FHWA NBI 2024 Inspection record Public-domain dataset

SMITH PLACE

Carrying SMITH PLACE over MILL BROOK

INT SMITH PLACE & RTE 128, Unknown County, Connecticut

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Good
43 t Inventory load rating Higher than 57% of rated Connecticut bridges

SMITH PLACE in Unknown County, Connecticut sits above 57% of rated Connecticut bridges on inventory load rating (43 t), while its 1955 build year is earlier than 76% of Unknown County's recorded-year cohort (471 bridges).

SMITH PLACE in Unknown County, Connecticut is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1955, it carries 3 rated components 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 CT:05187

INTERSTATE-ERA · CONCRETE · SINGLE-SPAN · SUB-LED · TRACE-ADT · HEAVY-LOAD · CAT-GOOD

  • INTERSTATE-ERA 1950–1979
  • CONCRETE Concrete
  • SINGLE-SPAN Single span
  • SUB-LED Substructure-led
  • TRACE-ADT Trace 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.

Structural health score

A composite of the deck, superstructure, and substructure NBI condition ratings plus the inventory load rating, benchmarked against the full national bridge corpus, distinct from the Good/Fair/Poor category above.

B+
Overall Score
77/100
SMITH PLACE
Deck Condition A+
8/9
NBI deck condition rating (0=failed, 9=excellent)
Superstructure Condition A+
8/9
NBI superstructure condition rating (0=failed, 9=excellent)
Substructure Condition C-
7/9
NBI substructure condition rating (0=failed, 9=excellent)
Load Rating B+
43 t
NBI inventory load rating vs the national corpus

Bridge Snapshot: SMITH PLACE

The SMITH PLACE bridge in Unknown County, Connecticut carries SMITH PLACE over MILL BROOK. It was built in 1955, making it 71 years old today. It was last reconstructed in 2018, extending its service life. The structure is built primarily of concrete and spans 1 section, stretching 8.2 meters (27 feet) end to end. Daily traffic averages 25 vehicles, placing it in the lower-traffic tier of Connecticut bridges. It is owned and maintained by Town/Township Highway Agency.

The latest FHWA inspection places the weakest component in good condition (see the full component ratings below). No reported major component scores in the Poor range under the current federal condition thresholds.

How SMITH PLACE compares

▼ 1.3
Load rating vs Connecticut average (44.1 t; 4,365 rated)
471
Bridges in Unknown County · 35 in Poor condition

Age against the county: built in 1955, earlier than 356 of Unknown County's 471 bridges with a recorded construction year (76%), against a county median build year of 1964. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

SMITH PLACE 42.8 t
Connecticut average (4,365 rated) 44.1 t

Live comparison across Connecticut bridges with a recorded inventory load rating (4,365 rated).

SMITH PLACE vs every rated Connecticut bridge

Inventory load rating (metric tons), FHWA NBI, this state

43 Top 43% higher than 57% of 4,365 bridges

rated Connecticut 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

Deck
8/9
Good (7–9)
Superstructure
8/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
42.8 t
NBI inventory level (metric tons)
Overall Condition
Good

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.

Unknown County inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 471 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
1955
Last Reconstructed
2018
Material
Concrete
Number of Spans
1
Structure Length
8.2 m (27 ft)
Deck Width
5.3 m (17 ft)
Owner
Town/Township Highway Agency
Avg Daily Traffic
25 vehicles/day
Structure Number
05187

Condition Analysis

  • • The deck (driving surface) is in good condition (8/9), showing no significant deterioration.
  • • The superstructure (beams and supports above the deck) rates good at 8/9, with no significant deterioration on file.
  • • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.

How to read this record

This page shows what the last federal inspection recorded, not whether SMITH PLACE 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 SMITH PLACE against other structures in Unknown County and across Connecticut. Connecticut 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 SMITH PLACE?

SMITH PLACE in Unknown County, Connecticut has a deck rating of 8/9, superstructure rating of 8/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is SMITH PLACE inspected?

SMITH PLACE'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 25 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. SMITH PLACE 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 SMITH PLACE?

SMITH PLACE has an NBI inventory load rating of 42.8 metric tons.

Who is responsible for maintaining SMITH PLACE?

SMITH PLACE is owned and maintained by Town/Township Highway Agency.

How old is SMITH PLACE and does age affect safety?

SMITH PLACE was built in 1955, making it 71 years old and last reconstructed in 2018.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details.

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.

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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.