HIGH STREET
Carrying HIGH STREET over MELVIN RIVER
0.2 MI. RTE.109, Carroll, New Hampshire
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
HIGH STREET in Carroll, New Hampshire sits above 97% of rated New Hampshire bridges on inventory load rating (90 t), while its 1977 build year is earlier than 37% of Carroll's recorded-year cohort (193 bridges).
HIGH STREET in Carroll, New Hampshire is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1977, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good 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:025901410006800
INTERSTATE-ERA · STEEL · SINGLE-SPAN · CULVERT-LED · LOCAL-ADT · HEAVY-LOAD · CAT-GOOD
- INTERSTATE-ERA 1950–1979
- STEEL Steel
- SINGLE-SPAN Single span
- CULVERT-LED Culvert-led
- LOCAL-ADT Local ADT
- HEAVY-LOAD Heavy load
- CAT-GOOD Good
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: HIGH STREET
The HIGH STREET bridge in Carroll, New Hampshire carries HIGH STREET over MELVIN RIVER. It was built in 1977, making it 49 years old today. It was last reconstructed in 2009, extending its service life. The structure is built primarily of steel and spans 1 section, stretching 6.1 meters (20 feet) end to end. Daily traffic averages 263 vehicles, placing it in the lower-traffic tier of New Hampshire bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds.
How HIGH STREET compares
Age against the county: built in 1977, earlier than 71 of Carroll's 193 bridges with a recorded construction year (37%), against a county median build year of 1965. 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).
HIGH STREET vs every rated New Hampshire bridge
Inventory load rating (metric tons), FHWA NBI, this state
90 Top 3% higher than 97% 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.
Carroll inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 193 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
- 1977
- Last Reconstructed
- 2009
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 6.1 m (20 ft) 0
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 263 vehicles/day
- Structure Number
- 025901410006800
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether HIGH STREET 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 HIGH STREET against other structures in Carroll 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 HIGH STREET?
HIGH STREET in Carroll, New Hampshire on the FHWA's 0–9 scale.
How often is HIGH STREET inspected?
HIGH STREET'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 263 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. HIGH STREET 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 HIGH STREET?
HIGH STREET has an NBI inventory load rating of 89.8 metric tons.
Who is responsible for maintaining HIGH STREET?
HIGH STREET is owned and maintained by City/Municipal Highway Agency.
How old is HIGH STREET and does age affect safety?
HIGH STREET was built in 1977, making it 49 years old and last reconstructed in 2009.
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.