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NEW YORK STATE DEPARTMENT OF TRANSPORTATIONRegion 1
TEA/TUG PresentationTEA/TUG Presentation
Route 7 over I-87 (Exit 6)Route 7 over I-87 (Exit 6)Bridge ReplacementBridge Replacement
Town of ColonieTown of ColonieAlbany CountyAlbany County
NYSDOT D260830 - P.I.N. 1306.50NYSDOT D260830 - P.I.N. 1306.50
October 4, 2008Presented By:
Existing Conditions & NeedsExisting Conditions & Needs
Project Location Project Location
Existing Conditions & NeedsExisting Conditions & Needs
Bridge Condition
Adjacent Areas
Traffic and Safety Conditions
Bicycle and Pedestrian Accommodations
Bridge Condition
Adjacent Areas
Traffic and Safety Conditions
Bicycle and Pedestrian Accommodations
Bridge ConditionDeterioration Due to Age
Bridge ConditionDeterioration Due to Age
Existing Conditions & NeedsExisting Conditions & Needs
Surface Surface Deterioration on Deterioration on
BeamsBeams
Surface Surface Deterioration on Deterioration on
BeamsBeams
Deteriorated Deteriorated bearingsbearings
Deteriorated Deteriorated bearingsbearings
Planking under Planking under bridge to prevent bridge to prevent
damage to damage to vehiclesvehicles
Planking under Planking under bridge to prevent bridge to prevent
damage to damage to vehiclesvehicles
Existing Conditions & NeedsExisting Conditions & Needs
Existing Vertical Existing Vertical Clearance isClearance is
14’-2”14’-2”(1’-10” below the (1’-10” below the
standard)standard)
Existing Vertical Existing Vertical Clearance isClearance is
14’-2”14’-2”(1’-10” below the (1’-10” below the
standard)standard)
Several impacts Several impacts have damaged have damaged
beamsbeams
Several impacts Several impacts have damaged have damaged
beamsbeams
Bridge ConditionDeterioration Due to AgeDamage Due to Impacts
Bridge ConditionDeterioration Due to AgeDamage Due to Impacts
Existing Conditions & NeedsExisting Conditions & Needs
Bridge Condition
Adjacent Areas
Traffic and Safety Conditions
Bicycle and Pedestrian Accommodations
Bridge Condition
Adjacent Areas
Traffic and Safety Conditions
Bicycle and Pedestrian Accommodations
Adjacent Areas at Exit 6 and Adjacent Areas at Exit 6 and Along Route 7 / Route 2Along Route 7 / Route 2
Adjacent Areas at Exit 6 and Adjacent Areas at Exit 6 and Along Route 7 / Route 2Along Route 7 / Route 2
LEGENDLEGEND
HousesHousesandandApartmentsApartments
BusinessesBusinesses
Federal Federal WetlandsWetlands
State & State & FederalFederalWetlandsWetlands
PossiblePossibleHistoricHistoricSitesSites
StreamsStreams
Existing Conditions & NeedsExisting Conditions & Needs
Bridge Condition
Adjacent Areas
Traffic and Safety Conditions
Bicycle and Pedestrian Accommodations
Bridge Condition
Adjacent Areas
Traffic and Safety Conditions
Bicycle and Pedestrian Accommodations
Traffic and Safety ConsiderationsTraffic and Safety Considerationsat Exit 6 and Along Route 7 / Route 2at Exit 6 and Along Route 7 / Route 2
Traffic and Safety ConsiderationsTraffic and Safety Considerationsat Exit 6 and Along Route 7 / Route 2at Exit 6 and Along Route 7 / Route 2
Rte 7 and Rte 7 and Wade Road Wade Road IntersectionIntersection
Rte 7 and Rte 7 and Wade Road Wade Road IntersectionIntersection
Rte 7 andRte 7 andI-87 SBI-87 SB
IntersectionIntersection
Rte 7 andRte 7 andI-87 SBI-87 SB
IntersectionIntersection
Rte 7 andRte 7 andI-87 NBI-87 NB
IntersectionIntersection
Rte 7 andRte 7 andI-87 NBI-87 NB
IntersectionIntersection
Rte 7 and Rte 7 and Erin St. Erin St. (Latham (Latham Farms)Farms)
Rte 7 and Rte 7 and Erin St. Erin St. (Latham (Latham Farms)Farms)
Traffic Capacity and Delay Traffic Capacity and Delay Issues at all Signalized Issues at all Signalized
Intersections along Rte. 7 and Intersections along Rte. 7 and Rte. 2 Rte. 2
• Accident rates higher than roadway averagesAccident rates higher than roadway averages• Predominantly rear end and turning accidents at Predominantly rear end and turning accidents at
the signalized intersectionsthe signalized intersections
