II‐‐81 in 196781 in 1967

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Stakeholders’ Advisory W ki GWorking Groups

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Purpose of the SAWGsPurpose of the SAWGs

Stakeholders’ Advisory Working Groups (SAWGs)• Role• Rules of Engagement • Expectationsp• Potential Topics

Alternative presentation/discussionAlternative presentation/discussion

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Preliminary Alternatives DevelopmentPreliminary Alternatives Development

No Build Alternative‐‐baselineViaduct Alternatives‐‐remove and replace the viaductStreet‐Level Alternatives‐‐remove the viaduct and convert to a surface level highway; re designate I 481 as I 81surface level highway; re‐designate I‐481 as I‐81Depressed Highway Alternatives‐‐remove the viaduct and replace with an uncovered below grade highwayTunnel Alternatives‐‐remove the viaduct and replace with a tunnelOth Alt ti l t I 81 t th hi hOther Alternatives—relocate I‐81 to another highway alignment (i.e., western bypass or West Street)

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SAWG OpportunitiesSAWG Opportunities

It does not by itself result in economic development for City and RegionTo optimize opportunity, this working group can:• Contribute local knowledge and expertise • Discuss/guide/research economic developmentDiscuss/guide/research economic development consequences

Initial SAWG Work SessionsInitial SAWG Work SessionsStrength, weakness, opportunity andopportunity and threat assessment for viaduct corridor

Identifying Future SAWG AgendasIdentifying Future SAWG Agendas

Specific Economic Development Topicsp p p• Downtown/Hill linkages• Eds /Meds and other key sectorsEds /Meds and other key sectors• Community retail and services• Supporting business during construction• Supporting business during construction• Regional economic trends• Business retention/attraction• Business retention/attraction

Tunnel Alternatives Review

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Tunnel Alternatives Tunnel Alternatives 

Tunnel on current alignment• T‐1: Martin Luther King East (formerly Castle Street) to Butternut Street, 2 mile length

Butternut StButternut St

• T‐2: MLK East to Genesee Street, 1 mile length

Tunnel on western alignment Martin LutherMartin Luther

Genesee StGenesee St

Tunnel on western alignment• T‐3: Tunnel under Townsend StreetTunnel on eastern alignment

Martin LutherMartin LutherKing EastKing East

g• T‐4: Tunnel on eastern alignment (81’ below Syracuse)

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Downtown Tunnel AlternativesDowntown Tunnel Alternatives

Two‐lane tunnel in both directionsHighway would be upgraded to current standardsAdds missing connectionsAdds missing connections from/to I‐81 and I‐690*• I‐690 eastbound to I‐81I 690 eastbound to I 81 northbound

• I‐81 southbound to I‐690 westbound

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*Note: Applies to all proposed I‐81 alternatives

Almond St. TunnelAlmond St. Tunnel

XX

XMcBride McBride St.St.

NORTH

XX

Adam

s St.

Adam

s St.

arrison

 arrison

 St.St.

Mon

roe  

Mon

roe  St.St.

Jackson 

Jackson St.

St.

Taylor St.

Taylor St.

Burt St.

Burt St.

enesee

 en

esee

 St.St.

Fayette 

Fayette St.

St.

hing

ton 

hing

ton St.

St.

rie Blvd.

rie Blvd.

Water 

Water St.St.

Plan

HHJJTT GG FF

Was

Was ErErWW

Jackson St. Adams St.Harrison St.

Genesee St.Fayette St.

Washington St.Water / McBride Sts.

Erie St.Monroe St.

Madison St.Cedar St.Martin Luther

King East

Railroad

Street‐level Roadway

Burt St. Taylor St.

Tie into I-690

Tunnel

5,500 ft.

Cut off Side Streets Shown in RedTunnel

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Profile

Almond St. Tunnel AlternativesAlmond St. Tunnel Alternatives

NORTH

ride St.

ride St.

rine St.

rine St.

se Ave.

se Ave.

I‐690 W off‐ramp

Burnet Ave.Burnet Ave.

McBr

McBr

t.t.

Cathe

Cathe

Crou

sCrou

s

I‐81 N on‐rampp

Erie Blvd.Erie Blvd.

Water St.Water St.

Salin

a S

Salin

a S

I‐690 E on‐ramp

Severed StreetsErie Blvd. and State. St. lowered 10’ under I‐81

Washington St.Washington St.

Fayette St.Fayette St.

St.

St.

wnsen

d St.

wnsen

d St.I‐690 E & I‐81 S off‐ramps

lowered 10  under I 81

Legend:

I‐81

Genesee St.Genesee St.

State S

State S

Tow

Tow

Almon

d St.

Almon

d St.

Access to I‐690 W located at West St.

