FHWA NBI 2024 Inspection record Public-domain dataset

SH 351 SB

Carrying SH 351 SB over US 180 EB

17.45 MI NE OF JONES C/L, Shackelford, Texas

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Fair
26 t Inventory load rating Lower than 56% of rated Texas bridges

SH 351 SB in Shackelford, Texas sits above 44% of rated Texas bridges on inventory load rating (26 t), while its 1969 build year is earlier than 12% of Shackelford's recorded-year cohort (78 bridges).

SH 351 SB in Shackelford, Texas is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1969, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.

NBI record plate

Structure TX:082090010702070

INTERSTATE-ERA · STEEL · MULTI-SPAN · TIED-CTRL · ARTERIAL-ADT · STANDARD-LOAD · CAT-FAIR

  • INTERSTATE-ERA 1950–1979
  • STEEL Steel
  • MULTI-SPAN 3 spans
  • TIED-CTRL Tied control
  • ARTERIAL-ADT Arterial ADT
  • STANDARD-LOAD Standard load
  • CAT-FAIR Fair

Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.

Bridge Snapshot: SH 351 SB

The SH 351 SB bridge in Shackelford, Texas carries SH 351 SB over US 180 EB. It was built in 1969, making it 57 years old today. The structure is built primarily of steel continuous and spans 3 sections, stretching 59.4 meters (195 feet) end to end. Daily traffic averages 1,090 vehicles, placing it in the moderately-trafficked tier of Texas bridges. It is owned and maintained by State 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. None of this bridge's reported major components fall into the Poor condition range.

How SH 351 SB compares

▼ 2.7
Load rating vs Texas average (29.0 t; 56,715 of 56,729 rated)
78
Bridges in Shackelford · 1 in Poor condition

Age against the county: built in 1969, earlier than 9 of Shackelford's 78 bridges with a recorded construction year (12%), against a county median build year of 1941. This is one of the newer structures in its county.

SH 351 SB 26.3 t
Texas average (56,715 of 56,729 rated) 29.0 t

Live comparison across Texas bridges with a recorded inventory load rating (56,715 of 56,729 rated).

SH 351 SB vs every rated Texas bridge

Inventory load rating (metric tons), FHWA NBI, this state

26 Top 56% higher than 44% of 56,715 bridges

rated Texas bridges, bucketed by value

Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source FHWA National Bridge Inventory · August 2026

Condition Ratings

Deck
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
7/9
Good (7–9)
Inventory Load Rating
26.3 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.

Shackelford inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 78 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.

Structural Details

Year Built
1969
Material
Steel Continuous
Number of Spans
3
Structure Length
59.4 m (195 ft)
Deck Width
10.8 m (35 ft)
Owner
State Highway Agency
Avg Daily Traffic
1,090 vehicles/day
Structure Number
082090010702070

Condition Analysis

  • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • 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 SH 351 SB 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 SH 351 SB against other structures in Shackelford and across Texas. Texas 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 SH 351 SB?

SH 351 SB in Shackelford, Texas 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 SH 351 SB inspected?

SH 351 SB'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 1,090 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SH 351 SB 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 SH 351 SB?

SH 351 SB has an NBI inventory load rating of 26.3 metric tons.

Who is responsible for maintaining SH 351 SB?

SH 351 SB is owned and maintained by State Highway Agency.

How old is SH 351 SB and does age affect safety?

SH 351 SB was built in 1969, making it 57 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

Share this inspection record

Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.

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Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.