I-440 Reconstruction From I-40 to I-24 What is Design Build? A - - PowerPoint PPT Presentation

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i 440 reconstruction from i 40 to i 24 what is design
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I-440 Reconstruction From I-40 to I-24 What is Design Build? A - - PowerPoint PPT Presentation

Nov 21, 2023 113 likes •377 views

I-440 Reconstruction From I-40 to I-24 What is Design Build? A project delivery method that combines all or some portions of the design and construction phases of a project into a single contract. TDOT clearly defines the

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I-440 Reconstruction From I-40 to I-24

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What is Design Build?

  • A project delivery method that

combines all or some portions of the design and construction phases of a project into a single contract.

  • TDOT clearly defines the

standards, scope, and specifications for a project, and the Design-Builder works to satisfy those requirements.

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20 October 2017

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Why Design-Build?

  • Shortened completion time by
  • verlapping design and

construction

  • Construction can begin before

all design details are final.

  • Reduced claims due to design

errors/ omissions because construction happens under same contract.

  • Shortened project delivery

time which can reduce user costs.

  • Single contact point for

quality, cost and schedule from design through construction.

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I-440 Project Overview - Location Map

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Begin Project End Project

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I-440 Project Overview

  • Constructed in the early 80s
  • 7.8 miles+/-
  • I-440 serves as an urban interstate

facility linking I-40 in the west to I- 24/I-40 in the east. This facility also serves as a connection to I-65, which connects to Nashville to the north and to Brentwood/Franklin/Huntsville to the south.

  • The existing concrete pavement on

I-440 is in substandard condition.

  • The crash rates on I-440 are

approximately 1.8 times higher than the statewide average for urban interstate facilities.

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I-440 ADT

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  • Highest between Hillsboro

Road & I‐65

  • 115,740 (2021)
  • 138,400 (2041)
  • 7% Trucks
  • Lowest between Murphy

Road and West End

  • 85,890 (2021)
  • 104,360 (2041)
  • 2021 – 102,968

(Along the corridor)

  • 2041 – 123,688

(Along the corridor)

  • 2016 – 94,801

(Along the corridor)

AADT

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Existing Typical Section

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  • Travel Lanes (TL)
  • 2 Lanes in each direction
  • 8‐foot inside shoulders with 2‐foot curb
  • 13‐foot grass median
  • Total Median Width – 46 feet (TL to TL)
  • 12‐foot outside shoulders
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I-440 Proposed Improvements

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  • Widening to the inside to provide a minimum of

six (6) travel lanes (3 in each direction) throughout the corridor

  • Widening ends west of Nolensville Road
  • 12‐foot Travel Way
  • 11‐foot +/‐ shoulder
  • Removing and replacing the existing

pavement

  • Eastbound Reconstruction ends west of

Nolensville Road

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Other Improvements

  • Other Improvements

– New Noise walls – Repair/Replace Noise walls – Signing – ITS – Rockfall Mitigation

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  • PROP. 51” MEDIAN BARRIER

BEGIN I‐440 WIDENING

Charlotte Ave.

I-440 Slide 1

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NEW PAVEMENT REPLACE NEW SHOULDER REPLACE MEDIAN PAVING WIDENING RAMP REPAIR/REPLACE LEGENDS

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  • PROP. 51” MEDIAN BARRIER
  • PROP. NOISE BARRIER

I-440 Slide 2

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NEW PAVEMENT REPLACE NEW SHOULDER REPLACE MEDIAN PAVING WIDENING RAMP REPAIR/REPLACE LEGENDS

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I-440 Slide 2

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STA 1081+60 STA 1086+60 Barrier near ROW Barrier near ROW

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  • PROP. 51” MEDIAN BARRIER
  • PROP. NOISE BARRIER

I-440 Slide 3

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NEW PAVEMENT REPLACE NEW SHOULDER REPLACE MEDIAN PAVING WIDENING RAMP REPAIR/REPLACE LEGENDS

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I-440 Slide 3

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STA 1105+07 STA 1110+40 Existing Barrier Barrier Replacement Barrier Replacement at Existing Location

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  • PROP. 51” MEDIAN BARRIER

Belmont Blvd.

I-440 Slide 4

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NEW PAVEMENT REPLACE NEW SHOULDER REPLACE MEDIAN PAVING WIDENING RAMP REPAIR/REPLACE LEGENDS

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  • PROP. 51” MEDIAN BARRIER
  • PROP. NOISE BARRIER

Lealand Ln.

I-440 Slide 5

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NEW PAVEMENT REPLACE NEW SHOULDER REPLACE MEDIAN PAVING WIDENING RAMP REPAIR/REPLACE LEGENDS BRIDGE WIDENING

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I-440 Slide 5

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STA 1203+60 Existing Barrier Barrier Replacement at Existing Location (12’ Height) Existing Barrier Barrier Replacement at Existing Location (12’ Height) STA 1217+60

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  • PROP. 51” MEDIAN BARRIER

U.S. 31

I-440 Slide 6

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NEW PAVEMENT REPLACE NEW SHOULDER REPLACE MEDIAN PAVING WIDENING RAMP REPAIR/REPLACE LEGENDS BRIDGE WIDENING

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I-440 Slide 7

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  • PROP. 51” MEDIAN BARRIER

END I‐440 WIDENING

NEW PAVEMENT REPLACE NEW SHOULDER REPLACE MEDIAN PAVING WIDENING RAMP REPAIR/REPLACE LEGENDS

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  • PROP. 51” MEDIAN BARRIER
  • PROP. NOISE BARRIER

I-440 Slide 8

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NEW PAVEMENT REPLACE NEW SHOULDER REPLACE MEDIAN PAVING WIDENING RAMP REPAIR/REPLACE LEGENDS

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I-440 Slide 8

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Replace Existing Barrier New Barrier

  • n Berm

Existing Barrier STA 1371+96 STA 1382+84

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Maintenance of Traffic / Staging

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Full Depth Build Inside 1st Phase Full Depth Build Outside 2nd Phase Build Outside 2nd Phase

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Aggressive Schedule

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JUNE ‘17 Request for Owners Representative June 16, 2017 AUGUST ‘17 Final Selection for Owners Representative August 2, 2017 Release Request for Qualifications for I-440 August 18, 2017 OCTOBER ‘17 Statement of Qualifications Due October 13, 2017 Anticipated Completion of NEPA October 30, 2017 NOVEMBER ‘17 Short-Listed Design Builders November 10, 2017 DECEMBER ‘17 Complete Request for Proposal/Preliminary Plans December 7, 2017 Issue Request for Proposal to Short-listed Design-Builders December 15, 2017 MARCH ‘18 Technical Proposals Due March 9, 2018 APRIL ‘18 Price Proposals Due April 27, 2018 MAY ‘18 Award of DB Contract May 4, 2018

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Community Outreach

  • Noise Wall Meeting
  • As –Needed Community Outreach
  • Maintenance Agreement for Landscaping
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Q & A

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