DIVISION 150
PROJECT REQUIREMENTS
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Section 151
Section 151. — MOBILIZATION
Description 151.01 This work consists of moving personnel, equipment, material, and incidentals to the
project and performing all work necessary before beginning work at the project site.
Mobilization includes the obtaining of permits, insurance, and bonds.
Measurement 151.02 Measure mobilization according to Subsection 109.02.
Payment 151.03 The accepted quantity, measured as provided in Subsection 109.02, will be paid at
the contract price per unit of measurement for the Section 151 pay item shown in the bid
schedule. Payment will be full compensation for the work prescribed in this Section. See
Subsection 109.05.
Progress payments for mobilization lump sum will be paid as follows:
(a) Bond premiums will be reimbursed according to FAR Clause 52.232-5 Payments
Under Fixed-Price Construction Contracts, after receipt of the evidence of payment.
(b) When 5 percent of the original contract amount is earned from other bid items,
50 percent of the mobilization item, or 5 percent of the original contract amount,
whichever is less, will be paid.
(c) When 10 percent of the original contract amount is earned from other bid items, 100
percent of the mobilization item, or 10 percent of the original contract amount,
whichever is less, will be paid.
(d) Any portion of the mobilization item in excess of 10 percent of the original contract
amount will be paid after final acceptance.
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Section 152
Section 152. — CONSTRUCTION SURVEY AND STAKING
Description
152.01 This work consists of furnishing qualified personnel and necessary equipment and
material to survey, stake, calculate, and record data for the control of work. See FAR Clause
52.236-17 Layout of Work.
Personnel, equipment, and material shall conform to the following:
(a) Personnel. Furnish technically qualified survey crews experienced in highway
construction survey and staking. Provide personnel capable of performing in a timely
and accurate manner. An acceptable crew supervisor shall be on the project whenever
surveying/staking is in progress.
(b) Equipment. Furnish survey instruments and supporting equipment capable of
achieving the specified tolerances.
(c) Material. Furnish acceptable tools, supplies, and stakes of the type and quality
normally used in highway survey work and suitable for the intended use. Furnish
stakes and hubs of sufficient length to provide a solid set in the ground with sufficient
surface area above ground for necessary legible markings.
Construction Requirements 152.02 General. Include staking activities in the construction schedule submitted according to Section 155. Include the dates and sequence of each staking activity. The
Government will set initial reference lines, will set horizontal and vertical control points,
and will furnish the data for use in establishing control for completion of each element of the
work. Data relating to horizontal and vertical alignment, theoretical slope stake catch points,
and other design data will be furnished.
Before beginning construction, notify the CO of any missing initial reference lines, control
points, or stakes. The Government will reestablish initial reference lines, control points, and
stakes missing before the beginning of construction.
Perform additional calculations for convenient use of Government-furnished data. Provide
immediate notification of apparent errors in the initial staking or in the furnished data.
Preserve all initial reference and control points. After beginning construction, replace all
destroyed or disturbed initial reference or control points necessary to the work.
Before surveying or staking, discuss and coordinate the following with the CO:
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Section 152
(a) Surveying and staking methods;
(b) Stake marking;
(c) Grade control for courses of material;
(d) Referencing;
(e) Structure control; and
(f) Any other procedures and controls necessary for the work. Survey and establish controls within the tolerances shown in Table 152-1.
Prepare field notes in an approved format. Furnish all survey notes at least weekly. All field
notes and supporting documentation become the property of the Government upon
completion of the work.
Start work only after staking for the affected work is accepted.
The construction survey and staking work may be spot-checked for accuracy, and
unacceptable portions of work may be rejected. Resurvey rejected work, and correct work
that is not within the tolerances specified in Table 152-1. Acceptance of the construction
staking does not relieve the Contractor of responsibility for correcting errors discovered
during the work and for bearing all additional costs associated with the error.
Remove and dispose of all flagging, lath, stakes, and other staking material after the project
is complete.
152.03 Survey and Staking Requirements. Perform all survey, staking, recording of data,
and calculations as necessary to construct the project from the initial layout to final
completion. Reset stakes as many times as necessary to construct the work.
(a) Control points. Relocate initial horizontal and vertical control points in conflict
with construction to areas that will not be disturbed by construction operations. Furnish
the coordinates and elevations for the relocated points before the initial points are
disturbed.
(b) Roadway cross-sections. Take roadway cross-sections normal to centerline.
When the centerline curve radius is less than or equal to 150 meters, take cross-sections
at a maximum centerline spacing of 10 meters. When the centerline curve radius is
greater than 150 meters, take cross-sections at a maximum centerline spacing of 20
meters. Take additional cross-sections at significant breaks in topography and at
changes in the typical section. Along each cross-section, measure and record points at
breaks in topography, but no further apart than 5 meters. Measure and record points to
at least the anticipated slope stake and reference locations. Reduce all cross-section
distances to horizontal distances from centerline.
