- County
- PLYMOUTH
- Bid Order
- 034
- Enriched
- Yes
- Projects
- BRF-003-1(112)--38-75
- Proposal Id
- 75-0031-112
- Letting Date
- Nov 17, 2026
- List Url Hint
- ia.iowadot.gov/contracts/biddocuments
- Package Text
- 10/14/2026 9:31 AM
CONTRACTS AND SPECIFICATIONS BUREAU
Proposal
Proposal ID: 75-0031-112 Letting Date: November 17, 2026
Call Order: 034
Proposal Work Type: BRIDGE DECK OVERLAY
DBE Goal: 0.0%
Contracting Authority: IOWA DEPARTMENT OF TRANSPORTATION
Proposal Guaranty: $62,500.00
This proposal includes the following project(s):
Project Number: BRF-003-1(112)--38-75 County: PLYMOUTH
Project Work Type: BRIDGE DECK OVERLAY Route: IOWA 3
Location: Floyd River 1.0 mi E of US 75 in Le Mars
Road System: PRIMARY ROAD (on NHS)
Federal Aid - Wages: Federal Aid - Predetermined Wages are in Effect
Contracts and Specifications Bureau
10/14/2026 9:31 AM
The following sections are alternates:
Contract Time
Proposal ID: 75-0031-112 Call Order: 034 Letting Date: November 17, 2026
Site ID Site Details Liquidated
Damages
00 Late Start Date 07/05/2027 50 WORK DAYS $1,000.00
.
(*) - Indicates Cost Plus Time Site. See Schedule of Items for Cost Per Unit
0002 AA 1 DESIGN NO. 0128; ALTERNATE ‘AA’ OPTION 1:
CLASS O PCC, BID THIS SECTION IF
ALTERNATE ‘AA’ OPTION 1 IS CHOSEN
0003 AA 2 DESIGN NO. 0128; ALTERNATE ‘AA’ OPTION 2:
CLASS HPC- O PCC, BID THIS SECTION IF
ALTERNATE ‘AA’ OPTION 2 IS CHOSEN
Contracts and Specifications Bureau
10/14/2026 9:31 AM
Proposal ID: 75-0031-112 Call Order: 034 Letting Date: November 17, 2026
Notes
Notes :
There are no notes for this proposal.
Contracts and Specifications Bureau
10/14/2026 9:31 AM
Proposal Specifications List
Proposal ID: 75-0031-112 Call Order: 034 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 9:31 AM
Proposal Specifications List
Proposal ID: 75-0031-112 Call Order: 034 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 9:31 AM
Proposal Specifications List
Proposal ID: 75-0031-112 Call Order: 034 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.
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-23032 DEVELOPMENTAL SPECIFICATIONS FOR ELECTRONIC TICKETING
DS-23079 DEVELOPMENTAL SPECIFICATIONS FOR PREFORMED THERMOPLASTIC
PAVEMENT MARKINGS
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
10/14/2026 9:31 AM
Proposal Specifications List
Proposal ID: 75-0031-112 Call Order: 034 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 9:31 AM
Proposal Schedule of Items
Proposal ID: 75-0031-112 Call Order: 034 Letting Date: November 17, 2026
SECTION: 0001
DESIGN NO. 0128; 343'-6 X 44'-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 2401-6750001
REMOVALS, AS PER PLAN LUMP SUM LUMP SUM _________._____
0020 2402-2720000 41.000
EXCAVATION, CLASS 20 CY _________._____ _________._____
0030 2403-0100000 61.100
STRUCTURAL CONCRETE
(MISCELLANEOUS)
CY _________._____ _________._____
0040 2404-7775005 5,645.000
REINFORCING STEEL, EPOXY
COATED
LB _________._____ _________._____
0050 2413-0698074 55.500
DECK REPAIR, CLASS A SY _________._____ _________._____
0060 2426-6772013 4.000
REPAIR BEAM ENDS EACH _________._____ _________._____
