Final Environmental Impact Report - Whittier Bridge/I-95 ...

Final Environmental Impact Report - Whittier Bridge/I-95 ... Final Environmental Impact Report - Whittier Bridge/I-95 ...

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Whittier Bridge/I-95 Improvement Project FEIR Chapter 2.0: Response to Comments on the Environmental Assessment/Draft Environmental Impact Report Should field conditions encountered during the construction of the proposed basins indicate otherwise, additional provisions will be incorporated into the project to limit impacts to the subject. These provisions shall include but are not limited to the installation of subdrains at locations deemed necessary to control the flow and elevations of groundwater at the limits of the SHLO. Amesbury-5: The DEIR indicates that there will be a Wetlands Mitigation Area constructed in the upland area just north of Wetland H (located just south of the Salisbury off-ramp to Route 110-Exit 58). The excavated 4,950 SF of soil appears to create a significant slope adjacent to the location where the Shared Use Path starts to veer off to the Old Merrill Street access point and also where the modifications to the existing Exit 58 off-ramp are proposed. The city requests that the applicant review the slope soil conditions for possible stability issues during and after construction, whether or not the mitigation area is going to provide additional storm water storage, and what effects this mitigation/storage area will have no impact on the abutting private property. Response: Section 1.4.5 provides additional details on the proposed BVW mitigation area. This information has been provided to the Amesbury Conservation Commission. Amesbury-6: The DEIR indicates that Wetland I may be hydraulically linked to a larger wetland system on the east side of Merrill Street, however no apparent connection was observed (Page 4-47 of DEIR). The wetland to the east of Merrill Street is tidally influenced and if the two wetlands are connected are there any other precautions that need to be taken to protect the wetland, the retaining walls to be constructed, or to maintain the wetlands after construction Response: MassDOT District 4 recently located the referenced culverts and confirmed that the culvert connects Wetland I with the larger wetland system to the east of Merrill Street. As noted, this area is tidally influenced and the FEMA flood insurance rate map for the area indicates: ―Flooding Effects from Merrimack River‖ for this wetland. Construction of the proposed retaining wall will not be affected by the existence of the wetland. As the existing culvert under Merrill Street will not be affected by project construction and the existing hydrology will not change, there is no anticipated effect on the wetland. Amesbury-7: The operations and maintenance of the proposed stormwater system is a significant concern to the city as most of the storm water basins and outlets appear to be difficult to access from areas other than the highway itself. Has an appropriate Stormwater Operation and Maintenance Manual been developed for the entire project and will they be provided to the abutting communities Response: MassDOT prepared a project-specific O&M Plan and submitted it to the conservation commissions as part of the wetlands permitting process. Section 1.4.12 includes information on the O&M Plan. In general, long-term pollution prevention and related maintenance activities will be conducted consistent with the MassDOT NPDES Stormwater MS4 Permit, and the measures outlined in MassDOT‘s SWMP. The stormwater management system covered by this O&MPlan consists of the following components: deep sump catch basins; water quality swales; sediment forebays; infiltration basins; wet basins; and infiltration trenches. Maintenance of these components will be conducted in accordance with MassDOT standard maintenance practices on an annual basis. If inspection indicates the need for major repairs of structural surfaces, procedures to effect repairs in accordance with MassDOT standard construction practices will be initiated. Amesbury-8: In the DEIR, MassDOT indicates that the Route 150-Hillside and Sparhawk Roadway Reconstruction Project, the Hines Bridge and Route 110 Widening Projects are to be completed prior to the commencement of construction on the Whittier Bridge. MassDOT has not provided to the city project completion timelines for the Route 2-42

Whittier Bridge/I-95 Improvement Project FEIR Chapter 2.0: Response to Comments on the Environmental Assessment/Draft Environmental Impact Report 110 Widening and the Hines Bridge Construction. Additionally, the Reconstruction of Route 150-Hillside and Sparhawk Streets has been shifted in the Merrimack Valley Planning Commission Transportation Improvement Program and is scheduled for construction in 2015. Knowing that the Whittier Bridge project needs to be completed by the end of 2016, has MassDOT reviewed the traffic impacts that could arise if these other projects are not completed in a timely manner Response: The Route 150 Improvement project is currently scheduled for an advertisement date of November 1, 2014 and scheduled for construction in 2015. The currently scheduled completion date for the Hines Bridge is July 2012. The Route 110 widening project is currently scheduled for completion in the summer of 2012. If these projects are delayed, MassDOT will address the issue at that time. However, with no traffic diversions from the project, no real effect on traffic is expected. Amesbury-9: The DEIR indicates there will be no offsite traffic impacts on neighboring roadways or arterials and that all traffic will remain within the existing corridor. The DEIR references the use of signage to direct motorists to roadway detours during construction, indicating that traffic may be diverted to other routes. It is a concern that traffic will seek alternate routes resulting from backups during construction as speeds are reduced in the construction zones and drivers must make lane shifts as the project construction is phased. This could cause traffic impacts to other roads such as Route 110 in Amesbury and Salisbury and Route 1 in Newburyport and Salisbury. Response: No traffic diversions are anticipated during the construction of the Whittier Bridge project. MassDOT is committed to maintaining traffic flow through the project corridor throughout the construction period. No lane closures except limited closures during late night/early morning hours to accommodate lane crossovers during various phases of construction or for specific bridge reconstruction/ rehabilitation activities will be required to construct the project. Six lanes of traffic will be maintained throughout the project corridor; no significant traffic diversions are anticipated. 2.4.3 Town of Salisbury The Town of Salisbury submitted two comment letters, one dated December 23, 2011 and the second dated December 27, 2011. Salisbury-1: The Draft EIR identifies the Main Street/Evans Place connection and the Amesbury Visitors Center adjacent to I-95 as one of the existing transportation and recreation nodes to be connected to the Shared Use Path, but the Draft EIR does not contain any investigation of the feasibility of making the connection either via a spiral pedestrian ramp, a stairway or some other acceptable solution. Any of these alternatives could easily be accomplished from municipally-owned property directly adjacent to the Shared Use Path. This is a vital connection that would give convenient and safe pedestrian and bicycle access to the Shared Use Path from the Amesbury Visitors Center adjacent to I-95 and from Main Street and all of downtown Amesbury. It would also serve a much wider regional need as numerous bicyclists travel the scenic roadways along the Merrimack River from communities west of Amesbury and would be able to access the Shared Use Path from this location. We think that some sort of pedestrian access connection is the best solution at this location because it would provide convenient access~ for the elderly and handicapped from the Amesbury Visitors Center to overlooks on the Whittier Bridge. It would also provide a safe and convenient route for Amesbury bicycle commuters heading to and from the Route 113 Park & Ride or jobs in Newburyport. 2-43

