- County
- HUMBOLDT
- Bid Order
- 008
- Enriched
- Yes
- Projects
- BRF-169-7(049)--38-46
- Proposal Id
- 46-1697-049
- Letting Date
- Oct 20, 2026
- List Url Hint
- ia.iowadot.gov/contracts/biddocuments
- Package Text
- 9/8/2026 12:56 PM
CONTRACTS AND SPECIFICATIONS BUREAU
Proposal
Proposal ID: 46-1697-049 Letting Date: October 20, 2026
Call Order: 008
Proposal Work Type: RECONSTRUCTION - BRIDGE DECK REPLACEMENT
DBE Goal: 0.0%
Contracting Authority: IOWA DEPARTMENT OF TRANSPORTATION
Proposal Guaranty: $100,000.00
This proposal includes the following project(s):
Project Number: BRF-169-7(049)--38-46 County: HUMBOLDT
Project Work Type: RECONSTRUCTION - BRIDGE DECK
REPLACEMENT
Route: U.S. 169
Location: W Fork Des Moines River 0.6 mi S of IA 3 in Humboldt
Road System: PRIMARY ROAD (on NHS)
Federal Aid - Wages: Federal Aid - Predetermined Wages are in Effect
Contracts and Specifications Bureau
9/8/2026 12:56 PM
Contract Time
Proposal ID: 46-1697-049 Call Order: 008 Letting Date: October 20, 2026
Site ID Site Details Liquidated
Damages
00 Late Start Date 06/07/2027 95 WORK DAYS $1,000.00
.
(*) - Indicates Cost Plus Time Site. See Schedule of Items for Cost Per Unit
Contracts and Specifications Bureau
9/8/2026 12:56 PM
Proposal ID: 46-1697-049 Call Order: 008 Letting Date: October 20, 2026
Notes
Notes :
There are no notes for this proposal.
Contracts and Specifications Bureau
9/8/2026 12:56 PM
Proposal Specifications List
Proposal ID: 46-1697-049 Call Order: 008 Letting Date: October 20, 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
9/8/2026 12:56 PM
Proposal Specifications List
Proposal ID: 46-1697-049 Call Order: 008 Letting Date: October 20, 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
9/8/2026 12:56 PM
Proposal Specifications List
Proposal ID: 46-1697-049 Call Order: 008 Letting Date: October 20, 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.
500.01 *** WINTER WORK ***
The free time allowed between November 15 and April 1 will not be permitted on this
project. The Contractor shall work during the winter on all working days as defined in
Article 1101.03 'Working Day'.
DS-23011 DEVELOPMENTAL SPECIFICATIONS FOR FLOATING SILT CURTAIN
DS-23082 DEVELOPMENTAL SPECIFICATIONS FOR HIGH PERFORMANCE CONCRETE
FOR STRUCTURES
DS-23083 DEVELOPMENTAL SPECIFICATIONS FOR FIBER REINFORCEMENT FOR
STRUCTURAL CONCRETE
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
9/8/2026 12:56 PM
Proposal Specifications List
Proposal ID: 46-1697-049 Call Order: 008 Letting Date: October 20, 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.
*** Additional Requirement ***
Contracts where the Department is the Contracting Authority:
The Prime Contractor and each approved Subcontractor shall submit certified payrolls
weekly to the Project Engineer. Each Contractor shall use the AASHTOWare Project
Civil Rights and Labor (AWP CRL) software to electronically submit Certified Payroll
Reports. The Contractor shall list the craft for each employee covered by the
Predetermined Wage Rates. The Prime Contractor shall review and approve each
Subcontractor’s payroll within AWP CRL.
Contracts where the Department is not the Contracting Authority:
The Prime Contractor shall submit certified payrolls for itself and each approved
Subcontractor weekly to the Project Engineer. The Contractor may use the Iowa D.O.T.
Certified Payroll form or other approved form. The Contractor shall list the craft for
each employee covered by the Predetermined Wage Rates. The Prime Contractor
shall sign each of the Subcontractor's payrolls to acknowledge the submittal of the
Certified Payroll.
