2014 HDR, Inc., all rights reserved. North Country Access Improvements Stakeholder Advisory Committee Meeting No. 9 January 19, 2016 Welcome and Introduction Bypass Short List Screening Update o Physical Description of Bypasses o Updated Traffic Forecasts o Environmental Considerations o Updated Benefit-Cost Analysis o Crash Assessment Route 11 Improvements Screening o Full Length Widening o Spot Improvements Next Steps Agenda ROUTE 11 BYPASS SHORTLIST Route 11 Bypass Operational and Design Features Alternatives Screening Criteria US 11 Baseline Route 11 CantonPotsdamFull 2 Lanes 4 Lanes 2 Lanes 4 Lanes 2 Lanes 4 Lanes Length (miles) Design Speed (mph)varies 70 Number of Interchanges Number of Bridges Capital Cost (millions) $75$113$64$96$175$267 O&M Cost (thousands)$1,022$620$931$531$797$1,519$2,323 BYPASS SHORTLIST SCREENING : TRAFFIC FORECASTS Preliminary Traffic Volumes Alternatives Screening Criteria US 11 Baseline Bypass Alternatives CantonPotsdamFull 2 lanes 4 lanes 2 lanes 4 lanes 2 lanes 4 lanes Average AM Peak Hour volumes* on US 11 (veh) Average PM Peak Hour volumes* on US 11 (veh) Average AM Peak Hour volumes* on Bypass (veh) Average PM Peak Hour volumes* on Bypass (veh) * Reported volumes are the average volume in either direction Preliminary Traffic Volumes (continued) Alternatives Screening Criteria US 11 Baseline Bypass Alternatives Highway 11 improvements only Highway 11 + Bypasses 2 lanes4 lanes2 lanes4 lanes Average AM Peak Hour volumes* on US 11 (veh) Average PM Peak Hour volumes* on US 11 (veh) Average AM Peak Hour volumes* on Bypass (veh) Average PM Peak Hour volumes* on Bypass (veh) * Reported volumes are the average volume in either direction Preliminary Traffic Speeds Alternatives Screening Criteria US 11 Baseline Bypass Alternatives CantonPotsdamFull 2 lanes 4 lanes 2 lanes 4 lanes 2 lanes 4 lanes AM Peak Hour US 11 Within Potsdam AM Peak Hour US 11 Canton - Potsdam AM Peak Hour US 11 Within Canton AM Peak Hour Bypass PM Peak Hour US 11 Within Potsdam PM Peak Hour US 11 Canton - Potsdam PM Peak Hour US 11 Within Canton PM Peak Hour Bypass Preliminary Traffic Speeds (continued) Alternatives Screening Criteria US 11 Baseline US 11 Alternatives US 11 improvements only US 11 + Bypasses 2 lanes4 lanes2 lanes4 lanes AM Peak Hour US 11 Within Potsdam AM Peak Hour US 11 Canton - Potsdam AM Peak Hour US 11 Within Canton AM Peak Hour Bypass PM Peak Hour US 11 Within Potsdam PM Peak Hour US 11 Canton - Potsdam PM Peak Hour US 11 Within Canton PM Peak Hour Bypass Preliminary Vehicle Miles of Travel and Vehicle Hours of Travel Alternatives Screening Criteria US 11 Baseline Bypass Alternatives CantonPotsdamFull 2 lanes 4 lanes 2 lanes 4 lanes 2 lanes 4 lanes Daily Auto Traffic on US 11 (VMT 000s) Daily Auto Traffic on Bypass (VMT 000s) Daily Truck Traffic on US 11 (VMT 000s) Daily Truck Traffic on Bypass (VMT 000s) Daily Vehicle Miles of Travel in St. Lawrence County (000s) 3,3593,3453,3423, ,2953,270 Daily Vehicle Hours of Travel in St. Lawrence County (000s) Preliminary Vehicle Miles of Travel and Vehicle Hours of Travel (continued) Alternatives Screening Criteria US 11 Baseline US Alternatives US 11 improvements only US 11 + Bypasses 2 lanes4 lanes2 lanes4 lanes Daily Auto Traffic on US 11 (VMT 000s) Daily Auto Traffic on Bypass (VMT 000s) Daily Truck Traffic on US 11 (VMT 000s) Daily Truck Traffic on Bypass (VMT 000s) Daily Vehicle Miles of Travel in St. Lawrence County (000s) 3,359 3,3633,3203,323 Daily Vehicle Hours of Travel in St. Lawrence County (000s) BYPASS SHORTLIST SCREENING : ENVIRONMENTAL CONSIDERATIONS Environmental and Socioeconomic Considerations Alternatives Screening Criteria Route 11 Full WideningSpot Improvements Wetlands Use of wetlands Affected Acreage Mitigation Cost $394,240$0 Agriculture Affected land within designated Agricultural District (acres) Land Use Local Land Use Plans Would not advance, but also not conflict with, local land use plans Socioeconomic Conditions Environmental JusticePotential for moderate environmental impacts in EJ areas Displacement of Residential UnitsNo displacement of residential units Displacement Business EstablishmentsNo displacement of businesses Noise Increased Noise Levels At Sensitive Locations within 200 feet of Existing ROW No increase in traffic volume near village centers. Parks Potential Adverse Effect on Parks: Increased proximity of roadway alignment to parkland