0070 2501-8400172
TEMPORARY SHORING LUMP SUM LUMP SUM _________._____
0080 2508-0970000
CONTAINMENT LUMP SUM LUMP SUM _________._____
0090 2508-0991000
PAINTING OF STRUCTURAL STEEL LUMP SUM LUMP SUM _________._____
0100 2533-4980005
MOBILIZATION LUMP SUM LUMP SUM _________._____
Section: 0001 Total: _________._____
Contracts and Specifications Bureau
10/14/2026 9:31 AM
Proposal Schedule of Items
Proposal ID: 75-0031-112 Call Order: 034 Letting Date: November 17, 2026
SECTION: 0002
DESIGN NO. 0128; ALTERNATE ‘AA’ OPTION 1: CLASS O PCC, BID THIS SECTION IF ALTERNATE ‘AA’ OPTION 1
IS CHOSEN
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0110 2413-0698066 1,666.300
DECK OVERLAY (CLASS O PCC) SY _________._____ _________._____
Section: 0002 Total: _________._____
SECTION: 0003
DESIGN NO. 0128; ALTERNATE ‘AA’ OPTION 2: CLASS HPC- O PCC, BID THIS SECTION IF ALTERNATE ‘AA’
OPTION 2 IS CHOSEN
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0120 2403-1000010
TRIAL BATCH AND TEST PLACEMENT
(FIBER REINFORCED CONCRETE)
LUMP SUM LUMP SUM _________._____
0130 2413-0698067 1,666.300
DECK OVERLAY (CLASS HPC-O PCC) SY _________._____ _________._____
0140 2413-1000005 1,666.300
FIBER REINFORCEMENT FOR
CONCRETE REPAIR/OVERLAY
SY _________._____ _________._____
Section: 0003 Total: _________._____
Contracts and Specifications Bureau
10/14/2026 9:31 AM
Proposal Schedule of Items
Proposal ID: 75-0031-112 Call Order: 034 Letting Date: November 17, 2026
SECTION: 0004
ROADWAY ITEMS
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0150 2102-0425070 349.200
SPECIAL BACKFILL TON _________._____ _________._____
0160 2102-2625000 109.300
EMBANKMENT-IN-PLACE CY _________._____ _________._____
0170 2102-2713090 496.100
EXCAVATION, CLASS 13, WASTE CY _________._____ _________._____
0180 2105-8425015 62.500
TOPSOIL, STRIP, SALVAGE AND
SPREAD
CY _________._____ _________._____
0190 2115-0100000 145.200
MODIFIED SUBBASE CY _________._____ _________._____
0200 2121-7425020 28.200
GRANULAR SHOULDERS, TYPE B TON _________._____ _________._____
0210 2122-5190008 163.100
PAVED SHOULDER, P.C. CONCRETE,
8 IN.
SY _________._____ _________._____
0220 2122-5190110 53.300
PAVED SHOULDER, P.C. CONCRETE,
11 IN.
SY _________._____ _________._____
0230 2122-7450080 792.300
SHOULDER STRENGTHENING,
OPTIONAL HOT MIX ASPHALT
MIXTURE OR PORTLAND CEMENT
CONCRETE, 8 IN.
SY _________._____ _________._____
0240 2123-7450000 9.870
SHOULDER CONSTRUCTION, EARTH STA _________._____ _________._____
0250 2301-0690203 726.400
BRIDGE APPROACH, BR-203 SY _________._____ _________._____
Contracts and Specifications Bureau
10/14/2026 9:31 AM
Proposal Schedule of Items
Proposal ID: 75-0031-112 Call Order: 034 Letting Date: November 17, 2026
SECTION: 0004
ROADWAY ITEMS
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0260 2301-1033080 115.500
STANDARD OR SLIP FORM
PORTLAND CEMENT CONCRETE
PAVEMENT, CLASS C, CLASS 3
DURABILITY, 8 IN.
SY _________._____ _________._____
0270 2301-1033110 235.500
STANDARD OR SLIP FORM
PORTLAND CEMENT CONCRETE
PAVEMENT, CLASS C, CLASS 3
DURABILITY, 11 IN.
