- County
- PLYMOUTH
- Bid Order
- 352
- Enriched
- Yes
- Projects
- NHSN-075-2(139)--2R-75
- Proposal Id
- 75-0752-139
- 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: 75-0752-139 Letting Date: November 17, 2026
Call Order: 352
Proposal Work Type: LIGHTING
DBE Goal: 0.0%
Contracting Authority: IOWA DEPARTMENT OF TRANSPORTATION
Proposal Guaranty: $25,000.00
This proposal includes the following project(s):
Project Number: NHSN-075-2(139)--2R-75 County: PLYMOUTH
Project Work Type: LIGHTING Route: U.S. 75
Location: Co Rd C80 and Co Rd C70 Intersections
Road System: PRIMARY ROAD (on NHS)
Federal Aid - Wages: Non-Federal Aid - Predetermined Wages are not in Effect
Contracts and Specifications Bureau
10/14/2026 9:31 AM
Contract Time
Proposal ID: 75-0752-139 Call Order: 352 Letting Date: November 17, 2026
Site ID Site Details Liquidated
Damages
00 Late Start Date 08/09/2027 50 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 9:31 AM
Proposal ID: 75-0752-139 Call Order: 352 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: 75-0752-139 Call Order: 352 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: 75-0752-139 Call Order: 352 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: 75-0752-139 Call Order: 352 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-23045 DEVELOPMENTAL SPECIFICATIONS FOR GEOSPATIAL MAPPING OF SUB-
SURFACE AND UNDERGROUND UTILITIES
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 Schedule of Items
Proposal ID: 75-0752-139 Call Order: 352 Letting Date: November 17, 2026
SECTION: 0001
Lighting Items
Proposal
Line
Number
Item Number
Item Description
Item Quantity
and Units
Unit Price Bid Amount
Dollars Cents Dollars Cents
0010 2523-0000100 24.000
LIGHTING POLES EACH _________._____ _________._____
0020 2523-0000200 5,572.000
ELECTRICAL CIRCUITS LF _________._____ _________._____
0030 2523-0000310 12.000
HANDHOLES AND JUNCTION BOXES EACH _________._____ _________._____
0040 2523-0000400 2.000
CONTROL CABINET EACH _________._____ _________._____
0050 2526-8285040
CONSTRUCTION SURVEY, LOCATION
SURVEY
LUMP SUM LUMP SUM _________._____
0060 2526-9000000 5,572.000
GEOSPATIAL MAPPING OF SUB-
SURFACE AND UNDERGROUND
UTILITIES
LF _________._____ _________._____
0070 2528-8445110
TRAFFIC CONTROL LUMP SUM LUMP SUM _________._____
0080 2533-4980005
MOBILIZATION LUMP SUM LUMP SUM _________._____
0090 2599-9999005 2.000
('EACH' ITEM) METER PEDESTAL EACH _________._____ _________._____
Section: 0001 Total: _________._____
Total Bid: _________._____
DS-23045
(New)
DEVELOPMENTAL SPECIFICATIONS
FOR
GEOSPATIAL MAPPING OF SUB-SURFACE AND UNDERGROUND UTILITIES
Effective Date
November 21, 2023
THE STANDARD SPECIFICATIONS, SERIES 2015, ARE AMENDED BY THE FOLLOWING
MODIFICATIONS AND ADDITIONS. THESE ARE DEVELOPMENTAL SPECIFICATIONS AND THEY
SHALL PREVAIL OVER THOSE PUBLISHED IN THE STANDARD SPECIFICATIONS.
23045.01 DESCRIPTION.
The purpose of this specification is to capture as-constructed or as-built geospatial information for
subsurface underground utilities including highway lighting and agency communication lines. Asset
information shall be recorded and submitted as directed in this specification. It is the intent of the
Contracting Authority to capture three dimensional (3D) as-built data within Contracting Authority right-of-
way in accordance with the most current version of ASCE 75. As such, ASCE 75 shall serve as a guiding
reference for this specification. The DOT has condensed its specific language into this specification for
brevity. Clarifications or questions may be answered within Standard ASCE/UESI/CI 75-22. All tables are
from Standard Guideline for Recording and Exchanging Utility Infrastructure Data, ASCE/UESI/CI 75-22,
with permission from ASCE.
