available) _____________________________________ by Owner

IFB1 PMAA 2027000013 1

REVISED MEASUREMENT AND PAYMENT

NORTH SHOP CREEK TRAIL BRIDGE

The contractor shall use the following measurement and payment procedures for items listed on the bid tab for this project. This section provides the measurement and payment method for items of work under this contract.

1. The work performed under this Agreement shall be paid for on a unit price basis at the rates for the respective items on the Bid Schedule. The quantities provided on the Bid Schedule are only estimates of the actual quantities of the work to be performed, and are only included for purposes of making the award. Owner reserves the right to alter and/or eliminate any item of work. Modifications, if any, will be made by Contract Modification.

2. The total unit or lump sum prices for the Contract cover all work required by the Contract Documents, including the furnishing of all materials and equipment required to be incorporated in and from a permanent part of the Work; tools, equipment, supplies, transportation, facilities, labor, superintendence and services required to perform the Work;

bonds, insurance and submittals; and the assumption of all obligations, duties and responsibilities necessary to the successful completion of the Contractor, except as provided for otherwise in this section of the Specifications or elsewhere in the Contract Documents.

3. Lump sum bid items may list engineer’s estimate of quantities. The contractor will be responsible for verification of the quantities.

4. All work not specifically set forth as a pay item in the Bid Schedule shall be considered a subsidiary obligation of Contractor and all costs in connection therewith shall be included in the bid prices.

5. Expect where otherwise specified, the unit or lump-sum price bid for each item of work which involved excavation, backfilling or trenching shall include all costs for such work. No direct payment shall be made for excavation or trenching.

Bid Item No. 1: Mobilization

a. Measurement No separate measurement for payment will be made for any labor, equipment, and materials required for this item. The lump sum price will include all of the CONTRACTOR's costs. This BID item includes, but is not limited to:

1. Furnishing, installing and removing temporary fencing and construction markers around PROJECT work areas and any other fencing/security items as deemed necessary by the CONTRACTOR

2. Establishing and removing the CONTRACTOR's offices, buildings, and other necessary facilities

3. Obtaining, complying with, and transferring permits

4. Providing environmental controls for the life of the PROJECT

5. Providing required bonds and insurance

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6. Preparing and maintaining the PROJECT schedule

7. Delivering and removing the CONTRACTOR's equipment, supplies, and excess materials, and cleaning up the site

8. Restoring the PROJECT site to pre-project or final grades and conditions

9. Preparing and securing approvals of submittals

10. Preparing record drawings

11. Preparing and providing copies of stormwater and other required reports

12. Providing all other related and necessary labor, equipment, and materials to complete the WORK

b. Payment

Payment will be made in two installments: the first 60% will be paid on the first month’s pay estimate, and the remaining 40% after the final cleanup has been completed and approved

Bid Item Pay Unit

Mobilization LS

Bid Item No. 2: Clearing and Grubbing

The measurement for payment for this item will be the actual number of acres of clearing and grubbing completed in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. Measurement will be based upon scaled dimensions in acres of clearing and grubbing, as defined on the DRAWINGS and SPECIFICATIONS. No payment will be made for clearing and grubbing outside of the limits of construction shown on the DRAWINGS and SPECIFICATIONS or for WORK required to repair damage done by the CONTRACTOR's operations. The unit price will include all of the CONTRACTOR's costs. This BID item includes, but is not limited to:

1. Completing the clearing and grubbing

2. Disposing of materials off site in accordance with the

DRAWINGS and SPECIFICATIONS

3. Providing all other related and necessary labor, equipment, and materials to complete the WORK

b. Payment

Payment will be based on the percentage of completed and accepted WORK.

Clearing and Grubbing AC

Bid Item No. 3: Traffic Control

No separate measurement for payment will be made for any labor, equipment, and materials required for this item. The lump sum price will include all of the CONTRACTOR's costs. This BID item includes, but is not limited to:

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1. Preparing, implementing, adjusting as necessary, and maintaining the CONTRACTOR's approved Traffic Control Plan

2. Updating and submitting traffic control plans, as necessary, according to city, county, and other applicable regulations

3. Preparing, implementing, maintaining, and adjusting, as necessary, pedestrian controls

4. Providing all other related and necessary labor, equipment, pavement markings, and materials to complete the WORK

b. Payment

One third of the lump sum price for this item will be paid after twenty-five (25) percent of the original CONTRACT amount has been earned, the second third will be paid after fifty

(50) percent of the original CONTRACT amount has been earned, and the final third upon final acceptance of the PROJECT.

