FHWA NBI 2024 Inspection record Public-domain dataset

MAPLE AVENUE

Carrying MAPLE AVENUE over ALLYN BROOK

0.20 MI S OF ROUTE 68, Middlesex, Connecticut

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
77 t Inventory load rating

Bridge Snapshot: MAPLE AVENUE

The MAPLE AVENUE bridge in Middlesex, Connecticut carries MAPLE AVENUE over ALLYN BROOK. It was built in 1957, making it 69 years old today. It was last reconstructed in 2004, extending its service life. The structure is built primarily of prestressed concrete and spans 1 section, stretching 9.1 meters (30 feet) end to end. Daily traffic averages 1,124 vehicles, placing it in the moderately-trafficked tier of Connecticut bridges. It is owned and maintained by Town/Township Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. 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 77.1 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How MAPLE AVENUE compares

▲ 32.2
Load rating vs Connecticut average (44.9 t)
Top 8%
Higher load rating than 92% of Connecticut bridges
304
Bridges in Middlesex · 10 in Poor condition
MAPLE AVENUE 77.1 t
Connecticut average 44.9 t

Live comparison across Connecticut.

Historical Sufficiency Rating

PlainBridge-computed
89.1 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
19.3
Essentiality /15
14.9
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

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

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

Structural Details

Year Built
1957
Last Reconstructed
2004
Material
Prestressed Concrete
Number of Spans
1
Structure Length
9.1 m (30 ft)
Deck Width
12.0 m (39 ft)
Owner
Town/Township Highway Agency
Avg Daily Traffic
1,124 vehicles/day
Structure Number
04850

Condition Analysis

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

How to read this record

This page shows what the last federal inspection recorded, not whether MAPLE AVENUE 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 MAPLE AVENUE against other structures in Middlesex 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 MAPLE AVENUE?

MAPLE AVENUE in Middlesex, Connecticut has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is MAPLE AVENUE inspected?

MAPLE AVENUE'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 1,124 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. MAPLE AVENUE 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 MAPLE AVENUE?

MAPLE AVENUE has an NBI inventory load rating of 77.1 metric tons.

Who is responsible for maintaining MAPLE AVENUE?

MAPLE AVENUE is owned and maintained by Town/Township Highway Agency.

How old is MAPLE AVENUE and does age affect safety?

MAPLE AVENUE was built in 1957, making it 69 years old and last reconstructed in 2004.

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

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.