FHWA NBI 2024 Inspection record Public-domain dataset

GRISTMILL ROAD

Carrying GRISTMILL ROAD over IRONSTONE CREEK

DOUGLASS PARK/RR TRESTLE, Berks, Pennsylvania

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
95 t Inventory load rating

Bridge Snapshot: GRISTMILL ROAD

The GRISTMILL ROAD bridge in Berks, Pennsylvania carries GRISTMILL ROAD over IRONSTONE CREEK. It was built in 1900, making it 126 years old today. It was last reconstructed in 2002, extending its service life. The structure is built primarily of steel and spans 2 sections, stretching 15.5 meters (51 feet) end to end. Daily traffic averages 200 vehicles, placing it in the lower-traffic tier of Pennsylvania bridges. It is owned and maintained by Town/Township Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 4/9. 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 95.3 metric tons.

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

How GRISTMILL ROAD compares

▲ 56.0
Load rating vs Pennsylvania average (39.3 t)
Top 1%
Higher load rating than 99% of Pennsylvania bridges
187
Bridges in Berks · 18 in Poor condition
GRISTMILL ROAD 95.3 t
Pennsylvania average 39.3 t

Live comparison across Pennsylvania.

Historical Sufficiency Rating

PlainBridge-computed
49.9 / 100 - historical 20–49.9 band
Structural adequacy /55
30.0
Serviceability /30
6.0
Essentiality /15
14.9
Special reductions
−1.0

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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
5/9
Fair (5–6)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
95.3 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1900
Last Reconstructed
2002
Material
Steel
Number of Spans
2
Structure Length
15.5 m (51 ft)
Deck Width
4.9 m (16 ft)
Owner
Town/Township Highway Agency
Avg Daily Traffic
200 vehicles/day
Structure Number
000000000005349

Condition Analysis

  • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • The substructure (piers and abutments) rates poor at 4/9, advanced deterioration that should be prioritized for repair.

How to read this record

GRISTMILL ROAD 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 GRISTMILL ROAD against other structures in Berks and across Pennsylvania. Pennsylvania 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 GRISTMILL ROAD?

GRISTMILL ROAD in Berks, Pennsylvania has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is GRISTMILL ROAD inspected?

GRISTMILL 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 200 vehicles per day.

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

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

GRISTMILL ROAD has an NBI inventory load rating of 95.3 metric tons.

Who is responsible for maintaining GRISTMILL ROAD?

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

How old is GRISTMILL ROAD and does age affect safety?

GRISTMILL ROAD was built in 1900, making it 126 years old and last reconstructed in 2002.

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.