Traffic Control LS

Bid Item No. 4: Water Control

No separate measurement for payment will be made for any labor, equipment, and materials required for this item. The lump sum price will include all of the CONTRACTOR's costs. This BID item includes, but is not limited to:

1. Preparing and submitting water control plan for review

2. Implementing measures to control surface water and groundwater not paid for under Bid Item ESC-07-001, Temporary Diversion Measure or ESC-16-001.

Temporary Slope Drain

3. Providing temporary power and sound proofing, as required

4. Evaluating, designing, constructing, maintaining, replacing, and monitoring dewatering measures

5. Modifying the approved and implemented water control plan as necessary

6. Furnishing and installing all materials, sediment basins, diversion measures, slope drains, check dams, pumps, dewater bags, earth embankments, sheet pile, wells, stream crossings or any other material necessary for water control

7. Obtaining all required permits

8. Monitoring, sampling and analysis, and preparing water quality reports, if required

9. Protecting WORK from groundwater, base flows, and storm events

10. Providing all other related and necessary labor, equipment, and materials to complete the WORK

b. Payment

One third of the lump sum price for this item will be paid after twenty-five (25) percent of the original CONTRACT amount has been earned, the second third after fifty (50) percent of the original CONTRACT amount has been earned, and the final third will be paid upon final acceptance of the PROJECT.

IFB1 PMAA 2027000013 4

Water Control LS

Bid Item No. 5: Construction Surveying

No separate measurement for payment will be made for any labor, equipment, and materials required for this item. The lump sum price will include all of the CONTRACTOR's costs. This BID item includes, but is not limited to:

1. Staking horizontal and vertical alignments

2. Providing cut sheets to the OWNER or OWNER’s representative

3. Providing replacement stakes

4. Locating existing utilities

5. Staking overlot grading

6. Setting subgrade elevations and offsets

7. Setting temporary control points

8. Re-establishing land monuments

9. Finishing grades and structure elevations by a Professional Licensed Surveyor, as required, for record or as-built DRAWINGS

10. Finishing grades and elevations by a Professional Licensed Surveyor, as required, for Pond Volume Certification

11. Providing all other related and necessary labor, equipment, and materials to complete the WORK

a. Payment

Payment will be based on the percentage of completed and accepted WORK.

Construction Surveying LS

Bid Item No. 6: Concrete Washout Structure

The measurement for payment for this item will be per each concrete washout area placed in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. The unit price will include all of the CONTRACTOR's costs.

This BID item includes, but is not limited to:

1. Excavating pit, constructing berm, or utilizing an approved pan/tub concrete washout service

2. Providing and installing vehicle tracking control (crushed rock and riprap)

3. Providing and installing construction fence and sign

4. Removing concrete washout and concrete material, upon approval

5. Restoring area to pre-project or finished grades and conditions

6. Providing all other related and necessary labor, equipment, and materials to complete the WORK

Payment will be based on units completed and accepted.

IFB1 PMAA 2027000013 5

Concrete Washout Structure EA

Bid Item No. 7: Erosion Log

The measurement for payment for this item will be the actual number of linear feet of sediment control log placed in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. The unit price will include all of the CONTRACTOR's costs. This BID item includes, but is not limited to:

1. Providing and installing sediment control log and stakes

2. Removing, upon approval

3. Providing all other related and necessary labor, equipment, and materials to complete the WORK

Erosion Log LF

Bid Item No. 8: Vehicle Tracking Pad

The measurement for payment for this item will be based on the actual number of square yards of vehicle tracking control placed in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. The unit price will include all of the CONTRACTOR's costs. This BID item includes, but is not limited to:

