TE84 Interstate 84 Viaduct Study - HartfordInfo.org
Transcript of TE84 Interstate 84 Viaduct Study - HartfordInfo.org
segment of I-84 is the state’s highest volume roadway with daily traffic volumes of approximately 175,000 vehicles.
A recently completed ConnDOT evaluation of the Via-duct concluded that the structure, while in need of im-mediate repairs, will also need to be fully reconstructed or replaced within 10 to 15 years.
The I-84 Viaduct StudyThis study is the result of a collaborative planning effort involving the City of Hartford, the Connecticut Depart-ment of Transportation (ConnDOT), and the Capital Region Council of Governments (CRCOG) that begins the process of exploring replacement options for the I-84 Viaduct. The study was advanced under the auspices of the HUB of Hartford Committee, a broadly representative steer-
OverviewLike many similar highway structures of its era, Hart-ford’s I-84 Viaduct is near-ing the end of its useful life. Today, communities across the nation are beginning to grapple with the chal-lenge of how best to repair or replace these aging struc-tures in ways that respond not only to transportation needs, but also to urban de-sign and economic develop-ment imperatives. The I-84 Viaduct currently divides the city’s core and sepa-rates neighborhoods from downtown. With the repair or replacement of the I-84 Viaduct, Hartford has an historic opportunity to renew transportation infrastructure and improve the cohesiveness and vitality of its city center.
About the ViaductBuilt in 1965, the I-84 Viaduct is a ¾ mile -long section of elevated highway that extends from Exit 46 (Sisson Ave-nue) through Exit 48 (Asylum/Capitol). I-84 access ramps serve Hartford’s downtown, the Capitol, other major em-ployment centers, and surrounding neighborhoods. This
Newsletter 3
Interstate 84Viaduct Study
October 2010
84INTERSTATE
Pedro E. Segarra Mayor
Community SummitWednesday, October 27thDETAILS ON LAST PAGE
14 | I-84 VIADUCT STUDY | OPTIONS FOR REPLACING I-84 VIADUCT IN DOWNTOWN HARTFORD
DOWNTOWN
FROG HOLLOW
WEST END
ASYLUM HILL
UPPER ALBANY
CLAY ARSENAL
I-84 VIADUCT STUDY AREA
STATE CAPITOL
PARKVILLE
84
84
91
91
Sisson AvenueInterchange
Asylum/Capitol Avenue
Interchange
The I-84 Viaduct is a 3/4 mile-long section of elevated highway between Exit 46 (Sisson Avenue) and Exit 48 (Asylum/Capitol).
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Interstate 84 Viaduct Study October 2010
ing committee formed by the City of Hartford with represen-tation from governmental, business, neighborhood and civic groups. The HUB Committee has its origins as a grassroots citizens group formed in 2006, following an initial study of the I-84 Viaduct that envisioned rehabilitation of the struc-ture largely as currently built. The mandate of the current study is to explore a broader range of replacement options. This newsletter provides an overview of the study findings. The study report provides additional detail and is available on the CRCOG website (www.crcog.org). This study was not intended to define a preferred alternative to replace the Via-duct, but will provide a starting point for the more detailed analysis that will be undertaken by ConnDOT in the coming years. The study considers the strengths and weaknesses of several alternative approaches from economic development, transportation, urban design, and cost perspectives. The study effort was administered by CRCOG. The study consultant team was led by Goody Clancy working with Wilbur Smith Associates, Fitzgerald & Halliday, and W-ZHA.
Study ProcessThe I-84 Viaduct Study has included three phases of work each culminating in a major public forum or workshop to discuss study findings. Public input played a key role in shaping the final concept alternatives, which will be used by ConnDOT as a starting point for a more in-depth as-sessment of replacement alternatives.
Alternatives AnalysisA wide range of alternatives were considered in two rounds of study. In the initial round of analysis, two alternatives, a Boulevard Concept and a Skyway Concept were eliminat-ed from further consideration as they did not adequately address study goals. The second round of alternatives in-clude a Baseline Alternative that largely replaces the high-way in its existing format and three additional alternatives. The alternatives considered include a replacement viaduct, an at-grade highway and a tunnel format.
• Baseline—Enhanced Viaduct: Highway replaced with enhanced viaduct structure.
• Alternative Concept 1: Highway replaced with en-hanced viaduct structure; improved connections across highway.
