FHWA NBI 2024 Inspection record Public-domain dataset

Ramp to IL 3 SB

Carrying Ramp to IL 3 SB over PALMER CRK Overflow

0.8 mi S of I-255, Monroe, Illinois

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
42 t Inventory load rating

Bridge Snapshot: Ramp to IL 3 SB

The Ramp to IL 3 SB bridge in Monroe, Illinois carries Ramp to IL 3 SB over PALMER CRK Overflow. It was built in 1991, making it 35 years old today. The structure is built primarily of concrete and spans 4 sections, stretching 14.4 meters (47 feet) end to end. Daily traffic averages 1,350 vehicles, placing it in the moderately-trafficked tier of Illinois 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. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 42.4 metric tons.

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

How Ramp to IL 3 SB compares

▲ 7.8
Load rating vs Illinois average (34.6 t)
Top 15%
Higher load rating than 85% of Illinois bridges
130
Bridges in Monroe · 9 in Poor condition
Ramp to IL 3 SB 42.4 t
Illinois average 34.6 t

Live comparison across Illinois.

Historical Sufficiency Rating

PlainBridge-computed
97.9 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
14.9
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 How the historical reference is calculated.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
7/9
Good (7–9)
Inventory Load Rating
42.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1991
Material
Concrete
Number of Spans
4
Structure Length
14.4 m (47 ft)
Owner
State Highway Agency
Avg Daily Traffic
1,350 vehicles/day
Structure Number
067200300000000

How to read this record

This page shows what the last federal inspection recorded, not whether Ramp to IL 3 SB 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 Ramp to IL 3 SB against other structures in Monroe 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 Ramp to IL 3 SB?

Ramp to IL 3 SB in Monroe, Illinois on the FHWA's 0–9 scale.

How often is Ramp to IL 3 SB inspected?

Ramp to IL 3 SB'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 1,350 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Ramp to IL 3 SB 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 Ramp to IL 3 SB?

Ramp to IL 3 SB has an NBI inventory load rating of 42.4 metric tons.

Who is responsible for maintaining Ramp to IL 3 SB?

Ramp to IL 3 SB is owned and maintained by State Highway Agency.

How old is Ramp to IL 3 SB and does age affect safety?

Ramp to IL 3 SB was built in 1991, making it 35 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.