Truckee River Flood Management Authority Locally Preferred Plan - - PowerPoint PPT Presentation

Truckee River Flood Management Authority Locally Preferred Plan

Discussion of Project Elements Cost Estimate

Chronology of Project Cost Development

• In December 2012 The USACE completed MCACES for the

National Economic Development Plan (2012 NED).

• In April of 2013 HDR developed MCACES using quantities

developed for the Local Preferred Plan (2013 LPP) and, except for a few exceptions, used the contingencies from the 2012 NED.

• In February 2017 HDR developed a Phasing Plan based on the

2013 LPP. During this effort the project costs were escalated from 2013 costs to 2016 cost.

• In December 2013 the USACE updated the cost estimate for

2012 NED (Certification date of December 2013). – (2013 NED)

Basis for Contingencies for 2013 LPP

• The contingencies were largely obtained from 2012 NED.

Summary of 2013 LPP Contingencies (Using 2012 NED Contingencies)

The USACE 2012 NED Contingencies Were Revised Using a Risk Based Approach – 2013 NED

Summary of 2013 NED Contingencies

Comparison of Contingencies between USACE 2013 NED, 2012 NED, and 2013 LPP

Feature Contingency % USACE 2012 NED HDR 2013 LPP USACE 2013 NED 01 Lands and Damages 39.1 39.1 31.3* 02 Relocations 37.9 37.9 27.12* 06 Fish & Wildlife 37.9 37.9 N/A 09 Channels & Canals 37.9 37.9 27 11 Levees & Flood Walls 37.9 37.9 27 14 Recreation 37.9 68.06 27 16 Bank Stabilization 37.9 38 27 18 Cultural Resources 33.5 33.5 23 30 Plan/Engineering/Design 11.2 11.2 27 31 Construction Management 37.9 37.9 27 *Weighted Avg.

2013 LPP Project Elements Cost Summary Using 2012 NED CNTG.

2013 LPP Project Elements Cost Summary Using 2013 NED CNTG.

Comparison

• f Totals in 2018

dollars

Questions Regarding Project Elements Cost Estimate Spreadsheet

• 1. Are contingency costs also added on top of land costs?
• 2. We have been told that contingency costs are 35%, but the

spreadsheet shows 37.9%. That is a difference of $5.7M

• 3. Are the costs for the NTD included in our estimate?
• 4. There is almost $19M for “Habitat and Feeding” that is not in the

Yellow Book. What is this line item?

• 5. There is $4.7M for “McCarran Levee/UNR (S) that is not in the

Yellow Book. What is this line item?

• 6. Are the completed projects eligible for Army Corps funding? To put

it another way, could we apply for part of that $180M now?

• 7. Could we be provided with an overlay of the 1997 flood for

downtown Reno?

• 1. Are contingency costs also added on

top of land costs?

• Yes

• 2. We have been told that contingency costs

are 35%, but the spreadsheet shows 37.9%

• The original

contingency goal was 35%, but

• A contingency of

37.9% was used for the 2013 LPP to maintain consistency with the USACE

• Then the USACE

updated the NED in 2013 to a Contingency of 27%

Feature Contingency % USACE 2012 NED HDR 2013 LPP USACE 2013 NED 01 Lands and Damages 39.1 39.1 31.3* 02 Relocations 37.9 37.9 27.12* 06 Fish & Wildlife 37.9 37.9 N/A 09 Channels & Canals 37.9 37.9 27 11 Levees & Flood Walls 37.9 37.9 27 14 Recreation 37.9 68.06 27 16 Bank Stabilization 37.9 38 27 18 Cultural Resources 33.5 33.5 23 30 Plan/Engineering/Design 11.2 11.2 27 31 Construction Management 37.9 37.9 27 *Weighted Avg.

• 3. Are the costs for the North Truckee

Drain included in our estimate?

The costs for the North Truckee Drain was included in 2013 LPP Cost Estimate as an estimated cost as it had not been constructed at the time of the report.

Then for the Phasing Plan the NTD cost was updated with the actual bid construction cost and treated as a sunk cost or cost to date.

• 3. Continued

• 4. There is almost $19M for "Habitat and

Feeding" that is not in the Yellow Book.

• This is the necessary work for habitat mitigation/restoration.

• 5. There is $4.7M for "McCarran Levee/UNR (S)

that is not in the Yellow Book.

This Levee Reach on Right Bank was required for Hydraulic Mitigation, a cost was developed in 2016 and unit costs from 2013 LPP were applied.

• 6. Are the completed projects eligible for Army Corps funding?

To put it another way, could we apply for part of that $180M now?

• 7. Could we be provided with an overlay of the 1997 flood for

downtown Reno?

QUESTIONS?

Current Project Phasing

Initial Tasks Baseline Surveys Draft Environmental Impact Statement Final Environmental Impact Statement Environmental Permitting Truckee Meadows Reach Phase 1 Pedestrian Bridge (Wells Avenue), Bank Stabilization, Non-voluntary Home Elevation

• Flood Risk Mitigation

Phase 2 Lake Street Bridge Phase 3 Benching at and below Vista, Bank Stabilization Phase 4 McCarran to Purina (North & South), Existing NTD to end of Floodwall, Bank Stabilization Phase 5

Glendale to Rock, Habitat Facilities, Bank Stabilization

Phase 6

Rock to McCarran, Purina to Existing NTD, Bank Stabilization

Phase 7

Truckee Meadows Habitat Facilities2

Phase 8

Center Street Bridge, Truckee Meadows Recreation Facilities

Phase 9

Sierra Street Bridge

Phase 10

New Downtown Floodwalls, Booth Street Bridge, Pedestrian Bridges

Phase 11

Pump Stations, Existing Downtown Floodwall Replacement

2013 LPP Project Elements Cost Summary Using 2013 NED CNTG.

2013 LPP Project Elements Cost Summary Using 2012 NED CNTG.

Comparison

• f Totals in 2018

dollars