FHWA NBI 2024 Inspection record Public-domain dataset

GREAT HILL ROAD

Carrying GREAT HILL ROAD over BRANCH BROOK

1.5 MI WEST OF ROUTE 77, New Haven, Connecticut

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
33 t Inventory load rating

Bridge Snapshot: GREAT HILL ROAD

The GREAT HILL ROAD bridge in New Haven, Connecticut carries GREAT HILL ROAD over BRANCH BROOK. It was built in 1994, making it 32 years old today. The structure is built primarily of concrete and spans 1 section, stretching 6.1 meters (20 feet) end to end. Daily traffic averages 608 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 records show superstructure at 5/9, substructure at 5/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 32.7 metric tons.

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

How GREAT HILL ROAD compares

▼ 12.2
Load rating vs Connecticut average (44.9 t)
Bottom 18%
Lower load rating than 82% of Connecticut bridges
891
Bridges in New Haven · 23 in Poor condition
GREAT HILL ROAD 32.7 t
Connecticut average 44.9 t

Live comparison across Connecticut.

Historical Sufficiency Rating

PlainBridge-computed
73.1 / 100 - historical 50–79.9 band
Structural adequacy /55
45.0
Serviceability /30
16.2
Essentiality /15
14.9
Special reductions
−3.0

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 How the historical reference is calculated.

Condition Ratings

Superstructure
5/9
Fair (5–6)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
32.7 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1994
Material
Concrete
Number of Spans
1
Structure Length
6.1 m (20 ft)
Deck Width
9.8 m (32 ft)
Owner
Town/Township Highway Agency
Avg Daily Traffic
608 vehicles/day
Structure Number
06520

Condition Analysis

  • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
  • The substructure (piers and abutments) rates fair at 5/9, minor deterioration that routine maintenance should address.

How to read this record

This page shows what the last federal inspection recorded, not whether GREAT HILL ROAD 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 GREAT HILL ROAD against other structures in New Haven 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 GREAT HILL ROAD?

GREAT HILL ROAD in New Haven, Connecticut, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is GREAT HILL ROAD inspected?

GREAT HILL ROAD'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 608 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. GREAT HILL ROAD 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 GREAT HILL ROAD?

GREAT HILL ROAD has an NBI inventory load rating of 32.7 metric tons.

Who is responsible for maintaining GREAT HILL ROAD?

GREAT HILL ROAD is owned and maintained by Town/Township Highway Agency.

How old is GREAT HILL ROAD and does age affect safety?

GREAT HILL ROAD was built in 1994, making it 32 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

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.