No increased proximity BYPASS SHORTLIST SCREENING : BENEFIT-COST ANALYSIS Benefit-Cost Analysis Summary Greatest benefits for all alternatives are travel time savings o Benefits are estimated for all regional traffic, not just isolated to users of the bypass and Route 11 Safety benefits are also generated by 4-lane options Benefit-Cost Ratios are higher for 4-lane options than 2-lane options Benefits are generated by traffic data for the entire study region, not just the bypass corridor Benefit-Cost Ratios at 7% and 3% Discount Rates 7% Discount Rate Canton OnlyPotsdam OnlyFull Bypass 2-Lane4-Lane2-Lane4-Lane2-Lane4-Lane Present Value Benefits ($M)$58.4$107.6$49.3$101.8$101.4$257.5 Present Value Costs ($M)$58.1$87.3$49.6$74.5$157.4$240.1 Net Present Value ($M)$0.3$20.3($0.3)$27.3($56.0)$17.5 Benefit-Cost Ratio % Discount Rate Canton OnlyPotsdam OnlyFull Bypass 2-Lane4-Lane2-Lane4-Lane2-Lane4-Lane Present Value Benefits ($M)$195.9$367.0$166.1$342.2$342.7$870.2 Present Value Costs ($M)$77.5$116.5$66.3$99.5$205.4$313.2 Net Present Value ($M)$118.4$250.5$99.8$242.7$137.4$556.9 Benefit-Cost Ratio ROUTE 11 CRASH ASSESSMENT Mapped Crash types (April 2011-March 2014) Legend NN Not to Scale Route 11 Crash Assessment Crash rates do not exceed Statewide averages for similar facilities Rear end, fixed object and other were predominate crash types Reviewed Route 11 spot improvements Proposed crash mitigations Clusters of rear end crashes (39 total): Dollar General Plaza Cowan Road/Northern Vinyl driveways Ames Road/Route 35 area East of Morley-Potsdam Road Clusters of deer crashes (33 total): East of Cowan Road East of Route 35 Clusters of fixed object crashes (15 total): East of railroad overpass (0.7 miles east of Route 310 intersection) Rear End Crash Clusters Dollar General Plaza Potential Causes o Queue spillback from adjacent signal o Vehicles slowing to turn into the plaza Proposed Mitigation o Advance warning sign for traffic signal at Tupper Rd (Rte 310) Cowan Road/Northern Vinyl Driveway Potential Causes o Vehicles waiting/slowing to turn Proposed Mitigation o Left-turn lane or median refuge for turning vehicles NN Not to Scale Rear End Crash Clusters Route 35/Ames Road Potential Causes o Vehicles waiting/slowing to turn Proposed Mitigation o Left-turn lanes East of Morley-Potsdam Road Potential Causes o Vehicles waiting/slowing to turn Proposed Mitigation o Two Way Left Turn Lane NN Not to Scale Deer Crash Clusters East of Route 35 Proposed Mitigation o Add Deer Crossing Warning Signs (W11-3) o Fencing East of Cowan Road NN Not to Scale Fixed Object Crash Clusters East of Railroad Overpass (0.7 miles east of Route 310 Intersection) Potential Causes o Horizontal curvature o Variety of contributing factors and driver behaviors in accident history additional investigation needed Proposed Mitigation o Add Curve Warning Signs (W1-2) NN Not to Scale US ROUTE 11 IMPROVEMENTS CANTON-POTSDAM Spot Improvements Maintain Two Lanes for Route 11 Left Turn Lanes at Cowan Road Windy Hill Climbing Lane Left Turn Lanes at Dayton Road Morley Potsdam Road Realignment Improvements to the Intersections with County Road 35 o Left Turn Lanes o Offset Roundabouts Widening Widen Route 11 to 4 lanes Left Turn Lanes at Cowan Road Windy Hill Climbing Lane Left Turn Lanes at Dayton Road Morley Potsdam Road Realignment Improvements to the Intersections with County Road 35 Operational and Design Features Alternatives Screening Criteria Route 11 Improvement Alternatives 2 Lanes4 Lanes Length (miles)8.4 Design Speed (mph) 60 Number of Interchanges 00 Number of Bridges 03 Capital Cost (millions) $28.5$62.0 O&M Cost (thousands)$371$806 Widening Route 11 to 4 lanes generates slightly greater benefits than the spot improvements Largest benefits are travel time savings and emission reduction Route 11 Benefit-Cost Analysis Results 7% Discount Rate 2-Lane4-Lane Present Value Benefits ($M)$14.89$34.30 Present Value Costs ($M)$24.15$52.52 Net Present Value ($M)-$9.27-$18.22 Benefit-Cost Ratio % Discount Rate 2-Lane4-Lane Present Value Benefits ($M)$26.09$89.25 Present Value Costs ($M)$32.92$71.60 Net Present Value ($M)-$6.83$17.66 Benefit-Cost Ratio ROUTE 11 CORRIDOR IMPROVEMENTS SCREENING NEXT STEPS Public Meeting SAC Meeting No. 10 Selection of preferred alternatives Final Report Open Discussion 2014 HDR Architecture, Inc., all rights reserved. 2014 HDR, Inc., all rights reserved.