FHWA NBI 2024 Inspection record Public-domain dataset

CR 600 NORTH

Carrying CR 600 NORTH over FISHER DITCH

1.00 E OF CR 575 E, Johnson, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
35 t Inventory load rating

Bridge Snapshot: CR 600 NORTH

The CR 600 NORTH bridge in Johnson, Indiana carries CR 600 NORTH over FISHER DITCH. It was built in 1981, making it 45 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 18.3 meters (60 feet) end to end. Daily traffic averages 129 vehicles, placing it in the lower-traffic tier of Indiana bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 7/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 34.5 metric tons.

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

How CR 600 NORTH compares

▼ 1.1
Load rating vs Indiana average (35.6 t)
Top 41%
Higher load rating than 59% of Indiana bridges
213
Bridges in Johnson · 16 in Poor condition
CR 600 NORTH 34.5 t
Indiana average 35.6 t

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
77.0 / 100 - historical 50–79.9 band
Structural adequacy /55
45.0
Serviceability /30
20.0
Essentiality /15
15.0
Special reductions
−3.0

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 How the historical reference is calculated.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
7/9
Good (7–9)
Inventory Load Rating
34.5 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1981
Material
Prestressed Concrete
Number of Spans
1
Structure Length
18.3 m (60 ft)
Deck Width
7.4 m (24 ft)
Owner
County Highway Agency
Avg Daily Traffic
129 vehicles/day
Structure Number
4100080

Condition Analysis

  • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • The superstructure (beams and supports above the deck) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether CR 600 NORTH 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 CR 600 NORTH against other structures in Johnson and across Indiana. Indiana 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 CR 600 NORTH?

CR 600 NORTH in Johnson, Indiana has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is CR 600 NORTH inspected?

CR 600 NORTH'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 129 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. CR 600 NORTH 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 CR 600 NORTH?

CR 600 NORTH has an NBI inventory load rating of 34.5 metric tons.

Who is responsible for maintaining CR 600 NORTH?

CR 600 NORTH is owned and maintained by County Highway Agency.

How old is CR 600 NORTH and does age affect safety?

CR 600 NORTH was built in 1981, making it 45 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.