Signalized Intersection Battery Backup Citywide
Project No. TR2408, Bid No. 2709
January 28, 2026, Engineering Division
Power Outage Resilience
2 •SSF experiences recurring power outages,
typically 3–4 hours, with occasional longerduration events •Signals without backup go dark, increasing
collision risk, congestion, and EMS delays
•Plan: 6 hours of continuous operation at
all traffic signals
•Covers most PG&E restoration times
•Reduces need for police traffic control
and portable generators
•Plan: 12 hours of continuous operation at
busiest signals
•Addresses longer-duration and higherimpact outages
•Protects critical intersections, regional
routes, and emergency access
Average Outage
Duration
(minutes)
How long should we expect signals to be without utility power? Source - PG&E 2024 Annual Electric Reliability Report
Improvements – Separate and Attached Cabinets
3 Signal Cabinet
Battery
Cabinet
Signal Cabinet
Battery
Cabinet
Project Location
4 Bid Results
5 BidContractorRank
$1,251,407.00W. Bradley Electric, LLC1
$1,277,000.00Bay Area Lightworks, Inc.2
$1,345,407.00Ray’s Electric3
$1,410,688.00Nema Construction4
$1,566,500.00Bear Electrical Solutions, LLC5
$1,637,620.00Columbia Electric, Inc.6
$1,153,000.00Engineers Estimate
Procurement Method
6 1. Competitive Bidding for Construction Projects
–Cost is generally the sole determining factor
2. Open Market Procedures for Vendors (Supplies and Equipment) –Cost > $25,000, required to solicit the project through an RFP –Cost can be only one factor in selection (SSFMC § 4.04.080) –Federally Funded, do not include state or local geographical preferences. –Nondiscrimination and equal opportunity for all vendors.
3. Open Market Procedures for Architectural and Engineering (A&E) Professional Services
–Consultant is selected through a qualifications-based selection (Gov. Code § 4526.)
Construction Budget
7 Construction Contract $1,251,407.00
Construction Contingency (~20%) $250,000.00
Total Construction Contract Authority Budget $1,501,407.00 Schedule
8 Stage 1
MATERIAL PROCUREMENT
•Feb – Oct 2026
Stage 2
CONSTRUCTION
•Nov 2026 – Mar 2027
Signalized Intersection Battery Backup Citywide
City of South San Francisco