<strong>Whittier</strong> <strong>Bridge</strong>/I-<strong>95</strong> Improvement Project FEIR<br />

Chapter 2.0: Response to Comments on the <strong>Environmental</strong> Assessment/Draft <strong>Environmental</strong> <strong>Impact</strong> <strong>Report</strong><br />

110 Widening and the Hines <strong>Bridge</strong> Construction. Additionally, the Reconstruction of Route 150-Hillside and<br />

Sparhawk Streets has been shifted in the Merrimack Valley Planning Commission Transportation Improvement<br />

Program and is scheduled for construction in 2015. Knowing that the <strong>Whittier</strong> <strong>Bridge</strong> project needs to be completed<br />

by the end of 2016, has MassDOT reviewed the traffic impacts that could arise if these other projects are not<br />

completed in a timely manner<br />

Response: The Route 150 Improvement project is currently scheduled for an advertisement date of<br />

November 1, 2014 and scheduled for construction in 2015.<br />

The currently scheduled completion date for the Hines <strong>Bridge</strong> is July 2012. The Route 110 widening<br />

project is currently scheduled for completion in the summer of 2012.<br />

If these projects are delayed, MassDOT will address the issue at that time. However, with no traffic<br />

diversions from the project, no real effect on traffic is expected.<br />

Amesbury-9: The DEIR indicates there will be no offsite traffic impacts on neighboring roadways or arterials and that<br />

all traffic will remain within the existing corridor. The DEIR references the use of signage to direct motorists to<br />

roadway detours during construction, indicating that traffic may be diverted to other routes. It is a concern that traffic<br />

will seek alternate routes resulting from backups during construction as speeds are reduced in the construction zones<br />

and drivers must make lane shifts as the project construction is phased. This could cause traffic impacts to other<br />

roads such as Route 110 in Amesbury and Salisbury and Route 1 in Newburyport and Salisbury.<br />

Response: No traffic diversions are anticipated during the construction of the <strong>Whittier</strong> <strong>Bridge</strong><br />

project. MassDOT is committed to maintaining traffic flow through the project corridor throughout the<br />

construction period. No lane closures except limited closures during late night/early morning hours to<br />

accommodate lane crossovers during various phases of construction or for specific bridge<br />

reconstruction/ rehabilitation activities will be required to construct the project. Six lanes of traffic will<br />

be maintained throughout the project corridor; no significant traffic diversions are anticipated.<br />

2.4.3 Town of Salisbury<br />

The Town of Salisbury submitted two comment letters, one dated December 23, 2011 and the<br />

second dated December 27, 2011.<br />

Salisbury-1: The Draft EIR identifies the Main Street/Evans Place connection and the Amesbury Visitors Center<br />

adjacent to I-<strong>95</strong> as one of the existing transportation and recreation nodes to be connected to the Shared Use Path,<br />

but the Draft EIR does not contain any investigation of the feasibility of making the connection either via a spiral<br />

pedestrian ramp, a stairway or some other acceptable solution. Any of these alternatives could easily be<br />

accomplished from municipally-owned property directly adjacent to the Shared Use Path. This is a vital connection<br />

that would give convenient and safe pedestrian and bicycle access to the Shared Use Path from the Amesbury<br />

Visitors Center adjacent to I-<strong>95</strong> and from Main Street and all of downtown Amesbury. It would also serve a much<br />

wider regional need as numerous bicyclists travel the scenic roadways along the Merrimack River from communities<br />

west of Amesbury and would be able to access the Shared Use Path from this location.<br />

We think that some sort of pedestrian access connection is the best solution at this location because it would provide<br />

convenient access~ for the elderly and handicapped from the Amesbury Visitors Center to overlooks on the <strong>Whittier</strong><br />

<strong>Bridge</strong>. It would also provide a safe and convenient route for Amesbury bicycle commuters heading to and from the<br />

Route 113 Park & Ride or jobs in Newburyport.<br />

2-43

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