city of fargo meadow creek area flood risk management – project 5944 public information meeting

City of Fargo

Meadow Creek Area FloodRisk Management – Project

5944

Public Information Meeting

June 21, 2010

Agenda Recent Flood Fight Strategy (2009/2010) 2010/11 Proposed City Flood Risk

Management Projects Assessment of Flood Risk Overview of Project Project Schedule / Financing

Meadow Creek Flood Risk Management

Agenda Recent Flood Fight Strategy (2009/2010) 2010/11 Proposed City Flood Risk

Management Projects Assessment of Flood Risk Overview of Project Project Schedule / Financing

Meadow Creek Flood Risk Management

2009 Spring Flood – Meadow Creek Drive

2009 Spring Flood – Meadow Creek Area

2009 Flood Information Probabilistic Stage Predictions as of 3/11/2009 Actual Crest 3/28/2009

Approx.50% Chance

of 36.0-ftand

10% Chance of 38.5-ft

6

Approx.50% Chance of

38-ft10% Chance of

40-ftActual Crest

40.8- ft

2010 Flood Information Probabilistic Stage Predictions as of 3/9/2010 Actual Crest – 3/21/2010

Approx.50% Chance

of 36.0-ftand

10% Chance of 38.5-ft

7

Approx.50% Chance of

38.0-ftand

10% Chance of 42.7-ft

Actual Crest36.99-ft

Current Flood Fight Strategy

Predicted Crest - RS

Top with Freeboard -

RS

Estimated Sandbags Required

35 37 036 38 10037 39 7,60038 40 32,80039 41 79,30040 42 138,30041 43 221,10042 44 314,90043 45 435,100

2009 Flood Fight - Meadow Creek Drive

Sandbagging Effort

Agenda Recent Flood Fight Strategy (2009/2010) 2010/11 Proposed City Flood Risk

Management Projects Assessment of Flood Risk Overview of Project Project Schedule / Financing

Meadow Creek Flood Risk Management

Potential Flood Risk Reduction Projects.• Total Est.

Cost $35 Million

Agenda Recent Flood Fight Strategy (2009/2010) 2010/11 Proposed City Flood Risk

Management Projects Assessment of Flood Risk Overview of Project Project Schedule / Financing

Meadow Creek Flood Risk Management

Assessment of Flood Risk

River Stage 37.0ft

Insert MapSandbag Estimate – 7,600

Assessment of Flood Risk

River Stage 38.0ft

Insert MapSandbag Estimate –

32,800

Assessment of Flood Risk

River Stage 39.0ft

Insert MapSandbag Estimate –

79,300

Assessment of Flood Risk

River Stage 40.0ft

Insert MapSandbag Estimate –

138,300

Assessment of Flood Risk

River Stage 41.0ft

Insert MapSandbag Estimate –

221,100

Assessment of Flood Risk

River Stage 42.0ft

Insert MapSandbag Estimate –

314,900

Assessment of Flood Risk

River Stage 42.5ft

Insert MapFEMA 100-yr Flood Stage 39.5

USACE Recent Evaluation – 1% Flood in Fargo is 42.4?

Sandbag Estimate – 375,000

Agenda Recent Flood Fight Strategy (2009/2010) Assessment of Flood Risk Overview of Project Project Schedule / Financing

Meadow Creek Flood Risk Management

Bike Path (East and

West)

Permanent Storm Water

Pond

Channel Relocation

Low Flow Storm Sewer Extension

Low Flow Storm Sewer Extension and Channel Re-

grade

Completion of Timberline

Levee

Earthen Flood Control Levees to

RS 43+1ft

VISUALIZATION

Modified Long 720.wmv

Agenda Recent Flood Fight Strategy (2009/2010) Assessment of Flood Risk Overview of Project Project Schedule / Financing

Meadow Creek Flood Risk Management

Preliminary Construction Cost Estimate:– Approximately $2.0M

Preliminary Funding Plan – City of Fargo Flood Control Sales Tax– ND State Water Commission (50%)– Potential Special Assessments

Project Schedule / Financing

Conceptual Planning Preliminary Geotechnical Review Preliminary Design City/Park District Meetings Public Informational Meeting(tonight)

Detailed Geotechnical Analysis Hydraulic Analysis / Impacts Final Plans / Specifications / Cost Estimates Permitting Construction Bidding Anticipated Construction Begins (Fall 2010)

Project Schedule / Financing

Comment Form

Questions / Discussion

www.cityoffargo.com\Engineering

Meadow Creek Area Flood Risk Management – Project 5944