FHWA NBI 2024 Inspection record Public-domain dataset

MICHIGAN STREET

Carrying MICHIGAN STREET over DEEP RIVER

00.70 N. of RIDGE RD, Lake, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
25 t Inventory load rating

Bridge Snapshot: MICHIGAN STREET

The MICHIGAN STREET bridge in Lake, Indiana carries MICHIGAN STREET over DEEP RIVER. It was built in 1995, making it 31 years old today. The structure is built primarily of prestressed concrete continuous and spans 3 sections, stretching 83.1 meters (273 feet) end to end. Daily traffic averages 4,252 vehicles, placing it in the moderately-trafficked tier of Indiana bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 24.8 metric tons.

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

How MICHIGAN STREET compares

▼ 10.8
Load rating vs Indiana average (35.6 t)
Bottom 12%
Lower load rating than 88% of Indiana bridges
488
Bridges in Lake · 27 in Poor condition
MICHIGAN STREET 24.8 t
Indiana average 35.6 t

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
88.0 / 100 - historical 80–100 band
Structural adequacy /55
48.2
Serviceability /30
25.5
Essentiality /15
14.3
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
24.8 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1995
Material
Prestressed Concrete Continuous
Number of Spans
3
Structure Length
83.1 m (273 ft)
Deck Width
12.1 m (40 ft)
Owner
County Highway Agency
Avg Daily Traffic
4,252 vehicles/day
Structure Number
4500141

Condition Analysis

  • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether MICHIGAN STREET 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 MICHIGAN STREET against other structures in Lake 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 MICHIGAN STREET?

MICHIGAN STREET in Lake, Indiana has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is MICHIGAN STREET inspected?

MICHIGAN STREET'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 4,252 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. MICHIGAN STREET 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 MICHIGAN STREET?

MICHIGAN STREET has an NBI inventory load rating of 24.8 metric tons.

Who is responsible for maintaining MICHIGAN STREET?

MICHIGAN STREET is owned and maintained by County Highway Agency.

How old is MICHIGAN STREET and does age affect safety?

MICHIGAN STREET was built in 1995, making it 31 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.