CR 1550N
Carrying CR 1550N over LILLY CREEK
00.10 W CR 100 W, Madison, Indiana
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
CR 1550N in Madison, Indiana sits above 96% of rated Indiana bridges on inventory load rating (61 t), while its 1987 build year is earlier than 38% of Madison's recorded-year cohort (301 bridges).
CR 1550N in Madison, Indiana is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1987, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure IN:4800015
LATE-CENTURY · TIMBER · SINGLE-SPAN · SUB-LED · LOCAL-ADT · HEAVY-LOAD · CAT-FAIR
- LATE-CENTURY 1980–1999
- TIMBER Wood or timber
- SINGLE-SPAN Single span
- SUB-LED Substructure-led
- LOCAL-ADT Local ADT
- HEAVY-LOAD Heavy load
- CAT-FAIR Fair
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: CR 1550N
The CR 1550N bridge in Madison, Indiana carries CR 1550N over LILLY CREEK. It was built in 1987, making it 39 years old today. The structure is built primarily of wood or timber and spans 1 section, stretching 8.5 meters (28 feet) end to end. Daily traffic averages 147 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 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.
How CR 1550N compares
Age against the county: built in 1987, earlier than 114 of Madison's 301 bridges with a recorded construction year (38%), against a county median build year of 1983. This is one of the newer structures in its county.
Live comparison across Indiana bridges with a recorded inventory load rating (19,495 rated).
CR 1550N vs every rated Indiana bridge
Inventory load rating (metric tons), FHWA NBI, this state
61 Top 4% higher than 96% of 19,495 bridges
rated Indiana bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.
Madison inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 301 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1987
- Material
- Wood or Timber
- Number of Spans
- 1
- Structure Length
- 8.5 m (28 ft)
- Deck Width
- 7.7 m (25 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 147 vehicles/day
- Structure Number
- 4800015
Condition Analysis
- • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether CR 1550N 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 1550N against other structures in Madison 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 1550N?
CR 1550N in Madison, Indiana 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 CR 1550N inspected?
CR 1550N'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 147 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. CR 1550N 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 1550N?
CR 1550N has an NBI inventory load rating of 60.8 metric tons.
Who is responsible for maintaining CR 1550N?
CR 1550N is owned and maintained by County Highway Agency.
How old is CR 1550N and does age affect safety?
CR 1550N was built in 1987, making it 39 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.