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February 7, 2020
Westshore Area Interchange (I-275/SR 60) and I-275 Improvements
Marshall Hampton, P.E.FDOT District 7
3
Westshore Area Interchange Reconstruction and I-275 Tolled Express Lanes
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6.4 miles
Section 4 Section 5
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Schedule
6
Calendar Years
2020 2021 2022 2023 2024
SEIS Public Hearing
SEIS ROD (Anticipated Approval)
Preliminary Engineering
Right of Way (Acquisition, Relocation, Demo)
Draft RFP
Prepare & Obtain Permits
Industry Forum
Design-Build Advertisement
Technical Proposals
Bid Opening
Notice to Proceed
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Right of Way & Staging Areas
Potential Project Segmentation
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~$62 Million5%
~$52 Million4%
~$870 Million75%
~$180 Million16%
Estimated Roadway Quantities
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Section 4FPID 433535-7
Section 5FPID 434045-2
Clearing and Grubbing 267 Acres 79 Acres
Embankment 3.6 Million CY 817,000 CY
Stabilization 911,000 SY 229,000 SY
Superpave Asphalt 106,000 TN 12,000 TN
Concrete Pavement 11.5” 55,000 SY 36,000 SY
Concrete Pavement 14” 255,000 SY 101,000 SY
Estimated Structural Quantities
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Bridges Quantities
New Bridges 46
New Deck Area 1.7 Million SF
Widened Bridges 24
Widened Deck Area 159,000 SF
Retaining Walls 1.4 Million SF
Sign Structures
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• 60 Cantilever
• 54 Spans
Roadway: SR 60 north of Cypress St.
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Bridges
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4+
4-
3
3
3
3
3
1
2
• 4-Level Interchange• All flyover ramps are
2-lanes wide, except for the express lane ramps to/from HFB
• 12 bridges with spans >200 feet
Section at Highest Point
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Box Culvert Relocation
Proposed Relocation
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Existing Location
Longitudinal Roadways Under I-275
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Lemon Street
NB on-ramp
Roadway: I-275 in Section 5
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New Bridges to/from Downtown Tampa
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• SB on-ramp bridge over river • 3rd level express lane braided ramps w/straddles• Bridge piers within river to align with existing • Limited ROW at Julian B. Lane Park• No Riverwalk impacts• Anticipated aesthetic enhancements and lighting
Existing Condition: Riverwalk Facing North
Transportation Management Plan (TMP)• Traffic Management
• Safe and effective TCP• Improve diversion routes prior to construction
• Demand Management• Enhanced bus service• Business initiatives to encourage flex time and
telecommuting opportunities
• Smart Work Zones• ITS/Technology to enhance mobility and safety• Real-time information sharing
• Public Engagement• Proactive push of information• Partnerships
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Thank You. Questions?