CR 400S
Carrying CR 400S over AHLGRIM DITCH
00.30 E SR 49, Porter, Indiana
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
CR 400S in Porter, Indiana sits above 28% of rated Indiana bridges on inventory load rating (31 t), while its 2014 build year is earlier than 5% of Porter's recorded-year cohort (277 bridges).
CR 400S in Porter, Indiana is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 2014, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 8. The lowest applicable rating sets the federal condition category, so this Good 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:6400164
POST-2000 · MAT-OTHER · SINGLE-SPAN · CULVERT-LED · LOCAL-ADT · STANDARD-LOAD · CAT-GOOD
- POST-2000 2000+
- MAT-OTHER Other
- SINGLE-SPAN Single span
- CULVERT-LED Culvert-led
- LOCAL-ADT Local ADT
- STANDARD-LOAD Standard load
- CAT-GOOD Good
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 400S
The CR 400S bridge in Porter, Indiana carries CR 400S over AHLGRIM DITCH. It was built in 2014, making it 12 years old today. The structure is built primarily of aluminum/iron and spans 1 section, stretching 8.5 meters (28 feet) end to end. Daily traffic averages 400 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 culvert at 8/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds.
How CR 400S compares
Age against the county: built in 2014, earlier than 15 of Porter's 277 bridges with a recorded construction year (5%), against a county median build year of 1969. 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 400S vs every rated Indiana bridge
Inventory load rating (metric tons), FHWA NBI, this state
31 Top 72% higher than 28% 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.
Porter inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 277 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
- 2014
- Material
- Aluminum/Iron
- Number of Spans
- 1
- Structure Length
- 8.5 m (28 ft)
- Deck Width
- 9.1 m (30 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 400 vehicles/day
- Structure Number
- 6400164
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 400S 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 400S against other structures in Porter 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 400S?
CR 400S in Porter, Indiana on the FHWA's 0–9 scale.
How often is CR 400S inspected?
CR 400S'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 400 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. CR 400S 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 CR 400S?
CR 400S has an NBI inventory load rating of 30.5 metric tons.
Who is responsible for maintaining CR 400S?
CR 400S is owned and maintained by County Highway Agency.
How old is CR 400S and does age affect safety?
CR 400S was built in 2014, making it 12 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.