Bidding Opportunity
**The due date for this bidding opportunity has passed**

Boulder Canyon Trail Wall Repair

Due Date: 07/20/2023 2:00 pm
Bidding Number: BID #7477-23
Bidding Categories: Community Planning and Permitting, Public Works
Pre-bid Date and Time: 07/10/2023 10:30 am
Pre-bid Location:

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Meeting ID: 213 573 670 438 Passcode: 9GyfZ8
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+1 720-400-7859,,943225942# United States, Denver
Phone Conference ID: 943 225 942#

Other Comments:


Boulder County is seeking bids for the Boulder Canyon Trail Wall Repair near the intersection of SH119 and Fourmile Canyon Drive. The Boulder Canyon Trail is supported by a mechanically stabilized earth (MSE) wall. The existing MSE wall is believed to be approximately 25 years old, and the block facing units are in various states of degradation. At the east (downhill) side of the wall, there is a low point in the trail where the wall is in its poorest condition. It is believed that trail drainage over the wall is the primary cause for the advanced deterioration of the wall at this location. Several facing units have completely eroded, exposing the geogrid reinforcing and granular backfill. Portions of the concrete path slab are currently undermined at this location.

The work will mainly consist of replacing the MSE block facing with a reinforced shotcrete facing and concrete work to improve drainage of the trail area.

Potential bidders are encouraged to visit the site located 250 feet west of milepost 39 on CO 119 (Boulder Canyon Drive) near the intersection of Fourmile Canyon Drive.

Due to the emergency nature of this project, the proposer should be prepared to begin construction in Fall of 2023.

2.Optional Pre-Bid Meeting

An Optional Pre-Proposal Meeting will be held on July 10, 2023, at 10:30 a.m., Please click on the link on the cover page or use the call-in number if you wish to attend.

3.Written Inquiries

All inquiries regarding this BID will be submitted via email to the Boulder County Purchasing Office at on or before 2:00 p.m. July 11, 2023. A response from the county to all inquiries will be posted and sent via email no later than July 13, 2023.

Do not contact any other county department or personnel with questions or for information regarding this solicitation.

4.Submittal Instructions

BIDs are due at the email box only, listed below, for time and date recording on or before 2:00 p.m. Mountain Time on July 20, 2023. A bid opening will be conducted at 3:00 p.m. via Microsoft Teams. Please click on the link below or use the call-in number. A copy of the bid tab will also be sent to all who have submitted a Bid. Vendors must answer whether line-item pricing information submitted with a bid is confidential or closely held.

Microsoft Teams meeting

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Meeting ID: 284 350 877 74
Passcode: AsjKdf

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+1 720-400-7859,,293801969# United States, Denver

Phone Conference ID: 293 801 969#

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Please note that email responses to this solicitation are limited to a maximum of 50MB capacity.


Electronic Submittals must be received in the email box listed below. Submittals sent to any other box will NOT be forwarded or accepted. This email box is only accessed on the due date of your questions or proposals. Please use the Delivery Receipt option to verify receipt of your email. It is the sole responsibility of the proposer to ensure their documents are received before the deadline specified above. Boulder County does not accept responsibility under any circumstance for delayed or failed email or mailed submittals.

Email; identified as BID # 7477-23 in the subject line.

All BIDs must be received and time and date recorded by authorized county staff by the above due date and time. Sole responsibility rests with the bidder to see that their BID response is received on time at the stated location(s). Any BIDs received after due date and time will be returned to the bidder.

The Board of County Commissioners reserves the right to reject any and all BIDs, to waive any informalities or irregularities therein, and to accept the proposal that, in the opinion of the Board, is in the best interest of the Board and of the County of Boulder, State of Colorado.

Contractors and their employees, subcontractors, and agents must comply with all federal, state, and local laws, regulations, ordinances, orders, and codes, as well as Boulder County policies, guidelines, and protocols.

Americans with Disabilities Act (ADA): Americans with Disabilities Act: If you need special services provided for under the Americans with Disabilities Act (ADA), please contact the Boulder County ADA Coordinator or Human Resources office at (303) 441-3525 as soon as possible to allow sufficient time for service delivery ahead of applicable due dates.

BID #7477-23

Attachment A – Construction BID Plans

The attached addendum supersedes the original Information and Specifications regarding BID # 7477-23 where it adds to, deletes from, clarifies or otherwise modifies. All other conditions and any previous addendums shall remain unchanged.

BIDS will only be accepted electronically by emailing

BID #7477-23 Addendum 1