FHWA NBI 2024 Inspection record Public-domain dataset

US 231 S TO I-64 W

Carrying US 231 S TO I-64 W over BR N FK LITL PIGEON CR

00.63 W US 231, Spencer, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
45 t Inventory load rating

Bridge Snapshot: US 231 S TO I-64 W

The US 231 S TO I-64 W bridge in Spencer, Indiana carries US 231 S TO I-64 W over BR N FK LITL PIGEON CR. It was built in 2008, making it 18 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 27.2 meters (89 feet) end to end. Daily traffic averages 500 vehicles, placing it in the lower-traffic 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 44.7 metric tons.

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

How US 231 S TO I-64 W compares

▲ 9.1
Load rating vs Indiana average (35.6 t)
Top 15%
Higher load rating than 85% of Indiana bridges
241
Bridges in Spencer · 3 in Poor condition
US 231 S TO I-64 W 44.7 t
Indiana average 35.6 t

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
98.0 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
13.0
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 How the historical reference is calculated.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
44.7 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2008
Material
Prestressed Concrete
Number of Spans
1
Structure Length
27.2 m (89 ft)
Deck Width
10.1 m (33 ft)
Owner
State Highway Agency
Avg Daily Traffic
500 vehicles/day
Structure Number
033813

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) is in good condition (7/9), showing no significant deterioration.
  • At 8/9, 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 US 231 S TO I-64 W 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 231 S TO I-64 W against other structures in Spencer 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 231 S TO I-64 W?

US 231 S TO I-64 W in Spencer, 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 US 231 S TO I-64 W inspected?

US 231 S TO I-64 W'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 500 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. US 231 S TO I-64 W 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 231 S TO I-64 W?

US 231 S TO I-64 W has an NBI inventory load rating of 44.7 metric tons.

Who is responsible for maintaining US 231 S TO I-64 W?

US 231 S TO I-64 W is owned and maintained by State Highway Agency.

How old is US 231 S TO I-64 W and does age affect safety?

US 231 S TO I-64 W was built in 2008, making it 18 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.