FHWA NBI 2024 Inspection record Public-domain dataset

E1500

Carrying E1500 over LITTLE WASHITA RIVER

4.N SH17 5.8W US81, Grady, Oklahoma

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
9 t Inventory load rating

Bridge Snapshot: E1500

The E1500 bridge in Grady, Oklahoma carries E1500 over LITTLE WASHITA RIVER. It was built in 1992, making it 34 years old today. The structure is built primarily of steel and spans 2 sections, stretching 34.7 meters (114 feet) end to end. Daily traffic averages 40 vehicles, placing it in the lower-traffic tier of Oklahoma bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure 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 9.1 metric tons.

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

How E1500 compares

▼ 23.3
Load rating vs Oklahoma average (32.4 t)
Bottom 2%
Lower load rating than 98% of Oklahoma bridges
446
Bridges in Grady · 31 in Poor condition
E1500 9.1 t
Oklahoma average 32.4 t

Live comparison across Oklahoma.

Historical Sufficiency Rating

PlainBridge-computed
55.4 / 100 - historical 50–79.9 band
Structural adequacy /55
18.4
Serviceability /30
25.0
Essentiality /15
15.0
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 How the historical reference is calculated.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

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

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

Structural Details

Year Built
1992
Material
Steel
Number of Spans
2
Structure Length
34.7 m (114 ft)
Deck Width
7.3 m (24 ft)
Owner
County Highway Agency
Avg Daily Traffic
40 vehicles/day
Structure Number
294830000000000

Condition Analysis

  • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
  • The superstructure (beams and supports above the deck) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

This page shows what the last federal inspection recorded, not whether E1500 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 E1500 against other structures in Grady and across Oklahoma. Oklahoma 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 E1500?

E1500 in Grady, Oklahoma has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is E1500 inspected?

E1500'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 40 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. E1500 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 E1500?

E1500 has an NBI inventory load rating of 9.1 metric tons.

Who is responsible for maintaining E1500?

E1500 is owned and maintained by County Highway Agency.

How old is E1500 and does age affect safety?

E1500 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.