• Accident rates higher than roadway averagesAccident rates higher than roadway averages• Predominantly rear end and turning accidents at Predominantly rear end and turning accidents at
the signalized intersectionsthe signalized intersections
High traffic volumes affect the ability of the existing High traffic volumes affect the ability of the existing flush median to provide safe and effective accessflush median to provide safe and effective access
High traffic volumes affect the ability of the existing High traffic volumes affect the ability of the existing flush median to provide safe and effective accessflush median to provide safe and effective access
Existing Conditions & NeedsExisting Conditions & Needs
Bridge Condition
Adjacent Areas
Traffic and Safety Conditions
Bicycle and Pedestrian Accommodations
Bridge Condition
Adjacent Areas
Traffic and Safety Conditions
Bicycle and Pedestrian Accommodations
Existing Conditions & NeedsExisting Conditions & Needs
Bicycle and Pedestrian Accommodations
Bicycle and Pedestrian Accommodations
No dedicated pedestrian No dedicated pedestrian accommodationsaccommodations
No dedicated pedestrian No dedicated pedestrian accommodationsaccommodations
Existing bus Existing bus stops with no stops with no
linking sidewalkslinking sidewalks
Existing bus Existing bus stops with no stops with no
linking sidewalkslinking sidewalksBicyclists Bicyclists
accommodated accommodated within travel within travel
laneslanes
Bicyclists Bicyclists accommodated accommodated within travel within travel
laneslanes
Project ObjectivesProject Objectives
PRIMARY OBJECTIVESPRIMARY OBJECTIVES Provide bridge with 75-year unposted service lifeProvide bridge with 75-year unposted service life Provide standard vertical clearanceProvide standard vertical clearance Provide pavement with 20-year service lifeProvide pavement with 20-year service life Provide pedestrian accommodationsProvide pedestrian accommodations
PRIMARY OBJECTIVESPRIMARY OBJECTIVES Provide bridge with 75-year unposted service lifeProvide bridge with 75-year unposted service life Provide standard vertical clearanceProvide standard vertical clearance Provide pavement with 20-year service lifeProvide pavement with 20-year service life Provide pedestrian accommodationsProvide pedestrian accommodations
Project ObjectivesProject Objectives
SECONDARY OBJECTIVESSECONDARY OBJECTIVES Provide incremental traffic and safety Provide incremental traffic and safety
improvementsimprovements Allow future improvements on I-87Allow future improvements on I-87 Minimize effects to Businesses, Residents, and the Minimize effects to Businesses, Residents, and the
EnvironmentEnvironment Provide consistency with:Provide consistency with:
Town of Colonie’s Comprehensive PlanTown of Colonie’s Comprehensive Plan NY 7 / NY 2 Corridor Transportation and Land NY 7 / NY 2 Corridor Transportation and Land
Use StudyUse Study
SECONDARY OBJECTIVESSECONDARY OBJECTIVES Provide incremental traffic and safety Provide incremental traffic and safety
improvementsimprovements Allow future improvements on I-87Allow future improvements on I-87 Minimize effects to Businesses, Residents, and the Minimize effects to Businesses, Residents, and the
EnvironmentEnvironment Provide consistency with:Provide consistency with:
Town of Colonie’s Comprehensive PlanTown of Colonie’s Comprehensive Plan NY 7 / NY 2 Corridor Transportation and Land NY 7 / NY 2 Corridor Transportation and Land
Use StudyUse Study
14
Alternatives ConsideredAlternatives Considered
6 different interchange designs for Exit 6 Cloverleaf Partial Cloverleaf Flyovers Expanded Diamond
Dual Left Turn Diamond Triple Left Turn Diamond
Single Point Urban Interchange (SPUI)
6 different interchange designs for Exit 6 Cloverleaf Partial Cloverleaf Flyovers Expanded Diamond
Dual Left Turn Diamond Triple Left Turn Diamond
Single Point Urban Interchange (SPUI)
Alternatives ConsideredAlternatives Considered