Contracts and Specifications Bureau
9/8/2026 12:56 PM
Proposal Schedule of Items
Proposal ID: 46-1697-049 Call Order: 008 Letting Date: October 20, 2026
SECTION: 0001
DESIGN NO. 0127; A 333'-0 x 56'-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 2104-2710020 298.100
EXCAVATION, CLASS 10, CHANNEL CY _________._____ _________._____
0020 2401-6750001
REMOVALS, AS PER PLAN LUMP SUM LUMP SUM _________._____
0030 2402-2720000 33.000
EXCAVATION, CLASS 20 CY _________._____ _________._____
0040 2403-0100010 13.200
STRUCTURAL CONCRETE (BRIDGE) CY _________._____ _________._____
0050 2403-1000005 527.200
FIBER REINFORCEMENT FOR
STRUCTURAL CONCRETE
CY _________._____ _________._____
0060 2403-1000010
TRIAL BATCH AND TEST PLACEMENT
(FIBER REINFORCED CONCRETE)
LUMP SUM LUMP SUM _________._____
0070 2403-7000210 527.200
HIGH PERFORMANCE STRUCTURAL
CONCRETE
CY _________._____ _________._____
0080 2404-7775005 186,551.000
REINFORCING STEEL, EPOXY
COATED
LB _________._____ _________._____
0090 2404-7775009 5,952.000
REINFORCING STEEL, STAINLESS
STEEL
LB _________._____ _________._____
0100 2414-6424110 720.100
CONCRETE BARRIER RAILING LF _________._____ _________._____
0110 2499-0800000 112.000
PAVING NOTCH REPLACEMENT LF _________._____ _________._____
0120 2499-2300001
DECK DRAINS LUMP SUM LUMP SUM _________._____
Contracts and Specifications Bureau
9/8/2026 12:56 PM
Proposal Schedule of Items
Proposal ID: 46-1697-049 Call Order: 008 Letting Date: October 20, 2026
SECTION: 0001
DESIGN NO. 0127; A 333'-0 x 56'-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 2507-3250005 531.900
ENGINEERING FABRIC SY _________._____ _________._____
0140 2507-6800061 437.700
REVETMENT, CLASS E TON _________._____ _________._____
0150 2520-3350015 1.000
FIELD OFFICE EACH _________._____ _________._____
0160 2526-8285040
CONSTRUCTION SURVEY, LOCATION
SURVEY
LUMP SUM LUMP SUM _________._____
0170 2533-4980005
MOBILIZATION LUMP SUM LUMP SUM _________._____
Section: 0001 Total: _________._____
Contracts and Specifications Bureau
9/8/2026 12:56 PM
Proposal Schedule of Items
Proposal ID: 46-1697-049 Call Order: 008 Letting Date: October 20, 2026
SECTION: 0002
ROADWAY ITEMS
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0180 2101-0850001 0.450
CLEARING AND GRUBBING ACRE _________._____ _________._____
0190 2102-2625000 78.000
EMBANKMENT-IN-PLACE CY _________._____ _________._____
0200 2102-2713090 58.500
EXCAVATION, CLASS 13, WASTE CY _________._____ _________._____
0210 2121-7425010 47.300
GRANULAR SHOULDERS, TYPE A TON _________._____ _________._____
0220 2123-7450000 4.600
SHOULDER CONSTRUCTION, EARTH STA _________._____ _________._____
0230 2214-5145154 122.400
PAVEMENT SCARIFICATION, PROFILE SY _________._____ _________._____
0240 2301-0690203 763.800
BRIDGE APPROACH, BR-203 SY _________._____ _________._____
0250 2412-0000100 2,859.300
LONGITUDINAL GROOVING IN
CONCRETE, BRIDGE DECK AND/OR
APPROACHES
SY _________._____ _________._____
0260 2505-4008120 288.500
REMOVAL OF STEEL BEAM
GUARDRAIL
LF _________._____ _________._____
0270 2505-4008300 50.000
STEEL BEAM GUARDRAIL LF _________._____ _________._____
0280 2505-4008415 4.000
STEEL BEAM GUARDRAIL BARRIER
TRANSITION SECTION, BA-209
EACH _________._____ _________._____
0290 2505-4021010 4.000
STEEL BEAM GUARDRAIL END
ANCHOR, BOLTED
