- County
- FLOYD
- Bid Order
- 016
- Enriched
- Yes
- Projects
- HDP-C034(117)--6B-34
- Proposal Id
- 34-C034-117
- Letting Date
- Nov 17, 2026
- List Url Hint
- ia.iowadot.gov/contracts/biddocuments
- Package Text
- 10/14/2026 9:27 AM
CONTRACTS AND SPECIFICATIONS BUREAU
Proposal
Proposal ID: 34-C034-117 Letting Date: November 17, 2026
Call Order: 016
Proposal Work Type: BRIDGE REPLACEMENT - PPCB
DBE Goal: 0.0%
Contracting Authority: FLOYD COUNTY
Proposal Guaranty: $125,000.00
This proposal includes the following project(s):
Project Number: HDP-C034(117)--6B-34 County: FLOYD
Project Work Type: BRIDGE REPLACEMENT - PPCB Route: B33
Location: On B 33, Over LITTLE CEDAR RIVER, S16 T96N R15W
Road System: FARM TO MARKET ROAD
Federal Aid - Wages: Federal Aid - Predetermined Wages are in Effect
Contracts and Specifications Bureau
10/14/2026 9:27 AM
Contract Time
Proposal ID: 34-C034-117 Call Order: 016 Letting Date: November 17, 2026
Site ID Site Details Liquidated
Damages
00 Late Start Date 04/01/2027 120 WORK DAYS $1,000.00
.
(*) - Indicates Cost Plus Time Site. See Schedule of Items for Cost Per Unit
Contracts and Specifications Bureau
10/14/2026 9:27 AM
Proposal ID: 34-C034-117 Call Order: 016 Letting Date: November 17, 2026
Notes
Notes :
There are no notes for this proposal.
Contracts and Specifications Bureau
10/14/2026 9:27 AM
Proposal Specifications List
Proposal ID: 34-C034-117 Call Order: 016 Letting Date: November 17, 2026
Note Description
001.2023 *** STANDARD SPECIFICATIONS -- SERIES 2023 ***
The Iowa Department of Transportation STANDARD SPECIFICATIONS FOR
HIGHWAY AND BRIDGE CONSTRUCTION, SERIES 2023, plus applicable General
Supplemental Specifications, Developmental Specifications, Supplemental
Specifications AND Special Provisions shall apply to construction work on this contract.
Contracts and Specifications Bureau
10/14/2026 9:27 AM
Proposal Specifications List
Proposal ID: 34-C034-117 Call Order: 016 Letting Date: November 17, 2026
Note Description
005.1107.02 *** Revisions to Article 1107.02 ***
Article 1107.02, Insurance, is amended by the following modifications and additions.
This proposal note becomes null and void January 1, 2027.
A. It shall be the Contractor's responsibility to have liability insurance covering all
of the construction operations incident to contract completion and the Contractor must
have on file with the Contracting Authority a current "Certificate of Insurance" prior to
award of contract. The certificate shall identify the insurance company firm name and
address, Contractor firm name, policy period, type of policy, limits of coverage, and
scope of work covered (single contract or statewide). This requirement shall apply with
equal force, whether the work is performed by persons employed directly by the
Contractor including a subcontractor, persons employed by a subcontractor, or by an
independent contractor.
B. In addition to the above, the Contracting Authority shall be included as an
insured party, or a separate owner's protective policy shall be filed showing the
Contracting Authority as an insured party.
C. The liability insurance shall be written by an insurance company (or
companies) qualified to do business in Iowa. For independent contractors engaged
solely in the transportation of materials, the minimum coverage provided by such
insurance shall be not less than that required by Chapter 325A, Code of Iowa, for such
truck operators or contract carriers as defined therein. For all other contractors,
subcontractors, independent contractors, and the Contracting Authority, the minimum
coverage by such insurance shall be as follows:
General Liability, Including: BODILY INJURY
Independent Contractors $500,000 Each Occurrence
Contractual Liability, $500,000 Aggregate
Products and Completed PROPERTY DAMAGE
Operations $250,000 Each Occurrence
$250,000 Aggregate
or
BODILY INJURY AND PROPERTY DAMAGE
- COMBINED SINGLE LIMIT*
$750,000 Each Occurrence
$750,000 Aggregate
*A comprehensive Catastrophe Liability Policy (Umbrella) can be used to aid in
achieving the minimum required limits.
