HomeMy WebLinkAbout5.6 Dougherty Hills Open Space Slide & Trail Repair (FEMA 716372) and Dublin Slide Repair between Inspiration Dr & Silvergate Dr (FEMA 733034), CIP GI0221 – Final Acceptance of Project Work
STAFF REPORT
CITY COUNCIL
Page 1 of 6
Agenda Item 5.6
DATE: December 16, 2025
TO: Honorable Mayor and City Council members
FROM: Colleen Tribby, City Manager
SUBJECT:
Dougherty Hills Open Space Slide and Trail Repair Project (FEMA Project
No. 716372) and Dublin Boulevard Slide Repair Between Inspiration Drive
and Silvergate Drive Project (FEMA Project No. 733034), CIP No. GI0221,
Acceptance of Work
Prepared by: Andrew Russell, Public Works Director
EXECUTIVE SUMMARY:
The City Council will consider accepting the Dougherty Hills Open Space Slide and Trail
Repair Project and the Dublin Boulevard Slide Repair Between Inspiration Drive and Silvergate
Project. The projects consisted of repairing shallow landslides and other damage caused by
the storms in winter 2022-2023.
STAFF RECOMMENDATION:
Adopt the Resolution Accepting the Dougherty Hills Open Space Slide and Trail Repair
Project, CIP No. GI0221, FEMA Project No. 716372; and adopt the Resolution Accepting the
Dublin Boulevard Slide Repair Between Inspiration Drive and Silvergate Drive Project , CIP No.
GI0221, FEMA Project No. 733034.
FINANCIAL IMPACT:
The Dougherty Hills Open Space Slide and Trail Repair Project and the Dublin Boulevard Slide
Repair Between Inspiration Drive and Silvergate Project are two of five projects included in the
Resiliency and Disaster Preparedness Improvements Capital Improvement Program project
(CIP No. GI0221). The total cost for the two projects is as follows:
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Resiliency and Disaster Preparedness Improvements, CIP No. GI0221
Funding Source (Total Resiliency Project Budget)
General Fund $3,414,189
Total Funding $3,414,189
Expenditures
Dougherty Hills Open Space Slide and Trail Repair $1,278,301
Construction Contract: $965,078
Change Orders: $13,223
Contract Services, Design, Salary, and Testing: $300,000
Dublin Boulevard Slide Repair Between Inspiration Drive and Silvergate Drive $778,028
Construction Contract: $587,620
Change Orders: ($9,592)
Contract Services, Design, Salary, and Testing: $200,000
Total Expenditures $2,056,329
Mape Memorial Park Pathway Relocation (Approved 12/2/25) $249,377
Total Expenditures of Approved Projects $2,305,706
Estimated Project Balance $1,108,483
The remaining budget will be retained within CIP No. GI0221 for use on the other Resiliency
and Disaster Preparedness projects. The Mape Memorial Park Pathway Relocation Project
was completed and accepted by the City Council on December 2, 2025.
DESCRIPTION:
The 2024-2029 Capital Improvement Program (CIP) includes the Resiliency and Disaster
Preparedness Improvements Project, CIP No. GI0221. The Resiliency and Disaster
Preparedness Improvements Project provides for the planning, design, environmental
permitting, and construction of repairs at various sites throughout the City that were damaged
in the series of rainfall events in December 2022 and January 2023, which were declared a
major disaster for the State of California, including Alameda County, by the President on
January 14, 2023.
Dougherty Hills Open Space Slide and Trail Repair
On June 17, 2025, the City Council awarded the Dougherty Hills Open Space and Trail Repair
construction contract in the amount of $965,078 to Granite Construction Company. The work
included the reconstruction of a slope, trail, and associate improvements at the trailhead
adjacent to the intersection of Crossridge Road and Shady Creek Road. As a condition of the
contract, Granite Construction Company is required to warranty the improvements for a period
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of one year following the completion of the work and maintain a maintenance bond in the
amount of 10% of the final contract value.
During construction, additive change orders for $29,023 were issued for additional tree
removals, slope hydroseeding, erosion control measures, aggregate base material, subdrain
markers, and trail signs. Deductive changes for $15,800 were applied for the field-verified
decrease in contract bid item quantities and for a change to reuse an existing storm drain inlet
instead of constructing a new inlet. The resulting balancing of change orders results in a net
increase of $13,223. The improvements have been completed in accordance with plans and
specifications to the satisfaction of the City Engineer, and Staff recommends that the City
Council accept the project and begin the warranty period. Pictures of the damage and the
repair work are provided below.