23045.02 MATERIALS.
GPS Equipment to record geospatial location to 0.1 foot and utilize project Geoid and Iowa Regional
Coordinate system or transform to those coordinates. See https://iowadot.gov/iarcs/Home for coordinate
system.
23045.03 CONSTRUCTION.
A. General.
During the building process or when there is exposure of subsurface utility infrastructure,
measurements for both horizontal and vertical coordinates should be taken at every unique
feature. This includes locations of horizontal and vertical shifts, deflection points, and at regular
intervals across each unique feature to ensure the desired precision of position is achieved. The
precision of the position shall be documented on a 0 to 5 scale.
B. Data Collection.
The roles pertaining to data compilation and verification include, but are not limited to, the
subsequent points:
1. Document the location and Positional Precision of utility features as per the directives of
Table 1-1.
2. Log utility characteristic data in alignment with Table 1-2.
DS-23045, Page 2 of 6
3. Keep a record of the details related to the respective data gathering event.
4. Validate the data, meaning verify all data adheres to the set standard guidelines. The task of
data verification can be allocated to the subcontractor in charge of the construction or
installation of the utility feature, or the prime contractor overseeing the data gathering.
5. Quickly alert the utility proprietor about inconsistencies between pre-construction data and
the actual installed utility locations that don't meet the Positional Accuracy criteria that are
specified.
C. Trenchless Construction.
1. In situations where a linear feature's installation partially or entirely requires trenchless
technology, the collection and documentation of utility location data should proceed as such:
a. Apply survey methods to pinpoint the locations where the segment enters and exits the
borehole, along with all necessary test pit verification points the boring intersects.
b. Utilize indirect techniques, such as bore logs containing recorded inertial navigation data for
the boring tip, or 3D electromagnetic sonde observations documented on the surface,
between the borehole's entrance and exit. These data need to be obtained and recorded in
3D to attain Positional Accuracy as outlined by Table 23045.03-1. Given these data are
acquired indirectly, Positional Accuracy Levels are undetermined.
2. If geophysical means yield poor results, there shall be sufficient metadata to clearly document
that depictions are based neither on direct nor indirect measurements, but solely on judgment.
For any portion of a trenchless feature not directly measured, the Positional Accuracy shall be
reported as Indeterminate (Accuracy Level 0, see Table 23045.03-2).
D. Relative Location Positioning.
All relative spatial positions should be converted to absolute positions representing the X-Y-Z
Centroid of the utility feature for mapping and data exchange purposes in line with ASCE 75-22.
E. Utilization of Positional Accuracy.
The Positional Accuracy of points gauged in the field should be evaluated separately from the
Positional Accuracy of derived features. The Positional Accuracy Level of a measured point is
frequently superior to that of a line segment between points.
F. Data Gathering Intervals.
During construction or when underground utility infrastructure is later exposed, the horizontal and
vertical coordinate observations should be obtained at each unique feature, at horizontal turns,
vertical turns, and deflection points, and along each unique feature with adequate interval frequency
to reach the needed Positional Accuracy Level (Table 23045.03-1). The data structure of all
deliverables should adhere to standardized field names, domain values, and depicted geometries,
shown in Table 23045.03-2 through Table 23045.03-4, or allow direct mapping to the same fields
per the Utility Data Schema excel file.
Table 23045.03-1. Levels of Positional Accuracy.
Accuracy Level Accuracy (Customary Units) Accuracy (SI Units)
Level 1 0.1 foot 25 millimeters
Level 2 0.2 feet 50 millimeters
Level 3 0.3 feet 100 millimeters
Level 4 1 foot 300 millimeters
Level 5 3 feet 1,000 millimeters
Level 0 Undefined Undefined
Table 23045.03-2. Feature Types.