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Section 152
(c) Slope stakes and references. Set slope stakes and references on both sides of
centerline at the cross-section locations. Establish slope stakes in the field as the actual
point of intersection of the design roadway slope with the natural ground line. Set slope
stake references outside the clearing limits. Include all reference point and slope stake
information on the reference stakes. When initial references are provided, slope stakes
may be set from these points with verification of the slope stake location with field
measurements. Recatch slope stakes on any section that does not match the staking
report within the tolerances established in Table 152-1. Take roadway cross-section
data between centerline and the new slope stake location. Set additional references
even when initial references are provided.
(d) Clearing and grubbing limits. Set clearing and grubbing limits on both sides of
centerline at roadway cross-section locations.
(e) Centerline reestablishment. Reestablish centerline from instrument control points.
The maximum spacing between centerline points is 10 meters when the centerline
curve radius is less than or equal to 150 meters. When the centerline curve radius is
greater than 150 meters, the maximum distance between centerline points is 20 meters.
(f) Grade finishing stakes. Set grade finishing stakes, for grade elevations and
horizontal alignment, on centerline and on each shoulder at roadway cross-section
locations. Set stakes at the top of subgrade and the top of each aggregate course.
Where turnouts are constructed, set stakes on centerline, on each normal shoulder, and
on the shoulder of the turnout. In parking areas, set hubs at the center and along the
edges of the parking area. Set stakes in all ditches to be paved.
The maximum longitudinal spacing between stakes is 10 meters when the centerline
curve radius is less than or equal to 150 meters. When the centerline curve radius is
greater than 150 meters, the maximum longitudinal spacing between stakes is
20 meters. The maximum transverse spacing between stakes is 5 meters. Use brushes
or guard stakes at each stake.
(g) Culverts. Stake culverts to fit field conditions. The location of culverts may differ from the plans. Perform the following:
(1) Survey and record the ground profile along the culvert centerline.
(2) Determine the slope catch points at the inlet and outlet.
(3) Set reference points and record information necessary to determine culvert
length and end treatments.
(4) Plot-to-scale the profile along the culvert centerline. Show the natural
ground, the flow line, the roadway section, and the culvert including end
treatments and other appurtenances. Show elevations, grade, culvert length, and
degree of elbow.
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Section 152
(5) Submit the plotted field-design cross-section for approval of final culvert
length and alignment.
(6) When the field design has been approved, set drainage structure survey stakes,
reference stakes, and stake inlet and outlet ditches to make the structure
functional.
(7) Stake or grade ditches to make the culvert functional.
(h) Bridges. Set adequate horizontal and vertical control and reference points for all bridge substructure and superstructure components. Establish and reference the bridge
chord or the bridge tangent. Also establish and reference the centerline of each pier,
bent, and abutment.
(i) Retaining walls. Survey and record profile measurements along the face of the
proposed wall and 2 meters in front of the wall face. Every 5 meters along the length of
the wall and at all major breaks in terrain take cross-sections within the limits
designated by the CO. For each cross-section, measure and record points every
5 meters and at all major breaks in terrain. Set adequate references and horizontal and
vertical control points.
(j) Borrow and waste sites. Perform the work essential for initial layout and
measurement of the borrow or waste site. Establish a referenced baseline, site limits,
and clearing limits. Survey and record initial and final cross-sections.
(k) Permanent monuments and markers. Perform all survey and staking necessary
to establish permanent monuments and markers. Set permanent monuments according
to Section 621.
(l) Miscellaneous survey and staking. Perform all surveying, staking, and recording
of data essential for establishing the layout and control of the following, as applicable:
(1) Approach roads and trails;
(2) Curb and gutter;
(3) Guardrail;
(4) Parking areas;
(5) Paved waterways;
(6) Special ditches;
(7) Turf establishment;
(8) Utilities;
(9) Signs, delineators, and object markers; and
(10) Pavement markings.
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Section 152
Table 152-1 (1) Construction Survey and Staking Tolerances
Staking Phase Horizontal Vertical
(2)Existing Government network control points ?20 mm ?8 mm* KLocal supplemental control points set from existing (3)?10 mm ?3 mm* NGovernment network points
(4)Centerline points — (PC), (PT), (POT), and (POC) ?10 mm ?10 mm including references
Other centerline points ?50 mm ?50 mm
(5)Cross-section points and slope stakes ?50 mm ?50 mm
(5)Slope stake references ?50 mm ?50 mm Culverts, ditches, and minor drainage structures ?50 mm ?20 mm Retaining walls and curb and gutter ?20 mm ?10 mm
(6)Bridge substructures ?10 mm ?10 mm
(6)Bridge superstructures ?10 mm ?10 mm Clearing and grubbing limits ?500 mm —
(7)Roadway subgrade finish stakes ?50 mm ?10 mm
(7)Roadway finish grade stakes ?50 mm ?10 mm (1) At 95% confidence level. Tolerances are relative to existing Government network control points. (2) K is the distance in kilometers. (3) N is the number of instrument setups. (4) Centerline points: PC - point of curve, PT - point of tangent, POT - point on tangent, POC - point on curve. (5) Take the cross-sections normal to the centerline ?1 degree. (6) Bridge control is established as a local network and the tolerances are relative to that network. (7) Includes paved ditches.
