FHWA NBI 2024 Inspection record Public-domain dataset

ROUNDABOUT RD

Carrying ROUNDABOUT RD over NEZINSCOT R.

.3 MI SWLY JCT OF 117, Oxford, Maine

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Fair
42 t Inventory load rating Higher than 65% of rated Maine bridges

ROUNDABOUT RD in Oxford, Maine sits above 65% of rated Maine bridges on inventory load rating (42 t), while its 1977 build year is earlier than 40% of Oxford's recorded-year cohort (252 bridges).

ROUNDABOUT RD in Oxford, Maine is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1977, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair 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 ME:5451

INTERSTATE-ERA · STEEL · SINGLE-SPAN · TIED-CTRL · ARTERIAL-ADT · HEAVY-LOAD · CAT-FAIR

  • INTERSTATE-ERA 1950–1979
  • STEEL Steel
  • SINGLE-SPAN Single span
  • TIED-CTRL Tied control
  • ARTERIAL-ADT Arterial ADT
  • HEAVY-LOAD Heavy load
  • CAT-FAIR Fair

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: ROUNDABOUT RD

The ROUNDABOUT RD bridge in Oxford, Maine carries ROUNDABOUT RD over NEZINSCOT R.. It was built in 1977, making it 49 years old today. The structure is built primarily of steel and spans 1 section, stretching 38.3 meters (126 feet) end to end. Daily traffic averages 1,156 vehicles, placing it in the moderately-trafficked tier of Maine bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range.

How ROUNDABOUT RD compares

▲ 2.7
Load rating vs Maine average (39.1 t; 2,518 rated)
252
Bridges in Oxford · 44 in Poor condition

Age against the county: built in 1977, earlier than 102 of Oxford's 252 bridges with a recorded construction year (40%), against a county median build year of 1964. This is one of the newer structures in its county.

ROUNDABOUT RD 41.8 t
Maine average (2,518 rated) 39.1 t

Live comparison across Maine bridges with a recorded inventory load rating (2,518 rated).

ROUNDABOUT RD vs every rated Maine bridge

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

42 Top 35% higher than 65% of 2,518 bridges

rated Maine 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
6/9
Fair (5–6)
Superstructure
7/9
Good (7–9)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
41.8 t
NBI inventory level (metric tons)
Overall Condition
Fair

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.

Oxford inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 252 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
Material
Steel
Number of Spans
1
Structure Length
38.3 m (126 ft)
Deck Width
9.8 m (32 ft)
Owner
State Highway Agency
Avg Daily Traffic
1,156 vehicles/day
Structure Number
5451

Condition Analysis

  • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
  • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether ROUNDABOUT 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 ROUNDABOUT RD against other structures in Oxford and across Maine. Maine 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 ROUNDABOUT RD?

ROUNDABOUT RD in Oxford, Maine has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is ROUNDABOUT RD inspected?

ROUNDABOUT 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 1,156 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. ROUNDABOUT RD is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for ROUNDABOUT RD?

ROUNDABOUT RD has an NBI inventory load rating of 41.8 metric tons.

Who is responsible for maintaining ROUNDABOUT RD?

ROUNDABOUT RD is owned and maintained by State Highway Agency.

How old is ROUNDABOUT RD and does age affect safety?

ROUNDABOUT RD was built in 1977, making it 49 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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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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.