• Alternative Concept 2: Viaduct replaced by surface roadway; rail line relocated to north side of I-84; city reconnected across highway
• Alternative Concept 3: Viaduct replaced by tunnel; rail line relocated to north side of I-84; city reconnected across highway.
This vision was developed by the Committee in advance of the I-84 Viaduct Study.
HUB OF HARTFORD COMMITTEE VISION STATEMENT
“ The Hub of Hartford will be a lively and walkable, mixed-use, mixed-income urban place, a regional crossroads centered on Union Station, where business, government, community and recreational uses integrate seamlessly in a historic context supplemented by compatible new development. The buildings, trees and landscaped areas will define public streets and spaces that reconnect previously separated city precincts: the state government complex, the Frog Hollow and Asylum Hill neighborhoods and offices, the downtown, and Bushnell Park. Cyclists, walkers and transit riders share the road comfortably with automobiles.”
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Interstate 84 Viaduct Study October 2010
Key Study FindingsThe following are the key findings of the study:
All of the Alternatives considered offer benefits over the Baseline Alternative and the existing condition. Some of the Alternatives offer opportunities for dramatic improve-ment. Each of the alternatives provides different trade-offs in terms of costs and benefits. The Alternatives provide broadly comparable transportation functions but diverge widely in terms of urban design and economic development benefits.
Realigning portions of the rail line in conjunction with the I-84 Viaduct replacement could offer tremendous benefits, though further study is required to determine
feasibility. Today, the rail line crosses the I-84 corridor twice within the study area and adds to the complexity of both highway and rail design. Joint planning for rail and highway corridors could offer ben-efits for both the I-84 Viaduct project and the New Haven-Hartford-Springfield commuter rail initiative.
Significant additional technical analysis is needed in or-der to determine a preferred approach to replacement of the Viaduct. The work that has been done as part of this study has identified several promising directions for fur-ther study and provides a starting point for that work.
I-84 today: the Viaduct and associated ramps. View looking west from downtown towards Asylum Hill.
Some of the alternatives considered offer potentially dramatic opportunities to enhance the city’s core and reconnect it to surrounding neighborhoods.
Want to learn more?See the full I-84 Viaduct Study report at www.crcog.org.
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• AsylumStreetviewcorridoropenedbyremovalofoverheadstructures:I-84eastboundbarrelrelocatedtobelowAsylumStreet;relocatedraillinepassesbelowstreet• I-84Highwayaccessmaintained—fourrampsprovideEB/WBconnections
• 15-20acresofnewusablelandcreated/freedfordevelopmentandopenspace
• RailviaductremovedfromBushnellparkedge;railcorridorrelocatedtonorthsideofI-84• UnionStationannexdevelopedoppositestationtoproviderailstationaccess;busservicesremaininexistingstation
• NewParkBoulevardstrengthenslocalstreetgrid,connectsCapitolAvenueandAsylumStreetandenhancesaccesstothePark
• NewStreetcreatedlinkingBroadStreetandNewParkBoulevard• CharacterofAsylumandBroadStreetsenhancedaspedestrianstreetsthroughnewdevelopmentatstreetedgeandstreetscapeimprovements
• ChurchStreetconnectionbelowI-84isclosed
ASYLUM/BUSHNELL PARK
• NewmorecompactinterchangereplacesSisson
interchange• Usablelandfreedfordevelopmentoropenspace
includingair-rightsdevelopmentbetweenSigour-
neyStreetandLaurelStreet• Enhancedlocalstreetconnections• NewWestBoulevardextensioncreatedeastof
SissonAvenue;thisnewstreetconnectsoverI-84
andconnectstodowntown/FrogHollowviaCapitol
Avenue
SISSON/WEST BOULEVARD• HighwaythatcurrentlypassesoverSigourneyStreetrelocatedtocoveredtunnel;existinghighwayrampaccessfromSigourneymaintained• HighwaylocatedincoveredtunnelbetweenBroadStreetandSissoninterchange
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I - 8 4 V I A D U C T S T U D Y
ALTERNATIVE 1
HIGHWAY REPLACED WITH ENHANCED VIADUCT STRUCTURE;
IMPROVED CONNECTIONS ACROSS HIGHWAY
PRELIMINARY FOR DISCUSSION | SEPTEMBER 2010
NOTE: All highway access ramp locations are preliminary and subject to extensive additional interim review and analysis.
