5694 - Underground Vault Structures, Lids, Pads and Cover Assemblies

April 29, 2026
NOTICE INVITING BIDS
TO FURNISH
UNDERGROUND VAULT STRUCTURES, LIDS,
PADS, AND COVER ASSEMBLIES
CITY OF REDDING, CALIFORNIA
(Bid Schedule #5694)
In accordance with the provisions of the Municipal Code of the City of Redding, sealed bids
will be received by the City of Redding, at the 3rd Floor City Clerk's Office at City Hall, 777
Cypress Avenue, Redding, California 96001-2718, until 3:00 P.M. PT, Wednesday, May 27, 2026,
to furnish underground vault structures, lids, pads, and cover assemblies for the City of Redding, per
the bid specifications and general conditions.
BIDS RECEIVED AFTER THIS TIME AND DATE WILL NOT BE ACCEPTED OR CONSIDERED.
The said bids will be opened at 3:00 P.M. PT, on Wednesday, May 27, 2026, in the designated
City Hall Conference Room as posted in the main lobby of City Hall, 777 Cypress Avenue,
Redding, California.
All bids must be submitted on standard bid forms provided by the City of Redding. The
bidder shall provide one (1) original (unbound) and one (1) complete copy of the bid
proposal submission. Fax or electronic submission of bid proposals will not be allowed.
The City will award any resulting contract in a manner consistent with the City's purchasing
ordinance.
The cut-off date and time for receiving questions regarding this bid is 5:00 P.M. PT,
on Tuesday, May 12, 2026. All inquiries must be made in writing and may be submitted to the
email address shown below.
THE CITY OF REDDING
Purchasing Division
Jennifer Antunes
Jennifer Antunes - Buyer
jantunes@cityofredding.gov

NOTE
If a potential bidder/proposer received this solicitation document through
some means other than surface mail from the City of Redding (such as from the City
of Redding Internet web site, or from another prospective bidder/proposer), it is the
responsibility of the potential bidder/proposer to advise the assigned City of Redding
Purchasing contact of its intention to submit a bid/proposal so that any addenda or
other correspondence related to this solicitation will be sent to the potential
bidder/proposer. When contacting the Purchasing Division, the bidder/proposer shall
provide the solicitation number located on the cover page of this document.
Transmittal of this information must be in writing, by U.S. Mail, or e-mail.
Transmittal of this information via telephone is not acceptable.
Please submit bid on enclosed form only. Forward to:
City of Redding
City Clerk
777 Cypress Avenue
Redding, CA 96001
Mailing envelope is to be clearly marked on the outside with the following notation:
"Bid on Schedule No. 5694; opening at
3:00 P.M. on Wednesday, May 27, 2026"
Bids may not be considered unless:
1. Your original Bid submittal and the stated number of copies are received.
2. Original Bid proposal form is completed and signed in ink.
3. Signature is legible - No initials.
4. Addendums are acknowledged (If any)
Purchasing Division

NOTICE INVITING BIDS
TO FURNISH
UNDERGROUND VAULT STRUCTURES, LIDS,
PADS, AND COVER ASSEMBLIES
TO THE CITY OF REDDING, CALIFORNIA
(Bid Schedule No. 5694)
GENERAL SPECIFICATIONS
1. PURPOSE
The purpose of these specifications is to establish requirements for precast concrete underground vault
structures, vault lids, aluminum quick-release lids, traffic-rated frame and cover assemblies, and
associated enclosure pads and covers for general use in the City of Redding Electric Utility's underground
distribution system. It is the intent of these specifications to obtain products of proven performance,
rugged, reliable, and capable of remaining in service for many years with minimal maintenance.
Only manufacturers with a minimum of five (5) years of demonstrated experience manufacturing
products of the type and size specified will be considered. Manufacturers shall have continuous market
presence in the United States with necessary infrastructure in place, including technical support and
ability to supply replacement components.
All products shall be manufactured with parts and materials commonly available in the United States
where practical. Products built to foreign or international standards will not be allowed unless the
manufacturer positively demonstrates, to the City's satisfaction, that the products also meet all applicable
ASTM, AASH.O, ANSI, and California standards in addition to the requirements of these specifications.
2. ORDERING AND PAYMENT
Orders will be placed at any time within the contract period utilizing the City's purchase order process.
Each purchase order will specify the delivery location (City warehouse or job site) and, for job site
deliveries, the site address and site contact. Any standby time beyond the first thirty (30) minutes shall be
billed per Item E-1. For warehouse deliveries, order confirmation shall be provided to the Electric Utility
Warehouse at (530) 224-4329 within two (2) business days of purchase order issuance. For job site
deliveries, confirmation shall be provided to the designated REU site contact identified on the purchase
order. The City of Redding issues payment upon receipt and acceptance of the complete order under each
purchase order; no partial payments will be made unless otherwise agreed in writing. Sales tax shall be
invoiced where applicable.
Should a situation arise requiring immediate delivery, the City reserves the right to purchase from any
available source if the successful bidder is unable to make timely delivery.
3. TERM OF CONTRACT
The materials to be furnished under this proposal shall be delivered at such time and in such quantities as
called for by the City of Redding and the initial contract period shall begin upon date award through June
30, 2027. If mutually agreeable, with all prices, terms and conditions remaining the same, this contract
may be extended annually for up to two (2) additional one-year periods through June 30, 2029.
4. PRICING
Prices shall be firm for the initial contract period through June 30, 2027.

