FHWA NBI 2024 Inspection record Public-domain dataset

LP 336

Carrying LP 336 over DRAIN

0.90 MI E OF IH 45, Montgomery, Texas

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
24 t Inventory load rating

Bridge Snapshot: LP 336

The LP 336 bridge in Montgomery, Texas carries LP 336 over DRAIN. It was built in 1970, making it 56 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 7.9 meters (26 feet) end to end. Daily traffic averages 22,117 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 6/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. 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 LP 336 compares

▼ 4.7
Load rating vs Texas average (28.3 t)
Bottom 4%
Lower load rating than 96% of Texas bridges
711
Bridges in Montgomery · 6 in Poor condition
LP 336 23.6 t
Texas average 28.3 t

Live comparison across Texas.

Historical Sufficiency Rating

PlainBridge-computed
68.1 / 100 - historical 50–79.9 band
Structural adequacy /55
46.5
Serviceability /30
14.0
Essentiality /15
10.6
Special reductions
−3.0

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 How the historical reference is calculated.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
6/9
Fair (5–6)
Inventory Load Rating
23.6 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1970
Material
Concrete
Number of Spans
3
Structure Length
7.9 m (26 ft)
Owner
State Highway Agency
Avg Daily Traffic
22,117 vehicles/day
Structure Number
121700033811094

How to read this record

This page shows what the last federal inspection recorded, not whether LP 336 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 LP 336 against other structures in Montgomery 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 LP 336?

LP 336 in Montgomery, Texas on the FHWA's 0–9 scale.

How often is LP 336 inspected?

LP 336'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 22,117 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. LP 336 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 LP 336?

LP 336 has an NBI inventory load rating of 23.6 metric tons.

Who is responsible for maintaining LP 336?

LP 336 is owned and maintained by State Highway Agency.

How old is LP 336 and does age affect safety?

LP 336 was built in 1970, making it 56 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.