Contracts and Specifications Bureau
10/14/2026 9:27 AM
Proposal Specifications List
Proposal ID: 34-C034-117 Call Order: 016 Letting Date: November 17, 2026
Note Description
*A comprehensive Catastrophe Liability Policy (Umbrella) can be used to aid in
achieving the minimum required limits.
D. Failure on the part of the Contractor to comply with the requirements of this
article will be considered sufficient cause to suspend the work, withhold estimates, and
to deny the Contractor from receiving further contract awards, as provided in Article
1103.01.
410.11 *** STORM WATER POLLUTION PREVENTION PLAN ***
A Storm Water Pollution Prevention Plan has been developed by the Contracting
Authority for one or more projects on this contract. See the project plans (or other
contract document) for specific Storm Water Pollution Prevention Plan details.
500.07.2026 *** WINTER WORK ***
Winter Work will be allowed during the winter 2026/2027. No working days will be
charged between November 15, 2026 and April 1, 2027.
500.2027 *** NO WINTER FREE TIME ***
The free time allowed between November 15 and April 1 will not be permitted on this
project during the winter of 2027-2028. The Contractor shall work during the winter on
all working days as defined in article 1101.03 'working day'.
DS-23091 DEVELOPMENTAL SPECIFICATIONS FOR STRUCTURAL CONCRETE (4500 PSI
OR GREATER)
FHWA-1273.09 FHWA-1273: REQUIRED CONTRACT PROVISIONS FEDERAL-AID
CONSTRUCTION CONTRACTS -- REVISED OCTOBER 23, 2023
23 U.S.C. 133(i) requires application of Davis Bacon predetermined wages on certain
projects on roads functionally classified as a local road or a rural minor collector. This
supersedes the applicability described in FHWA-1273 Section IV.
GS-23007 GENERAL SUPPLEMENTAL SPECIFICATIONS FOR HIGHWAY AND BRIDGE
CONSTRUCTION, OCTOBER 20, 2026 RELEASE
Contracts and Specifications Bureau
10/14/2026 9:27 AM
Proposal Specifications List
Proposal ID: 34-C034-117 Call Order: 016 Letting Date: November 17, 2026
Note Description
IA26-28.4A PREDETERMINED WAGE RATE - GENERAL DECISION NUMBER IA20260028
FOR HEAVY AND HIGHWAY CONSTRUCTION -- STATEWIDE (EXCEPT SCOTT
COUNTY)
Note: The Contractor shall review the contract documents and
is responsible for identifying which zone(s), as defined
in the Predetermined Wage Rate specification, apply to
the work on the contract.
Contracts and Specifications Bureau
10/14/2026 9:27 AM
Proposal Schedule of Items
Proposal ID: 34-C034-117 Call Order: 016 Letting Date: November 17, 2026
SECTION: 0001
ITEMS FOR A 299'-0 X 30'-0 PRETENSIONED PRESTRESSED CONCRETE BEAM BRIDGE
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0010 2101-0850001 0.600
CLEARING AND GRUBBING ACRE _________._____ _________._____
0020 2102-2710070 30.000
EXCAVATION, CLASS 10, ROADWAY
AND BORROW
CY _________._____ _________._____
0030 2104-2710020 7,400.000
EXCAVATION, CLASS 10, CHANNEL CY _________._____ _________._____
0040 2105-8425015 1,500.000
TOPSOIL, STRIP, SALVAGE AND
SPREAD
CY _________._____ _________._____
0050 2312-8260051 180.000
GRANULAR SURFACING ON ROAD,
CLASS A CRUSHED STONE
TON _________._____ _________._____
0060 2401-6745625
REMOVAL OF EXISTING BRIDGE LUMP SUM LUMP SUM _________._____
0070 2402-2720000 230.000
EXCAVATION, CLASS 20 CY _________._____ _________._____
0080 2402-2721000 227.000
EXCAVATION, CLASS 21 CY _________._____ _________._____
0090 2403-0100010 178.600
STRUCTURAL CONCRETE (BRIDGE) CY _________._____ _________._____
0100 2403-0100030 396.800
STRUCTURAL CONCRETE 4500 PSI
OR GREATER, AS SPECIFIED
CY _________._____ _________._____
0110 2404-7775000 29,262.000
REINFORCING STEEL LB _________._____ _________._____
0120 2404-7775005 115,223.000
REINFORCING STEEL, EPOXY
COATED
LB _________._____ _________._____