Image 1 – Damaged slope, from bottom
Image 2 – Repaired slope, from bottom
Image 3 – Repaired trail and slope
Image 1 Image 2
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Image 3
Dublin Boulevard Slide Repair Between Inspiration Drive and Silvergate Drive
On June 17, 2025, the City Council awarded the Dublin Boulevard Slide Repair Between
Inspiration Drive and Silvergate Drive construction contract in the amount of $587,620 to
Granite Construction Company. The work included the reconstruction of the roadside slope and
trail damaged by shallow landslides that occurred along Dublin Boulevard between Inspiration
Drive and Silvergate Drive. As a condition of the contract, Granite Construction Company is
required to warranty the improvements for a period of one year following the completion of the
work and maintain a maintenance bond in the amount of 10% of the final contract value.
During construction, additive change orders for $109,553 were issued for additional
underground utility locating, trail reconstruction, rock excavation, large rock slope protection,
erosion control materials, subdrain markers, and slope hydroseeding. Deductive changes for
$119,145 were applied for the field verified decrease in contract bid item quantities. The
resulting balancing of change orders results in a net decrease of $9,592. The improvements
have been completed in accordance with plans and specifications to the satisfaction of the City
Engineer, and Staff recommends that the City Council accept the project and begin the
warranty period. Pictures of the damage and the repair work are provided below.
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Image 1 – Damaged slope, from top
Image 2 – During construction, from bottom
Image 3 – Repaired slope, drone view
Image 1 Image 2
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Image 3
STRATEGIC PLAN INITIATIVE:
None.
NOTICING REQUIREMENTS/PUBLIC OUTREACH:
The City Council Agenda was posted. A copy of this Staff Report was provided to Granite
Construction Company.
ATTACHMENTS:
1) Resolution Accepting the Dougherty Hills Open Space Slide and Trail Repair Project, CIP
No. GI0221, FEMA Project No. 716372
2) Resolution Accepting the Dublin Boulevard Slide Repair Between Inspiration Drive and
Silvergate Drive Project, CIP No. GI0221, FEMA Project No. 733034
3) CIP No. GI0221
380
Attachment 1
Reso. No. XX-25, Item X.X, Adopted 12/16/2025 Page 1 of 2
RESOLUTION NO. XX - 25
A RESOLUTION OF THE CITY COUNCIL
OF THE CITY OF DUBLIN
ACCEPTING THE DOUGHERTY HILLS OPEN SPACE SLIDE AND TRAIL REPAIR PROJECT,
CIP NO. GI0221, FEMA PROJECT NO. 716372
WHEREAS, on June 17, 2025, the City entered into a construction contract with Granite
Construction Company for the Dougherty Hills Open Space Slide and Trail Repair Project, CIP
No. GI0221, FEMA Project No. 716372; and
WHEREAS, said improvements have been completed in accordance with plans and
specifications, and any approved modifications thereof, to the satisfaction of the City Engineer of
the City of Dublin; and
WHEREAS, as a condition of the contract, Granite Construction Company is required to
warranty the improvements for a period of one year followi ng the completion of the work and
maintain a maintenance bond in the amount of 10% of the final contract value.
NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of Dublin does
hereby accept the Dougherty Hills Open Space Slide and Trail Re pair Project, CIP No. GI0221,
FEMA Project No. 716372, and authorize Staff to file a Notice of Completion with Alameda County.
BE IT FURTHER RESOLVED that the City Council of the City of Dublin does hereby
authorize the City Manager, or designee, to relea se the retention, if after 35 days of filing the
Notice of Completion there are no subcontractor claims.
BE IT FURTHER RESOLVED that the City Council of the City of Dublin does hereby
authorize the City Manager, or designee, to release the maintenance bon d at the end of the one-
year warranty period.
{Signatures on the following page}
381
Reso. No. XX-25, Item X.X Adopted 12/16/2025 Page 2 of 2
PASSED, APPROVED AND ADOPTED by the City Council of the City of Dublin this 16th
day of December 2025, by the following vote:
AYES:
NOES:
ABSENT:
ABSTAIN:
______________________________
Mayor
ATTEST:
_________________________________
City Clerk
382
Attachment 2
Reso. No. XX-25, Item X.X, Adopted 12/16/2025 Page 1 of 2
RESOLUTION NO. XX - 25
A RESOLUTION OF THE CITY COUNCIL
OF THE CITY OF DUBLIN
ACCEPTING THE DUBLIN BOULEVARD SLIDE REPAIR BETWEEN INSPIRATION DRIVE AND
SILVERGATE DRIVE PROJECT, CIP NO. GI0221, FEMA PROJECT NO. 733034
WHEREAS, on June 17, 2025, the City entered into a construction contract with Granite
Construction Company for the Dublin Boulevard Slide Repair Between Inspiration Drive and
Silvergate Drive Project, CIP No. GI0221, FEMA Project No. 733034 ; and
WHEREAS, said improvements have been completed in accordance with plans and
specifications, and any approved modifications thereof, to the satisfaction of the City Engineer of
the City of Dublin; and
WHEREAS, as a condition of the contract, Granite Construction Company is required to
warranty the improvements for a period of one year following the completion of the work and
maintain a maintenance bond in the amount of 10% of the final contract value.