Attribute Description Example Domain Options
ID Alphanumeric identifier of
the feature N-1
Owner Entity owning the feature IDOT, Any company
Operator Entity or entities operating
the feature City of Ankeny
Utility Type Type of service the feature
provides
Communication, Electric,
Non-potable water, etc.
Utility Subtype Finer level of service type Alarm, Alternating current
(AC), Cable television, etc.
Feature Type Category based on feature
function and configuration
Segment, Device, Access
point, etc.
Component Subtype of a utility feature Air eliminator, Amplifier,
Anchor, etc.
Conveyance Function Primary service purpose of
the feature
Distribution, Gathering,
Service, etc.
Intended Permanence Intended longevity of the
feature Permanent, Temporary
Underground Status
Whether the feature is
partially or completely
underground
Aboveground, Underground,
Submerged, Mixed
Operational Status Operational status of the
feature
Proposed, In service, Out of
service, Abandoned, etc.
Horizontal/Vertical Spatial
Reference
Coordinate system and
datum for spatial reference
EPSG:7064 NAD83(2011) /
IaRCS zone 8
Accuracy Horizontal and vertical
positional accuracies
measured in Feet or
Millimeters
Feature Dimensions
Details about the size,
position, and orientation of
the feature
Dimensions, Azimuth, X-Y-Z
coordinates
Linked File
File with additional
information about the
feature
Date Data Collected Date when the feature was
surveyed DD/MM/YYYY
Data Sensitivity Level Sensitivity level of the
recorded data Unrestricted, Restricted, SSI
Certification Whether the data has been
certified, and by whom
TRUE, FALSE, Certification
summary
Material Main material of the
feature
ABS, Aluminum, Asbestos
cement, etc.
Protective Measures
Whether the feature has
protection, encasement, or
interstitial fill
TRUE, FALSE
Conveyance Method How matter is conveyed
through the feature
Gravity, Pressurized, High
pressure, etc.
Cross Section Configuration Cross-sectional shape of
the feature Arch, Box, Cable, etc.
Dimensions Inside and outside
dimensions of the feature Heights, widths, lengths
DS-23045, Page 4 of 6
Table 23045.03-3. Types of Geometry.
Type of Feature Geometry Type (Minimum Required) Geometry Type (Optional)
Segment Line String 3D Object
Device Point Polygon or 3D Object
Access Point Point Polygon
Support Structure Point Polygon or 3D Object
Containing Structure Polygon 3D Object
Secured Utility Zone Polygon -
Encasement Line String 3D Object
Marker Point -
Tracer Line String
Table 23045.03-4. Feature Attributes.
Feature
attribute Segment Device Access
point
Support
structure
Containing
structure
Secured
utility
area
Encasement Marker Tracer
ID M M M M M M M M M
Owner M M M M M M M M M
Operator O O O O O O O O O
Utility type M M M M M M M M M
Utility subtype O O O O O O O O O
Feature type M M M M M M M M M
Component M M M M M — M O O
Delivery
classification
M M — M M — M O O
Intended
permanence
O O O O O O O O O
Underground
status
O O O O O O O O O
Operational
status
M M M M M M M M M
Horizontal
spatial
reference
M M M M M M M M M
Vertical spatial
reference
M M M M M M M M M
Horizontal
accuracy
M M M M M M M M M
Vertical
accuracy
M M M M M M M M M
Accuracy units C C C C C C C C C
X-Y-Z centroid M M M M M M M M M
Azimuth — C C C C C — — —
X-Y-Z observed O O O O O O O O O
X-Y relative
position
C C C C C C C C C
Z relative
position
C C C C C C C C C
X-Y-Z junction
point
O O O O O O O O O
Quality level O O O O O O O O O
Linked file O O O O O O O O O
Date data
collected
O O O O O O O O O
Data sensitivity
level
O O O O O O O O O
DS-23045, Page 5 of 6
Is certified O O O O O O O O O
Certification
summary
O O O O O O O O O
Material O — — O — — O — O
Is cathodic
protected
O — — O — — O — O
Is encased O — — — — — — — O
Is filled O — — — O — O — —
Interstitial fill
material
O — — — O — O — —
Conveyance
method
O O — — — — — — —
Cross section
configuration
O — — — — — — — —
Number of
conduits
O — — — — — — — —
Inside height O — — — O — O — —
Inside width O — — — O — O — —
Inside length — — — O — — — —
Outside height O O — O O — O — —
Outside width O O O O O O O — —
Outside length O O O O O — — —
Wall thickness O — — — O — O — —
Measurement
units
C C C C C C C — —
Note: M = minimum requirement; O = optional; C = conditional (becomes a minimum requirement if the geometry type used is a 3D
object or if observed data are available); and — = does not apply.
