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Listed are all currently available notices inviting bids for County of Riverside Transportation Department public works projects.

Note:  The documents provided are intended for use by professional contractors or by internal County staff and are not intended for use by the general public.  It is expected that the targeted users are capable of viewing and printing Acrobat pdf files.  Therefore, these documents are provided as PDF files only.

Bid Summaries (Webpage)

Current Projects Out to Bid

1 of 2

Replacement of Market Street Bridge at Santa Ana River
Between Hall Avenue and Rivera Street
In the Cities of Jurupa Valley and Riverside
Project No. C0-0528
Federal Aid No. BRLS-5956(200)
No DBE contract goal


Notice to Bidders - Replacement of Market Street Bridge at Santa Ana River

Pre-Bid Meeting:  Wednesday, September 9, 2026, 3:00 p.m. (Mandatory)
PDF File  Pre-Bid Meeting Agenda
PDF File  Pre-Bid Meeting Presentation
PDF File  Pre-Bid Meeting Attendance Roster

Bid Due Date:        
Wednesday, September 23, 2026, 2:00 p.m.
Wednesday, September 30, 2026, 2:00 p.m.
Date revised by Addendum No. 3

Bid Items - Replacement of Market Street Bridge at Santa Ana River

Proposal, page B2 - B9

Vicinity Map - Replacement of Market Street Bridge at Santa Ana River

In the Cities of Jurupa Valley and Riverside

Plan Holder List - Replacement of Market Street Bridge at Santa Ana River

As of 9/30/2026, AM


Addenda
1. Addendum No. 1 dated September 3, 2026
PDF File  Addendum No. 1 (6 pages)
PDF File  Attachment "A" to Addendum No. 1 (New/Additional Bid Form, LAPM Exhibit 9-L: Bidder’s List, 4 pages)

2. Addendum No. 2 dated September 15, 2026
PDF File  Addendum No. 2 (9 pages)
PDF File  Attachment "A" to Addendum No. 2 (Revised Proposal, 8 Pages)
PDF File  Attachment "B" to Addendum No. 2 (Revised Plans, 43 Sheets)
PDF File  Attachment "C" to Addendum No. 2 (Questions & Responses, 4 Pages)
3. Addendum No. 3 dated September 18, 2026
PDF File  Addendum No. 3 (1 page)

4. Addendum No. 4 dated September 24, 2026
PDF File  Addendum No. 4 (10 pages)
PDF File  Attachment "A" to Addendum No. 4 (Revised Proposal, 8 Pages)
PDF File  Attachment "B" to Addendum No. 4 (Revised Plans, 7 Sheets)
PDF File  Attachment "C" to Addendum No. 4 (Questions & Responses, 7 Pages)



Digital Plans and digital Bid Book are available at no cost. 
To obtain a download link, please contact [email protected] (or call (951) 955-6780) and provide company contact information needed for our Plan Holder List (PHL). Once your information is added to the PHL, we will send download link to the provided e-mail address. Printed copy set of Plans and Bid Book are also available for the cost amount listed above (Mail/Shipping cost not included).

Printed document costs:
Bid Book and Plans (11" x 17"): $65.00

Plan Holder List registration and notifications:
Bidding Contractors who obtain digital copies of Plans and Bid Book from planroom(s) are advised to contact [email protected] (or call (951) 955-6780) to have company contact information entered on our Plan Holder List so that we can directly contact your company with any bidding notifications regarding this project.

Company Information requested for Plan Holder List (PHL)

  • Company name
  • Contact person first and last name
  • Company physical address (Street, City, Zip Code)
  • E-mail address
  • Office phone number
  • FAX number

2 of 2

Interstate 10 at Monroe Street
Interchange Improvements
In the City of Indio
Project No. C7-0048
Federal Aid No. STPLN-5956(294)
No DBE contract goal


Notice to Bidders - Interstate 10 at Monroe Street Interchange Improvements

Pre-Bid Meeting:  Wednesday, September 30, 2026, 3:00 p.m. (Mandatory)
New Item
PDF File  Pre-Bid Meeting Agenda
PDF File  Pre-Bid Meeting Presentation
PDF File  Pre-Bid Meeting Attendance Roster

Bid Due Date:        
Wednesday, October 14, 2026, 2:00 p.m.
Wednesday, October 21, 2026, 2:00 p.m.
New Item
(Date revised by Addendum No. 2)

Bid Items - Interstate 10 at Monroe Street Interchange Improvements

Proposal, page B2 - B16

Vicinity Map - Interstate 10 at Monroe Street Interchange Improvements

In the City of Indio

Plan Holder List - Interstate 10 at Monroe Street Interchange Improvements

As of 10/2/2026


Addenda

1. Addendum No. 1 dated September 23, 2026
PDF File  Addendum No. 1 (2 pages)
New Item
2. Addendum No. 2 dated October 1, 2026
PDF File  Addendum No. 2 (1 page)
 


Supplemental Information
New Item 
1. Revised Geotechnical Design Report
PDF File   Dated May 1, 2023, Revised January 20, 2026 (279 pages)