SY _________._____ _________._____
0280 2412-0000100 2,077.500
LONGITUDINAL GROOVING IN
CONCRETE, BRIDGE DECK AND/OR
APPROACHES
SY _________._____ _________._____
0290 2503-0500401 2.000
BRIDGE END DRAIN, DR-401 EACH _________._____ _________._____
0300 2505-4008120 440.000
REMOVAL OF STEEL BEAM
GUARDRAIL
LF _________._____ _________._____
0310 2505-4008300 162.500
STEEL BEAM GUARDRAIL LF _________._____ _________._____
0320 2505-4008410 4.000
STEEL BEAM GUARDRAIL BARRIER
TRANSITION SECTION, BA-201
EACH _________._____ _________._____
0330 2505-4021010 4.000
STEEL BEAM GUARDRAIL END
ANCHOR, BOLTED
EACH _________._____ _________._____
0340 2505-4021720 4.000
STEEL BEAM GUARDRAIL TANGENT
END TERMINAL, BA-205
EACH _________._____ _________._____
0350 2510-6745850 1,601.700
REMOVAL OF PAVEMENT SY _________._____ _________._____
Contracts and Specifications Bureau
10/14/2026 9:31 AM
Proposal Schedule of Items
Proposal ID: 75-0031-112 Call Order: 034 Letting Date: November 17, 2026
SECTION: 0004
ROADWAY ITEMS
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0360 2526-8285040
CONSTRUCTION SURVEY, LOCATION
SURVEY
LUMP SUM LUMP SUM _________._____
0370 2527-9263155 2.000
PRE-CUT SYMBOLS AND LEGENDS,
PREFORMED THERMOPLASTIC
MARKING MATERIAL
EACH _________._____ _________._____
0380 2527-9263181 43.200
PAVEMENT MARKINGS REMOVED STA _________._____ _________._____
0390 2527-9263190 2.000
SYMBOLS AND LEGENDS REMOVED EACH _________._____ _________._____
0400 2527-9263209 52.120
PAINTED PAVEMENT MARKINGS,
WATERBORNE OR SOLVENT-BASED
STA _________._____ _________._____
0410 2527-9263225 13.080
PERMANENT TAPE MARKINGS,
PREFORMED THERMOPLASTIC
MARKING MATERIAL
STA _________._____ _________._____
0420 2527-9263231 41.500
REMOVABLE TAPE MARKINGS, WET
RETROREFLECTIVE
STA _________._____ _________._____
0430 2527-9270112 57.610
GROOVES CUT FOR PAVEMENT
MARKINGS
STA _________._____ _________._____
0440 2527-9270120 2.000
GROOVES CUT FOR SYMBOLS AND
LEGENDS
EACH _________._____ _________._____
0450 2528-8400048 1,450.000
TEMPORARY BARRIER RAIL,
CONCRETE
LF _________._____ _________._____
0460 2528-8400256 1.000
TEMPORARY TRAFFIC SIGNALS EACH _________._____ _________._____
Contracts and Specifications Bureau
10/14/2026 9:31 AM
Proposal Schedule of Items
Proposal ID: 75-0031-112 Call Order: 034 Letting Date: November 17, 2026
SECTION: 0004
ROADWAY ITEMS
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0470 2528-8445110
TRAFFIC CONTROL LUMP SUM LUMP SUM _________._____
0480 2528-8445116 20.000
FLAGGER WITH AFAD EACH 880.00000 17,600.00
0490 2551-0000110 4.000
TEMP CRASH CUSHION EACH _________._____ _________._____
0500 2602-0000320 2,240.000
PERIMETER AND SLOPE SEDIMENT
CONTROL DEVICE, 20 IN. DIA.
LF _________._____ _________._____
0510 2602-0000351 2,240.000
REMOVAL OF PERIMETER AND
SLOPE OR DITCH CHECK SEDIMENT
CONTROL DEVICE
LF _________._____ _________._____
Section: 0004 Total: _________._____
Total Bid: _________._____
DS-23032
(New)
DEVELOPMENTAL SPECIFICATIONS
FOR
ELECTRONIC TICKETING
Effective Date
October 17, 2023
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.
23032.01 DESCRIPTION.
A. This work shall consist of providing electronic material tickets for all loads of flexible paving
mixture or ready mixed PCC delivered to the project. Electronic ticketing will only be required for
the primary material supplied to the project, i.e. flexible paving mixture for an HMA resurfacing
project or PCC for a PCC paving project. Electronic tickets for other materials supplied to a
project may be submitted at the Contractor’s option. The Contractor/supplier can use the plant
ticketing system of their choice to create the material ticket data.
B. Ticket data shall include the following:
1. After each truck is loaded, ticket data must be electronically captured, and ticket information
uploaded via web service / Application Programming Interface (API) to the agency.
