I. Existing Conditions

II. Who Is Impacted

III. The Challenge – Satisfy Everyone!

IV. Construction

V. Summary

VI. Questions

– Built in 1934, Posted for 17 tons

– Jack arch structure with concrete and steel deterioration

– Insufficient bridge width for use• Vehicles, pedestrians, snowmobiles

• Existing rail-to-rail – 26’; Proposed Width – 34’

– Abutment footing undermining

– Asbestos paint on girders and railings

– Poor drainage

– No record plans for bridge

– Subsurface Conditions – Sand

– Locate septic systems

– New Deck at Restaurant - installed prior to construction

Project Influences

Project

Community

• Businesses• Residences• Schedule• Pedestrians• Recreational

vehicles

Agencies

• Funding• Permitting• Utilities

• Funding– FHWA, NYSDOT and County

• Utility Companies– National Grid, Frontier, Time Warner Cable, Turkey

Water Works (Local Water) – all relocated

• Permitting– NYSDOT, APA, NYSDEC and USACE

• Adjacent Private Residences– Driveways, septic systems

• Adjacent Business owners– Need to stay open during tourist season

• Waterway Under Bridge

• Pedestrians, Snowmobile Trail

PRIVATE

HOTEL

MARINA

CHURCH

SOUTH SHORE ROAD

SEPTIC

WELL

Schedule– Tourist season - July and August

• Town - no construction

– No Detour Route• Staged Construction

– Shortened construction• Mid April to Mid September

Schedule– Minimize Concrete Pours

• Cure time impact

– Snowmobile Trail• Open December 1 to March 31

• Goal– Bridge open by July 4th

• (Schedule April 1 to July 1)

– 13 weeks???

• Alternatives Considered– Superstructure Replacement

• Existing abutment widened

• 75 year old concrete

• No record plans

• Cost 95% of replacement

– Replacement Structure Built Under Existing• Town – no reduction to clearance of navigable

waterway

• Alternatives Considered– Replacement w/ C.I.P. Concrete Abutments with

Spread Footings• Footings below stream bed for scour prevention

• Cofferdams needed

– Replacement w/ Integral Abutments• Steel H-Piles

• Prestressed concrete beams

• Asphalt Wearing Surface

• Replacement with Integral Abutments

– Precast saves time

– Limited demolition/excavation

• How can we build within constraints of schedule?

• Contractor and Town

– Insufficient space for crane staging

– Traffic Control• Too close to Route 28

– Too much time needed for staged construction

Now what?

• Eureka!!!– Town Highway Superindendent

• Existing snowmobile trail for detour route

• Town owns majority of R.O.W.

Time to pull out the ACE up my

sleeve!

Piece of

Cake!

• Build Detour in Fall before December 1

• Relocate overhead utilities prior to April 1

• Open Detour - April 1

• Close Bridge - April 1

• Open New Bridge - July 1

• Project Completion - July 31

Design Speed - 20 MPH

2 – 10 ft travel lanes

Detour Profile

• Horizontal & Vertical close to existing

• Helps keep vehicle speed down!

• Project completed on June 30

• Project also included:– Separate C.I.P. u-wings with spread footings

– 60 ft long, 8 ft high tapered C.I.P retaining wall with spread footing

– Closed drainage

– Thermoplastic Snowmobile Crossing

• Permits– APA – wetlands along detour

– NYSDEC – stream restrictions for salmon spawning

– USACE – waterway

– NYSDOT Highway Work Permit – new drainage structure on Route 28 and construction signs

• Financials– Engineers Estimate: $1.4 M

– Low Bid: $1.2 M

– Final Construction Cost: $1.1 M

Thorough Planning– Construction Schedule discussed with contractor

before design

– Utility Agreements – relocated prior to April 1

– Bid late summer allowing contractor time to plan for spring construction

– Liquidated damages provisions• Detour completion December 1

• Bridge open July 1

Team Effort– County – overall project management

– NYSDOT – R.O.W. acquisition

– Town – agreement with Marina and local public relations

Public Involvement– Design - 2 public meetings

– Construction – Town Hall meetings

• You can never have too much communication with your team

• Don’t be afraid to talk to local people

• Think outside the box

• Construction schedule is VERY important!

1. What is the name of the unique environmental agency involved with this project?

– APA

2. Who contributed to the “solution” for the project detour?

– Town Highway Superintendent & Dick Payne

3. What was the design speed used for the detour road?

– 20 MPH

4. Besides vehicles and pedestrians, what else used the bridge for a crossing?

– Snowmobiles

5. How many weeks did the bridge construction take?

– 13 weeks

6. What material was the temporary pedestrian bridge made out of?

– Aluminum

7. What was the existing span of the bridge?– 49 feet

8. How long were the new steel h-piles?– 100 feet

9. What type of abutment was used for the new bridge?

– Integral

10. How many liquidated damage provisions were used?

– 2 (1 – detour completion , 1 – bridge opening)