2. Revised Materials Report
PDF File   Dated May 2, 2023, Revised February 27, 2025 (283 pages)

3. Revised Foundation Report - Retaining Wall No. 35
PDF File   Dated May 2, 2023, Revised July 28, 2025 (103 pages)

4. Revised Foundation Report - Retaining Wall No. 50
PDF File   Dated May 2, 2023, Revised July 28, 2025 (126pages)

5. Updated Foundation Report - Overcrossing [Bridge No. 56-0897]
PDF File   Dated May 1, 2023, Updated October 3, 2024 (257 pages)

6. Foundation Report - Bridge Over CVSW Channel [Bridge No. 56C0667]
PDF File   Dated May 24, 2023, Updated May 22, 2026 (640 pages)

7. Aerially Deposited Lead Report
PDF File   Dated October 26, 2018 (58 pages)

8. Final Hydraulic Report - Bridge Over CVSW Channel [Bridge No. 56C0667]
PDF File   Dated May 2026 (249 pages)

9. Indio Water Authority 
PDF File   9A. Waterline Relocation Plans (7 sheets)
PDF File   9B. Waterline Relocation Specifications (190 pages)
PDF File   9C. Waterline Relocation Standard Plans (152 sheets)

10. SoCal Gas
PDF File   SoCal Gas Relocation Plans (73 sheets)

11. Imperial Irrigation District Relocation Plans
PDF File   Imperial Irrigation District Relocation Plans (1 sheet)

12. Imperial Irrigation District Developer Energy Planning Guide
PDF File   Developer Energy Planning Guide 2025, Rev 54 (281 pages)

13. CV Link Shade Structure
PDF File   Shop Drawings (17 sheets)

14. Bridge As-Built Bridge Drawings
PDF File   14A. 1969 Overcrossing Plans [Bridge No. 56-0897] (11 sheets)
PDF File   14B. 1969 Bridge Over CVSW Channel Plans [Bridge No. 56C0667] (12 sheets)
PDF File   14C. 2017 Overcrossing Maintenance Plans [Bridge No. 56-0897] (1 sheet)

15. Cross Sections (Document Pending to be Uploaded Soon)
PDF File Cross Sections

16. Bridge Renderings
PDF File   Power Coating and Concrete Stain Colors (3 pages)



Digital Plans and digital Bid Book are available at no cost. 
To obtain a download link, please contact [email protected] (or call (951) 955-6780) and provide company contact information needed for our Plan Holder List (PHL). Once your information is added to the PHL, we will send download link to the provided e-mail address. Printed copy set of Plans and Bid Book are also available for the cost amount listed above (Mail/Shipping cost not included).

Printed document costs:
Bid Book and Plans (11" x 17"): $65.00

Plan Holder List registration and notifications:
Bidding Contractors who obtain digital copies of Plans and Bid Book from planroom(s) are advised to contact [email protected] (or call (951) 955-6780) to have company contact information entered on our Plan Holder List so that we can directly contact your company with any bidding notifications regarding this project.

Company Information requested for Plan Holder List (PHL)

  • Company name
  • Contact person first and last name
  • Company physical address (Street, City, Zip Code)
  • E-mail address
  • Office phone number
  • FAX number

Additional Notifications

Pre-Bid Meeting Notice:
Attendance by bidding contractors at Pre-Bid meetings is recommended but optional, unless noted otherwise.

ADA Notice:
In compliance with Title II of the Americans with Disabilities Act (ADA), the County of Riverside does not discriminate on the basis of disability in admission to, access to, or operations of its programs, services or activities. It is committed to ensuring that its programs, services and activities are fully accessible to and usable by people with disabilities.
To accommodate persons with disabilities, documents in this web page are available in alternate formats upon request.

Request for e-mail notifications:
Email [email protected] with “Request for e-mail notifications regarding bids” in the subject line to be added on an e-mailing notification list regarding this webpage.  E-mail notices are sent to this notification list when new County public works project bids are added, amended, and/or when bid summaries are posted.


Notice:
The County of Riverside Transportation Department intends soon to utilize


an electronic bidding software, to assist the prequalification, proposals, advertising  and bid process for our public works projects.
Click here to register


 

Contact Information

Mail and e-mail address & phone

Riverside County Transportation Department
Contracts / Bidding Unit
3525 14th Street
P.O. Box 1090
Riverside, CA 92502 (USA)
[email protected]
Phone: (951) 955-6780
Fax: (951) 955-3164

Office Location:

3525 14th Street
Riverside, CA  92501
The building is on the corner of 14th Street and Lemon Street.
Location Map

Please note office location address is the location for purchase of plans and specifications that will be out to bid, and is also the location for submittal of paper bids for Transportation Department public works projects. The Transportation Department Annex is located 2 blocks south of the County Administrative Center.

If paying for copy of Plans and Bid Book, only checks can be accepted at the 14th Street Annex.  Payment by cash, if unavoidable, must be made at the County Administrative Center.

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