NOW, THEREFORE, BE IT RESOLVED that the City Council of the City of Dublin does
hereby accept the Dublin Boulevard Slide Repair Between Inspiration Drive and Silvergate Drive
Project, CIP No. GI0221, FEMA Project No. 733034, and authorize Staff to file a Notice of
Completion with Alameda County.
BE IT FURTHER RESOLVED that the City Council of the City of Dublin does hereby
authorize the City Manager, or designee, to release the retention, if after 35 days of filing the
Notice of Completion there are no subcontractor claims.
BE IT FURTHER RESOLVED that the City Council of the City of Dublin does hereby
authorize the City Manager, or designee, to release the maintenance bond at the end of the one -
year warranty period.
{Signatures on the following page}
383
Reso. No. XX-25, Item X.X Adopted 12/16/2025 Page 2 of 2
PASSED, APPROVED AND ADOPTED by the City Council of the City of Dublin this 16th
day of December 2025, by the following vote:
AYES:
NOES:
ABSENT:
ABSTAIN:
______________________________
Mayor
ATTEST:
_________________________________
City Clerk
384
Resiliency and Disaster Preparedness
Improvements
Overview
Project Number GI0221
Description
Beginning in the end of December 2022 through the rst few weeks of 2023, Dublin and most of California experienced
damage due to a series of rain fall events that were declared a major disaster in Alameda County by the President on January
17, 2023. The City experienced damage at various sites, including street rights-of-way, parks and open space, and facilities and
buildings. This project provide for the planning, design, environmental permitting, if necessary, and construction to make the
repairs at various sites impacted. The following locations and types of repairs have been identi ed:
Dougherty Hills Open Space, Crossridge Road Trailhead – slide repair
Dublin Boulevard, between Inspiration Drive and Silvergate Drive – slide repair
Mape Memorial Park – Pathway Relocation
Koopman Canyon Creek at Shannon Community Center/San Ramon Road – channel and culvert improvements
Martin Canyon Creek at Silvergate Drive - channel improvements
Koopman Canyon Creek at Fenwick Court - trash rack repair and channel improvements
Clark Canyon Creek at Padre Way - track rack repair and channel improvements
The City has applied for grants for this project through the Federal Emergency Management Agency (FEMA) and California
Of ce of Emergency Services (CalOES).
Capital Cost
Historical
$1.1M
FY2025 Budget
$937K
Total Budget (all years)
$2.31M
Project Total (to date)
$3.41M
Detailed Breakdown
Category Historical FY2025 FY2026 FY2027 FY2028 FY2029 Future Total
9400 - Repairs/Improvements $825,000 $660,000 $1,000,000 $0 $0 $0 $0 $2,485,000
9200 - Contract Services $223,000 $277,000 $300,000 $0 $0 $0 $0 $800,000
9100 - Salaries & Bene ts $54,189 $0 $75,000 $0 $0 $0 $0 $129,189
Total $1,102,189 $937,000 $1,375,000 $0 $0 $0 $0 $3,414,189
Resiliency and Disaster Preparedness Improvements
2024-2029 Five-Year Capital Improvement Program Update | DublinPage 49
Attachment 3
385
Funding Sources
Historical
$1.1M
FY2025 Budget
$937K
Total Budget (all years)
$2.31M
Project Total (to date)
$3.41M
Operational Costs
FY2025 Budget
$0
Total Budget (all years)
$0
Project Total
$0
Project Timeline
●07/1/2025
The clean-up effort immediately following the storm events are complete and the preliminary
engineering for the permanent repair began in Fiscal Year 2023-24. The project is currently in the
preliminary engineering, design, or construction phases. A construction contract for the Mape
Memorial Park Pathway Relocation project was awarded in May 2025 and construction began in June
2025. The two slide repair projects are anticipated to begin construction in summer 2025.
Detailed Breakdown
Category Historical FY2025 FY2026 FY2027 FY2028 FY2029 Future Total
1001 - General Fund $1,102,189 $937,000 $1,375,000 $0 $0 $0 $0 $3,414,189
Total $1,102,189 $937,000 $1,375,000 $0 $0 $0 $0 $3,414,189
Table of ContentsResiliency and Disaster Preparedness Improvements
2024-2029 Five-Year Capital Improvement Program Update | Dublin Page 50 386