Rankings of Ability Rankings of Ability to Increase Traffic to Increase Traffic Carrying CapacityCarrying Capacity
Rankings when Rankings when R.O.W. availability R.O.W. availability
is limitedis limited
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Nationwide survey of state engineers Nationwide survey of state engineers
Virginia Transportation Research Council (VTRC), Technical Report 99-R15
N/A
N/A
LEGENDLEGENDHousesHousesandandApartmentsApartments
BusinessesBusinesses
WetlandsWetlands
PossiblePossibleHistoricHistoricSitesSites
Cloverleaf AlternativeCloverleaf AlternativeCloverleaf AlternativeCloverleaf Alternative
POTENTIAL POTENTIAL IMPACTSIMPACTS
Displacement of Displacement of approximately 20 approximately 20
homeshomes
Displacement of over Displacement of over 10 businesses10 businesses
Significant Significant environmental impactsenvironmental impacts
Extensive land Extensive land purchasespurchases
Cloverleaf AlternativeCloverleaf Alternative is not is not feasible because of its feasible because of its
potential impactspotential impacts
Cloverleaf AlternativeCloverleaf Alternative is not is not feasible because of its feasible because of its
potential impactspotential impacts
Alternative Discarded
Alternative Discarded
LEGENDLEGENDHousesHousesandandApartmentsApartments
BusinessesBusinesses
WetlandsWetlands
PossiblePossibleHistoricHistoricSitesSites
Expanded Diamond Expanded Diamond AlternativeAlternative
Expanded Diamond Expanded Diamond AlternativeAlternative
POTENTIAL POTENTIAL IMPACTSIMPACTS
No displacements of No displacements of Homes Homes
Temporary effects to Temporary effects to businessesbusinesses
Minimal environmental Minimal environmental impactsimpacts
Minimal potential land Minimal potential land purchasespurchases
Expanded Diamond Expanded Diamond AlternativeAlternative is feasible because is feasible because
of its minimal effects on of its minimal effects on adjacent resourcesadjacent resources and its and its
potential to increase capacity potential to increase capacity at the interchangeat the interchange
Expanded Diamond Expanded Diamond AlternativeAlternative is feasible because is feasible because
of its minimal effects on of its minimal effects on adjacent resourcesadjacent resources and its and its
potential to increase capacity potential to increase capacity at the interchangeat the interchange
Alternative Retained
Alternative Retained
Major points of conflict occur at Major points of conflict occur at oneone location location
Through movements pass through Through movements pass through oneone intersection intersection
OneOne signal system controls the signal system controls the ramp and through movementsramp and through movements
Major points of conflict occur at Major points of conflict occur at oneone location location
Through movements pass through Through movements pass through oneone intersection intersection
OneOne signal system controls the signal system controls the ramp and through movementsramp and through movements
Single Point Urban InterchangeSingle Point Urban InterchangeConventional Diamond InterchangeConventional Diamond Interchange
Major points of conflict occur at Major points of conflict occur at twotwo locations locations
Through movements must pass Through movements must pass through through bothboth intersections intersections
TwoTwo signal systems control signal systems control interchange movementsinterchange movements
Major points of conflict occur at Major points of conflict occur at twotwo locations locations
Through movements must pass Through movements must pass through through bothboth intersections intersections
TwoTwo signal systems control signal systems control interchange movementsinterchange movements
What is a Single Point Urban Interchange (SPUI)?What is a Single Point Urban Interchange (SPUI)?What is a Single Point Urban Interchange (SPUI)?What is a Single Point Urban Interchange (SPUI)?