2. Material ticket data will be submitted to https://iowa.dot-portal.io via an HTTPS POST as
JSON documents. Include the API key specific to each customer in each request as an HTTP
header.
3. Material supplier must test to confirm that ticketing data can be shared from the originating
system no less than 30 days prior to project start. Topic shall be discussed at the pre-
construction meeting.
4. Ticket data must be available immediately upon project start so there are no delays to
viewing tickets.
5. Provide the same data that is currently accessible and viewed by agency users previously on
printed tickets specific to state projects.
6. Transmit ticket data before the truck leaves the plant and transmit any updates to the ticket
data within 5 minutes of a change.
DS-23032, Page 2 of 3
23032.02 CONSTRUCTION DATA.
Contractor shall submit material ticket data in accordance with the plant manufacturer’s system
recommendations to provide the following.
A. Net weight (or volume for ready mix concrete) of material being transported (to nearest 0.01 ton
or cubic yard).
B. Running daily total of net weight of material (or volume for ready mix concrete) being transported
(to the nearest 0.01 ton or cubic yard).
C. Each material ticket shall contain the following:
1. General Ticket information (All Material).
a. Date.
b. Iowa DOT Project Number.
c. Name of Contractor
d. Name of material supplier.
e. Unique truck ID.
f. Plant/scale name (source).
g. Truck Status Times:
1) Loaded time (time batched) shall be available.
2) Provided other truck status times as available.
a) Ticketed.
b) Load time.
c) Left plant.
d) Arrive at project.
e) Begin unload.
f) Finish unload.
g) Leave project.
2. Portland Cement Concrete.
a. Loaded time (water/cement time).
b. Wet and dry batch weights (if computer generated).
c. Water:
1) In aggregate.
2) Total water.
3) Water/cement ratio.
4) Max water/cement ratio.
5) Allowable water to add.
d. Admixtures (including brand names if available):
1) Retarder and weights.
2) Water reducer and weights.
3) Air entrainment and weights.
4) Special performance admixtures and weights.
5) Concrete fibers.
e. Cementitious material(s) and weights.
f. CPI Name and certificate number.
3. Flexible Pavement Mixture.
a. Type of material.
b. Gross weight (if not automatic weighed).
c. Tare weight (if not automatic weighed).
d. Net weight.
e. Mix design number.
DS-23032, Page 3 of 3
23032.03 METHOD OF MEASUREMENT.
None.
23032.04 BASIS OF PAYMENT.
Payment for electronic ticketing will be incidental to the material being provided.
DS- 23079
(Replaces DS-23061)
DEVELOPMENTAL SPECIFICATIONS
FOR
PREFORMED THERMOPLASTIC PAVEMENT MARKINGS
Effective Date
October 21, 2025
THE STANDARD SPECIFICATIONS, SERIES OF 2023, ARE AMENDED BY THE FOLLOWING
MODIFICATIONS AND ADDITIONS. THESE ARE DEVELOPMENTAL SPECIFICATIONS AND THEY
SHALL PREVAIL OVER THOSE PUBLISHED IN THE STANDARD SPECIFICATIONS.
23079.01 DESCRIPTION.
Under this work, the Contractor shall furnish and apply preformed thermoplastic pavement markings at
the location and in accordance with patterns indicated on the plans or as ordered by the Engineer, and in
conformance with the MUTCD and these specifications. This work may also include, when shown on the
plans, grooves cut for lines and symbols and legends.
23079.02 MATERIALS.
A. Preformed Thermoplastic.
1. Preformed Thermoplastic shall meet the requirements of Materials I.M. 483.05. Approved
manufacturers and brand names are listed in MAPLE.
2. Preformed thermoplastic shall be capable of application on bituminous and concrete
pavements.
3. The markings must be resistant to the detrimental effects of motor fuels, lubricants, hydraulic
fluids, antifreeze, exposure to sunlight, water, salt or adverse weather conditions.
4. Lines, legends and symbols must be capable of being affixed to bituminous and/or Portland
cement concrete pavements by heating.
5. Follow manufacturers recommendations for storage, handling and application temperatures
and conditions.
