Legacy North to Legacy Connection Evaluation Study August

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Legacy North to Legacy Connection Evaluation Study August 18, 2007 WCEC Engineers Legacy North

Legacy North to Legacy Connection Evaluation Study August 18, 2007 WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

Background UDOT North Legacy to Legacy Connection Corridor Preservation Study – June 14, 2007

Background UDOT North Legacy to Legacy Connection Corridor Preservation Study – June 14, 2007 Goal: Examine [and select] a corridor for a future connection between the existing Legacy Parkway and the future North Legacy Highway Criteria: • Provide a direct connection to I-15 • Provide a direct connection to the Legacy Parkway • Provide a local access connection to the Legacy/North Legacy Parkway • Meet the transportation needs based on 2040 traffic projections WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

Study Tasks 1) Review UDOT traffic model volume projections 2) Assess UDOT corridor alignment

Study Tasks 1) Review UDOT traffic model volume projections 2) Assess UDOT corridor alignment options 3) Assess the City’s current Master Transportation Plan alignment option as a viable UDOT option 4) Identify and assess additional corridor alignment options 5) Assess Park Lane capacity and safety considerations Which option is best for the City of Farmington? WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

1) UDOT Traffic Model Volume Projections Key Issues: • Forecasts were developed primarily for

1) UDOT Traffic Model Volume Projections Key Issues: • Forecasts were developed primarily for the purpose of analyzing 2040 traffic operations • Formal environmental document required to determine/ substantiate facility purpose and need • Facility Type • Number of Lanes • Beginning and Ending Points (Logical Termini) WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

2) UDOT Corridor Alignment Options UDOT North Legacy to Legacy Connection Corridor Preservation Study

2) UDOT Corridor Alignment Options UDOT North Legacy to Legacy Connection Corridor Preservation Study – June 14, 2007 Option 1: D&RG Split Interchanges Option 2: Western Alignment Option 3: D&RG South Interchanges Option 4: Eastern Alignment UDOT would generally like to preserve a 300 foot wide corridor WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

UDOT Option 1 I-1 5 No D&RG Split Interchanges Shepard Ln. US rt Hi

UDOT Option 1 I-1 5 No D&RG Split Interchanges Shepard Ln. US rt Hi h Le gh g wa acy y Pa rk Ln . 89 PROS Clark Ln. Po Leg acy y kwa Par r do rri Co RG ne D& rli we State St. Glovers Ln. I-15 WCEC Engineers • Adjacent to existing (and potentially future) rail and utility corridor – current divider. • Potential for additional interchange connections to western residential and commercial roadways; reduce demand on Park Lane/I-15 interchange. • Utilizes current Master Transportation Plan right of way near Shepard Ln. • Provides a distinct geographic separation between commercial and residential areas Legacy North to Legacy Connection Evaluation Study August 18, 2007

UDOT Option 1 I-1 5 No D&RG Split Interchanges Shepard Ln. US rt Hi

UDOT Option 1 I-1 5 No D&RG Split Interchanges Shepard Ln. US rt Hi h Le gh g wa acy y Pa rk Ln . 89 CONS Clark Ln. Po Leg acy y kwa Par r do rri Co RG ne D& rli we State St. Glovers Ln. • Additional geographic division of Farmington. • Potential for increased noise and air quality impacts to additional residential areas. • Split interchange configurations for Legacy Parkway and I-15; operational and right-of-way considerations. • Impacts to commercial properties west of I-15 WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

UDOT Option 2 No rt Hi h Le gh g wa acy y I-1

UDOT Option 2 No rt Hi h Le gh g wa acy y I-1 5 Western Alignment Shepard Ln. US 89 PROS RG D& Pa r rk do Ln . rri Co Clark Ln. State St. e acy lin er w Leg Po y kwa Par or rid or C Glovers Ln. • No additional geographic division of Farmington • Potential for interchange connections to western roadways • Utilizes current Master Transportation Plan right of way near Shepard Ln. • Likely the least impact to existing and planned development I-15 WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

UDOT Option 2 No rt Hi h Le gh g wa acy y I-1

UDOT Option 2 No rt Hi h Le gh g wa acy y I-1 5 Western Alignment Shepard Ln. US 89 CONS RG D& Pa r rk do Ln . rri Co Clark Ln. State St. e acy lin er w Leg Po y kwa Par or rid or C Glovers Ln. WCEC Engineers • Potential for interchange connections to western residential roadways • Potential changes to land use near interchanges • Inability to decrease demand on the Park Lane/ I -15 interchange • Significant concerns regarding viability of the option due to wetland wildlife habitat issues • Western alignment likely to serve less of the regional demand; impacts along I-15 Legacy North to Legacy Connection Evaluation Study August 18, 2007