1. Providing and placing geotextile fabric, construction mat, TRM, crushed rock, and riprap, as shown on the DRAWINGS

2. Excavating and removing material

3. Removing vehicle tracking control, upon approval

4. Restoring area to pre-project or final grades and conditions, including revegetation

5. Providing and installing metal rack and sediment trap as shown on the

DRAWINGS

6. Providing and installing power washing equipment

7. Power washing the equipment and vehicles

8. Providing all other related and necessary labor, equipment, and materials to complete the WORK

b. Payment

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Vehicle Tracking Pad

EA

Bid Item No. 9: Fence (Plastic)

Bid Item No. 10: Fence (Rope and T-post)

a. Measurement The measurement for payment for this item will be the actual number of linear feet of fence placed in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. The unit price will include all of CONTRACTOR’s costs. This BID item includes, but is not limited to:

1. Furnishing and installing all materials, including posts, rails, wire, fabric, concrete, and nails as shown on the DRAWINGS

2. Excavating, filling, and compacting

3. Providing all other related and necessary labor, equipment, and materials to complete the WORK

Fence (Plastic) LF Fence (Rope with T-post) LF

Bid Item No. 11: Unclassified Excavation

Bid Item No. 12: Unclassified Excavation, Haul off site (408 Volume Balance)

a. Measurement The measurement for payment for this item will be the actual number of cubic yards excavated and used for fill or hauled from the site, measured and computed by the average end area method or grid method (difference between existing and finished grade) in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. No measurement of this item will be made unless changes to the CONTRACT DOCUMENTS are made, in which case the OWNER will perform measurement of the modified volume. The quantity is based on the neat lines shown on the DRAWINGS and does not account for shrinkage or swell, and does not include structural excavation or pre-excavation required to install other BID items. The unit price will include all of the CONTRACTOR's costs. This BID item includes, but is not limited to:

1. Excavating, transporting, stockpiling with BMPs, and hauling excavated material to fill areas within PROJECT, or properly disposing off site

2. Placing, reworking, and compacting fill material

3. Cross hauling material

4. Moistening, drying, and reconditioning material, as necessary, to meet moisture-density requirements

5. Surface roughening and terracing BMPs as shown on the DRAWINGS

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6. Removing and hauling deleterious materials

7. Providing all other related and necessary labor, equipment, and materials to complete the WORK

b. Payment

Payment will be based on units completed and accepted.

Bid Item Pay Unit Unclassified Excavation CY Unclassified Excavation, Haul off site CY

Bid Item No. 13 : Muck Excavation

The measurement for payment for this item will be the actual number of cubic yards of material removed beyond what is required for the construction of the improvements in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. Measurement will be based upon actual field measurements and calculated volumes (no allowance for shrinkage or swell). The unit price will include all of the CONTRACTOR’s costs. This BID item will be only at the direction of the OWNER. This BID item includes, but is not limited to:

a. Excavating, hauling, and disposing material off site

b. Replacing with approved material

c. Placing approved geotextile

d. Providing all other related and necessary labor, equipment, and materials to complete the WORK

Muck Excavation

CY

Bid Item No. 14: Topsoil

The measurement for payment for this item will be the actual number of cubic yards of topsoil excavated, properly stockpiled, and replaced in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. No measurement of this item will be made unless changes to the CONTRACT DOCUMENTS are made, in which case the OWNER will perform measurement of the modified volume. The quantity is based on the neat lines shown on the DRAWINGS and SPECIFICATIONS, and does not account for shrinkage or swell. No additional payment will be made for areas disturbed outside of construction limits or areas within construction limits that are not identified on the DRAWINGS and SPECIFICATIONS to be disturbed, unless approved by the OWNER. The unit price will include all of the CONTRACTOR's costs. This BID item includes, but is not limited to:

1. Excavating topsoil and vegetation to required depths

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2. Stockpiling and segregating upland and wetland soil in an upland area

3. Removing and properly disposing of wetland topsoil

4. Protecting stockpiles from erosion

5. Preparing subgrade

6. Replacing and moistening of topsoil in the designated areas to required depths

7. Providing all other related and necessary labor, equipment, and materials required to complete the WORK

Topsoil CY

Bid Item No. 15: Type H Void-Filled Riprap (Bridge Abutment Protection)

