
Example

Greenfield Parkway Bridge Project
Bridge is NOW OPEN.
Th bridge failed on Friday 1/26/2024. Preliminary investigations are complete and repair plans are being prepared.
State Aid Bridge (SAB) Project Design Schedule
*the following dates are our best estimates and are subject to change*
Project Name: Bedford
Project Number: 21684
Project Description: Greenfield Parkway over Riddle Brook, Bridge No. 157/068, SAB Project: Bridge Replacement
Funding Source: SAB
Project Manager: Brian Desfosses, PE
Target Dates (Subject to change)
-
Start Engineering Study - 4/26/2024
-
Approve Engineering Study - 9/3/2024
-
Approve Preliminary Design - 9/27/2024
-
Begin Final Design and Right-of-Way (ROW) Acquisition Process - 10/11/2024
-
Complete National Environmental Policy Act (NEPA) Process - 10/30/2024
-
Receive Notice to Proceed to Advertise Project from NHDOT - 12/11/2024
-
Advertising Date - 12/11/2024
-
March Ballot for bid award - March 2025
-
Construction Completion - December 2025
Plans: Greenfield Bridge Plans
Schedule: Greenfield Bridge Proposed Timeline
Contract Specs: Proposal
Click HERE to view the latest DPW report related to this project.
Click HERE to view the final Geotechnical Engineering Report.
Task | Total Hours |
|---|---|
Engineering Study Phase 1 | |
Evaluate Drainage Area | 6 |
Wetland Delineation and Classification | 0 |
Stream Crossing Assessment | 16 |
Field Survey, ROW, & Base Plan Development | 51 |
Bridge, Channel, and Site Inspection | 8 |
Develop Design Criteria | 10 |
Develop Roadway Improvement Alternatives | 27 |
Develop Replacement Bridge Alternatives | 40 |
Develop Riverine Hydrologic Study | 32 |
Prepare Hydraulic Study for Bridge | 80 |
Develop Scour Studies for Bridge | 40 |
Photo Gallery
![]() Crane | ![]() Pile Driving | ![]() Cofferdam |
|---|---|---|
![]() | ![]() Bridge Closure | ![]() Collapsed Pavement |
![]() Further Collapsing of Pavement | ![]() Drone Shot of Detached Metal Arch | ![]() View of Detached Metal Arch |
![]() Close Up Drone Shot of Collapsed Metal Arch |