UDOT Option 3 D&RG South Interchanges Shepard Ln. No rt Hi h Le gh

UDOT Option 3 D&RG South Interchanges Shepard Ln. No rt Hi h Le gh g wa acy y I-1 5 US PROS 89 Pa or d rri rk Ln Co . G R D& State St. or rid kwa Par or I-15 acy e. C lin er Leg w Po Clark Ln. y Glovers Ln. WCEC Engineers • Combined interchange area for both I-15 and Legacy Parkway • Adjacent to existing (and potentially future) rail and utility corridor – current divider • Potential for additional interchange connections to western residential and commercial roadways; reduce demand on Park Lane/I-15 interchange. Would require detailed analysis • Provides a distinct geographic separation between commercial and residential areas Legacy North to Legacy Connection Evaluation Study August 18, 2007

UDOT Option 3 D&RG South Interchanges Shepard Ln. No rt Hi h Le gh

UDOT Option 3 D&RG South Interchanges Shepard Ln. No rt Hi h Le gh g wa acy y I-1 5 US CONS 89 Pa or d rri rk Ln Co . G R D& State St. or rid kwa Par or I-15 acy e. C lin er Leg w Po Clark Ln. • Additional geographic division of Farmington • Potential for increased noise and air quality impacts to additional residential areas • Impacts to commercial lands west of I-15 y Glovers Ln. WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

UDOT Option 4 Eastern Alignment Shepard Ln. No rt Hi h Le gh g

UDOT Option 4 Eastern Alignment Shepard Ln. No rt Hi h Le gh g wa acy y I-1 5 US PROS 89 Ln rk Pa r do rri Co . G R D& w Po State St. or rid or I-15 e. C lin er Clark Ln. • Combined interchange area for both I-15 and Legacy Parkway • No additional geographic division of Farmington • Potential noise and air quality concerns stay primarily within the currently impacted areas WCEC Engineers acy Leg y kwa Par Glovers Ln. Legacy North to Legacy Connection Evaluation Study August 18, 2007

UDOT Option 4 Eastern Alignment Shepard Ln. No rt Hi h Le gh g

UDOT Option 4 Eastern Alignment Shepard Ln. No rt Hi h Le gh g wa acy y I-1 5 US CONS 89 Ln rk Pa r do rri Co . G R D& w Po State St. or rid or I-15 e. C lin er Clark Ln. WCEC Engineers acy Leg y kwa Par Glovers Ln. • Limited ability to provide local access connections • Elevated facility in vicinity of Station Park development • Close proximity to I-15; incident management concerns • Further limits potential for future additional I-15 interchange connections to the local transportation network • Impacts to commercial lands west of I-15 Legacy North to Legacy Connection Evaluation Study August 18, 2007

2) UDOT Corridor Alignment Options Which option is best for the City of Farmington?

2) UDOT Corridor Alignment Options Which option is best for the City of Farmington? • Each option has either a substantial con and/or requires further study in order to conclude that the particular option is indeed “better” than the others or the “best” for the City. • Possible that none of the UDOT options help Park Lane so that it functions adequately in the future. • The preparation of an environmental document would likely assist in providing answers to many of the technical questions but would not help in making decisions on items that are goal oriented or value based. WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

3) City’s Current MTP Alignment Option Won’t accommodate the 2040 traffic demands WCEC Engineers

3) City’s Current MTP Alignment Option Won’t accommodate the 2040 traffic demands WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

4) Additional Corridor Alignment Options Is there a potentially better solution? (Within the context

4) Additional Corridor Alignment Options Is there a potentially better solution? (Within the context of a Corridor Preservation Study) WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

UDOT Option 2 No rt Hi h Le gh g wa acy y I-1

UDOT Option 2 No rt Hi h Le gh g wa acy y I-1 5 Western Alignment Shepard Ln. US 89 Modifications RG D& Pa r rk do Ln . rri Co Clark Ln. State St. e acy lin er w Leg Po y kwa Par or rid or C Glovers Ln. I-15 WCEC Engineers • Combine I-15 & Legacy Parkway interchanges south of Glovers Lane (not depicted) • I-15 local access interchange at Shepard Lane • North Legacy Highway local access interchange on 1525 W. near Glovers Lane. Others? • Development of local transportation roadway network west of I-15 Legacy North to Legacy Connection Evaluation Study August 18, 2007

UDOT Option 3 D&RG South Interchanges Shepard Ln. No rt Hi h Le gh

UDOT Option 3 D&RG South Interchanges Shepard Ln. No rt Hi h Le gh g wa acy y I-1 5 US Modifications 89 G Ln . R D& or d rri Pa rk Co State St. or rid kwa Par or I-15 acy e. C lin er Leg w Po Clark Ln. y • Shifting of I-15 & Legacy Parkway interchanges slightly north to minimize impacts to 250 S. area (not depicted) • I-15 local access interchange at Shepard Lane • North Legacy Highway local access interchange at Park Lane • Development of local transportation roadway network west of I-15 Glovers Ln. WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

UDOT Option 4 Eastern Alignment Shepard Ln. No rt Hi h Le gh g

UDOT Option 4 Eastern Alignment Shepard Ln. No rt Hi h Le gh g wa acy y I-1 5 US Modifications 89 Ln rk Pa r do rri Co . G R D& w Po State St. or rid or I-15 e. C lin er Clark Ln. • I-15 local access interchange at Shepard Lane • North Legacy Highway local access interchange between Shepard Lane & Park Lane • Development of local transportation roadway network west of I-15 WCEC Engineers acy Leg y kwa Par Glovers Ln. Legacy North to Legacy Connection Evaluation Study August 18, 2007