The measurement for payment for this item will be the actual number of cubic yards of void-filled river rock riprap with bedding placed in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. No measurement of this item will be made unless changes to the CONTRACT DOCUMENTS are made, in which case the OWNER will perform measurement of the modified volume. Measurement does not include the thickness of the bedding. The unit price will include all of the CONTRACTOR's costs. This BID item includes, but is not limited to:

1. Furnishing, transporting, mixing, and placing all riprap, and material for filling voids

2. Excavating, backfilling, and compacting/plating

3. Removing and disposing excavated material and debris

4. Providing compacted fill required to mix with and bury riprap

5. Providing all other related and necessary labor, equipment, and materials to complete the WORK

Type H Void-Filed Riprap (Bridge Abutment Protection)

CY

Bid Item No. 16: Structure Excavation

Bid Item No. 17: Structure Backfill (Class 1)

a. Measurement The measurement for payment for this item will be cubic yard based on BID item and in accordance with the DRAWINGS and SPECIFICATIONS. No separate measurement for payment will be made for any labor, equipment, and materials required for this item. The

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unit price will include all of the CONTRACTOR's costs, which are not specifically measured and paid for under other BID items. This BID item includes, but is not limited to:

1. Excavating to structure subgrade, transporting, and hauling excavated material to fill areas within PROJECT, or properly disposing off site

2. Pumping, bailing, draining, and incidentals required to maintain groundwater levels required for proper execution of the WORK

3. Cross hauling material

4. Importing, placing, reworking, and compacting Structure Backfill material

5. Moistening, drying, and reconditioning material, as necessary, to meet moisture-density requirements

6. Removing and hauling deleterious materials

7. Providing all other related and necessary labor, equipment, and materials to complete the WORK

Structure Excavation CY

Structure Backfill (Class 1) CY

Bid Item No. 18: Bedrock Sounding

The measurement for payment for this item will be per each bedrock sounding performed in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. The unit price will include all of the CONTRACTOR's costs.

This BID item includes, but is not limited to:

1. Providing on-site observation by a qualified geotechnical engineer

2. Mobilizing drilling equipment of sufficient size to drill to at least 20-feet below anticipated bedrock elevation as described in the DRAWINGS

3. Drilling, sampling, and logging bedrock elevation.

4. Providing test hole locations, ground elevations, and bedrock elevations to the

OWNER for review.

5. Backfilling test holes after drilling

6. Properly disposing of excavated material

7. Providing all other related and necessary labor, equipment, and materials to complete the WORK

Bedrock Sounding EA

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Bid Item No. 20: Drilled Shafts (24” Diameter)

The measurement for payment for this item will be the lineal foot from the top of shaft elevation shown on the DRAWINGS to the bottom of the hole as drilled. No separate measurement for payment will be made for any labor, equipment, and materials required for this item. The unit price will include all of the CONTRACTOR's costs, which are not specifically measured and paid for under other BID items. This BID item includes, but is not limited to:

1. Preparing and submitting required drilling submittals to the ENGINEER for review, including personnel qualifications, drilled shaft installation plan, and drilling logs

2. Providing on-site observation by a qualified geotechnical engineer

3. Excavating holes to the required bedrock embedment shown in the DRAWINGS and protecting holes prior before and after concrete placement

4. Constructing shear rings within the zone of bedrock embedment

5. Cleaning and inspecting the bottom of excavations

6. Furnishing, placing, and removing temporarily casing, pumping, and proper disposal of groundwater as required by the DRAWING and SPECIFICATIONS

7. Furnishing, tying, splicing, placing, and securing shaft reinforcement, including reinforcement that projects beyond the top of the shaft

8. Furnishing, transporting, and placing concrete in accordance with the

SPECIFCIATIONS

9. Forming tops of shafts as necessary to avoid mushrooming

10. Providing all other related and necessary labor, equipment, and materials to complete the WORK

b. Payment

Accepted quantities for drilled shafts will be paid for at the Contract unit price per lineal foot, except for the price adjustments allowed below:

Payment will be made under:

Drilled Shafts (24” Diameter) LF

Bid Item No. 21: Concrete Sealer

The measurement for payment for this item will be the actual number of square yards of concrete sealer applied in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. The unit price will include all of the CONTRACTOR’s costs. This BID item includes, but is not limited to:

1. Furnishing penetrating sealer meeting with requirements of the SPECIFICATONS and providing certificates of compliance

2. Cleaning and preparing the concrete deck and approach slabs in accordance with the DRAWINGS and SPECIFICATIONS

3. Applying the sealer in accordance with the manufacturer’s instructions and the requirements of the DRAWINGS and SPECIFICATIONS

4. Protecting the sealer during the curing period and touch-up applications as

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required.

