FHWA NBI 2024 Inspection record Public-domain dataset

NFSR 23

Carrying NFSR 23 over WOLF CREEK

NATIONAL FOREST, Polk, Tennessee

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
67 t Inventory load rating

Bridge Snapshot: NFSR 23

The NFSR 23 bridge in Polk, Tennessee carries NFSR 23 over WOLF CREEK. It was built in 1984, making it 42 years old today. It was last reconstructed in 2010, extending its service life. The structure is built primarily of steel and spans 3 sections, stretching 24.7 meters (81 feet) end to end. Daily traffic averages 50 vehicles, placing it in the lower-traffic tier of Tennessee bridges. It is owned and maintained by U.S. Forest Service.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 66.7 metric tons.

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

How NFSR 23 compares

▲ 37.2
Load rating vs Tennessee average (29.5 t)
Top 1%
Higher load rating than 99% of Tennessee bridges
140
Bridges in Polk · 10 in Poor condition
NFSR 23 66.7 t
Tennessee average 29.5 t

Live comparison across Tennessee.

Historical Sufficiency Rating

PlainBridge-computed
82.9 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
13.0
Essentiality /15
14.9
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 How the historical reference is calculated.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
7/9
Good (7–9)
Inventory Load Rating
66.7 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1984
Last Reconstructed
2010
Material
Steel
Number of Spans
3
Structure Length
24.7 m (81 ft)
Deck Width
4.8 m (16 ft)
Owner
U.S. Forest Service
Avg Daily Traffic
50 vehicles/day
Structure Number
080401000003035

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • 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 NFSR 23 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 NFSR 23 against other structures in Polk and across Tennessee. Tennessee 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 NFSR 23?

NFSR 23 in Polk, Tennessee has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is NFSR 23 inspected?

NFSR 23'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 50 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. NFSR 23 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 NFSR 23?

NFSR 23 has an NBI inventory load rating of 66.7 metric tons.

Who is responsible for maintaining NFSR 23?

NFSR 23 is owned and maintained by U.S. Forest Service.

How old is NFSR 23 and does age affect safety?

NFSR 23 was built in 1984, making it 42 years old and last reconstructed in 2010.

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.