The I-895 over I-95 and the James River Project
in Richmond, Virginia is part of the 8.8-mi. Route 895 Connector
Project that will connect I-95 and I-295.
The $400 million high-level inter-change is being constructed
under a design-build contract. The segmental bridges consist
of the east and west approaches, the river crossing over the
James River and three ramp structures. The approaches are
pre-cast and built in balanced-cantilever. The west approach
is being constructed with a self-launching over-head gantry.
The ramps are precast and built span-by-span using a self-launching
underslung erection truss. The river crossing has a 205 meter
main span that is constructed cast-in-place in balanced cantilever
using form travelers. The main span segments vary in depth
from 12 to 4 meters and in width from 19 to 23.5 meters.
Construction of the nearly 200 cast-in-place two cell segments
ranging in length from 3.96 to 4.88 meters was accomplished
through simultaneous use of three pairs of form travelers.
The first river crossing typical segment was cast in November
of 2000. While most of the main piers consist of stiff twin-column
arrangements, a single-column pier on the westbound bridge
was stabilized during construction using a unique cable-stayed
arrangement.
Services
Provided:
•
Design
and Details required for the contractor’s proposed
erection scheme, including input and review of contract
plans during the design phase
•
Shop
Drawing Preparation
•
Design
of Erection Equipment
•
Geometrical
Control Plan and Casting and Erection Manuals