5. Removing and properly disposing all waste materials

6. Providing all other related and necessary labor, equipment, and materials to complete the WORK

Concrete Sealer SY

Bid Item No. 22: Concrete (Class DF)

No measurement for payment will be made for this item. Payment for this item will be cubic yard based on BID quantity and in accordance with the DRAWINGS and SPECIFICATIONS. No separate measurement for payment will be made for any labor, equipment, and materials required for this item. The unit price will include all of the CONTRACTOR’s costs, which are not specifically measured and paid for under other BID items. This BID item includes, but is not limited to:

1. Preparing and submitting concrete mix designs meeting the requirements of the DRAWINGS and SPECIFICATIONS

2. Furnishing, installing, and protecting void-form materials meeting the requirements of the DRAWINGS and SPECIFICATIONS

3. Erecting, maintaining, and removing falsework

4. Preparing concrete samples for required testing

5. Furnishing, placing, finishing, and protecting concrete

6. Providing protection for cold weather concreting as necessary

7. Cleaning and preparing construction joints

8. Furnishing, installing, and finishing expansion joints, including application of approved sealant

9. Properly curing concrete in accordance with the SPECIFICATIONS

10. Repairing and patching concrete defects as approved by the OWNER

11. Providing finish classes in accordance with the DRAWINGS and

SPECIFICATIONS

12. Providing all other related and necessary labor, equipment, and materials to complete the WORK Payment

Concrete Class DF CY

Bid Item No. 23: Reinforcing Steel

Bid Item No. 24: Reinforcing Steel (Epoxy Coated)

IFB1 PMAA 2027000013 12

No measurement for payment will be made for this item. Payment for this item will be by weight in pounds based on BID quantity and in accordance with the DRAWINGS and SPECIFICATIONS. No separate measurement for payment will be made for any labor, equipment, and materials required for this item. The unit price will include all of the CONTRACTOR’s costs, which are not specifically measured and paid for under other BID items. This BID item includes, but is not limited to:

1. Providing reinforcement shop drawings for review

2. Furnishing, placing, tying, and protecting reinforcement in accordance with the

DRAWINGS and SPECIFICATIONS

3. Comply with Buy America Build America requirements and furnish certificates of compliance to the OWNER

4. Furnishing and installing slab bolsters and chairs as necessary to maintain the required clear cover

5. Cleaning, wetting, and heating (if necessary) reinforcement in preparation for concrete placement

6. Providing all other related and necessary labor, equipment, and materials to complete the WORK

Reinforcing Steel LB

Reinforcing Steel (Epoxy Coated) LB

Bid Item No. 25: Bridge Girder and Deck Unit

No separate measurement for payment will be made for any labor, equipment, and materials required for this item. The lump sum price will include all of the CONTRACTOR's costs. This BID item includes, but is not limited to:

1. Structural design of the bridge girder and deck unit in accordance with the requirements of the DRAWINGS and SPECIFICATIONS

