FHWA NBI 2024 Inspection record Public-domain dataset

US 20

Carrying US 20 over TRAIL CREEK

01.24 W US 35, LaPorte, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
40 t Inventory load rating

Bridge Snapshot: US 20

The US 20 bridge in LaPorte, Indiana carries US 20 over TRAIL CREEK. It was built in 1993, making it 33 years old today. It was last reconstructed in 2021, extending its service life. The structure is built primarily of concrete continuous and spans 3 sections, stretching 36.6 meters (120 feet) end to end. Daily traffic averages 14,447 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 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 39.9 metric tons.

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

How US 20 compares

▲ 4.3
Load rating vs Indiana average (35.6 t)
Top 25%
Higher load rating than 75% of Indiana bridges
229
Bridges in LaPorte · 15 in Poor condition
US 20 39.9 t
Indiana average 35.6 t

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
93.2 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
8.2
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 How the historical reference is calculated.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
7/9
Good (7–9)
Inventory Load Rating
39.9 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1993
Last Reconstructed
2021
Material
Concrete Continuous
Number of Spans
3
Structure Length
36.6 m (120 ft)
Deck Width
22.0 m (72 ft)
Owner
State Highway Agency
Avg Daily Traffic
14,447 vehicles/day
Structure Number
005280

Condition Analysis

  • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
  • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
  • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether US 20 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 US 20 against other structures in LaPorte 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 US 20?

US 20 in LaPorte, Indiana has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is US 20 inspected?

US 20'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 14,447 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. US 20 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 US 20?

US 20 has an NBI inventory load rating of 39.9 metric tons.

Who is responsible for maintaining US 20?

US 20 is owned and maintained by State Highway Agency.

How old is US 20 and does age affect safety?

US 20 was built in 1993, making it 33 years old and last reconstructed in 2021.

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.