FHWA NBI 2024 Inspection record Public-domain dataset

FM 317

Carrying FM 317 over Flat Cr (Spillway)

2.00 MI E OF SH 31, Henderson, Texas

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
33 t Inventory load rating

Bridge Snapshot: FM 317

The FM 317 bridge in Henderson, Texas carries FM 317 over Flat Cr (Spillway). It was built in 1992, making it 34 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 18.3 meters (60 feet) end to end. Daily traffic averages 2,742 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 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 32.7 metric tons.

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

How FM 317 compares

▲ 4.4
Load rating vs Texas average (28.3 t)
Top 40%
Higher load rating than 60% of Texas bridges
216
Bridges in Henderson · 1 in Poor condition
FM 317 32.7 t
Texas average 28.3 t

Live comparison across Texas.

Historical Sufficiency Rating

PlainBridge-computed
98.3 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
29.0
Essentiality /15
14.3
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 How the historical reference is calculated.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
32.7 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1992
Material
Prestressed Concrete
Number of Spans
1
Structure Length
18.3 m (60 ft)
Deck Width
12.9 m (42 ft)
Owner
State Highway Agency
Avg Daily Traffic
2,742 vehicles/day
Structure Number
101080088901022

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether FM 317 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 FM 317 against other structures in Henderson 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 FM 317?

FM 317 in Henderson, Texas 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 FM 317 inspected?

FM 317'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 2,742 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. FM 317 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 FM 317?

FM 317 has an NBI inventory load rating of 32.7 metric tons.

Who is responsible for maintaining FM 317?

FM 317 is owned and maintained by State Highway Agency.

How old is FM 317 and does age affect safety?

FM 317 was built in 1992, making it 34 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.