Design Firm: Clark Patterson Lee Owner: Erie County ......Design Firm: Clark Patterson Lee Owner: Erie County Contractor: Union concrete corp. Presenter: Jason Havens, P.E. Understand

Design Firm: Clark Patterson Lee Owner: Erie County

Contractor: Union concrete corp. Presenter: Jason Havens, P.E.

Understand project feasibility based on three key components

Discuss significant design elements Present design solutions and value

engineering elements

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Project Location

Schedule: • 1 construction season 1.1 Mile full depth reconstruction including new storm,

curb/gutter, pedestrian facilities, water main betterment, etc. Bridge rehabilitation (186ft) Negative impact to traffic, specifically students and buses

Budget:

• Total construction budget topped out at <$5M No other projects to bid by ECDPW No field changes or change orders

Permitting:

• Article 16 DEC floodplain management 100yr flood plain

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Roadway Reconstruction – 1.1 Mile Rehabilitate Existing Bridge – 2 span steel girder w/ variable

wearing (168ft) Construction Budget = < $5 Million Construction Schedule – 1 construction season Clark Patterson Lee - design, construction admin. &

construction inspection

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

1.1 Miles Roadway Reconstruction, Bridge Rehabilitation

(Year 1)

Not Feasible / Over Budget

1 Construction Season

$5M over 1 Year

1 Contractor

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Feasible / Manageable Budget

3 Construction Seasons

$5M over 3 Years

3 phase design, up to 3

contractors

Revise scope

0.6 Miles Roadway Reconstruction

(Year 1)

Phase 1

0.25 Miles Roadway

Reconstruction (Year 2)

Phase 2

Bridge Remaining Roadway (Year 3)

Phase 3

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Amended Scope: • Rehabilitate superstructure and portions of

substructure, reconstruct ¼ mile of roadway with improved drainage and pedestrian access.

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Construction Budget: $1.8M • Estimated Cost: $1.68M Bridge = $1.3M Roadway = $380,000

Actual Construction Cost: $1.70M

Bridge = $1.31M Roadway = $390,000 Additional costs directly associated with expanded

scope

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Goals: • Compress schedule to accommodate end of

2013 school year. Begin construction June 2nd (school is out) No earlier start allowed

• Limit impact to 2014 school year Complete before plant shutdown Limit impact to bus traffic

• Avoid work in Cayuga Creek during wet season (fall)

• Substantial completion must occur within 5 months of start date

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

P r o j e c t C o n s t r u c t i o n T i m e L i n e

DEC – lead agency Floodplain management control

Less than a dozen in Erie County Identified Article 16 during Army Corps permit review Requires special conditions for restoration and storm

water pollution measures Lead to:

Reduced embankment footprint 1 year max for construction Further justifying phased construction

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Non-traversable

Non-traversable

Non-recoverable

Non-recoverable

Orientation: 4o° Skew 2 Spans – 84ft each

Total 168ft bridge length Rocker Bearings Armored Joints

Joint at Pier Safety Curbs/Sidewalks

Both sides of bridge Scupper drains Painted Steel Girders Spiral Shear Connectors

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

oOrientation: Maintain 4o° Skew

o Two-Span Continuous, with Intermediate Pier

o Elastomeric Bearings

o Armorless Joints (NYSDOT standard) oNo Joint at Pier

o Concrete Wearing Surface

oNo Safety Curbs/Sidewalks

oWash Deck – Water Drains at Fascia

oWeathering Steel Girders

o Shear Studs

Existing Conditions (1953) As-Built Design (2014)

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Geometry Remains the same – 40 degree skew

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

As-Built: 2014 Existing Conditions: 1953

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Continuous deck pour (6hrs – 245 cy, tie-downs at each end): Eliminated construction joints, saved 4 (critical) days

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Means and Methods Field change Remove pier stem to top of footing

New rebar cage tied to #6 footing bars Aluminum form work with adjustable scaffolding rails Eliminate second coffer dam Remove steel girders for future use Continuous deck pour

Value Added: Reduced construction schedule by 6 weeks (Schedule) Pier life cycle extended (Limit future work in Creek – Permit) Cost Neutral for these methods of construction (Budget) 7% of total bridge costs

Design: Remove 6” concrete

Remove pier stem

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Pier Stem Demo Cofferdam South aluminum form, in place

New rebar cage completion

Form work complete – 3 days

Scaffolding Rails

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Bridge Construction Sequence

Penora Street Bridge Rehabilitation - Jason Havens, P.E.

Bridge Construction Sequence

Thank you

Penora Street Bridge Rehabilitation - Jason Havens, P.E.