FHWA NBI 2024 Inspection record Public-domain dataset

ALLEY MILL ROAD

Carrying ALLEY MILL ROAD over PROVIDENCE CREEK

WEST OF CLAYTON, Kent, Delaware

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
36 t Inventory load rating

Bridge Snapshot: ALLEY MILL ROAD

The ALLEY MILL ROAD bridge in Kent, Delaware carries ALLEY MILL ROAD over PROVIDENCE CREEK. It was built in 1968, making it 58 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 8.8 meters (29 feet) end to end. Daily traffic averages 659 vehicles, placing it in the lower-traffic tier of Delaware bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 36.0 metric tons.

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

How ALLEY MILL ROAD compares

▼ 3.5
Load rating vs Delaware average (39.5 t)
Bottom 48%
Lower load rating than 52% of Delaware bridges
192
Bridges in Kent · 3 in Poor condition
ALLEY MILL ROAD 36.0 t
Delaware average 39.5 t

Live comparison across Delaware.

Historical Sufficiency Rating

PlainBridge-computed
99.9 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
14.9
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 How the historical reference is calculated.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

Culvert
7/9
Good (7–9)
Inventory Load Rating
36.0 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1968
Material
Concrete
Number of Spans
2
Structure Length
8.8 m (29 ft)
Owner
State Highway Agency
Avg Daily Traffic
659 vehicles/day
Structure Number
2133A133

How to read this record

This page shows what the last federal inspection recorded, not whether ALLEY MILL 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 ALLEY MILL ROAD against other structures in Kent 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 ALLEY MILL ROAD?

ALLEY MILL ROAD in Kent, Delaware on the FHWA's 0–9 scale.

How often is ALLEY MILL ROAD inspected?

ALLEY MILL 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 659 vehicles per day.

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

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

ALLEY MILL ROAD has an NBI inventory load rating of 36.0 metric tons.

Who is responsible for maintaining ALLEY MILL ROAD?

ALLEY MILL ROAD is owned and maintained by State Highway Agency.

How old is ALLEY MILL ROAD and does age affect safety?

ALLEY MILL ROAD was built in 1968, making it 58 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.