FHWA NBI 2024 Inspection record Public-domain dataset

FDR 35

Carrying FDR 35 over DOUGLAS BROOK

MAP 32, Carroll, New Hampshire

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
19 t Inventory load rating

Bridge Snapshot: FDR 35

The FDR 35 bridge in Carroll, New Hampshire carries FDR 35 over DOUGLAS BROOK. It was built in 1950, making it 76 years old today. The structure is built primarily of wood or timber and spans 1 section, stretching 8.5 meters (28 feet) end to end. Daily traffic averages 50 vehicles, placing it in the lower-traffic tier of New Hampshire bridges. It is owned and maintained by U.S. Forest Service.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 6/9, substructure at 3/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 18.8 metric tons.

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

How FDR 35 compares

▼ 19.4
Load rating vs New Hampshire average (38.2 t)
Bottom 11%
Lower load rating than 89% of New Hampshire bridges
193
Bridges in Carroll · 8 in Poor condition
FDR 35 18.8 t
New Hampshire average 38.2 t

Live comparison across New Hampshire.

Historical Sufficiency Rating

PlainBridge-computed
19.1 / 100 - historical under-20 band
Structural adequacy /55
0.0
Serviceability /30
8.0
Essentiality /15
11.1
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Superstructure
6/9
Fair (5–6)
Substructure
3/9
Poor (1–4)
Inventory Load Rating
18.8 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1950
Material
Wood or Timber
Number of Spans
1
Structure Length
8.5 m (28 ft)
Deck Width
4.9 m (16 ft)
Owner
U.S. Forest Service
Avg Daily Traffic
50 vehicles/day
Structure Number
092205000001069

Condition Analysis

  • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • At 3/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.

How to read this record

FDR 35 is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare FDR 35 against other structures in Carroll 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 FDR 35?

FDR 35 in Carroll, New Hampshire has a deck rating of 4/9, superstructure rating of 6/9, and substructure rating of 3/9 on the FHWA's 0–9 scale.

How often is FDR 35 inspected?

FDR 35'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 50 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. FDR 35 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for FDR 35?

FDR 35 has an NBI inventory load rating of 18.8 metric tons.

Who is responsible for maintaining FDR 35?

FDR 35 is owned and maintained by U.S. Forest Service.

How old is FDR 35 and does age affect safety?

FDR 35 was built in 1950, making it 76 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.