Maine Department of Transportation Caribou Connector ... - Maine.gov

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Caribou 6462.30 options evaluated for this project and the reasons they were dismissed (or identified as the preferred alternative). A comparison of the key environmental impacts for these alternatives and alignment options is provided in Table 3-1 (below). No-Action Alternative The No-Action Alternative serves as a baseline to which other alternatives can be compared. The No- Action Alternative is defined as continuing MaineDOT’s ongoing construction program with no additional major projects. MaineDOT’s Multimodal Six-Year Capital Improvement Plan, State Fiscal Years 2010-2015 lists the potential projects planned for construction during that period (see Table 2- 1, below). This list includes both highway reconstruction and highway bridge maintenance projects. This program of potential improvements would be carried out regardless of whether or not a separate construction project arises from the permitting processes. In 2006, MaineDOT completed construction of a roundabout in Caribou at the intersection of Route 1, North Main Street, and the Cary Medical Center driveway. There are no other planned highway improvements on Route 1 in Caribou. The No-Action Alternative was dismissed from consideration because it would retain the existing traffic patterns in downtown Caribou. The Route 1-161 connection would continue to be circuitous and slow through the downtown business district. The No-Action Alternative would therefore not improve travel times or remove the through traffic, particularly trucks, from the downtown streets.
Caribou 6462.30 Transportation System Management (TSM) The TSM Alternative includes carrying out measures in downtown Caribou to improve traffic flow. These measures include upgrading 1.3-miles of Route 161 in downtown Caribou, traffic signal timing or signal phasing adjustments, access management improvements, and improved signage or pavement markings. Currently, there is no direct connection between Route 161, which connects the St. John Valley to Caribou, and Route 1, which is on the east side of Caribou. Route 161 approaches Caribou from the northwest as a 2-lane, 55-mph state highway. In downtown Caribou, Route 161 is a system of oneway city streets that passes through the downtown business district and residential areas. These streets have turning lanes at critical intersections, which are controlled by stop signs or yield signs. There are no traffic signals. The downtown street system is posted at 25 mph. This street system is shown on Figure 3-1. The purpose of the Route 1-161 Connector is not to correct existing safety or congestion problems in downtown Caribou. The purpose of the Caribou Route 1-161 Connector is to improve regional connectivity and mobility, reduce travel times, and reduce the number of through trips (particularly trucks) through the downtown. There are no direct road connections between Route 161 and Route 1 that could be upgraded to provide a direct, high-speed connection between these 2 highways. It is not practicable or feasible to convert any of the existing downtown streets to a 2-way, direct connection. The TSM Alternative was dismissed from consideration because it would not satisfy the Purpose and Need other than a negligible (0.4-minute) decrease in travel times. Alignment Option 1 Alignment Option 1, shown on Figure 2-6, diverges from Route 1 at the Route 1/North Main Street intersection (immediately north of the roundabout at the Cary Medical Center). This option crosses over primarily agricultural land and intersects with Route 161 at-grade near Ogren Road at the Caribou-Woodland municipal boundary. Alignment Option 1 includes 3.5 miles of new alignment highway, and modifies a 0.16-mile section of Route 161 at the intersection of Route 161 and the Route 1-161 Connector. As seen on Table 3-1 (below), Alignment Option 1 would result in only moderate reduction in travel times, total VHT, and truck VHT for through trips between points northwest (Route 161) and south (Route 1) of Caribou, when compared to the No-Action Alternative. Of the alignment options studied, Alignment Option 1 performed the third-worst in the traffic analysis, as seen on Figure 3-6 (below). As seen on Table 3-2 (below), Alignment Option 1 results in the second-fewest acres of wetland impact (6 acres) but has the highest amount of farmland impact (83 acres) and has 9 structures impacts. Alignment Option 1 was dismissed from consideration because it only minimally satisfies the transportation elements of the NEPA Purpose and Need, is not practicable because the City of Caribou opposes the commercial property and business impacts, and has substantial environmental impacts to non-aquatic resources. Alignment Option 2
Page 1 and 2: DEPARTMENT OF ENVIRONMENTAL PROTECT
Page 3: APPLICATION FOR A NATURAL RESOURCES
Page 6 and 7: Exhibit 2 Project Need Caribou 6462
Page 8 and 9: 46.867° N ROUTE 161 LOMBARD RD 68.
Page 27 and 28: Caribou 6462.30 Exhibit 5 Construct
Page 29 and 30: SPECIAL PROVISION SECTION 656 Tempo
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Page 33: Exhibit 8 Alternatives Analysis Car
Page 37 and 38: Caribou 6462.30 Alignment Option 4A
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Page 41 and 42: Caribou 6462.30 traffic from downto
Page 43 and 44: Damaging Practical Alternative (LED
Page 51 and 52: Background Exhibit 10 Wildlife Acce
Page 53 and 54: Caribou 6462.30 Exhibit 11 Wetland
Page 55 and 56: Exhibit 12 Functional Assessment Se
Page 57 and 58: Abbreviation Key MaineDOT Functions
Page 59 and 60: Data sheets for wetlands. 1. Town:
Page 61 and 62: 12. Impact Notes/Photos
Page 63 and 64: Functional assessment: 1. Town: Car
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Page 78: Caribou 6462.30 Impacts in Square F
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SHEET NUMBER OF STATE OF MAINE DEPA
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SHEET NUMBER OF STATE OF MAINE DEPA
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Exhibit 14 Property Abutters See At
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PIN : 006462.30 TOWN : Caribou PROP
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MaineDOT Individual Project Comment
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MaineDOT Individual Project Comment
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Exhibit 16 Section 106 Information
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Exhibit 17 Compensation See Attache
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Caribou Connector, 6462.30 Wetland
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Í 3742 MATTAWAMKEAG RIVER 170 ³±
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Alasmidonta varicosa Carex oronensi
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Caribou Connector, 6462.30 Appendix
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