Bidders may submit pricing for all groups or for individual groups only. A bid that omits pricing for one
or more groups will still be considered for the groups on which pricing is provided, provided all other
responsiveness criteria are met for those groups. Failure to provide a unit price for any item within a
group the Bidder has elected to bid will result in the bid being considered non-responsive for that group.
5. CONTRACT CANCELLATION
City of Redding reserves the right to cancel this contract with thirty (30) days advance written notice. All
orders in production at the time of cancellation will be paid for upon receipt and acceptance of the units.
6. DELIVERY
6.1 Warehouse Delivery. Materials ordered for warehouse delivery shall be shipped and delivered FOB
Redding, California, to the City of Redding Corporation Yard, Electric Utility Building No. 2, 20055
Viking Way, Redding, CA 96003-8229. Materials shall be loaded such that they may be unloaded with a
forklift from the side of the delivery vehicle. Delivery will only be accepted during normal warehouse
hours, Monday through Friday, 8:00 a.m. to 3:00 p.m., excluding weekends and City holidays. The
Bidder shall call the Electric Utility Warehouse at (530) 224-4329 at least 24 hours prior to delivery.
6.2 Job Site Delivery. Materials ordered for job site delivery shall be delivered FOB to the specified job
site address within the REU service territory. The purchase order will specify the site address, site
contact, and whether placement into a prepared excavation is required. The Bidder shall coordinate
delivery timing with the City site contact at least 48 hours in advance. When vault bodies are to be set
into excavations, the excavation will be prepared and ready prior to the Bidder's scheduled arrival.
Standby time charges (Item E-1) apply when excavation readiness or City direction is unavailable within
thirty (30) minutes of the scheduled arrival time.
6.3 General. All shipping costs including freight, delivery, fuel surcharges, and U.S. Customs fees if
applicable shall be borne by the Bidder. No additional freight or delivery charges will be permitted
beyond the unit price bid.
7. LIQUIDATED DAMAGES
In the event the Bidder is awarded the contract and fails to deliver the materials within the quoted lead
time, or any extended lead time agreed upon in writing, liquidated damages shall be assessed at the rate of
$100.00 per calendar day for each calendar day the complete order is received late. The total amount of
liquidated damages shall not exceed ten percent (10%) of the net cost of the order. The City will also
attempt to procure items from other sources if delivery is significantly delayed.
8. DELAYS AND EXTENSION OF TIME
If the Bidder is delayed in delivery by any act or neglect of the City, or by strikes, lockouts, fire, adverse
weather conditions not reasonably anticipated, acts of God, or unavoidable casualties, the Bidder shall,
within 48 hours of the start of the occurrence, provide written notice to the City of the cause of the delay
and an estimate of the time extension required. No claim for damages shall be made for delays arising
from the above causes; only an appropriate extension of time will be considered.
Failure by the Bidder to provide timely written notice will be considered grounds for refusal of a time
extension. No extension of time will be considered for delays at international border crossings due to
inspection procedures, nor for weather conditions normal to Northern California.
9. BID EVALUATION
The Estimated Quantity column on the Bid Proposal Spreadsheet is the multiplier used to determine the
lowest responsive bidder. The evaluated price of each item is the unit price multiplied by the estimated

