NORTH PEMBROKE RD
Carrying NORTH PEMBROKE RD over SOUCOOK RIVER
AT PEMBROKE TL, Merrimack, New Hampshire
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: NORTH PEMBROKE RD
The NORTH PEMBROKE RD bridge in Merrimack, New Hampshire carries NORTH PEMBROKE RD over SOUCOOK RIVER. It was built in 1959, making it 67 years old today. It was last reconstructed in 2022, extending its service life. The structure is built primarily of concrete and spans 1 section, stretching 36.9 meters (121 feet) end to end. Daily traffic averages 4,598 vehicles, placing it in the moderately-trafficked tier of New Hampshire bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show a deck rating of 9/9, superstructure at 9/9, substructure at 9/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 86.5 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How NORTH PEMBROKE RD compares
Live comparison across New Hampshire.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1959
- Last Reconstructed
- 2022
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 36.9 m (121 ft)
- Deck Width
- 10.1 m (33 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 4,598 vehicles/day
- Structure Number
- 005201830015600
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates good at 9/9, with no significant deterioration on file.
- • The superstructure (beams and supports above the deck) rates good at 9/9, with no significant deterioration on file.
- • The substructure (piers and abutments) is in good condition (9/9), showing no significant deterioration.
How to read this record
This page shows what the last federal inspection recorded, not whether NORTH PEMBROKE RD is safe to cross today. Here is how to use it.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
- Compare NORTH PEMBROKE RD against other structures in Merrimack and across New Hampshire. New Hampshire bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for NORTH PEMBROKE RD?
NORTH PEMBROKE RD in Merrimack, New Hampshire has a deck rating of 9/9, superstructure rating of 9/9, and substructure rating of 9/9 on the FHWA's 0–9 scale.
How often is NORTH PEMBROKE RD inspected?
NORTH PEMBROKE RD's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 4,598 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. NORTH PEMBROKE RD is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for NORTH PEMBROKE RD?
NORTH PEMBROKE RD has an NBI inventory load rating of 86.5 metric tons.
Who is responsible for maintaining NORTH PEMBROKE RD?
NORTH PEMBROKE RD is owned and maintained by City/Municipal Highway Agency.
How old is NORTH PEMBROKE RD and does age affect safety?
NORTH PEMBROKE RD was built in 1959, making it 67 years old and last reconstructed in 2022.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.