Potential for
new development
Sigourney ramps
removed; full interchange
at Sisson; any closure
of ramps would have to
assure access to major
employers
Replacement I-84
highway viaduct
New air-rights development
I-84 passes
under Asylum
Existing highway
exit to Asylum
Existing rail viaduct
New I-84 access
ramp
New Broad Street
I-84 ramps
New
interchange
Capitol Avenue
connects below
reconstructed
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• AsylumStreetviewcorridorpartiallyreopenedbyremovalofI-84overheadstructure:I-84eastboundbarrelrelocatedtobelowAsylumStreet;railviaductcontinuestobeavisualandphysicalbarrier
• I-84Highwayaccessmaintained—fourrampsprovideEB/WBconnections
• 8acresofnewusablelandcreated/freedfordevelopmentandopenspace
• NewConnectorStreetconnectsCapitolAvenueandAsylumStreet
• NewConnectorStreetlinksBroadStreetandAsylumStreet
• CharacterofAsylumandBroadStreetsenhancedaspedestrianstreetsthroughnewdevelopmentatstreetedgeandstreetscapeimprovements
ASYLUM/BUSHNELL PARK• NewmorecompactinterchangereplacesSisson
interchange
• Somelandfreedfordevelopmentaroundformerinterchange
• Enhancedlocalstreetconnections
• CapitolAvenueandLaurelStreetpassunderI-84Viaduct
• NewWestBoulevardextensionconnectstoHawthornStreet
SISSON/WEST BOULEVARD• RebuiltI-84Viaductcontinues
topassoverSigourneyStreet;Sigourneyrampsremoved—anyclosureoftheserampswouldneedtoassureaccesstomajoremployers
• HighwayfunctionprovidedinrebuiltViaductstructurebetweenBroadStreetandSissoninterchange
SIGOURNEY
Interstate 84 Viaduct Study October 2010
What’s Next?The following identifies key next steps:
• Continued review and discussion of study findings with the City of Hartford:• Presentation of study findings and recommendations
to the Hartford Planning and Zoning Commission• Presentation of study findings and recommendations
to the Hartford City Council • Presentation and discussion of study findings and
recommendations at a major public forum, a Com-munity Summit, to be held in October 2010
• Presentation of study findings to the CRCOG Policy Board
• Continued discussion of further advancement between the City of Hartford, ConnDOT and CRCOG
• Coordination of study findings with ongoing planning and implementation efforts such as One City, One Plan (Hartford’s Plan of Conservation and Development), and the New Haven-Hartford-Springfield commuter rail initiative
• Development of an overall project implementation ap-proach by ConnDOT and its study partners. Key near-term tasks will be identification of funding and scope of work definition for the next phase of project devel-opment, environmental assessments, and engineering analyses
NOTE TO PERSONS WITH SPECIAL NEEDS:
We do not discriminate on the basis of disabilty. Individuals who need auxiliary aids for any meeting are invited to make their needs known by contacting us by mail, phone, fax or email as soon as possible.
Un traductor estará disponible para esta reunión si usted lo solicita al 860-522-2217, lo más pronto posible.
Ph: 860-522-2217 (x 210)Fax: 860-724-1274
email: [email protected] address: CRCOG, 241 Main Street, Hartford, CT 06106
Each alternative includes a variety of approaches to segments of the I-84 Viaduct between the Sisson Avenue and Asylum Avenue ramps.
For additional information on the I-84 Viaduct Study, including the full study report refer to the CRCOG website www.crcog.org
You’re Invited! Come review study findings and explore next steps at the
COMMUNITY SUMMITWednesday, Oct. 27thOpen House: 4:30 pm | Presentation: 5:30 pmHartford Public Library | 500 Main Street
Visit www.crcog.org/viaduct.html for more information.
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PRELIMINARY FOR DISCUSSION | S
EPTEMBER 2010
NOTE: All highway access ramp locations
are preliminary and subject to extensive
additional interim review and analysis.
