FHWA NBI 2024 Inspection record Public-domain dataset

RED MILL RD

Carrying RED MILL RD over AMTRAK

EAST OF NEWARK, New Castle, Delaware

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
25 t Inventory load rating

Bridge Snapshot: RED MILL RD

The RED MILL RD bridge in New Castle, Delaware carries RED MILL RD over AMTRAK. It was built in 1978, making it 48 years old today. The structure is built primarily of steel continuous and spans 3 sections, stretching 64.3 meters (211 feet) end to end. Daily traffic averages 14,697 vehicles, placing it in the heavily-trafficked tier of Delaware 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 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 24.6 metric tons.

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

How RED MILL RD compares

▼ 14.9
Load rating vs Delaware average (39.5 t)
Bottom 7%
Lower load rating than 93% of Delaware bridges
533
Bridges in New Castle · 5 in Poor condition
RED MILL RD 24.6 t
Delaware average 39.5 t

Live comparison across Delaware.

Historical Sufficiency Rating

PlainBridge-computed
91.2 / 100 - historical 80–100 band
Structural adequacy /55
47.9
Serviceability /30
30.0
Essentiality /15
14.2
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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
24.6 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1978
Material
Steel Continuous
Number of Spans
3
Structure Length
64.3 m (211 ft)
Deck Width
17.2 m (56 ft)
Owner
State Highway Agency
Avg Daily Traffic
14,697 vehicles/day
Structure Number
1230 352

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • 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) is in fair condition (6/9), with minor deterioration that may require routine maintenance.

How to read this record

This page shows what the last federal inspection recorded, not whether RED MILL RD 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 RED MILL RD against other structures in New Castle and across Delaware. Delaware 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 RED MILL RD?

RED MILL RD in New Castle, Delaware has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is RED MILL RD inspected?

RED MILL RD'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 14,697 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. RED MILL RD 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 RED MILL RD?

RED MILL RD has an NBI inventory load rating of 24.6 metric tons.

Who is responsible for maintaining RED MILL RD?

RED MILL RD is owned and maintained by State Highway Agency.

How old is RED MILL RD and does age affect safety?

RED MILL RD was built in 1978, making it 48 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.