2. Furnishing complete fabrication drawings and calculations to the OWNER for review

3. Addressing review comments and revising the fabrication drawings and calculations as necessary

4. Comply with Buy America Build America requirements and furnish certificates of compliance to the OWNER

5. Preparing submittals and executing safety critical work plans in accordance with the SPECIFICATIONS

6. Fabricating, transporting, splicing, and erecting the bridge girder and deck unit

7. Sandblasting weathering steel elements as described in the SPECIFICATIONS

8. Shop fabrication quality control procedures and testing as described in the

SPECIFICATIONS

9. Furnishing and installing stay-in-place deck forms

IFB1 PMAA 2027000013 13

10. Fabricating, transporting, and installing all necessary hardware, anchor bolts, bearing plates, and cover plates

11. Fabricating, transporting, and erecting pedestrian railing on the wingwalls, including all necessary hardware

12. Painting handrails in accordance with the DRAWINGS and SPECIFICATIONS

13. Addressing and repairing elements damaged both before and after erection as approved by the OWNER.

14. Providing all other related and necessary labor, equipment, and materials to complete the WORK

Bridge Girder and Deck Unit L S

Bid Item No. 26: Removal of Sidewalk

The measurement for payment for this item will be square yard based on BID item and in accordance with the DRAWINGS and SPECIFICATIONS. No separate measurement for payment will be made for any labor, equipment, and materials required for this item. The unit price will include all of the CONTRACTOR's costs, which are not specifically measured and paid for under other BID items. This BID item includes, but is not limited to:

1. Removing, hauling, and disposing of structures and obstructions including, but not limited to, existing pipe, culverts, inlets, concrete, asphalt, and any structures and obstructions that interfere with the WORK

2. Backfilling and compacting after removal of structures and obstructions

3. Moisture conditioning of suitable backfill material

4. Restoring area, as required

5. Providing all other related and necessary labor, equipment, and materials to complete the WORK

Removal of Sidewalk SY

Bid Item No. 27: Concrete Sidewalk

The measurement for payment for this item will be the actual number of square yards of concrete placed in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. The unit price will include all of the CONTRACTOR’s costs. This BID item includes, but is not limited to:

IFB1 PMAA 2027000013 14

1. Sawcutting, removing, and disposing all damaged and broken concrete, gravel, or other surface debris

2. Furnishing, forming and placing concrete, including coloring and fiber-mesh and materials not otherwise provided for elsewhere in the DRAWINGS and

SPECIFICATIONS

3. Furnishing and installing expansion joints

4. Furnishing and applying the curing compounds

5. Furnishing and placing reinforcing steel

6. Furnishing, forming, and placing concrete thickened edge

Concrete Sidewalk SY

Bid Item No. 28: Aggregate Base Course (Class 6)

The measurement for payment for this item will be the actual number of square yards of Class 6 aggregate base course placed in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. The unit price will include all of the CONTRACTOR’s costs. This BID item includes, but is not limited to:

1. Furnishing and placing crusher fines to the required thickness and filter fabric

2. Forming and edging, including access ramps

3. Furnishing and compacting all material required for a stable subbase

4. Furnishing and applying soil sterilant

5. Excavating, backfilling and compacting

6. Removing and disposing all excess excavated material and debris

7. Providing all other related and necessary labor, equipment, and materials to complete the WORK

Aggregate Base Course (Class 6) SY

Bid Item No. 29: Mulching (Hydromulch)

The measurement for payment for this item will be the actual number of acres of mulch placed in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. The unit price will include all of the CONTRACTOR’s costs. This BID item includes, but is not limited to:

1. Furnishing, transporting, and placing specified material

2. Crimping

3. Providing all other related and necessary labor, equipment, and materials to complete the WORK

IFB1 PMAA 2027000013 15

Mulching (Hydro mulch) AC

Bid Item No. 30: Seeding (Upland)

Bid Item No. 31: Seeding (Riparian)

a. Measurement The measurement for payment for this item will be the actual number of acres of seeding placed in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. The unit price will include all of the CONTRACTOR's costs.

This BID item includes, but is not limited to:

1. Preparing soil, ripping, tilling and fine grading

2. Furnishing seed

3. Drilling or broadcasting seed

4. Installing temporary fence and barriers as shown on the DRAWINGS

5. Maintaining all seeded areas

6. Providing all other related and necessary labor, equipment, and materials to complete the WORK

Seeding (Upland) AC

Seeding (Riparian) AC

Bid Item No. 31: Tree Removal

The measurement for payment for this item will be the actual number of trees removed and disposed of off park in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. The unit price will include all of the CONTRACTOR’s costs. This BID item includes, but is not limited to:

1.

2.

