FHWA NBI 2024 Inspection record Public-domain dataset

N ELIZABETH ROUTE

Carrying N ELIZABETH ROUTE over BRANCH OF PLUM R

6 MI NW MT.CARROLL, Carroll, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
32 t Inventory load rating

Bridge Snapshot: N ELIZABETH ROUTE

The N ELIZABETH ROUTE bridge in Carroll, Illinois carries N ELIZABETH ROUTE over BRANCH OF PLUM R. It was built in 1965, making it 61 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 11.1 meters (36 feet) end to end. Daily traffic averages 275 vehicles, placing it in the lower-traffic tier of Illinois bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show culvert at 8/9. The weakest component sits in good condition. All reported major components score above the Poor range. Its NBI inventory load rating is 32.4 metric tons.

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

How N ELIZABETH ROUTE compares

▼ 2.2
Load rating vs Illinois average (34.6 t)
Bottom 23%
Lower load rating than 77% of Illinois bridges
185
Bridges in Carroll · 19 in Poor condition
N ELIZABETH ROUTE 32.4 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
99.3 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
14.4
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 How the historical reference is calculated.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
8/9
Good (7–9)
Inventory Load Rating
32.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1965
Material
Concrete
Number of Spans
2
Structure Length
11.1 m (36 ft)
Owner
County Highway Agency
Avg Daily Traffic
275 vehicles/day
Structure Number
008310300000000

How to read this record

This page shows what the last federal inspection recorded, not whether N ELIZABETH ROUTE 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 N ELIZABETH ROUTE against other structures in Carroll and across Illinois. Illinois 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 N ELIZABETH ROUTE?

N ELIZABETH ROUTE in Carroll, Illinois on the FHWA's 0–9 scale.

How often is N ELIZABETH ROUTE inspected?

N ELIZABETH ROUTE'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 275 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. N ELIZABETH ROUTE 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 N ELIZABETH ROUTE?

N ELIZABETH ROUTE has an NBI inventory load rating of 32.4 metric tons.

Who is responsible for maintaining N ELIZABETH ROUTE?

N ELIZABETH ROUTE is owned and maintained by County Highway Agency.

How old is N ELIZABETH ROUTE and does age affect safety?

N ELIZABETH ROUTE was built in 1965, making it 61 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.