LEGENDLEGENDHousesHousesandandApartmentsApartments
BusinessesBusinesses
WetlandsWetlands
PossiblePossibleHistoricHistoricSitesSites
SPUI AlternativeSPUI AlternativeSPUI AlternativeSPUI Alternative
POTENTIAL POTENTIAL IMPACTSIMPACTS
No displacements of No displacements of Homes Homes
Temporary effects to Temporary effects to businessesbusinesses
Minimal environmentalMinimal environmentalImpactsImpacts
Minimal potential land Minimal potential land purchasespurchases
SPUI AlternativeSPUI Alternative is feasible is feasible because of its minimal effects because of its minimal effects on adjacent resourceson adjacent resources and its and its potential to increase capacity potential to increase capacity
at the interchangeat the interchange
SPUI AlternativeSPUI Alternative is feasible is feasible because of its minimal effects because of its minimal effects on adjacent resourceson adjacent resources and its and its potential to increase capacity potential to increase capacity
at the interchangeat the interchangeAlternative Retained
Alternative Retained
Preferred AlternativePreferred Alternative
The The Expanded DiamondExpanded Diamond and the and the SPUISPUI have have essentially the same engineering and essentially the same engineering and environmental considerations and right-of-way environmental considerations and right-of-way needs except for:needs except for:
Traffic Operations (Level of Service)Traffic Operations (Level of Service) CostCost
Preferred Alternative decision based on a Preferred Alternative decision based on a comparison of these two considerationscomparison of these two considerations
The The Expanded DiamondExpanded Diamond and the and the SPUISPUI have have essentially the same engineering and essentially the same engineering and environmental considerations and right-of-way environmental considerations and right-of-way needs except for:needs except for:
Traffic Operations (Level of Service)Traffic Operations (Level of Service) CostCost
Preferred Alternative decision based on a Preferred Alternative decision based on a comparison of these two considerationscomparison of these two considerations
Preferred AlternativePreferred Alternative
Single Point Urban InterchangeSingle Point Urban Interchange
Provides for more efficient Traffic Operations Provides for more efficient Traffic Operations on Route 7 / Route 2on Route 7 / Route 2
Provides reserve capacity for anticipated future Provides reserve capacity for anticipated future traffic growthtraffic growth
Provides higher benefit / cost ratio (reduced Provides higher benefit / cost ratio (reduced user costs)user costs) Dual Left Turn Diamond - $ 27 MDual Left Turn Diamond - $ 27 M SPUI - $ 32 MSPUI - $ 32 M
Single Point Urban InterchangeSingle Point Urban Interchange
Provides for more efficient Traffic Operations Provides for more efficient Traffic Operations on Route 7 / Route 2on Route 7 / Route 2
Provides reserve capacity for anticipated future Provides reserve capacity for anticipated future traffic growthtraffic growth
Provides higher benefit / cost ratio (reduced Provides higher benefit / cost ratio (reduced user costs)user costs) Dual Left Turn Diamond - $ 27 MDual Left Turn Diamond - $ 27 M SPUI - $ 32 MSPUI - $ 32 M
BEFOREBEFOREAFTERAFTER
SPUISPUISPUISPUI
Maintenance & Protection of TrafficMaintenance & Protection of Traffic
Project Schedule & Traffic ImpactsProject Schedule & Traffic Impacts
Minor Route 7/2 work
I-87 auxiliary lanes
Wetland construction LOW
MEDIUM
Route7/2
Bridge foundations and walls construction
Route 7 construction west of interchange
Sparrowbush Road improvements
Bridge superstructure HIGH
I-87Ramps
LOWLOW
LOW
LOW
LOW LOW
LOW
LOW
LOW
Route 7/2 construction at interchange
Ramp construction
HIGH
HIGH
LOW LOW
MEDIUM
MEDIUMLOW
Miscellaneous Paving LOW LOW LOW
Landscaping
Cleanup
LOW
LOW
LOW
LOW
LOW
LOW
2008
2010
2011
2009
MEDIUM
MEDIUM
PLANNEDCONSTRUCTION WORK
ANTICIPATED TRAFFIC IMPACT LEVEL
MEDIUM LOW
LOW
LOW
MEDIUM
MEDIUM
YE
AR
Preferred AlternativePreferred Alternative
2-Stage Bridge Construction2-Stage Bridge Construction