EACH _________._____ _________._____
Contracts and Specifications Bureau
9/8/2026 12:56 PM
Proposal Schedule of Items
Proposal ID: 46-1697-049 Call Order: 008 Letting Date: October 20, 2026
SECTION: 0002
ROADWAY ITEMS
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0300 2505-4021720 2.000
STEEL BEAM GUARDRAIL TANGENT
END TERMINAL, BA-205
EACH _________._____ _________._____
0310 2505-4021721 2.000
STEEL BEAM GUARDRAIL FLARED
END TERMINAL, BA-206
EACH _________._____ _________._____
0320 2510-6745850 761.400
REMOVAL OF PAVEMENT SY _________._____ _________._____
0330 2527-9263209 12.320
PAINTED PAVEMENT MARKINGS,
WATERBORNE OR SOLVENT-BASED
STA _________._____ _________._____
0340 2527-9270112 12.320
GROOVES CUT FOR PAVEMENT
MARKINGS
STA _________._____ _________._____
0350 2528-2518000 2.000
SAFETY CLOSURE EACH _________._____ _________._____
0360 2528-8445110
TRAFFIC CONTROL LUMP SUM LUMP SUM _________._____
0370 2602-0000020 712.500
SILT FENCE LF _________._____ _________._____
0380 2602-0000071 356.250
REMOVAL OF SILT FENCE OR SILT
FENCE FOR DITCH CHECKS
LF _________._____ _________._____
0390 2602-0000101 71.250
MAINTENANCE OF SILT FENCE OR
SILT FENCE FOR DITCH CHECK
LF _________._____ _________._____
0400 2602-0000212 250.000
FLOATING SILT CURTAIN (HANGING) LF _________._____ _________._____
Contracts and Specifications Bureau
9/8/2026 12:56 PM
Proposal Schedule of Items
Proposal ID: 46-1697-049 Call Order: 008 Letting Date: October 20, 2026
SECTION: 0002
ROADWAY ITEMS
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0410 2602-0000240 125.000
MAINTENANCE OF FLOATING SILT
CURTAIN
LF _________._____ _________._____
0420 2602-0000500 52.000
OPEN-THROAT CURB INTAKE
SEDIMENT FILTER, EC-602
LF _________._____ _________._____
0430 2602-0000510 4.000
MAINTENANCE OF OPEN-THROAT
CURB INTAKE SEDIMENT FILTER
EACH _________._____ _________._____
0440 2602-0000520 4.000
REMOVAL OF OPEN-THROAT CURB
INTAKE SEDIMENT FILTER
EACH _________._____ _________._____
Section: 0002 Total: _________._____
Total Bid: _________._____
DS-23011
(New)
DEVELOPMENTAL SPECIFICATIONS
FOR
FLOATING SILT CURTAIN
Effective Date
October 17, 2023
THE STANDARD SPECIFICATIONS, SERIES 2023, ARE AMENDED BY THE FOLLOWING
MODIFICATIONS AND ADDITIONS. THESE ARE DEVELOPMENTAL SPECIFICATIONS AND THEY
PREVAIL OVER THOSE PUBLISHED IN THE STANDARD SPECIFICATIONS.
23011.01 DESCRIPTION.
Floating Silt Curtains are temporary control measures used for containing suspended sediment in an area
of open water. Open water is described as any perennial water course or water body with 6 inch (150
mm) or greater depth. Floating Silt Curtains consist of fabric fastened to a flotation carrier and weighted
along the bottom edge. Two types of Floating Silt Curtains may be utilized:
A. Floating Silt Curtain (Containment).
Floating Silt Curtain (Containment) is intended to capture all sediment entering the water during
construction activities and the sediment is to be removed with the floating silt curtain upon
completion of the work.
B. Floating Silt Curtain (Hanging).
Floating Silt Curtain (Hanging) is intended to create a static water area isolated from the water
course or water body. Sediment entering the static water area is isolated and settles out of
suspension within the area of the floating silt curtain.
