FHWA NBI 2024 Inspection record Public-domain dataset

SR 249 SB

Carrying SR 249 SB over LITTLE CALUMET RIVER

00.71 N I-94, Porter, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
22 t Inventory load rating

Bridge Snapshot: SR 249 SB

The SR 249 SB bridge in Porter, Indiana carries SR 249 SB over LITTLE CALUMET RIVER. It was built in 1972, making it 54 years old today. It was last reconstructed in 2003, extending its service life. The structure is built primarily of steel continuous and spans 3 sections, stretching 65.3 meters (214 feet) end to end. Daily traffic averages 12,140 vehicles, placing it in the heavily-trafficked tier of Indiana bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure 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 22.4 metric tons.

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

How SR 249 SB compares

▼ 13.2
Load rating vs Indiana average (35.6 t)
Bottom 8%
Lower load rating than 92% of Indiana bridges
280
Bridges in Porter · 14 in Poor condition
SR 249 SB 22.4 t
Indiana average 35.6 t

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
87.4 / 100 - historical 80–100 band
Structural adequacy /55
44.7
Serviceability /30
29.0
Essentiality /15
13.7
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 How the historical reference is calculated.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

Deck
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
8/9
Good (7–9)
Inventory Load Rating
22.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1972
Last Reconstructed
2003
Material
Steel Continuous
Number of Spans
3
Structure Length
65.3 m (214 ft)
Deck Width
16.6 m (54 ft)
Owner
State Highway Agency
Avg Daily Traffic
12,140 vehicles/day
Structure Number
030440

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) rates good at 7/9, with no significant deterioration on file.
  • The substructure (piers and abutments) is in good condition (8/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether SR 249 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 SR 249 SB 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 SR 249 SB?

SR 249 SB in Porter, Indiana has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 8/9 on the FHWA's 0–9 scale.

How often is SR 249 SB inspected?

SR 249 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 12,140 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SR 249 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 SR 249 SB?

SR 249 SB has an NBI inventory load rating of 22.4 metric tons.

Who is responsible for maintaining SR 249 SB?

SR 249 SB is owned and maintained by State Highway Agency.

How old is SR 249 SB and does age affect safety?

SR 249 SB was built in 1972, making it 54 years old and last reconstructed in 2003.

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.