I‐690

Direct Connectors

Local Ramps

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Local Access and Connectivity Local Streets

Almond St. Tunnel AlternativesAlmond St. Tunnel Alternatives

Maximizes area above tunnel and along Almond Street forStreet for• Economic development opportunities• Urban design improvementsUrban design improvementsEliminates viaduct barrier and improves pedestrian connectivityHigh construction costsHigh future life‐cycle and maintenance costsE i ili l iExtensive utility relocations35‐45 potential full property takings

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Almond St. Tunnel SectionAlmond St. Tunnel Section

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Almond St. Tunnel PlanAlmond St. Tunnel Plan

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Almond St. Tunnel Potential ViewAlmond St. Tunnel Potential View

proposedBird’s Eye View Looking North  

proposed

existing

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Almond St. Tunnel Potential ViewAlmond St. Tunnel Potential ViewAlmond and Harrison Looking North  

proposedproposed

existing

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Almond St. Tunnel Potential ViewAlmond St. Tunnel Potential ViewAlmond and Harrison Looking North  

proposedproposed

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existing

Almond St. Existing Soil ConditionsAlmond St. Existing Soil Conditions

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CutCut‐‐andand‐‐Cover ConstructionCover Construction

Due to poor soil conditions, cut‐and‐cover construction requiredconstruction required• Jacked‐box under railroad• Disposal and treatment of saline ground water 

requiredrequiredConstruction steps:• Remove existing viaduct and piers• Excavate trench• Excavate trench• Relocate and support utilities• Construct temporary support walls• C t t t l i ti• Construct tunnel in sections• Cover up tunnel with soil and new local street

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Note: Applies to Downtown tunnels only

CutCut‐‐andand‐‐Cover ConstructionCover Construction

Traffic conditions during constructionconstruction• Divert traffic to I‐481 and I‐690• Maintain local north‐south trafficMaintain local north south traffic on temporary Almond Street runaround

• Maintain local east‐west trafficMaintain local east west traffic on temporary decking over trench

Potential constructionPotential construction duration: 5‐6 years

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Note: Applies to Downtown tunnels only

Townsend St. Tunnel AlternativeTownsend St. Tunnel Alternative

Alternative explored because:• Potentially avoid poor soil conditions on Almond St.• Construction could take place while maintaining p gtraffic on the existing viaduct

Soil conditions likely not any bettery y• Cut‐and‐cover construction required

Potential for substantial property impacts toPotential for substantial property impacts to Pioneer Homes and Downtown

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Note: Applies to Downtown tunnels only

Eastern Alignment Tunnel AlternativeEastern Alignment Tunnel Alternative

Alternative emerged through public inputpublic inputTunnel length: 5 milesNew interchangesg• I‐481, south of the City• I‐690, west of Teall Ave.• I 81 B St• I‐81, near Bear St.• Other connections to local streets are unlikely

Current I‐81 corridor would be open for other uses

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Source: Geotechnical Systems and Structures PE, PLLC

Eastern Alignment Tunnel AlternativeEastern Alignment Tunnel Alternative

existing

proposed

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Source: Geotechnical Systems and Structures PE, PLLC

Eastern Alignment Tunnel AlternativeEastern Alignment Tunnel Alternative

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Source: Geotechnical Systems and Structures PE, PLLC

Eastern Alignment Tunnel AlternativeEastern Alignment Tunnel Alternative

proposedexisting

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Source: Geotechnical Systems and Structures PE, PLLC

Eastern Alignment Tunnel AlternativeEastern Alignment Tunnel Alternative

existing

proposed

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Source: Geotechnical Systems and Structures PE, PLLC

Eastern Alignment Tunnel AlternativeEastern Alignment Tunnel Alternative

Soil conditions are likely more favorable for tunnel construction

C ld b d i TBM ( l

Hazardous waste site

• Could be constructed using TBM (tunnel boring machine) through bedrock

• At least 81’ below the University Hill and Lincoln Park neighborhoods •Large, new g

• Traffic would be able to continue using the current I‐81 during construction

Substantial (over 100) property takings

interchange with I‐690•Impact Lincoln Park•Numerous property takings

• Would also impact Lincoln Park, hazardous waste site, and high‐voltage power lines

• Subterranean easements requiredTeall Ave interchange would be eliminated

•High‐voltage line•Cemetery

Teall Ave. interchange would be eliminatedHighest construction cost of all alternatives

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FirstFirst‐‐cut Construction Estimatescut Construction Estimates($millions)($millions)($millions)($millions)

AlmondAlmond StreetStreet TunnelsTunnelsEasternEastern Alignment Alignment Tunnel  (81’ Below Tunnel  (81’ Below Syracuse)Syracuse)y )y )

High range of construction cost 2,200  3,900 

Low range of construction cost 1,600 3,000 Included ItemsUtility Relocations, Temporary Construction / RoadsMaintenance of Traffic (MOT), Demolition, Mass Excavation, Elevated 

Excluded ItemsPlanning & EnvironmentalDesign and Eng Support During DesignPM, CM, CI, Force AccountFinancing and Legal

Structures (including I‐481), Retaining Walls, On‐Grade Highways (including I‐481), Local Streets, Lighting, ITS, Signage, Landscaping/Streetscaping, Tunnel Civil, Tunnel Systems, Contingency, Escalation (to mid‐point of construction)

Independent TestingOwner Controlled Insurance Program Operation and Maintenance Management Reserve

(to mid‐point of construction)