FHWA NBI 2024 Inspection record Public-domain dataset

SHAKER HILL ROAD

Carrying SHAKER HILL ROAD over MASCOMA RIVER

100 FT SW JCT INV RTE. 50, Grafton, New Hampshire

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
40 t Inventory load rating

Bridge Snapshot: SHAKER HILL ROAD

The SHAKER HILL ROAD bridge in Grafton, New Hampshire carries SHAKER HILL ROAD over MASCOMA RIVER. It was built in 2003, making it 23 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 25.9 meters (85 feet) end to end. Daily traffic averages 1,921 vehicles, placing it in the moderately-trafficked tier of New Hampshire bridges. It is owned and maintained by State 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. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 39.8 metric tons.

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

How SHAKER HILL ROAD compares

▲ 1.6
Load rating vs New Hampshire average (38.2 t)
Top 44%
Higher load rating than 56% of New Hampshire bridges
544
Bridges in Grafton · 43 in Poor condition
SHAKER HILL ROAD 39.8 t
New Hampshire average 38.2 t

Live comparison across New Hampshire.

Historical Sufficiency Rating

PlainBridge-computed
91.2 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
24.0
Essentiality /15
14.2
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 How the historical reference is calculated.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

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

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

Structural Details

Year Built
2003
Material
Prestressed Concrete
Number of Spans
1
Structure Length
25.9 m (85 ft)
Deck Width
13.2 m (43 ft)
Owner
State Highway Agency
Avg Daily Traffic
1,921 vehicles/day
Structure Number
007700830015600

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • 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) rates good at 7/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether SHAKER 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 SHAKER HILL 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 SHAKER HILL ROAD?

SHAKER HILL ROAD in Grafton, New Hampshire 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 SHAKER HILL ROAD inspected?

SHAKER 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 1,921 vehicles per day.

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

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

SHAKER HILL ROAD has an NBI inventory load rating of 39.8 metric tons.

Who is responsible for maintaining SHAKER HILL ROAD?

SHAKER HILL ROAD is owned and maintained by State Highway Agency.

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

SHAKER HILL ROAD was built in 2003, making it 23 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.