FHWA NBI 2024 Inspection record Public-domain dataset

SR 38

Carrying SR 38 over STOKER DITCH

04.75 E US 421, Boone, Indiana

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
27 t Inventory load rating

Bridge Snapshot: SR 38

The SR 38 bridge in Boone, Indiana carries SR 38 over STOKER DITCH. It was built in 1966, making it 60 years old today. It was last reconstructed in 1990, extending its service life. The structure is built primarily of concrete continuous and spans 3 sections, stretching 18.9 meters (62 feet) end to end. Daily traffic averages 329 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 4/9, superstructure at 4/9, substructure at 5/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 26.9 metric tons.

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

How SR 38 compares

▼ 8.7
Load rating vs Indiana average (35.6 t)
Bottom 17%
Lower load rating than 83% of Indiana bridges
235
Bridges in Boone · 10 in Poor condition
SR 38 26.9 t
Indiana average 35.6 t

Live comparison across Indiana.

Historical Sufficiency Rating

PlainBridge-computed
65.8 / 100 - historical 50–79.9 band
Structural adequacy /55
25.8
Serviceability /30
25.0
Essentiality /15
15.0
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Superstructure
4/9
Poor (1–4)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
26.9 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1966
Last Reconstructed
1990
Material
Concrete Continuous
Number of Spans
3
Structure Length
18.9 m (62 ft)
Deck Width
12.7 m (42 ft)
Owner
State Highway Agency
Avg Daily Traffic
329 vehicles/day
Structure Number
012700

Condition Analysis

  • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
  • The substructure (piers and abutments) rates fair at 5/9, minor deterioration that routine maintenance should address.

How to read this record

SR 38 is in the federal Poor condition category. That is a component-based result, not a closure order.

  • NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
  • Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
  • Compare SR 38 against other structures in Boone 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 SR 38?

SR 38 in Boone, Indiana has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is SR 38 inspected?

SR 38'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 329 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SR 38 is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for SR 38?

SR 38 has an NBI inventory load rating of 26.9 metric tons.

Who is responsible for maintaining SR 38?

SR 38 is owned and maintained by State Highway Agency.

How old is SR 38 and does age affect safety?

SR 38 was built in 1966, making it 60 years old and last reconstructed in 1990.

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.