152.04 Acceptance. Construction survey and staking will be evaluated under Subsections
106.02 and 106.04.
Measurement
152.05 Measure the Section 152 items listed in the bid schedule according to Subsection
109.02 and the following as applicable.
Measure grade finishing stakes one time for the subgrade and one time for each aggregate
course.
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Section 152
Do not measure resetting stakes.
For miscellaneous survey and staking paid by the hour, the minimum survey crew size is
2 persons. Do not measure time spent in making preparations, traveling to and from the
project site, performing calculations, plotting cross-sections and other data, processing
computer data, and other efforts necessary to successfully accomplish construction survey
and staking.
Payment
152.06 The accepted quantities, as provided above, will be paid at the contract price per unit
of measurement for the Section 152 pay items listed in the bid schedule. Payment will be
full compensation for the work prescribed in this Section. See Subsection 109.05.
Payment for lump sum items will be prorated based on the total work completed.
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Section 153
Section 153. — CONTRACTOR QUALITY CONTROL
Description 153.01 This work consists of obtaining samples for Contractor quality control testing,
performing tests for Contractor quality control, providing inspection, and exercising
management control to ensure that work conforms to the contract requirements. See FAR
Clause 52.246-12 Inspection of Construction.
Construction Requirements 153.02 Contractor Quality Control Plan. Before the start of the work, submit a written
quality control plan for acceptance. With prior approval, submission of a quality control
plan for items of work not immediately scheduled to begin may be deferred.
Submit the following with the quality control plan:
(a) Process control testing. List the material to be tested by pay item, tests to be
conducted, the location of sampling, and the frequency of testing.
(b) Inspection/control procedures. Address each of the following subjects in each
phase of construction:
(1) Preparatory phase.
(a) Review all contract requirements.
(b) Ensure compliance of component material to the contract requirements.
(c) Coordinate all submittals including certifications.
(d) Ensure capability of equipment and personnel to comply with the
contract requirements.
(e) Ensure preliminary testing is accomplished.
(f) Coordinate surveying and staking of the work.
(2) Start-up phase.
(a) Review the contract requirements with personnel performing the work.
(b) Inspect start-up of work.
(c) Establish standards of workmanship.
(d) Provide training as necessary.
(e) Establish detailed testing schedule based on the production schedule.
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Section 153
(3) Production phase.
(a) Conduct intermittent or continuous inspection during construction to
identify and correct deficiencies.
(b) Inspect completed work before requesting Government inspection
acceptance.
(c) Provide feedback and system changes to prevent repeated deficiencies.
(c) Description of records. List the records to be maintained.
(d) Personnel qualifications.
(1) Document the name, authority, relevant experience, and qualifications of
person with overall responsibility for the inspection system.
(2) Document the names, authority, and relevant experience of all personnel
directly responsible for inspection and testing.
(e) Subcontractors. Include the work of all subcontractors. If a subcontractor is to
perform work under this Section, detail how that subcontractor will interface with the
Contractor's and other subcontractor's organizations.
Modifications or additions may be required to any part of the plan that is not adequately
covered. Acceptance of the quality control plan will be based on the inclusion of the
required information. Acceptance does not imply any warranty by the Government that the
plan will result in consistent contract compliance. It remains the responsibility of the
Contractor to demonstrate such compliance.
Do not begin the work until the quality control plan covering that work is accepted.
Supplement the plan as work progresses and whenever quality control or quality control
personnel changes are made.
153.03 Testing. Perform testing according to the accepted quality control plan. Keep laboratory facilities clean and maintain all equipment in proper working condition. Allow
unrestricted access for inspection and review of the facility.
153.04 Records. Maintain complete testing and inspection records by pay item number and make them accessible to the CO.
For each day of work, prepare an "Inspector's Daily Record of Construction Operations"
(Form FHWA 1413) or an approved alternate form. Detail inspection results including
deficiencies observed and corrective actions taken. Include the following certification
signed by the person with overall responsibility for the inspection system:
"It is hereby certified that the information contained in this record is accurate and that
all work documented herein complies with the requirements of the contract. Any
exceptions to this certification are documented as a part of this record."
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