US202 NH 9
Carrying US202 NH 9 over ASH BROOK
1 MI FROM CURRIER RD, Merrimack, New Hampshire
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
US202 NH 9 in Merrimack, New Hampshire sits above 11% of rated New Hampshire bridges on inventory load rating (20 t), while its 1970 build year is earlier than 36% of Merrimack's recorded-year cohort (326 bridges).
US202 NH 9 in Merrimack, New Hampshire is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1970, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 3. The lowest applicable rating sets the federal condition category, so this Poor result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure NH:005201470002800
INTERSTATE-ERA · STEEL · MULTI-SPAN · CULVERT-LED · ARTERIAL-ADT · LIGHT-LOAD · CAT-POOR
- INTERSTATE-ERA 1950–1979
- STEEL Steel
- MULTI-SPAN 3 spans
- CULVERT-LED Culvert-led
- ARTERIAL-ADT Arterial ADT
- LIGHT-LOAD Light load
- CAT-POOR Poor
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: US202 NH 9
The US202 NH 9 bridge in Merrimack, New Hampshire carries US202 NH 9 over ASH BROOK. It was built in 1970, making it 56 years old today. The structure is built primarily of steel and spans 3 sections, stretching 9.1 meters (30 feet) end to end. Daily traffic averages 2,807 vehicles, placing it in the moderately-trafficked tier of New Hampshire bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show culvert at 3/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules.
How US202 NH 9 compares
Age against the county: built in 1970, earlier than 117 of Merrimack's 326 bridges with a recorded construction year (36%), against a county median build year of 1966. This is one of the newer structures in its county.
Live comparison across New Hampshire bridges with a recorded inventory load rating (2,540 of 2,542 rated).
US202 NH 9 vs every rated New Hampshire bridge
Inventory load rating (metric tons), FHWA NBI, this state
20 Top 89% higher than 11% of 2,540 bridges
rated New Hampshire bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Merrimack inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 326 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1970
- Material
- Steel
- Number of Spans
- 3
- Structure Length
- 9.1 m (30 ft) 0
- Owner
- State Highway Agency
- Avg Daily Traffic
- 2,807 vehicles/day
- Structure Number
- 005201470002800
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
US202 NH 9 is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare US202 NH 9 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 US202 NH 9?
US202 NH 9 in Merrimack, New Hampshire on the FHWA's 0–9 scale.
How often is US202 NH 9 inspected?
US202 NH 9'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 2,807 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. US202 NH 9 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for US202 NH 9?
US202 NH 9 has an NBI inventory load rating of 19.6 metric tons.
Who is responsible for maintaining US202 NH 9?
US202 NH 9 is owned and maintained by State Highway Agency.
How old is US202 NH 9 and does age affect safety?
US202 NH 9 was built in 1970, making it 56 years old.
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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.