FHWA NBI 2024 Inspection record Public-domain dataset

IH 635

Carrying IH 635 over Draw

3.7 Mi N of Elam Rd, Dallas, Texas

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
24 t Inventory load rating

Bridge Snapshot: IH 635

The IH 635 bridge in Dallas, Texas carries IH 635 over Draw. It was built in 1969, making it 57 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 8.2 meters (27 feet) end to end. Daily traffic averages 159,081 vehicles, placing it in the heavily-trafficked tier of Texas bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert at 4/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 23.6 metric tons.

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

How IH 635 compares

▼ 4.7
Load rating vs Texas average (28.3 t)
Bottom 4%
Lower load rating than 96% of Texas bridges
3,231
Bridges in Dallas · 18 in Poor condition
IH 635 23.6 t
Texas average 28.3 t

Live comparison across Texas.

Historical Sufficiency Rating

PlainBridge-computed
34.5 / 100 - historical 20–49.9 band
Structural adequacy /55
21.5
Serviceability /30
13.0
Essentiality /15
0.0
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 How the historical reference is calculated.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

Culvert
4/9
Poor (1–4)
Inventory Load Rating
23.6 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1969
Material
Concrete
Number of Spans
3
Structure Length
8.2 m (27 ft)
Owner
State Highway Agency
Avg Daily Traffic
159,081 vehicles/day
Structure Number
180570237402080

How to read this record

IH 635 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 IH 635 against other structures in Dallas 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 IH 635?

IH 635 in Dallas, Texas on the FHWA's 0–9 scale.

How often is IH 635 inspected?

IH 635'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 159,081 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. IH 635 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 IH 635?

IH 635 has an NBI inventory load rating of 23.6 metric tons.

Who is responsible for maintaining IH 635?

IH 635 is owned and maintained by State Highway Agency.

How old is IH 635 and does age affect safety?

IH 635 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

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.