6. Store markings in accordance with the manufacturer’s instructions and manufacturer’s
requirements for shelf life and storage conditions. Ensure markings are clearly labeled and in
a dry and clean condition prior to use. Shipping documents and containers shall have
identification numbers or batch dates for confirmation of when products were manufactured,
brand name, name of manufacturer, lot or batch number, temperature range for storage,
expiration date, the quantity contained and include material safety data sheets. Place
markings within the manufacturers published shelf life for the material. Do not place markings
outside of expiration dates for the markings without written consent from the manufacturer
provided to the engineer PRIOR to placement.
DS-23079, Page 2 of 4
7. Use Markings conforming to the Chromaticity limits and within the coordinates for the
respective colors for daytime and nighttime as indicated in ASTM D6628 Tables 1 and 2.
Lightness Limits shall conform to ASTM D6628 Table 3 for each respective color of marking.
8. Pigments.
a. White: The material shall be manufactured with sufficient titanium dioxide pigment to
meet FHWA Docket No. FHWA-99-6190 Table 5 and Table 6 as revised and corrected.
b. Red, Blue, and Yellow: The material shall be manufactured with sufficient pigment to
meet FHWA Docket No. FHWA-99-6190 Table 5 and Table 6 as revised and corrected.
The yellow pigments must be organic and must be heavy-metal free.
c. Other Colors: The pigments must be heavy-metal free.
9. Skid Resistance.
The surface, with properly applied and embedded surface beads, must provide a minimum
resistance value of 45 BPN when tested according to ASTM E 303. If enhanced skid
resistance is specified on plans provide a minimum resistance value of 60 BPN.
10. Thickness.
The material must be supplied at a minimum thickness of 125 mils.
11. Bond Strength.
Able to achieve 200 psi Minimum bond strength per ASTM D 4796.
12. Binder Content.
Minimum Binder content of 18% per ASTM D 4797.
B. Primer.
Primer shall be applied as recommended by the manufacturer.
C. Glass Beads.
1. Glass beads, if applied to the surface of pre-formed thermoplastic markings, shall comply, at
a minimum, with the requirements of AASHTO M247 Type 1 and / or Type 3 and / or Section
4184 of the Standard Specifications.
2. The material must contain a minimum of 30% intermixed graded glass beads by weight. The
intermixed beads shall be conforming to AASHTO designation M247, with minimum 80% true
spheres and minimum refractive index of 1.50.
3. The material must have factory applied coated surface beads in addition to the intermixed
beads at a rate of 1 pound (± 10%) per 10 square feet. These factory applied coated surface
beads shall have a minimum of 80% true spheres, minimum refractive index of 1.50.
D. Acceptance.
Acceptance of material shall be based on final inspection per Article DS-23079.03, F and
satisfactory field performance. Pavement markings shall be approved prior to installation on a
project. Approval does not preclude the need for acceptance sampling and testing on a project-
by-project basis.
23079.03 CONSTRUCTION.
A. Contractor Qualifications.
Provide a letter of certification from the preformed thermoplastic pavement marking manufacturer
indicating the Contractor’s qualifications to install their product.
DS-23079, Page 3 of 4
B. Equipment.
All equipment shall be of such design and maintained in such condition as to properly heat, mix,
and apply the material.
C. Surface Preparation.
1. Grooving for pavement markings and legends / symbols and shall be 130 mils -0/+10 mils.
2. The pavement surface on which the thermoplastic material is to be placed shall be clean and
dry. Even if the pavement is visibly dry, subsurface moisture may be present in amounts
sufficient to affect bonding. To test for dryness, a 3 to 6 foot section of tar paper shall be laid
on the pavement and molten thermoplastic applied on top. After 30 seconds, lift the paper
and check for moisture on the bottom of the paper. If the paper is dripping wet, wait until the
pavement has dried before applying the thermoplastic. If the paper shows only a damp spot,
proceed with the thermoplastic application.
3. Pavement surfaces shall be inspected for cleanliness and any dirt, debris, or other
contaminants on the surface to be marked shall be removed.
D. Application.
1. Asphalt.
The material shall be applied as recommended by the manufacturer. The material must be
able to be applied without preheating of the pavement. A primer may be required pursuant to
manufacturers installation requirements.
2. Portland Cement Concrete.
The same application procedure shall be used as described in Article DS-23079.03, D, 1.
However, a primer shall be applied and cured in accordance with the recommendations of the
manufacturer of the thermoplastic material.
3. Glass Beads.
Glass beads shall be applied as recommended by the manufacturers of the thermoplastic
material.
