3720 - Board of Claims

In addition to dividing work on the Project into three "sections" and limiting work to one
section at a time (proceeding in order from Section 1 through Section 3), the Construction
Sequence also expressly prescribed the phases in which each section would be built and the steps
to be performed in each phase. Specifically, Phase 1 in each section was to widen the right (east)
side of the roadway, expanding the right side and shoulder into a temporary two-lane road. This
Phase 1 work was comprised of Steps 1 through 5 on the Construction Sequence, which
included: clearing and grubbing the right side of the section; installing silt barrier fencing as
needed; installing inlets, piping and sediment control devices; constructing the temporary travel
lanes by excavating, placing rock, course aggregate, sub-base and bituminous concrete base
course (“B.C.B.C.”); and ending Phase 1 by diverting traffic onto this "right side widening." 6
Once traffic was diverted onto this new right side widening, Phase 2, permanent
reconstruction of the left (west) side of the section began. In Phase 2, the contractor was to
follow Steps 6 through 11 which (except for being permanent and on the left side) repeated the
same work as in Steps 1 through 5 (i.e. clearing and grubbing; installing silt barrier fencing;
installing inlets, piping and sediment control devices; constructing the new roadway up to the
B.C.B.C. course; and ending Phase 2 by diverting traffic back on to this left side).
Once the contractor redirected the traffic back onto the left side, Phase 3 began. This
involved making the right side's improvements permanent by removing the B.C.B.C. from the
temporary right side widening, reconstructing the right side (including more excavation, subbase
and new B.C.B.C.), permanently seeding the right side cut and fill slopes, adjusting
temporary traffic markings and ending Phase 3 by moving traffic onto the full width of the
roadway in the section.
6 Initial construction of the right side and right shoulder of the roadway was a critical first step because, once that
was finished, the two lanes of traffic could flow freely while the contractor worked on permanent renovation of the
left (west) side of the roadway.
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