Contracts and Specifications Bureau
10/14/2026 9:27 AM
Proposal Schedule of Items
Proposal ID: 34-C034-117 Call Order: 016 Letting Date: November 17, 2026
SECTION: 0001
ITEMS FOR A 299'-0 X 30'-0 PRETENSIONED PRESTRESSED CONCRETE BEAM BRIDGE
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0130 2407-0563090 8.000
BEAMS, PRETENSIONED
PRESTRESSED CONCRETE, BTC90
EACH _________._____ _________._____
0140 2407-0563115 4.000
BEAMS, PRETENSIONED
PRESTRESSED CONCRETE, BTC115
EACH _________._____ _________._____
0150 2408-7800000 3,076.000
STRUCTURAL STEEL LB _________._____ _________._____
0160 2414-6424124 652.900
CONCRETE OPEN RAILING, TL-4 LF _________._____ _________._____
0170 2501-0201057 2,030.000
PILES, STEEL, HP 10 X 57 LF _________._____ _________._____
0180 2501-6335010 140.000
PREBORED HOLES LF _________._____ _________._____
0190 2505-4008410 4.000
STEEL BEAM GUARDRAIL BARRIER
TRANSITION SECTION, BA-201
EACH _________._____ _________._____
0200 2505-4021010 4.000
STEEL BEAM GUARDRAIL END
ANCHOR, BOLTED
EACH _________._____ _________._____
0210 2505-4021710 4.000
STEEL BEAM GUARDRAIL TANGENT
END TERMINAL, LS-625
EACH _________._____ _________._____
0220 2507-2638650 58.000
BRIDGE WING ARMORING - EROSION
STONE
SY _________._____ _________._____
0230 2507-3250005 2,500.000
ENGINEERING FABRIC SY _________._____ _________._____
0240 2507-6800061 1,400.000
REVETMENT, CLASS E TON _________._____ _________._____
Contracts and Specifications Bureau
10/14/2026 9:27 AM
Proposal Schedule of Items
Proposal ID: 34-C034-117 Call Order: 016 Letting Date: November 17, 2026
SECTION: 0001
ITEMS FOR A 299'-0 X 30'-0 PRETENSIONED PRESTRESSED CONCRETE BEAM BRIDGE
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0250 2507-6875002 150.000
REVETMENT, REMOVE AND REPLACE CY _________._____ _________._____
0260 2526-8285020
CONSTRUCTION SURVEY, CONTROL
POINT SURVEY
LUMP SUM LUMP SUM _________._____
0270 2526-8285030
CONSTRUCTION SURVEY, RIGHT OF
WAY
LUMP SUM LUMP SUM _________._____
0280 2526-8285040
CONSTRUCTION SURVEY, LOCATION
SURVEY
LUMP SUM LUMP SUM _________._____
0290 2528-2518000 2.000
SAFETY CLOSURE EACH _________._____ _________._____
0300 2528-8445110
TRAFFIC CONTROL LUMP SUM LUMP SUM _________._____
0310 2533-4980005
MOBILIZATION LUMP SUM LUMP SUM _________._____
0320 2601-2634100 3.900
MULCHING ACRE _________._____ _________._____
0330 2601-2636043 1.800
SEEDING AND FERTILIZING (RURAL) ACRE _________._____ _________._____
0340 2601-2642100 2.100
STABILIZING CROP - SEEDING AND
FERTILIZING
ACRE _________._____ _________._____
0350 2602-0000020 2,215.000
SILT FENCE LF _________._____ _________._____
0360 2602-0000101 2,215.000
MAINTENANCE OF SILT FENCE OR
SILT FENCE FOR DITCH CHECK
LF _________._____ _________._____
Contracts and Specifications Bureau
10/14/2026 9:27 AM
Proposal Schedule of Items
Proposal ID: 34-C034-117 Call Order: 016 Letting Date: November 17, 2026
SECTION: 0001
ITEMS FOR A 299'-0 X 30'-0 PRETENSIONED PRESTRESSED CONCRETE BEAM BRIDGE
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0370 2602-0000312 675.000
PERIMETER AND SLOPE SEDIMENT
CONTROL DEVICE, 12 IN. DIA.
LF _________._____ _________._____
0380 2602-0010010 1.000
MOBILIZATIONS, EROSION CONTROL EACH 600.00000 600.00
0390 2602-0010020 1.000
MOBILIZATIONS, EMERGENCY
EROSION CONTROL
EACH 1,200.00000 1,200.00
Section: 0001 Total: _________._____
Total Bid: _________._____
DS-23091
(Replaces DS-23018)
DEVELOPMENTAL SPECIFICATIONS
FOR
STRUCTURAL CONCRETE (4500 PSI OR GREATER)
Effective Date
July 21, 2026
THE STANDARD SPECIFICATIONS, SERIES 2023, ARE AMENDED BY THE FOLLOWING
MODIFICATIONS AND ADDITIONS. THESE ARE DEVELOPMENTAL SPECIFICATIONS AND THEY
SHALL PREVAIL OVER THOSE PUBLISHED IN THE STANDARD SPECIFICATIONS.