Tree Removal EA

IFB1 PMAA 2027000013 16

Bid Item No. 32: Crusher Fines Trail (6’ wide, 6” depth) - WEST

Bid Item No. 33: Crusher Fines Trail (6’ wide, 6” depth) - EAST

a. Measurement The measurement for payment for this item will be the actual number of lineal feet of 6’ wide, 6” depth crusher fine trail in accordance with the DRAWINGS and SPECIFICATIONS or as otherwise directed by the OWNER. The unit price will include all of the CONTRACTOR's costs. This BID item includes, but is not limited to:

1. Sub-grade preparation and compaction

2. Purchase, transportation, placement, compaction, and finish grading of crusher fines material, and

3. All other items of work necessary to provide a complete unit in accordance with the construction drawings and technical specifications.

4. Providing all other related and necessary labor, equipment, and materials to complete the WORK

West Crusher Fines Trail LF

East Crusher Fines Trail LF

June 11, 2025

Revision of Section 106 Environmental Product Declarations

Notice

This Standard Special Provision (SSP) revises or modifies CDOT’s Standard Specifications for Road and Bridge Construction. These are the official instructions for its use on CDOT construction projects and have been reviewed, approved, and issued by the Construction Engineering Services Branch. Use as written without change. Do not use modified versions of this SSP on CDOT construction projects. Do not use this Standard Special Provision (SSP) on CDOT projects in a manner other than specified in the instructions without approval by CDOT’s Standards and Specifications Unit. The instructions for use appear below.

Other agencies using the Standard Specifications for Road and Bridge Construction to administer construction projects may use this special provision appropriately and at their own risk.

Instructions for use on CDOT construction projects:

Use this Standard Special Provision on all CDOT Engineering projects with an Engineer's Estimate of $3 million or greater, not including Construction Engineering (CE), Indirect, and Force Account (F/A) item costs. This specification is not intended for use on Local Agency Construction projects or on Emergency projects as defined by §24-33.5-704, C.R.S. and Colorado Fiscal Rule 3-1 § 2.9.

1 June 11, 2025

Section 106 of the Standard Specifications shall include the following:

106.14 Environmental Product Declarations (EPDs). The Buy Clean Colorado (BCCO) Act (C.R.S. 24-92-118) requires the Colorado Department of Transportation (CDOT) to establish the maximum acceptable Global Warming Potential (GWP) limit for each category of eligible materials that are used in the project. The Contractor shall comply with the following requirements and shall meet the established GWP limits.

(a) Definitions.

1. Environmental Product Declaration (EPD). A third-party verified document that summarizes the life cycle assessment (LCA) of a single material and publicly discloses its environmental impacts. EPDs enable comparisons between materials serving the same function but should not be used to compare dissimilar materials (for example, concrete and asphalt). An EPD shall consist of quantified environmental data using predetermined parameters and, where relevant, additional environmental information as defined by the International Organization for Standardization (ISO) (ISO, 2010). The environmental information of an EPD is subdivided into four life cycle stages being the production, construction, use and end-of-life stages. The life cycle stages are divided into modules. An EPD may cover different combinations of modules, in other words, cover different life cycle stages or parts thereof. EPDs covering modules (A1-A3) are referred to as cradle-to-gate EPDs and the associated emissions are often referred to as embodied carbon. Cradle-to-gate EPDs cover the mandatory production stage that includes the following information modules: extraction and upstream production (raw material supply) [A1], transport to factory [A2], and manufacturing [A3] (ISO, 2017). This specification refers to cradle-to-gate EPDs when EPDs are mentioned.

Types of EPDs (Carbon Leadership Forum, 2021)

(1) Facility-specific. An EPD in which the environmental impacts can be attributed to a single manufacturer and manufacturing facility.

(2) Product-specific. An EPD that represents the impacts for a specific product and manufacturer, potentially across multiple facilities.

(3) Supply-chain-specific. An EPD that is product-specific and that uses supply chain–specific data in the LCA to model the impacts of key processes upstream in a product’s supply chain. For example, cement in concrete or mill-specific production data for steel.

2. Global Warming Potential (GWP). A measure of how much energy the emission of 1 ton of a gas will absorb over a given period of time, relative to the emission

2 June 11, 2025 of 1 ton of carbon dioxide (CO₂) (EPA).

3. Greenhouse Gas (GHG). Includes carbon dioxide (CO₂), methane (CH₄), nitrous oxide (N₂O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexafluoride (SF₆), and nitrogen trifluoride (NF₃) (C.R.S. 25-7-140).