4) Additional Corridor Alignment Options • Results were modifications to or combinations of one

4) Additional Corridor Alignment Options • Results were modifications to or combinations of one or more of the four UDOT options • Although some of the additional alignment options represented a perceived improvement as compared to the original options, none proved to address the primary issues of concern or resulted in the elimination of relevant questions better than any other option. • Issues such as precise interchange locations, lane configurations, vertical and horizontal alignments, and right-of -way requirements are not addressed until the environmental document is prepared and approved and final design is completed. WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

5) Park Lane Capacity and Safety Considerations Unique Facility: • Located at the convergence

5) Park Lane Capacity and Safety Considerations Unique Facility: • Located at the convergence of three freeway systems (US 89, I-15 and Legacy Parkway) • Only current I-15 interchange directly serving the areas west of I-15 between 200 North/SR 273 in Kaysville (± 4 miles to the north) and Parrish Lane in Centerville (± 5 miles to the south) WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

5) Park Lane Capacity and Safety Considerations Unique Facility: • Located at the convergence

5) Park Lane Capacity and Safety Considerations Unique Facility: • Located at the convergence of three freeway systems (US 89, I-15 and Legacy Parkway) • Only current I-15 interchange directly serving the areas west of I-15 between 200 North/SR 273 in Kaysville (± 4 miles to the north) and Parrish Lane in Centerville (± 5 miles to the south) Capacity issues need to be addressed regardless of what happens with UDOT’s corridor preservation effort WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

5) Park Lane Capacity and Safety Considerations Station Park Traffic Study • Recommends capacity

5) Park Lane Capacity and Safety Considerations Station Park Traffic Study • Recommends capacity improvements to Park Lane and interchanges with 1 -15 and US-89 • Indicates that future (2030) traffic demands on Park Lane at both the US-89 and I-15 interchanges will result in failing traffic conditions WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

5) Park Lane Capacity and Safety Considerations Improvement Concepts: 1) Reconfigure the existing US-89/

5) Park Lane Capacity and Safety Considerations Improvement Concepts: 1) Reconfigure the existing US-89/ Park Lane interchange from a tight-diamond to a Single Point Urban Interchange (SPUI). 2) Reconfigure the existing I-15/ Park Lane interchange from a tight-diamond to a SPUI. 3) Widen the existing structures over I-15 and US-89 to accommodate additional capacity. 4) Construct an additional closely spaced but separate parallel facility over US-89 and I-15 immediately north of the existing facility. 5) Eliminate local access from I-15 and/ or US-89. 6) Additional I-15 local access interchanges. WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

5) Park Lane Capacity and Safety Considerations Additional I-15 Local Access Interchanges? • VERY

5) Park Lane Capacity and Safety Considerations Additional I-15 Local Access Interchanges? • VERY difficult south of the US-89/ Park Lane interchange: • Adjacent rail corridor and Legacy Parkway • Difficult north of the US-89/ Park Lane interchange: • Adjacent rail corridor • Adjacent residential development The Shepard Lane crossing represents the most feasible location for a future I-15 local access interchange WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

5) Park Lane Capacity and Safety Considerations Shepard Lane Local Access Connection • In

5) Park Lane Capacity and Safety Considerations Shepard Lane Local Access Connection • In the past, only studied as a potential connection to North Legacy Highway • Could reduce the demand on Park Lane by as much as 30 percent as well as accommodate a significant amount of traffic associated with potential development west of I-15 • Must include supporting roadway network west of I-15 WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

Study Recommendations Which option is best for the City of Farmington? Viewpoints: • •

Study Recommendations Which option is best for the City of Farmington? Viewpoints: • • Don’t divide Farmington any more Don’t increase noise Don’t lower air quality Address issues related east/west circulation (Park Lane & traffic on neighborhood streets) Maximize the potential for commercial/retail development (tax base) Enhance/Maintain Farmington’s “rural quality of life. ” Reduce congestion on I-15 Enhance/Maintain suitable natural habitats for wildlife WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007

Study Recommendations 1) Wait to consider UDOT’s request to amend the Master Transportation Plan

Study Recommendations 1) Wait to consider UDOT’s request to amend the Master Transportation Plan preserving a connection corridor until UDOT completes an Environmental Assessment (EA) or Environmental Impact Statement (EIS). 2) Consider an amendment to the Master Transportation Plan to remove the current North Legacy to Legacy connection option (In conjunction with #4). 3) Initiate an effort to look at the development potential west of I-15 • Quantify the magnitude of traffic • Identify and analyze key traffic access and circulation issues • Study the feasibility for a local access Shepard Lane interchange 4) If a local access interchange is viable at I-15/ Shepard Lane, pursue an amendment to the Master Transportation Plan to include the interchange. WCEC Engineers Legacy North to Legacy Connection Evaluation Study August 18, 2007