23091.01 DESCRIPTION.
A. Provide concrete mix design for structural elements designed with a minimum compressive
strength of 4500 psi or greater as shown in contract documents. Submit documentation for Class
C or HPC mixes meeting strength criteria or submit a new mix design.
B. Sections 2403 and 2412, and Division 41 of the Standard Specifications shall apply with the
following modifications.
23091.02 MATERIALS.
A. General.
1. Material shall meet quality requirements for respective items in Division 41 of the Standard
Specifications.
2. For compressive strength of 4500 psi up to 5000 psi, use a Class C or HPC mix design
based on past experience and compressive strength test results. The District Materials
Engineer may approve adjustments to ensure 28 day compressive strength requirements are
met.
3. For compressive strength of 5000 psi or greater, Ssubmit a mix design meeting the minimum
28 day strength requirements noted in the contract documents. Mix design requirements and
submittal are as follows:.
B. New Mix Design.
1. If Class C or HPC mix design from a concrete production facility cannot meet the strength
requirements, a new mix design shall be submitted. Proportions for a new mix design shall be
based upon saturated surface dry aggregates and shall produce a workable concrete mixture
meeting the following constraints:
DS-23091, Page 2 of 4
Table DS-23091.02-1: Mix Design Constraints
Cementitious Content, minimum 560 pounds per cubic yard, (absolute volume 0.106)
Water/Cementitious Ratio Maximum, 0.45
Target Air Content 6% (absolute volume 0.06)
2. Submit mix design to the District Materials Engineer for approval at least 60 calendar days
prior to placement. Base mix design on a trial batch and mix in the equipment used to batch
production concrete.
3. For a new mix design without previous experience and for which the concrete production
facility does not have field data for calculation of the standard deviation, the strength shall be
an average of three cylinders and shall meet the following strength requirement at 28 days as
shown below.
Table DS-23091.02-2: Strength Requirements
Specified minimum compressive
strength, ƒ’c psi Required average
compressive strength, ƒ’c
4500 to 5000 ƒ’c + 1200 psi
Greater than 5000 1.1 x ƒ’c + 700 psi
where, ƒ’c = specified compressive strength in contract documents
4. If the concrete production facility has test records for calculation of the standard deviation, the
required 28 day compressive strength shall be as shown in Article 23091.02, B. Concrete
shall represent materials, quality control procedures, conditions, materials and proportions
within test records, and the mix design represented shall not have been more restricted than
the proposed mix. Strength represented by test records shall be within 1000 psi of the
required compressive strength.
C. Mix Design with History of Strength.
1. A Class C mix, or other mixes with satisfactory record of strength 5000 psi or greater, may be
submitted in lieu of a new mix design. In accordance with ACI 301, a minimum of 30 tests for
28 day compressive strength shall be required as supporting documentation. The concrete
produced for this specification shall be produced in accordance with Section 2403 of the
Standard Specifications, representing material sources (fly ash source changes may be
included), and shall be batched and mixed in the same equipment used to produce the
concrete represented by the performance strength documentation. The standard deviation
shall be calculated from the 30 strength tests, except as provided below. The required 28 day
compressive strength, ƒ’c, shall be the greater of the following
ƒ’c + 1.34 s or
ƒ’c + 2.33 s – 500 psi
where: ƒ’c = specified compressive strength in contract documents
s = standard deviation.
2. When the concrete production facility has less than 30 tests (15 to 29), the standard deviation
shall be increased by the factor included in the following table:
Table DS-23091.02-3: Standard Deviation Factors
Number of tests*
Factors for increasing the
Standard Deviation
15 to 19 1.16
20 to 24 1.08
25 to 29 1.03
*Less than 15 tests shall require a new mix design.
DS-23091, Page 3 of 4
3. Submit modifications to an accepted concrete mix design to the Engineer for review and
approval prior to use.
23091.03 CONSTRUCTION.
A. Trial Batch Concrete.
1. A trial batch will be required for any new mix design or any mix design with a history of
strength without past experience on Interstate and primary projects. Approval will be based
on trial batch mix properties and submittal of a trial batch report. The District Materials
Engineer may waive the trial batch testing and perform testing on initial production
placements where lower strengths are required, provided the concrete production facility
produces acceptable test records for proposed mix demonstrating mix properties have been
achieved through previous trial batches.