G. Data Validation And Responsibilities
This function comprise of, but are not restricted to, the following elements:
1. Validate the accuracy of the collected data as conforming to this standard guideline. The
party in charge of the utility feature installation or the party overseeing the data collection
shall designate the qualified individual who validates the data's accuracy.
2. Validate that the data included in a deliverable meets Positional Accuracy requirements.
3. Validate that the data included in a deliverable incorporates the necessary data elements as
outlined in Table 23045.03-1. The validated data may also include optional data elements
agreed upon among stakeholders, including the party responsible for constructing the utility
infrastructure, the party responsible for the data collection, the Contracting Authority, and the
utility owner. Competency requirements to fulfill these responsibilities effectively include, but
are not limited to, the following:
a. Basic understanding of equipment and methods employed in surveying and locating.
b. Knowledge of coordinate systems, projections, and project datum.
c. Comprehension of data attribution as recommended by this standard guideline and/or
required by the Contracting Authority.
d. Familiarity with systems and software necessary to produce deliverables required by the
Contracting Authority.
e. Awareness of the requirements and goals of standard ASCE/UESI/CI 75-22 guideline
and ASCE 38; and
f. Certification as a Professional Engineer, authorized land surveyor, or under the
supervision of either.
H. Deliverables.
1. The data structure of all deliverables shall adhere to standardized field names, domain
values, and depicted geometries, as shown in the Utility Layers Schema or enable direct
DS-23045, Page 6 of 6
mapping to the same. Geospatial shapefile (.SHP) with all corresponding files including the
.PRJ file with coordinate information assigned, submitted to DOT-utilitydata@iowadot.us. A
geodatabase template file may also be requested from DOT-utilitydata@iowadot.us.
2. ESRI Shapefiles or geodatabase are preferred, but alternative filetypes that are acceptable
are: 2D and 3D Computer-Aided Design (CAD) files or design (DGN) refer to Chapter 40B-1
of the design manual Feature Codes – Full Descriptions (iowadot.gov), Comma-Separated
Value (CSV) files, Building Information Modeling (BIM) files, Extensible Markup Language
(XML) files, JavaScript Object Notation (JSON) files, Geographic Information System (GIS)
files, Graphic Markup Language (GML) Files, Relational Database Records, Spreadsheet
files, and Web Feature Services (WFS).
23045.04 METHOD OF MEASUREMENT.
Geospatial Mapping of Sub-Surface and Underground Utilities will be measured per linear foot of
completed mapping shapefile of all underground utilities, including measuring the perimeter of polygons.
23045.05 BASIS OF PAYMENT.
A. Linear Feet
B. Payment is full compensation for geospatial shapefile (.SHP) with all corresponding files including
the .PRJ file with coordinate information assigned, submitted to DOT-utilitydata@iowadot.us. The
Engineer shall verify this has been submitted, free of errors, prior to payment.
- Package Files
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