SPRAIN BROOK PARKWAY SB/PAYNE STREET

In order to address the deficiencies of the Mechanically Stabilized Earth System wall, as well as the bridges' decks and superstructures, this project will replace the Sprain Brook Parkway southbound bridge over Payne Street with new longer span bridge. This will allow the removal of some of the Mechanically Stabilized Earth System wall between the existing abutments and the proposed abutments. It will also eliminate any stability concerns regarding the bridge since the proposed new bridge will be founded on piles which will carry the loads without utilizing the Mechanically Stabilized Earth System abutments and retaining/wing walls. The new bridge will be a steel bridge with integral abutments. On the Payne Street side of the Mechanically Stabilized Earth Syatem, a H-pile and lagging wall (with concrete coating/layer) will be incorporated in such a way that the Mechanically Stabilized Earth System wall will not be relied upon for any structural stability for the new bridge structure. The new bridge will be constructed in a single stage. The Sprain Brook Parkway currently has three lanes in each direction; during construction, the Sprain Brook southbound traffic will be reduced to two lanes and crossed over onto the Sprain Brook Parkway northbound bridge. For this traffic cross-over to operate, the northbound Sprain Brook Parkway will also be reduced to two lanes during construction, so that a total of four lanes of traffic separated by a temporary concrete barrier can be carried on the Sprain Brook Parkway northbound bridge. This project is located in the Town of Greenburgh in Westchester County.

Project Status

• The project has been Completed Project.
• The Bid Opening was on 04/20/2017

Project Schedule

**Schedule Variance Key:
● Red - Current Schedule Variance is > 10% of Original Completion
● Yellow - Current Schedule Variance is > 5% and <=10% of Original Completion
● Green - Current Schedule Variance is within 5% of Original Completion

Construction Costs

**Cost Variance Key:
● Red - Current Construction Costs are > 10% of Contract Award Cost
● Yellow - Current Construction Costs > 5% and <=10% of Contract Award Cost
● Green - Current Construction Costs are within 5% of Contract Award Cost

This project receives funding from the following sources:

Federal: Yes

State: Yes

Local: No

*Project Schedule Definitions:
Original Contract Completion Date - This is a contractual date,at the time the Contractor is Awarded the contract, representing when the Contractor is obligated to complete all of the work required in the contract and will no longer have a presence within the highway Right-of-Way.

Estimated Substantial Completion Date - This is the day the public (including vehicles and pedestrians) has full and unrestricted use and benefit of the facilities both from the operational and safety standpoint.