FHWA NBI 2024 Inspection record Public-domain dataset

GROTTO Rd

Carrying GROTTO Rd over BR SULPHUR CREEK

00.10 W MAIN ST, Vigo, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
43 t Inventory load rating

Bridge Snapshot: GROTTO Rd

The GROTTO Rd bridge in Vigo, Indiana carries GROTTO Rd over BR SULPHUR CREEK. It was built in 2002, making it 24 years old today. The structure is built primarily of wood or timber and spans 3 sections, stretching 17.7 meters (58 feet) end to end. Daily traffic averages 880 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 8/9, 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 43.0 metric tons.

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

How GROTTO Rd compares

▲ 7.4
Load rating vs Indiana average (35.6 t)
Top 18%
Higher load rating than 82% of Indiana bridges
294
Bridges in Vigo · 13 in Poor condition
GROTTO Rd 43.0 t
Indiana average 35.6 t

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
85.1 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
18.4
Essentiality /15
14.8
Special reductions
−3.0

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 How the historical reference is calculated.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
8/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
43.0 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2002
Material
Wood or Timber
Number of Spans
3
Structure Length
17.7 m (58 ft)
Deck Width
8.4 m (28 ft)
Owner
County Highway Agency
Avg Daily Traffic
880 vehicles/day
Structure Number
8400131

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 (8/9), showing no significant deterioration.
  • 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 GROTTO Rd 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 GROTTO Rd against other structures in Vigo 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 GROTTO Rd?

GROTTO Rd in Vigo, Indiana has a deck rating of 7/9, superstructure rating of 8/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is GROTTO Rd inspected?

GROTTO Rd'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 880 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. GROTTO Rd 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 GROTTO Rd?

GROTTO Rd has an NBI inventory load rating of 43.0 metric tons.

Who is responsible for maintaining GROTTO Rd?

GROTTO Rd is owned and maintained by County Highway Agency.

How old is GROTTO Rd and does age affect safety?

GROTTO Rd was built in 2002, making it 24 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.