quantity. The Bid Group Evaluated Subtotal is the sum of all evaluated line items within that group. The
Net delivered Evaluated Total is the sum all groups. In all cases, unit prices shall prevail in determining
evaluated totals.
The City reserves the right to make separate awards by group to different responsive bidders if doing so
results in a lower overall cost to the City or is otherwise in the City's best interest. A separate contract or
purchase order will be issued to each awarded vendor. Bidders shall not condition their pricing on
receiving an award of all groups.
10. GUARANTEE
The Bidder warrants that all materials furnished shall be free from defects in design, materials, and
workmanship, and shall perform under all conditions of service specified or reasonably implied. The
Bidder shall, upon written notice from the City, promptly repair or replace at no charge any materials that
prove defective within two (2) years from the date of delivery under normal and proper use.
11. QUALITY ASSURANCE
Only products that the City of Redding Electric Department recognizes as meeting or exceeding the listed
specifications will be accepted. Prior approval by the Electric Department is required for any substitutions
or deviations. The City reserves the right to inspect materials upon delivery and reject any item that does
not conform. Rejected items shall be removed and replaced at the Bidder's expense.
12. TRANSPORTATION AND HANDLING
Bidder shall transport all products by methods that prevent damage; deliver in undamaged condition and,
where possible, in manufacturer's original packaging. Bidder shall ensure adequate blocking, bracing, and
cushioning, particularly for precast concrete items. City personnel will inspect all deliveries upon receipt;
products found damaged will be rejected and replaced by the Bidder at no additional cost.
13. SAFETY DATA SHEETS
Safety Data Sheets (SDS) shall accompany each order, and four (4) copies shall be supplied at the time of
delivery, if applicable. Under no circumstances will a potentially hazardous material be brought onto a
City project site until adequate SDS information has been received. The handling and transportation of
any hazardous materials must comply with all applicable federal, state, and local regulations.
14. USAGE REPORT
The Bidder shall provide a summary of items and quantities purchased under this contract at any time
upon request by the City of Redding.
15. AWARD OF CONTRACT
The award of this contract, if made, will be based on availability of budgeted funds and will be made to
the responsible bidder(s) with the lowest responsive price. Awards may be made on a group-by-group
basis to different vendors where that approach yields a lower overall cost to the City or is otherwise in the
City's best interest. A separate contract or purchase order will be issued to each awarded vendor.
The City reserves the right to reject any or all bids and to waive minor irregularities as may be in the
City's best interest. Award of one or more groups to a bidder does not obligate the City to award
remaining groups to that bidder.

TECHNICAL SPECIFICATIONS
1. BID GROUP A- PRECAST CONCRETE VAULT BODIES AND PULL BOXES
1.1 SCOPE
This section governs precast concrete vault bodies (Bid Items A-1 through A-5), electric pull boxes (Bid
Items A-6 through A-8), and pull box ring components (Bid Items A-9 through A-14). Ring components
for Items A-9 through A-14 are governed by this section as structural elements of the pull box assembly.
Concrete lids for pull boxes are separately bid under Group B.
1.2 CODES AND STANDARDS
ASTM C857-Standard Practice for Minimum Structural Design Loading for Underground Precast
Concrete Utility Structures
ASTM C858-Standard Specification for Underground Precast Concrete Utility Structures
AASHTO Standard Specifications for Highway Bridges
ACI 318-Building Code Requirements for Structural Concrete
CPUC General Order 128
REU Construction Standards CS0428, CS1110, CS1116, CS1118, CS1120, CS1122
1.3 MATERIALS
Concrete shall be Class A, 5.5-sack minimum mix design with a minimum 28-day compressive strength
of 5,000 psi. Water-cement ratio shall not exceed 0.45. Aggregates shall conform to ASTM C33. Tongue-
and-groove joint surfaces shall be sealed with plastic mastic sealant per CS1122 Note 5.
1.4 DESIGN LOADS
Traffic-rated vault bodies and pull boxes shall be designed for AASHTO H-20 highway loading (16,000
lb wheel load) with appropriate impact factor per ASTM C857 and CS1121 Note 2. Non-traffic-rated
structures shall be designed for non-traffic loading per ASTM C857.
1.5 LIFTING HARDWARE
Lifting inserts shall be rated for the full unit weight with a minimum safety factor of 5:1 per CS1122 Note
9.
1.6 DIMENSIONS
Vault body and pull box dimensions shall conform to the applicable REU Construction Standard as listed
in the Bid Schedule. Interior dimensions for vault bodies are governed by CS0428 (Item A-1), CS1116
(Item A-2), CS1118 (Item A-3), CS1120 (Item A-4), and CS1122 (Item A-5). Pull box dimensions shall
conform to CS1110 as applicable per bid item. Ring component dimensions for Items A-9 through A-14
are governed by the applicable Construction Standard; the bidder shall confirm dimensional compatibility
with existing installed structures and note any deviation on the product information sheet.
1.7 OPENINGS AND CONDUIT KNOCKOUTS
Vault bodies and pull boxes shall include conduit entry knockouts as shown on the applicable REU
Construction Standard. Knockouts shall be cleanly formed without cracking or spalling of adjacent
concrete.

