Determine Reinvestment #IowaLeague17 Using Data to Determine Reinvestment Brian Schadt, City Engineer/Asst. Dir of Public Works, Davenport Clay Merritt, CIP Manager, Davenport Nick Schmuecker, Civil Engineer, Davenport Handouts and presentations are available through the event app and at www.iowaleague.org.

INTRODUCTION Incorporated in 1839 Population: 102,612 Key Infrastructure Areas Streets – 1,250 Lanes Miles Sanitary Sewer – 444 Miles Storm Sewer – 225 Miles Streambank – 102 Miles Challenges Asset Condition Climate Funding

STREETS dTIMS: Infrastructure Management Tool Stores Data and Deterioration Models Performance Curves Treatments Triggers or Decision Trees Treatment Cost and Budgets Variables/Data Pavement Condition Index (PCI) Average Annual Daily Traffic (AADT) International Ride Index (IRI) Pavement Age Pavement Type Yearly Budget

STREETS Pavement Condition Index (PCI)

STREETS Pavement Treatments Treatment Category Cost/Lane Mile* PCI Range Fog Seal Preventative Maint. 50,521 X>80 Micro-Surfacing 97,205 80-60 Full Depth Patch 102,262 65-35 Cape Seal Minor Rehab 216,457 61>39 Mill 2” & Overlay Major Rehab 1,100,272 40-20 Replace HMA Reconstruction 1,415,291 X<20 Replace PCC 1,490,216

STREETS Example: Use PCI to provide a numerical value of pavements that can be tracked over time when a treatment is applied

STREETS Northwest Blvd: 2013

STREETS Northwest Blvd: 2015

STREETS 5-Year Plan (Draft) Treatment: Red – Cape Seal Orange – Fog Seal Yellow – Microsurfacing Green – Mill & Overlay Blue – Replace Asphalt Purple – Concrete Patch Pink – Replace Concrete

SEWER Inflow & Infiltration Studies Study Recommendations: Sewer Lining Manhole Rehabilitation Sewer Replacement Point Repairs Cross Connection Elimination New Sewer Lines

SEWER Manhole Rehabilitation Program Combined study & assessment recommendations Rank assets based on National Engineering Standards Create groupings for low mobilization cost Bid items in one package for quantity unit pricing

NATURAL RESOURCES Project Prioritization Matrix (0-100) Ten Weighted Categories: Perceived Nuisance Grant Funding Water Quality Issue Erosion Problem Infrastructure Affected Environmental Judgement Frequency-Benefit Life, Healthy & Safety Solution to Identified Problem On City Property

NATURAL RESOURCES LOW MEDIUM HIGH High & Low Priority Examples - Localized LOW MEDIUM HIGH

NATURAL RESOURCES

CONCLUSION Utilizing data and prioritization matrixes helps city staff in the decision making process by providing logical reasons for project selections when infrastructure needs exceed available funds. Questions?