FHWA NBI 2024 Inspection record Public-domain dataset

N TAMARACK ROAD

Carrying N TAMARACK ROAD over PETER SARBER DITCH

00.20 N OF W 3B ROAD, Marshall, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
40 t Inventory load rating

Bridge Snapshot: N TAMARACK ROAD

The N TAMARACK ROAD bridge in Marshall, Indiana carries N TAMARACK ROAD over PETER SARBER DITCH. It was built in 1961, making it 65 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 18.6 meters (61 feet) end to end. Daily traffic averages 625 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 6/9, superstructure at 6/9, substructure at 7/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 39.5 metric tons.

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

How N TAMARACK ROAD compares

▲ 3.9
Load rating vs Indiana average (35.6 t)
Top 26%
Higher load rating than 74% of Indiana bridges
185
Bridges in Marshall · 6 in Poor condition
N TAMARACK ROAD 39.5 t
Indiana average 35.6 t

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
84.9 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
18.0
Essentiality /15
14.9
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
7/9
Good (7–9)
Inventory Load Rating
39.5 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1961
Material
Prestressed Concrete
Number of Spans
1
Structure Length
18.6 m (61 ft)
Deck Width
8.6 m (28 ft)
Owner
County Highway Agency
Avg Daily Traffic
625 vehicles/day
Structure Number
5000018

Condition Analysis

  • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.

How to read this record

This page shows what the last federal inspection recorded, not whether N TAMARACK ROAD 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 N TAMARACK ROAD against other structures in Marshall 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 N TAMARACK ROAD?

N TAMARACK ROAD in Marshall, Indiana has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is N TAMARACK ROAD inspected?

N TAMARACK ROAD'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 625 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. N TAMARACK ROAD 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 N TAMARACK ROAD?

N TAMARACK ROAD has an NBI inventory load rating of 39.5 metric tons.

Who is responsible for maintaining N TAMARACK ROAD?

N TAMARACK ROAD is owned and maintained by County Highway Agency.

How old is N TAMARACK ROAD and does age affect safety?

N TAMARACK ROAD was built in 1961, making it 65 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.