23011.02 MATERIALS.
A. Floating Silt Curtains shall meet the following minimum requirements and manufacturer
recommendations:
Table DS-23011.02-1: Floating Silt Curtain Requirements
Property Value
Curtain Fabric Material Type Impermeable vinyl-coated nylon
Mass Per Square Yard 22 oz.
Grab Tensile Strength ASTM D 4632 * 500 lbs.
Flotation 8 inch diameter marine quality
expanded polystyrene
Net Buoyancy, Per Foot 20 lbs.
Top Load Carrying Components
Fabric plus 5/16 inch galvanized
steel cable 9100 lbs. minimum
break strength
Ballast, Lbs. Per Foot, Minimum 1.0 lbs./foot enclosed 5/16 inch
galvanized chain
Connection Between Sections Aluminum collar reinforced quick
disconnects
* Minimum average roll value.
DS-23011, Page 2 of 3
B. Design connecting devices to prevent silt from permeating through the connection and at
specified strength to prevent ripping out.
23011.03 CONSTRUCTION.
A. General.
1. Construct Floating Silt Curtain as shown in the contract documents and to the expected water
depth plus wave height.
2. On US Coast Guard regulated waters or other navigable waterways, furnish buoys to mark
the ends and special areas for visibility. Place buoys as required for navigational purposes.
3. Floating Silt Curtain shall be installed adjacent to planned work area prior to soil disturbance.
The curtain shall be installed along the complete work area which is planned to be disturbed
and to points 20 feet beyond the limits of the area of disturbance and tied into the existing soil
bank.
4. Floating Silt Curtain (Containment) installations will require both a containment floating silt
curtain and a hanging floating silt curtain. Install the two floating silt curtains as shown in the
contract documents with the containment silt curtain closest to shore and the hanging silt
curtain 10 feet outside the containment silt curtain.
5. Do not discharge water pumped from the work site into an area of unrestrained open water.
6. Control surface drainage prior to entry into the water by installation of appropriate erosion
control measures on land.
B. Floating Silt Curtain (Containment).
1. Install Floating Silt Curtain (hanging) prior to installation of Floating Silt curtain (Containment).
2. Shape water body soil bank to enable installation of Floating Silt Curtain (Containment) as
detailed in the contract documents.
3. Install Floating Silt Curtain (Containment).
4. Anchors shall include a chain having a minimum weight of 3.0 pounds per yard and anchor
weights as needed to hold curtain down.
5. Inspect the containment floating silt curtain after heavy winds or major rain storms (1 inch) to
check for damage and depth of silt on the bottom of the silt curtain. If 2 inches or more of silt
is present on top of the silt curtain, remove the silt curtain and silt as described below and
reinstall floating silt curtain.
6. Upon completion of the work or when clean-out of containment silt curtain is required, remove
containment silt curtain. Dispose of collected silt offsite at an upland, non-wetland location or
as approved by the Engineer. Following removal of containment curtain, the hanging curtain
shall remain in place for a minimum of 48 hours after which it can be removed, provided all
work in the area being protected is completed.
C. Floating Silt Curtain (Hanging).
1. Anchors shall be a minimum of 60 pounds and located at a maximum spacing of 50 feet
along curtain.
DS-23011, Page 3 of 3
2. Hanging silt curtain shall remain in place for a minimum of 48 hours after completion of work
activity to allow suspended sediment to settle out after which time the silt curtain can be
removed. Remove curtain in a manner that will prevent re-suspension of silt into the water.
23011.04 METHOD OF MEASUREMENT.
A. Floating Silt Curtain, of the type specified, will be measured by length in feet furnished and
installed.
B. Clean-out of Floating Silt Curtain (Containment) will be measured by length in feet removed,
cleaned, and reinstalled (if necessary) each time cleaning is required.
C. Maintenance of Floating Silt Curtain, when directed by the Engineer, will be measured in feet for
sections of curtain requiring maintenance (typically 50 foot sections).
