Construction Program Management and Inspection Guide
Construction Program Management and Inspection Guide
Construction Program Management and Inspection Guide
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Grading <strong>and</strong> Drainage<br />
Review the soil survey report or soil profile sheets to become<br />
familiar with conditions:<br />
▼ Identification or classification of the soil or rock types<br />
expected to be encountered throughout the project<br />
(Note: this information is useful should a differing site<br />
claim be submitted by the contractor.) Verify if the<br />
bidding contractors had access to the soils report.<br />
▼ Location of areas requiring special treatment <strong>and</strong> the<br />
type of treatment specified.<br />
▼ Location of borrow materials for embankment <strong>and</strong><br />
subgrade improvement if specified.<br />
▼ Requirements for soil selection in placing poorer soils<br />
in lower portions of fill sections <strong>and</strong> better soils in top<br />
lifts.<br />
Verify that the quality control <strong>and</strong> acceptance procedures are<br />
being followed to ensure that specification requirements are<br />
met.<br />
Ensure that information on the following conditions is<br />
included in the project records:<br />
▼ Depth of lifts compacted.<br />
▼ General conditions under which embankments are<br />
placed.<br />
▼ Moisture <strong>and</strong> density tests required.<br />
▼ Density curves utilized <strong>and</strong> method for matching the<br />
curve to the soil type(s) being compacted.<br />
▼ Test results obtained.<br />
▼ Subexcavation required, the quality of replacement<br />
material, <strong>and</strong> the methods used for measuring <strong>and</strong><br />
paying. Note whether subexcavation was anticipated<br />
<strong>and</strong> properly provided for in the contract or if payment<br />
is by contract change order.<br />
▼ Examine <strong>and</strong> comment on the uniformity of<br />
embankment <strong>and</strong> cut sections, compliance with contract<br />
requirements, <strong>and</strong> proper slope for drainage. (Assuming<br />
the catch points remain as designed, fill slopes<br />
constructed with a steeper slope than designed can<br />
significantly increase embankment quantities <strong>and</strong> can<br />
result in excessive erosion <strong>and</strong> safety concerns.)<br />
▼ Erosion control procedures.<br />
▼ Control exercised to secure the required finished grade<br />
<strong>and</strong> cross-section including slope rounding.<br />
▼ Measurement of roadway cross-sections as to<br />
conformity with plans.<br />
Appendix D: <strong>Inspection</strong>s-in-Depth<br />
CONSTRUCTION PROGRAM MANAGEMENT AND INSPECTION GUIDE (5/01/04)<br />
▼ Final measurements of borrow areas.<br />
▼ Borrow area appearance <strong>and</strong> drainage.<br />
▼ Roadway <strong>and</strong> borrow excavation quantity calculations<br />
including overhaul.<br />
▼ Actual versus anticipated (design) shrink or swell <strong>and</strong><br />
the method used to calculate actual values.<br />
▼ Watering quantities unless subsidiary to the bid item.<br />
▼ Culvert material certifications, backfill densities, <strong>and</strong><br />
alignment.<br />
Pay particular attention to those areas that are difficult to<br />
properly control, such as the outside edges of embankments,<br />
shallow fills, small work areas, <strong>and</strong> transitions from cuts to<br />
fill.<br />
Review <strong>and</strong> comment on underdrain installations. Note<br />
if underdrain quantities were as anticipated or if major<br />
overruns have occurred. Overruns could indicate that<br />
additional predesign geotechnical investigation would have<br />
been appropriate. Comment on the liaison between the<br />
project personnel <strong>and</strong> the central laboratory in resolving<br />
major soil <strong>and</strong> foundation problems arising during<br />
construction.<br />
Review <strong>and</strong> comment on the waterway, ditches, <strong>and</strong><br />
drainage structures. Note whether there are abrupt changes<br />
in ditch alignment, horizontal or vertical, that could result in<br />
future erosion. Verify compliance with the approved Storm<br />
Water Pollution Prevention Plan on file in the project office.<br />
Verify that appropriate permanent erosion control measures<br />
are incorporated at the discharge of culverts <strong>and</strong> other<br />
waterways. Check for sediments leaving the right-of-way.<br />
Match test reports covering the acceptance of corrugated<br />
metal culvert pipe <strong>and</strong> concrete pipe against the actual pipe<br />
delivery reports. Verify that the alignment, bedding, <strong>and</strong><br />
joint construction were examined prior to the backfilling<br />
operations <strong>and</strong> a determination made that the pipe has not<br />
been damaged in h<strong>and</strong>ling <strong>and</strong> placing operations. Observe<br />
backfilling operations <strong>and</strong> witness density tests to ensure<br />
proper inspection control is being exercised. Evaluate<br />
installation procedures <strong>and</strong> inspection control.<br />
Ensure grade <strong>and</strong> drain operations are properly<br />
supervised <strong>and</strong> inspected <strong>and</strong> that the STA has a qualified<br />
grade inspector at the point of grading operations during all<br />
grading operations.<br />
D–11
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