FHWA NBI 2024 Inspection record Public-domain dataset

STINSON LAKE ROAD

Carrying STINSON LAKE ROAD over STINSON BROOK

1.4 MI S ELLSWORTH TL, Grafton, New Hampshire

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
48 t Inventory load rating

Bridge Snapshot: STINSON LAKE ROAD

The STINSON LAKE ROAD bridge in Grafton, New Hampshire carries STINSON LAKE ROAD over STINSON BROOK. It was built in 1936, making it 90 years old today. It was last reconstructed in 1968, extending its service life. The structure is built primarily of concrete continuous and spans 2 sections, stretching 8.2 meters (27 feet) end to end. Daily traffic averages 410 vehicles, placing it in the lower-traffic tier of New Hampshire bridges. It is owned and maintained by State 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. Its NBI inventory load rating is 48.1 metric tons.

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

How STINSON LAKE ROAD compares

▲ 9.9
Load rating vs New Hampshire average (38.2 t)
Top 23%
Higher load rating than 77% of New Hampshire bridges
544
Bridges in Grafton · 43 in Poor condition
STINSON LAKE ROAD 48.1 t
New Hampshire average 38.2 t

Live comparison across New Hampshire.

Historical Sufficiency Rating

PlainBridge-computed
97.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
14.1
Special reductions
−2.0

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 How the historical reference is calculated.

Condition Ratings

Culvert
7/9
Good (7–9)
Inventory Load Rating
48.1 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1936
Last Reconstructed
1968
Material
Concrete Continuous
Number of Spans
2
Structure Length
8.2 m (27 ft)
Owner
State Highway Agency
Avg Daily Traffic
410 vehicles/day
Structure Number
022501430015400

How to read this record

This page shows what the last federal inspection recorded, not whether STINSON LAKE 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 STINSON LAKE ROAD against other structures in Grafton 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 STINSON LAKE ROAD?

STINSON LAKE ROAD in Grafton, New Hampshire on the FHWA's 0–9 scale.

How often is STINSON LAKE ROAD inspected?

STINSON LAKE 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 410 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. STINSON LAKE ROAD 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 STINSON LAKE ROAD?

STINSON LAKE ROAD has an NBI inventory load rating of 48.1 metric tons.

Who is responsible for maintaining STINSON LAKE ROAD?

STINSON LAKE ROAD is owned and maintained by State Highway Agency.

How old is STINSON LAKE ROAD and does age affect safety?

STINSON LAKE ROAD was built in 1936, making it 90 years old and last reconstructed in 1968.

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.