23011.05 BASIS OF PAYMENT.
A. Payment for Floating Silt Curtain (Hanging) will be the contract unit price for the length in feet of
hanging silt curtain furnished and installed. Payment is full compensation for labor, equipment,
and materials necessary to construct, and remove hanging silt curtain. Upon satisfactory
installation of hanging silt curtain, the Engineer may authorize partial payment not exceeding 80%
of the quantity placed. Remaining quantity will be paid after Floating Silt Curtain is removed.
B. Payment for Floating Silt Curtain (Containment) will be the contract unit price for the length in feet
of containment silt curtain furnished and installed. Payment is full compensation for labor,
equipment, and materials necessary to construct containment silt curtain.
C. Payment for Clean-out of Floating Silt Curtain (Containment) will be the contract unit price for the
length in feet of the Containment Silt Curtain removed each time cleaning is required. Payment is
full compensation for labor and equipment necessary to remove and clean containment silt
curtain, remove and dispose of collected silt, and reinstall containment silt curtain (if necessary).
Clean-out of Floating Silt Curtain (Containment) will be paid to remove the containment silt curtain
at the completion of the project.
D. Payment for Maintenance of Floating Silt Curtain will be at the contract unit price per foot of
floating silt curtain requiring maintenance, as directed by the Engineer. Payment is full
compensation for labor, equipment, and materials necessary to maintain Floating Silt Curtain
(Hanging and Containment). Maintenance includes repairs and realignment of existing curtain
and labor cost when the Floating Silt Curtain is replaced due to loss or destruction. When Floating
Silt Curtain is lost or destroyed, Contactor will receive additional payment based on the material
invoice cost of the replacement curtain.
DS- 23083
(Replaces DS-23076)
DEVELOPMENTAL SPECIFICATIONS
FOR
FIBER REINFORCEMENT FOR STRUCTURAL CONCRETE
Effective Date
January 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.
23083.01 DESCRIPTION.
A. Fiber reinforcement shall be incorporated in the locations and quantities of concrete designated in
the contract documents. Work types for structures which may be designated for incorporation of
fiber reinforcement could include bridge substructures, bridge decks, bridge deck overlays,
structural repairs, or other applications.
B. Use approved products and proportions of synthetic macro fiber and incorporate into the concrete
mix in accordance with these developmental specifications. The purpose of the fiber
reinforcement is to mitigate risk and effects of cracking and improve the durability of the concrete.
C. Apply Section 2403 of the Standard Specifications, subject to the modifications herein. When
relevant to the work type, also apply Sections 2412 or 2413 of the Standard Specifications,
subject to the modifications herein.
D. The contract documents may designate incorporation of fiber reinforcement into concrete mixes
governed under other developmental specifications. Examples could include High Performance
Concrete for Structures, or Structural Concrete (4500 psi or Greater). Meet the provisions of
applied developmental specifications concurrently. The provisions for concrete slump specified in
DS-23083.02, A, 3, shall prevail over provisions for concrete slump specified in other applied
developmental specifications.
23083.02 MATERIALS.
A. General.
1. Fibers shall be incorporated as an admixture to the concrete mix. Adjustments to the base
volumetric proportions of mix constituents are not required to compensate for the volumetric
proportion of fiber admixture.
2. Select a concrete mix which satisfies all applicable requirements and achieves appropriate
workability upon incorporation of fibers at the required dosage rate.
DS-23083, Page 2 of 5
3. Material properties of the fiber reinforced concrete (FRC) shall comply with the material
properties for concrete specified elsewhere in the contract documents, except the following
relaxations are permissible for FRC slump:
a. Bridge Decks.
When mid-range water reducer is used with Class C or Class HPC-D mix, target slump
may be increased to 5 inches, allowing a maximum of 6 inches as a tolerance.
Commence testing for slump within 0 to 4 minutes after the FRC is discharged.
b. Bridge Deck Overlays.
When mid-range water reducer is used with Class HPC-O mix, target slump may be
increased to 5 inches, allowing a maximum of 6 inches as a tolerance. Commence
testing for slump within 0 to 4 minutes after the FRC is discharged.
B. Fiber.
1. General.
Fiber reinforcement shall consist of macro fibers.
2. Macro Fiber.
a. Use product approved in accordance with Materials I.M. 491.27 Appendix B.
b. Dose macro fiber at a minimum rate of 4 pounds per cubic yard of concrete.