E. General Requirements.
The applied thermoplastic markings will be inspected continually for overall workmanship.
Markings shall have clean cut edges and the color shall be distinctive. The glass beads shall
appear uniform on the entire marking surface.
F. Final Inspection.
1. Provide an acceptable 30 meter geometry retro-reflectometer to use on the project which will
remain the property of the Contractor. In the presence of the Engineer, measure the retro-
reflectivity of selected preformed thermoplastic markings. Take a minimum of five randomly
spaced readings per color line every 1 mile, or per legend or symbol randomly selected per
tenth symbol. Provide the engineer a document indicating results of retro-reflective testing for
the project files. The material, when applied in accordance with manufacturer’s guidelines,
must demonstrate a uniform level of sufficient nighttime retroreflection when tested in
accordance initial minimum retroreflectance values of 300 mcd/sq m/lux for white markings
and 200 mcd/sq m/lux for yellow markings according to ASTM E 1710 (AASHTO T 398). The
minimum retro-reflectivity shall be:
Minimum Coefficient of Retroreflected Luminance (mcd / sq. ft. / ft.-cdl.)
White lines / Symbols / Legends 300
Yellow lines / Symbols / Legends 200
DS-23079, Page 4 of 4
2. If the marking does not meet these initial retro-reflectivity readings, if the marking does not
have the required minimum thickness, or if the marking does not comply with the
specifications for any other reason, the Engineer may require complete removal or correction
at the Contractor’s expense.
23079.04 METHOD OF MEASUREMENT.
Measurement for pavement markings or symbols and legends, satisfactorily placed, will be as follows:
A. Preformed Thermoplastic Pavement Markings.
The number of stations of markings placed will be calculated by the Engineer, using the
beginning and ending points for each type of line placed, based on a single 4 inch width as
outlined in plans. The types are as shown in the plans. The calculations for broken or dotted lines
are adjusted in the table to exclude skips as specified. The calculation for solid lines will be
adjusted to exclude breaks. The quantities for several types of lines will be totaled to a single
quantity of thermoplastic longitudinal 6 inch lines in stations.
B. Preformed Thermoplastic Symbols and Legends.
Each precut symbol or legend is indicated on the plans, and the units will be counted. Each of the
following is a complete unit: each STOP; each SCHOOL legend (one lane or two lane); each RxR
marking for railroad and highway grade crossing; each ONLY; each AHEAD; each freeway,
expressway, and ramp arrow; each straight, curve, or combined arrow; each route shield.
C. Grooves Cut for Pavement Markings or Symbols and Legends.
Per Articles 2527.04, A, 11 and 12 of the Standard Specifications.
23079.05 BASIS OF PAYMENT.
A. Payment for pavement markings or symbols and legends, satisfactorily placed, will be at the
contract unit price as follows:
1. Preformed Thermoplastic Pavement Markings.
For the number of stations of thermoplastic longitudinal lines and transverse markings
placed, the Contractor will be paid the contract price per station.
2. Preformed Thermoplastic Symbols and Legends.
For each unit of precut symbol and legend placed, the Contractor will be paid the contract
price.
3. Grooves Cut for Pavement Markings or Symbols and Legends.
Per Articles 2527.05, A, 11 and 12 of the Standard Specifications.
B. This compensation will be full payment for all work involved in cleaning and preparing the surface
and furnishing, applying, and maintaining the pavement marking, and for furnishing all equipment,
tools, and labor necessary to complete the work. Removal of existing markings is included as a
bid item in the plans and paid for at the contract unit price. The accepted quantity of thermoplastic
pavement marking will be paid for at the contract unit price.
- Package Files
- Name
- 17NOV034\Plan\75-0031-112\75-0031-112_C.pdf
- Bytes
- 8655999
- Name
- 17NOV034\Prop\DS-23032.pdf
- Bytes
- 47943
- Name
- 17NOV034\Prop\DS-23079.pdf
- Bytes
- 130866
- Name
- 17NOV034\Prop\DS-23083.pdf
- Bytes
- 140721
- Name
- 17NOV034\Prop\estprop034.pdf
- Bytes
- 281168
- Package Pages
- 20
- Categorized By
- llm
- Package Scope Docs
- 3
- Package Manifest Only
- No
Iowa Department of TransportationIssuing agency·Iowa·via a public procurement portal