Maintains all existing movementsMaintains all existing movements Exit 6 remains openExit 6 remains open Reduces vehicle diversionsReduces vehicle diversions Minimizes affects to adjacent businessesMinimizes affects to adjacent businesses Minimizes construction durationMinimizes construction duration MINIMIZES COSTMINIMIZES COST
2-Stage Bridge Construction2-Stage Bridge Construction
Maintains all existing movementsMaintains all existing movements Exit 6 remains openExit 6 remains open Reduces vehicle diversionsReduces vehicle diversions Minimizes affects to adjacent businessesMinimizes affects to adjacent businesses Minimizes construction durationMinimizes construction duration MINIMIZES COSTMINIMIZES COST
Maintenance & Protection of TrafficMaintenance & Protection of Traffic
Preferred AlternativePreferred AlternativeTravel Demand Management (TDM) PlanTravel Demand Management (TDM) Plan
Primarily commercial
Business
Primarily Retail Business General PM
major traffic patterns
Greatest diversion of traffic will be realized by Targeting Commuters to
this Area
Project needs to minimize
diversions from this area
General AM major traffic
patterns
Preferred AlternativePreferred Alternative
TDM Plan Key elementsTDM Plan Key elements
Public outreach through multiple media formatsPublic outreach through multiple media formats Prior comprehensive outreach to businessesPrior comprehensive outreach to businesses ““Real Time” traffic monitoring and information via Real Time” traffic monitoring and information via
the web and other technologiesthe web and other technologies Traffic diversions via alternate routes targeting Traffic diversions via alternate routes targeting
commuterscommuters
TDM Plan Key elementsTDM Plan Key elements
Public outreach through multiple media formatsPublic outreach through multiple media formats Prior comprehensive outreach to businessesPrior comprehensive outreach to businesses ““Real Time” traffic monitoring and information via Real Time” traffic monitoring and information via
the web and other technologiesthe web and other technologies Traffic diversions via alternate routes targeting Traffic diversions via alternate routes targeting
commuterscommuters
Travel Demand Management (TDM) PlanTravel Demand Management (TDM) Plan
Estimate and Bid PricesEstimate and Bid Prices
Engineer’s Estimate and Letting TimelineEngineer’s Estimate and Letting Timeline
Engineer’s Estimate prepared between January Engineer’s Estimate prepared between January and early March 2008and early March 2008
Letting June 10, 2008Letting June 10, 2008 Approximately 3 months between preparation Approximately 3 months between preparation
of Estimate and Lettingof Estimate and Letting
Engineer’s Estimate and Letting TimelineEngineer’s Estimate and Letting Timeline
Engineer’s Estimate prepared between January Engineer’s Estimate prepared between January and early March 2008and early March 2008
Letting June 10, 2008Letting June 10, 2008 Approximately 3 months between preparation Approximately 3 months between preparation
of Estimate and Lettingof Estimate and Letting
Estimate and Bid PricesEstimate and Bid Prices
Engineer’s Estimate and BidEngineer’s Estimate and Bid Engineer’s Estimate:Engineer’s Estimate:
$32,238,551.07$32,238,551.07 2 bidders2 bidders
$39,777,861.39 – Lancaster Development$39,777,861.39 – Lancaster Development
$40,442,070.79 – Kubricky$40,442,070.79 – Kubricky
Bid Separation – Bid Separation – 1.7% of overall bid1.7% of overall bid
Low Bid – Low Bid – 21.9 % higher than engineer’s estimate21.9 % higher than engineer’s estimate
Engineer’s Estimate and BidEngineer’s Estimate and Bid Engineer’s Estimate:Engineer’s Estimate:
$32,238,551.07$32,238,551.07 2 bidders2 bidders
$39,777,861.39 – Lancaster Development$39,777,861.39 – Lancaster Development
$40,442,070.79 – Kubricky$40,442,070.79 – Kubricky
Bid Separation – Bid Separation – 1.7% of overall bid1.7% of overall bid
Low Bid – Low Bid – 21.9 % higher than engineer’s estimate21.9 % higher than engineer’s estimate
Estimate and Bid PricesEstimate and Bid Prices
WHY?WHY?WHY?WHY?