C. Documentation and Acceptance of Fiber Reinforced Concrete.
1. FRC shall comply with ASTM C1116, Type III. Furnish documentary evidence by the fiber
manufacturer demonstrating satisfactory performance history and compliance with ASTM
C1116, Type III for fiber product(s) used.
2. A trial batch and test placement will be required in accordance with DS-23083.03, A.
Acceptance of the FRC mix shall be contingent on successful completion of the trial batch and
test placement. At a minimum, the trial batch and test placement must demonstrate all the
following:
• Compliance with the contract documents and specified material properties.
• Acceptable workability.
• Batching and finishing processes representative of the proposed means and methods of
construction for production work.
• No detrimental effects associated with mix inconsistency, mix segregation, bleeding, or
balling of fibers.
23083.03 CONSTRUCTION.
A. Trial Batch and Test Placement.
1. General.
a. Provide the Engineer notice, mix proportions, and scheduled date at least 7 calendar days
prior to trial batch and test placement. Do not proceed with trial batch and test placement
without authorization of the Engineer.
b. Conduct trial batch and test placement at least 7 calendar days prior to planned
placement of production FRC.
c. Do not place production FRC until the trial batch and test placement have been accepted
by the Engineer. Trial batches or test placements which fail to meet acceptance criteria
must be repeated at no additional cost to the Contracting Authority, following appropriate
material and/or procedure modifications by the Contractor.
d. After acceptance of the trial batch and test placement, any contractor-initiated changes to
the mix design, fiber product or dosage, mix batching process, and/or methods of
installation shall constitute basis for requiring a new trial batch and test placement at no
additional cost to the Contracting Authority.
DS-23083, Page 3 of 5
e. The Engineer may waive the trial batch and test placement on the basis of past
successful placement of the same combination of mix design, fiber product and dosage,
mix batching process (including key personnel), and installation process (including key
personnel).
2. Trial Batch.
a. Identify dedicated batching personnel for FRC.
b. Establish and demonstrate the sequence of constituent material introduction during the
trial batch. Ensure the fiber manufacturer’s technical representative is available for advice
and guidance regarding fiber inclusion into the mix, as needed.
c. Batch the trial batch concrete for slump within 1 inch of the maximum slump permitted, air
content of 6% +/- 1% intended target for the production placement ± 2%, and w/c ratio
typical of the production FRC to be placed. Include any other admixtures proposed for
use in the production FRC, including but not limited to water reducers, viscosity modifiers
and set retarders as applicable, at their respective intended production dosage rates.
d. Sample and test the trial batch placement for the following:
• Materials I.M. 340 – Unit Weight of Plastic Concrete.
• Materials I.M. 318 – Air Content of Plastic Concrete.
• Materials I.M. 317 – Slump of Plastic Concrete
• Visual Stability of Plastic Concrete – Following slump test performed in accordance
with Materials I.M. 317, leave slumped concrete undisturbed on the test board for 3
minutes and observe for mortar ring or bleed water at the base of the concrete.
Report presence, description, and size of any mortar ring and/or bleed water halo.
e. Trial batch volume shall be in accordance with the following:
• Bridge Decks and Deck Overlays: 6 cubic yards, minimum.
• Non-Deck Applications; 3 cubic yards, minimum.
3. Test Placement.
a. General.
1) Utilize the trial batch concrete to conduct a test placement. Subject to the
requirements herein, the test placement may not require use of the full volume of trial
batch concrete.
2) Test placement shall be made within side/edge forms, on sufficiently rigid subbase, to
allow representative demonstration of the placement and finishing methods proposed
for production work. Use a durable, impermeable separation barrier between the
subbase and test placement.
3) Place, consolidate and finish the concrete within the test placement using methods
that are representative of the methods to be used with the production concrete. For
production methods deemed impractical to duplicate during the test pour (e.g. pump
placement, self-propelled machine finishing), substitute methods may be used
subject to the Engineer’s approval, provided the substitute methods allow full
evaluation of any/all mix properties that may affect the actual production methods.
