FHWA NBI 2024 Inspection record Public-domain dataset

BASE STATION ROAD

Carrying BASE STATION ROAD over BLACK BROOK

2.98 MI NE JCT RTE US 302, Coos, New Hampshire

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
25 t Inventory load rating

Bridge Snapshot: BASE STATION ROAD

The BASE STATION ROAD bridge in Coos, New Hampshire carries BASE STATION ROAD over BLACK BROOK. It was built in 1934, making it 92 years old today. It was last reconstructed in 1969, extending its service life. The structure is built primarily of concrete and spans 1 section, stretching 7.3 meters (24 feet) end to end. Daily traffic averages 1,775 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 culvert at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 24.9 metric tons.

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

How BASE STATION ROAD compares

▼ 13.3
Load rating vs New Hampshire average (38.2 t)
Bottom 22%
Lower load rating than 78% of New Hampshire bridges
188
Bridges in Coos · 12 in Poor condition
BASE STATION ROAD 24.9 t
New Hampshire average 38.2 t

Live comparison across New Hampshire.

Historical Sufficiency Rating

PlainBridge-computed
90.6 / 100 - historical 80–100 band
Structural adequacy /55
48.3
Serviceability /30
30.0
Essentiality /15
14.3
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Inventory Load Rating
24.9 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1934
Last Reconstructed
1969
Material
Concrete
Number of Spans
1
Structure Length
7.3 m (24 ft)
Owner
State Highway Agency
Avg Daily Traffic
1,775 vehicles/day
Structure Number
005550670017900

How to read this record

This page shows what the last federal inspection recorded, not whether BASE STATION 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 BASE STATION ROAD against other structures in Coos 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 BASE STATION ROAD?

BASE STATION ROAD in Coos, New Hampshire on the FHWA's 0–9 scale.

How often is BASE STATION ROAD inspected?

BASE STATION 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 1,775 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. BASE STATION 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 BASE STATION ROAD?

BASE STATION ROAD has an NBI inventory load rating of 24.9 metric tons.

Who is responsible for maintaining BASE STATION ROAD?

BASE STATION ROAD is owned and maintained by State Highway Agency.

How old is BASE STATION ROAD and does age affect safety?

BASE STATION ROAD was built in 1934, making it 92 years old and last reconstructed in 1969.

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.