1.8 SURFACE FINISH AND MARKINGS
Interior surfaces shall be smooth-formed or given a rubbed finish. Each structure shall be permanently
marked with the manufacturer's name, date of manufacture, and applicable ASTM designation. Each
structure shall be stenciled on an exterior surface with the unit weight (lbs) and manufacturer's catalog
number per CS0428 Note 3.
1.9 FACTORY TESTING AND CERTIFICATION
Each structure shall be tested and certified per ASTM C858. The manufacturer shall submit test reports
and dimensional certifications with each delivery or upon request.
2. BID GROUP B- PRECAST CONCRETE PADS, VAULT LIDS, AND PULL BOX LIDS
2.1 SCOPE
This section governs precast concrete vault lids (Bid Items B-1), pull box lids (Bid Items B-4 through B-
9), and the precast concrete transformer and sectionalizing enclosure pads (Bid Item B-2 through B-3 and
B-10 through B-11).
2.2 CODES AND STANDARDS
ASTM C857, ASTM C858, ACI 318, CPUC General Order 128
REU Construction Standards CS0330, CS0331, CS1110, CS1132, CS1135, CS0428
2.3 MATERIALS
Concrete shall have a minimum 28-day compressive strength of 5,000 psi. Water-cement ratio shall not
exceed 0.45. Aggregates shall conform to ASTM C33.
2.4 VAULT LIDS
Precast concrete vault lids (Items B-1) shall conform to the applicable REU Construction Standard. Lids
shall be dimensionally compatible with the corresponding vault body opening. Load ratings shall be
clearly stated by the manufacturer and confirmed by the bidder as compatible with the specified
application.
2.5 PULL BOX LIDS
Precast concrete pull box lids (Items B-4 through B-9) shall conform to CS1110 or the applicable pull box
standard. Lids shall be dimensionally compatible with the corresponding pull box opening and load-rated
for the specified traffic condition.
2.6 SECTIONALIZING ENCLOSURE PAD
Precast concrete sectionalizing enclosure pads (Items B-2 through B-3) shall conform to ASTM C857 and
ACI 318. Minimum 28-day compressive strength: 5,000 psi. Pad dimensions, reinforcing, and
configuration shall conform to REU Construction Standards CS1132 and CS1135 as applicable per bid
item. The City will provide enclosure base dimensions with the purchase order.
2.7 TRANSFORMER PADS
Precast concrete transformer pads (Items B-10 through B-11) shall conform to ASTM C857 and ACI 318.
Minimum 28-day compressive strength: 5,000 psi. Water-cement ratio shall not exceed 0.45. Aggregates
shall conform to ASTM C33.

Pad dimensions, reinforcing, grounding, and configuration shall conform to REU Construction Standard
CS0330 or CS0331 as applicable per bid item.
2.8 MARKINGS AND CERTIFICATION
Each lid and pad shall be marked with the manufacturer's name, date of manufacture, and applicable
ASTM designation. Unit weight and catalog number shall be stenciled on each unit per CS0428 Note 3.
The manufacturer shall submit dimensional certifications with each delivery or upon request.
3. BID GROUP C- ALUMINUM QUICK-RELEASE COVERS AND LIDS
3.1 SCOPE
This section governs aluminum quick-release covers and lids for vault and pull box openings at non-
traffic and incidental-traffic locations (Bid Items C-1 through C-4).
3.2 CODES AND STANDARDS
ASTM B209-Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate
CPUC General Order 128
REU Construction Standards CS1134 and CS1126
3.3 DESIGN REQUIREMENTS
Covers and lids shall be rated for incidental pedestrian and sidewalk loading as applicable per bid item.
Each unit shall be dimensionally compatible with the corresponding vault or pull box opening as shown
on the applicable REU Construction Standard. The bidder shall confirm dimensional compatibility prior
to order placement; any incompatibilities shall be noted as deviations on the product information sheet.
3.4 MATERIALS AND FINISH
Covers and lids shall be fabricated from aluminum alloy. Finish shall provide corrosion resistance
suitable for direct burial and outdoor exposure. Load ratings shall be clearly stated by the manufacturer.
3.5 MARKINGS
Each cover and lid shall be permanently labeled 'R.E.U. HIGH VOLTAGE' per CS1114 Detail C and
CS1126 Note 3.".
3.6 SUBMITTALS
The bidder shall submit dimensional drawings and load rating certifications for each Group C bid item
with the bid proposal. Written REU Engineering approval of submitted drawings is required prior to
placement of the first purchase order under each item.
3.7 RETRO-FIT 3X5 LIDS
Retrofit lids are aluminum quick-release lids intended for installation on existing in-service vault
openings without replacement of the existing frame or surround per CS1134. The retrofit lid shall seat
directly on the existing opening and provide a secure, weather-resistant fit without structural modification
to the vault. Load ratings shall be consistent with the applicable Group C bid item and clearly stated by
the manufacturer.