Evaluate workability, finishability, and general suitability of the mix for production use.
4) Following completion of the test placement, deposit any remaining trial batch
concrete to an open container or other accessible location to allow further inspection
for potential mix inconsistency, mix segregation, bleeding, balling of fibers, or other
detrimental properties. Do not obscure or dispose of the trial batch or test placement
concrete until a minimum time of 2 hours has elapsed after completion of the test
placement, or until authorized by the Engineer, whichever comes first.
b. Test Placement for Bridge Decks and Deck Overlays.
1) Simulate the general placement conditions for production concrete. Conduct the test
placement in open air, during weather generally consistent with the anticipated
conditions during production placement.
2) Following trial batching, suspend the test placement for a period of time
approximately equal to the anticipated delivery time for production concrete. During
this suspension, maintain the concrete in a state of agitation generally representative
DS-23083, Page 4 of 5
of the anticipated delivery conditions for production concrete.
3) The area of the test placement shall be a minimum of 200 square feet. The least
horizontal dimension of the test placement shall be a minimum of 12 feet. Nominal
thickness of the test placement shall match as close as practical the nominal
thickness of the production concrete, except nominal thickness of the test placement
need not exceed 9 inches.
4) Test placements for bridge decks shall include reinforcing steel, oriented in two mats
of two layers each (longitudinal and transverse). Reinforcing steel shall have similar
size, spacing, top clearance to top mat and bottom clearance to bottom mat, as
shown in the contract documents for the production work. No reinforcing steel is
required for test placements for bridge deck overlays.
c. Test Placement for Non-Deck Applications.
Deposit the trial batch concrete into formwork with minimum dimensions of at least 3 feet
length by 3 feet width by 3 feet depth. Alternate formwork dimensions may be permitted,
subject to approval by the Engineer.
B. Production FRC.
1. Batching.
a. Production batching methods, equipment, sequence and personnel shall match those
used for the approved trial batch.
b. Introduce fibers into the mix in accordance with the fiber manufacturer’s
recommendations, unless otherwise approved by the Engineer.
c. Mix FRC in accordance with the Standard Specifications applicable for concrete, unless
otherwise approved by the Engineer.
d. Ensure uniform distribution and random orientation of fibers throughout the concrete.
2. Placing, Consolidating, Finishing and Curing.
Comply with provisions for concrete specified in Sections 2403, 2412, and 2413 of the
Standard Specifications, as well as other applied developmental specifications, as applicable
to the contract and the work type.
23083.04 METHOD OF MEASUREMENT.
A. Fiber Reinforcement for Structural Concrete.
1. Fiber reinforcement for structural concrete shall be measured and paid separate from the
concrete the fiber reinforcement is incorporated in. Measurement and payment for the
concrete shall be as specified elsewhere in the contract documents.
2. The unit of measurement for Fiber Reinforcement for Structural Concrete shall match the unit
of measurement applicable to the concrete the fiber reinforcement is incorporated in (ex. per
square yard or per cubic yard).
3. The quantity of Fiber Reinforcement for Structural Concrete will be the quantity shown in the
contract documents. The quantity of Fiber Reinforcement for Structural Concrete shall match
the quantity of the concrete the fiber reinforcement is incorporated in.
B. Trial Batch and Test Placement.
Trial Batch and Test Placement is a combined lump sum item.
23083.05 BASIS OF PAYMENT.
A. Fiber Reinforcement for Structural Concrete.
Payment with be at the contract unit price for Fiber Reinforcement for Structural Concrete.
Payment includes all cost of furnishing and incorporating fiber reinforcement, at the specified
DS-23083, Page 5 of 5
dosage rate, per applicable unit of concrete.
B. Trial Batch and Test Placement.
Payment will be at the lump sum contract unit price for the combined bid item Trial Batch and
Test Placement. Payment includes full compensation for Trial Batch and Test Placement,
inclusive of all materials and labor for furnishing, forming, placing, finishing, and evaluating.
- Package Files
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- 20OCT008\Prop\DS-23011.pdf
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- 20OCT008\Prop\DS-23083.pdf
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- 20OCT008\Prop\estprop008.pdf
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