Project Components
The I-515 Viaduct Rehab Project, starting construction June 27, 2021, will be a combination of three distinct elements:
VIADUCT REHABILITATION
• Repair and overlay entire 1.2M square foot deck surface
between UPRR and 21st St
• Reconstruct Casino Center off ramp hinge
• Seismically retrofit selected pier columns
SOUTHBOUND AUXILIARY LANE
• Provide one additional southbound lane between I-15 and Eastern Avenue
• Relocate the existing median barrier and restripe the existing viaduct with narrower
(11’) lanes and shoulders
• Widen Eastern Avenue southbound off-ramp to two lanes
I-515 BRIDGE REPLACEMENTS
• Reconstruct Eastern
Avenue Bridge
• Reconstruct Desert Inn
Road Bridge
Goals
Viaduct Rehabilitation
■ Extend the useful life of the
existing viaduct structures until a
replacement facility with higher
capacity can be constructed
■ To the extent possible, limit ramp
closures during construction to only
one ramp closure at a time
■ Accelerate construction
completion
Southbound Auxiliary Lane
■ Improve traffic flow and travel
time reliability
■ Improve overall safety
■ Minimize property acquisition
■ Minimize environmental impacts
■ Do not preclude future
infrastructure improvements
I-515 Bridge Replacements
■ Replace structurally deficient
bridge superstructures
■ Complete bridge replacement work
as a combined project with the I-515
Viaduct Rehab Project to:
1. Reduce total time under
construction
2. Eliminate conflicts between
multiple construction operations
3. Combine traffic control phasing to maximize efficiency and minimize cost