4. BID GROUP D- FULL-TRAFFIC FRAME AND COVER ASSEMBLIES
4.1 SCOPE
This section governs full-traffic-rated frame and cover assemblies for vault openings in paved roadway
and traffic-exposed locations (Bid Items D-1 through D-3).
4.2 CODES AND STANDARDS
ASTM A48-Standard Specification for Gray Iron Castings
ASTM A36-Standard Specification for Carbon Structural Steel
ASTM A-123-Standard Specification for Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products
ASTM A153-Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware
AASHTO Standard Specifications for Highway Bridges
CPUC General Order 128
REU Construction Standards CS1117, CS1119, CS1121, CS1110
4.3 DESIGN LOADS
All assemblies shall be designed for AASHTO H-20 highway loading (16,000 lb wheel load) with
appropriate impact factor per CS1121 Note 2.
4.4 FRAME
Frames shall be adjustable galvanized steel per ASTM A-123, providing a minimum of three (3) inches of
vertical grade adjustment. The frame shall accept grouting between the base and vault opening without
cracking or distortion. Where aluminum covers interface with galvanized steel frames, a factory-installed
dielectric barrier (neoprene or nylon) shall be provided per CPUC GO-128 Rule 35.3.
4.5 COVER
Covers shall be aluminum, load-rated for AASHTO H-20 service, with a skid-resistant surface. Each
cover shall be permanently labeled "R.E.U. HIGH VOLTAGE" per CS1114 Detail C.
4.6 MATERIALS AND FACTORY TESTING
All steel frame components shall be hot-dip galvanized per ASTM A-123. Fasteners shall be AISI Type
304 or 316 stainless steel, or hot-dip galvanized per ASTM A153. Each assembly shall be factory-
inspected for dimensional compliance and galvanizing continuity prior to shipment.

REFERENCE DRAWINGS
The following REU Construction Standards are applicable to this bid and are incorporated by reference. Copies
are available from the Electric Utility Engineering Division upon request.
Drawing No. Title
CS0330, SH.
1 Phase Transformer Pad Installation 25-167kVA (Pad Details)
1
CS0331, SH.
3 PHASE TRANSFORMER PAD INSTALLATION 45-1500 KVA
1
CS0333, SH.
3 Phase Transformer Pad Installation (Open Delta)
1
CS0428, SH. 600 Amp Padmount Switchgear - Switch Vault Details (7'x9' vault body, diamond plate cover
1 assembly)
CS1110, SH. Concrete Electric Pull Boxes 2E, 3E, 4E - Dimensions, Approved Manufacturers, Traffic-Rated
1-2 Installation Details
CS1114 Primary Splice Box Construction and Installation Details - Hardware Details
CS1115 Ground Rod Installation for Splice Boxes
CS1116, SH.
3'-0"x5'-0" Primary Splice Box - Dimensions, Conduit Terminators, Pull Irons
1
CS1117, SH.
Frame & Cover Assembly - Full Traffic, 3'-0"x5'-0" Primary Splice Box
1
CS1118, SH.
4'-0"x6'-6" Primary Electrical Vault - Dimensions, Conduit Terminators
1
CS1119, SH.
Frame & Cover Assembly, 4'-0"x6'-6" Primary Electric Vault
1
CS1120, SH.
4'-6"x8'-6" Primary Electric Vault - Dimensions, Conduit Terminators
1
CS1121, SH.
Frame & Cover Assembly - Full Traffic, 4'-6"x8'-6" and 6'-0"x12'-0" Electric Vaults
1
CS1122, SH.
6'-0"x12'-0" Primary Electrical Vault - Dimensions, Conduit Terminators
1-2
CS1126, SH. Aluminum Quick Release Cover Assembly - Incidental Traffic Primary Splice Box (Dimension
1-2 Table, Details A/B/C)
CS1132, SH. 200-Amp Sectionalizing Enclosures for 3'x5' Vaults - Pad/Cover Details, Angled Frame,
1-5 Enclosure Views, Clearance Plan
CS1134, SH. 3'x5' Flush-Mount Vault Cover Retrofit - Installation Details and BOM (Madruga REDDING-
1 ALUM 3660, E792.09)
CS1135, SH.
200-Amp Sectionalizing Enclosures for 4E Boxes - Pad/Cabinet Details, Clearance Plan
1-4