4. International Organization for Standardization (ISO). An independent, non-governmental, international standard development organization composed of representatives from the national standards organizations of member countries (ISO Membership Manual).

5. Product Category Rule (PCR). A set of specific rules, requirements and guidelines for developing Type III environmental declarations for one or more product categories (ISO 14025).

6. Product Category. A group of products that can fulfill equivalent functions (ISO

14025).

7. Program Operator (PO). A body or bodies that conduct an EPD program. A program operator can be a company or a group of companies, an industrial sector or trade association, public authorities or agencies, or an independent scientific body or other organization (ISO 14025).

(b) Eligible Material Categories. Individual bid items requiring EPDs are detailed in

Table 106-4. Eligible material categories include the following:

1. Asphalt and Asphalt Mixtures;

2. Cement and Concrete Mixtures;

3. Steel; and

4. Precast Concrete.

(c) EPD Development Requirements. The Contractor shall provide Environmental

Product Declarations (EPDs) for eligible materials per Table 106-4 to be utilized on the project. EPDs shall meet the requirements listed below and as defined by the relevant ISO standards and material-specific Product Category Rules (PCRs) published by the Program Operators (POs) linked below.

1. Asphalt Mixtures:

(1) National Asphalt Pavement Association (NAPA) - PO & PCR Owner www.asphaltpavement.org/programs/napa-programs/emerald-eco-label

Additional CDOT-specific requirements for developing an asphalt mixture EPD:

https://www.asphaltpavement.org/programs/napa-programs/emerald-eco-label

3 June 11, 2025

(2) For the “Mix Name” field, use the same “Supplier Mix ID” that corresponds to the submittal of the mix design for CDOT approval.

(3) For the “Specification Entity” field, enter “CDOT”.

(4) For the “Specification” field, enter mix grading/and or type of asphalt mixture (for example, S, SX, ST, SMA, WMA), followed by the number of gyrations (for example, 75, 100), followed by the binder type of the asphalt mixture (for example, 58-28, 64-22, 76-28). The field should include the following, as an example: SX(100) PG 64-22.

(5) If known, for the “Customer Number [project/contract]” field, enter the project’s contract ID.

(6) Indicate if the plant is stationary or portable.

(7) Asphalt EPDs shall be product- and facility-specific.

2. Cement:

(1) NSF - PO & PCR Owner https://www.nsf.org/nsf-standards/product-category-rules

Additional CDOT-specific requirements for developing a cement EPD:

(2) Cement EPDs shall be product- and facility-specific.

3. Concrete Mixtures:

(1) National Ready Mixed Concrete Association (NRMCA) - PO https://www.nrmca.org/association-resources/sustainability/environmental-product-declarations/

(2) NSF International - PCR Owner https://www.nsf.org/nsf-standards/product-category-rules.

Additional CDOT-specific Requirements for developing a concrete mixture EPD:

(3) EPDs shall explicitly list disaggregated results for the A1, A2, and A3 modules.

(4) For the "Product" field, use the same "Supplier Mix ID" that corresponds to the submittal of the mix design for CDOT approval.

(5) For the "Description" field, enter "CDOT" followed by the concrete class (for example, Class P, B, D, BZ, etc.). Any additional product details, such as compressive strength (PSI), air entrainment (A/E), or the inclusion of fly ash, etc., can be included if applicable. If applicable to the mix design, include “high early” or “optimized” in the description.

(6) Include the address of the plant if not listed elsewhere in the EPD.

(7) Indicate if the plant is stationary or portable.

(8) Supply-chain specific EPDs including cement manufacturer-specific data shall be utilized in the concrete mixture EPD.

(9) Concrete EPDs shall be product- and facility-specific.

https://www.nrmca.org/association-resources/sustainability/environmental-product-declarations/ https://www.nrmca.org/association-resources/sustainability/environmental-product-declarations/

4 June 11, 2025

Additional CDOT-specific requirements for concrete mixture EPD submission to CDOT for Approved Products List (APL) mix design approval:

(10) Provide the specific plant name and location for the concrete supplier.