• Highwayrepaired/rebuiltincurrentconfiguration
• Streetscapeimprovementstoenhancecharacter
oflocalstreets
ASYLUM/BUSHNELL PARK
• NewmorecompactinterchangereplacesSisson
interchange
• Somelandfreedfordevelopmentaroundformer
interchange
• Enhancedlocalstreetconnections
• CapitolAvenueandLaurelStreetpassunder
I-84Viaduct
• NewWestBoulevardextensionconnectsto
HawthornStreet
SISSON/WEST BOULEVARD• RebuiltI-84Viaductcontinues
topassoverSigourneyStreet;
Sigourneyrampsrebuiltin
existingconfiguration
• Highwayfunctionprovided
inrebuiltViaductstructure
betweenBroadStreetand
Sissoninterchange
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O
U
L
E
V
A
R
D
E
X
T
E
N
S
I
O
N
H
A
W
T
H
O
R
N
S
T
R
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E
T
F
O
R
E
S
T
S
T
R
E
E
T
A
S
Y
L
U
M
S
T
R
E
E
T
FARMINGTON AVENUE
A
S
Y
L
U
M
A
V
E
N
U
E
S
I
G
O
U
R
N
E
Y
S
T
R
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E
T
I
-
8
4
I
-
8
4
H
U
N
G
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R
F
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S
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R
I
N
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S
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W
W
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S
T
B
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U
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A
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/
L
A
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L
C
O
N
N ECTOR
C
H
U
R
C
H
S
T
R
E
E
T
COURANT
DOWNTOWNHARTFORD
CAPITOL
BUSHNELLPARK
AETNA
AETNAGARAGE
RAIL LINE
THEHARTFORD
UNIONSTATION
I - 8
4
V
I A
D
U
C
T
S
T
U
D
Y
A
L
T
E
R
N
A
T
I
V
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2
V
IA
D
U
C
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R
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P
L
A
C
E
D
B
Y
S
U
R
F
A
C
E
R
O
A
D
W
A
Y
; R
A
IL
L
IN
E
R
E
L
O
C
A
T
E
D
T
O
N
O
R
T
H
S
ID
E
O
F
I-8
4
; C
IT
Y
R
E
C
O
N
N
E
C
T
E
D
A
C
R
O
S
S
H
IG
H
W
A
Y
PRELIM
IN
ARY FO
R D
ISC
USSIO
N
| SEPTEM
B
ER 2
010
NOTE: All highway access ramp locations are preliminary and subject to extensive additional interim review and analysis.
C
apitol Avenue
rerouted to connect to
W
est Boulevard
Potential
for new
developm
ent
I-84 passes under
Sigourney
N
ew
I-84
access ram
ps
N
ew
developm
ent
including air-rights
Highw
ay
alignm
ent m
oved
closer to rail line
Relocated rail line
Relocated rail line
(under Asylum
)
N
ew
I-84
access ram
ps
N
ew
/replacem
ent
I-84 access (exit) ram
p
Union Station
expansion
Rail viaduct rem
oved—
opens up visual connections betw
een dow
ntow
n/Asylum
Hill/
Farm
ington Avenue
N
ew
ram
p passes
over rail line
Potential for new
developm
ent
(form
er access
ram
p location)
N
ew
interchange
• AsylumStreetviewcorridoropenedbyremovalofoverheadstructures:I-84eastboundbarrelrelocatedtobelowAsylumStreet;relocatedraillinepassesbelowstreet• I-84Highwayaccessmaintained—fourrampsprovideEB/WBconnections• 15-20acresofnewusablelandcreated/freedfordevelopmentandopenspace
• RailviaductremovedfromBushnellParkedge;railcorridorrelocatedtonorthsideofI-84• UnionStationannexdevelopedoppositestationtoproviderailstationaccess;busservicesremaininexistingstation• NewParkBoulevardstrengthenslocalstreetgrid,connectsCapitolAvenueandAsylumStreetandenhancesaccesstothePark
• NewStreetcreatedlinkingBroadStreetandNewParkBoulevard• CharacterofAsylumandBroadStreetsenhancedaspedestrianstreetsthroughnewdevelopmentatstreetedgeandstreetscapeimprovements• ChurchStreetconnectionbelowI-84isclosed
ASYLUM/BUSHNELL PARK
• NewmorecompactinterchangereplacesSissoninterchange• Usablelandfreedfordevelopmentoropenspaceincludingair-rightsdevelopmentoverhighwaybetweenSigourneyandLaurelStreets• Enhancedlocalstreetconnections• LaurelStreetpassesoverI-84• NewWestBoulevardextensioncreatedeastofSissonAvenue;thisnewstreetconnectsoverI-84andconnectstodowntown/FrogHollowviaCapitolAvenue
SISSON/WEST BOULEVARD• HighwaythatcurrentlypassesoverSigourneyStreetrelocatedtopassatgradebelowelevatedstreet;existinghighwayrampaccessfromSigourneymaintained• HighwaylocatedatgradebetweenBroadStreetandSigourney;couldbeslightlydepressedbetweenSigourneyandSissoninterchange
SIGOURNEY