Preferred AlternativePreferred Alternative
Key indexesKey indexesKey indexesKey indexes
Engineer’s Estimate and LettingEngineer’s Estimate and Letting
Fuel Price per gallon
$2.00$2.20$2.40$2.60$2.80$3.00$3.20$3.40$3.60
Avg. Fuel Price
Engineer’s Estimate Letting
25% +/- Increase
Preferred AlternativePreferred Alternative
Key indexesKey indexesKey indexesKey indexes
Engineer’s Estimate and LettingEngineer’s Estimate and Letting
Asphalt Binder Price per ton
$300.00$320.00$340.00$360.00$380.00$400.00$420.00$440.00$460.00$480.00$500.00
Asphalt Binder
Engineer’s Estimate Letting
32% +/- Increase
Preferred AlternativePreferred Alternative
Key indexesKey indexesKey indexesKey indexes
Engineer’s Estimate and LettingEngineer’s Estimate and Letting
Steel Index - PPI
230
250
270
290
310
330
350
Steel Price Index
Engineer’s Estimate Letting
32% +/- Increase
Estimate and Bid PricesEstimate and Bid Prices
Analysis:Analysis:
Of the 497 contract items, 25 accounted for Of the 497 contract items, 25 accounted for 95.7% of the cost overrun.95.7% of the cost overrun.
All of the 25 items were contingent on material, All of the 25 items were contingent on material, manufacturing, transportation, and installation manufacturing, transportation, and installation costs that can be directly linked to oil prices.costs that can be directly linked to oil prices.
Steel, Steel, Asphalt, earthwork, concrete, etc. Asphalt, earthwork, concrete, etc.
Analysis:Analysis:
Of the 497 contract items, 25 accounted for Of the 497 contract items, 25 accounted for 95.7% of the cost overrun.95.7% of the cost overrun.
All of the 25 items were contingent on material, All of the 25 items were contingent on material, manufacturing, transportation, and installation manufacturing, transportation, and installation costs that can be directly linked to oil prices.costs that can be directly linked to oil prices.
Steel, Steel, Asphalt, earthwork, concrete, etc. Asphalt, earthwork, concrete, etc.
Estimate and Bid PricesEstimate and Bid Prices
Conclusion:Conclusion:
Unforeseen cost increases in key items between Unforeseen cost increases in key items between the dates the Engineer’s Estimate was prepared the dates the Engineer’s Estimate was prepared and the Letting date contributed to the increase and the Letting date contributed to the increase in project cost. in project cost.
Contract was Awarded and in currently under Contract was Awarded and in currently under construction.construction.
Conclusion:Conclusion:
Unforeseen cost increases in key items between Unforeseen cost increases in key items between the dates the Engineer’s Estimate was prepared the dates the Engineer’s Estimate was prepared and the Letting date contributed to the increase and the Letting date contributed to the increase in project cost. in project cost.
Contract was Awarded and in currently under Contract was Awarded and in currently under construction.construction.
Construction RecordkeepingConstruction Recordkeeping
Exit 6 is a SiteManager pilot project for NYSDOT Exit 6 is a SiteManager pilot project for NYSDOT Region 1 Region 1
Exit 6 is a SiteManager pilot project for NYSDOT Exit 6 is a SiteManager pilot project for NYSDOT Region 1 Region 1
Preferred AlternativePreferred Alternative
Project’s Project Information OfficeProject’s Project Information Office 4 Avis Drive, Suite 110, Latham, NY 121104 Avis Drive, Suite 110, Latham, NY 12110
Entrance is at the rear of the buildingEntrance is at the rear of the building
Phone:Phone:(518) 220-9519(518) 220-9519
Email:Email:[email protected]@dot.state.ny.us
Web:Web:
Project’s Project Information OfficeProject’s Project Information Office 4 Avis Drive, Suite 110, Latham, NY 121104 Avis Drive, Suite 110, Latham, NY 12110
Entrance is at the rear of the buildingEntrance is at the rear of the building
Phone:Phone:(518) 220-9519(518) 220-9519
Email:Email:[email protected]@dot.state.ny.us
Web:Web:
Where to get more informationWhere to get more information
www.exit6.orgwww.exit6.org
Preferred AlternativePreferred Alternative
Questions?Questions?Questions?Questions?
Questions & CommentsQuestions & Comments