2. The District Materials Engineer shall be given notice and mix proportions 7 calendar days
prior to this event. The trial batch shall be made at least 30 calendar days prior to planned
placement and shall be a minimum of 3 cubic yards in size. Establish batching sequence
during trial batch. Transport the concrete a distance comparable to the distance from the
ready mix plant to the placement site. Use concrete for testing representative of the entire
batch while having a slump within 1 inch of the maximum slump allowed, an intended in place
air content of 6% ± 1%, and a w/c ratio that will be typical in the placement. Perform the
following tests for each trial batch:
Table DS-23091.03-1: Trial Batch Tests
Specific Gravity of Each Individual Aggregate Materials I.M. 307
Gradation of Each Individual Aggregate Materials I.M. 302
Unit Weight of Plastic Concrete Materials I.M. 340
Slump of Plastic Concrete Materials I.M. 317
Air Content of Plastic Concrete Materials I.M. 318
3. Submit a trial batch mix design report and include the following:
Table DS-23091.03-2: Trial Batch Report
Cover Page Contractor and Producer Name Project Number
Date and Location of Trial Batch Date Submitted
Signature of Contractor/Producer Representative
Material Source Information Brand, Type, and Source
Proportion Information Specific Gravity
Relative % of Each Individual Aggregate Design and As
Mixed Batch Weights (SSD) Design and As Mixed w/c Ratios
Mix Properties Unit Weight of Plastic Concrete Air Content of Plastic Concrete
Slump
Individual Compressive Strength results at 7 and 28 days
B. Production Concrete.
1. For compressive strength of 5000 psi or greater, Pprior to placing production concrete,
develop a strength maturity curve in accordance with Material I.M. 383 based on compressive
strength. Monitor unit being placed with a minimum of two probes. Forms may be removed
and concrete may be subjected to exterior loads once the maturity meets the required design
strength for the unit being placed. The Engineer remains responsible for determining if
sufficient strength has been achieved. Submit documentation to the Engineer prior to form
removal or loading.
2. Perform quality control testing of production concrete for strength to determine if production
DS-23091, Page 4 of 4
concrete meets the minimum required design strength. Cast, cure, and handle strength
samples according to Materials I.M. 315 using a PCC Level I Concrete Field Testing
Technician. At the site ensure cylinders are cured properly with wet burlap and plastic. Do not
move cylinders for 16 hours and ensure they remain at the site for a maximum of 1 calendar
day before being transported to a certified laboratory for final curing and testing. Cast one
random set of three strength samples in 4 inch by 8 inch cylinder molds for each pier,
abutment, and deck with required design strength of 4500 psi or higher. Document slump, air
content, and w/c ratio (adjusted for all water) of the concrete for the cylinders cast.
3. Test strength samples by a qualified lab in accordance with AASHTO T 22. Test three
cylinders for strength at 28 days.
4. Submit test results to the Engineer and the District Materials Engineer no later than 1 working
day after testing is completed. Submittal shall clearly indicate the project number, location,
Contractor, producer, structural element constructed, slump, air content, w/c ratio (adjusted
for all water), date sampled, date tested, break age, individual compressive strengths, and
average compressive strengths. Attach plant report for the placement to the submittal.
C. Failure to Comply.
According to ACI 318, strength is acceptable if the average compressive strength of three
cylinders meets the required compressive strength and no individual test falls below the required
compressive strength by more than 500 psi. When the average 28 day compressive strength
does not meet or exceed the specified strength, propose evaluation methods to determine the in-
place concrete strength. Submit the proposal to the Engineer for approval. Notify the Engineer 48
hours in advance of any sampling and testing and will witness the sampling and testing of the in-
place concrete. The Engineer will review the results with the Office of Bridges and Structure and
determine corrective action required. The Contractor shall be responsible for the cost of
evaluation and any corrective action required.
23091.04 METHOD OF MEASUREMENT.
The quantity of Structural Concrete 4500 psi or Greater, As Specified, in cubic yards, will be the quantity
shown in the contract documents.
23091.05 BASIS OF PAYMENT.
The Contractor will be paid the contract unit price for Structural Concrete 4500 psi or Greater, As
Specified per cubic yard. The cost for testing the production concrete shall be included in the contract unit
price for Structural Concrete 4500 psi or Greater, As Specified.
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