FHWA NBI 2024 Inspection record Public-domain dataset

2636C

Carrying 2636C over CREEK

1 MI E US 81, Grady, Oklahoma

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
46 t Inventory load rating

Bridge Snapshot: 2636C

The 2636C bridge in Grady, Oklahoma carries 2636C over CREEK. It was built in 1939, making it 87 years old today. The structure is built primarily of steel and spans 2 sections, stretching 13.0 meters (43 feet) end to end. Daily traffic averages 1,310 vehicles, placing it in the moderately-trafficked tier of Oklahoma bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure 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 46.3 metric tons.

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

How 2636C compares

▲ 13.9
Load rating vs Oklahoma average (32.4 t)
Top 12%
Higher load rating than 88% of Oklahoma bridges
446
Bridges in Grady · 31 in Poor condition
2636C 46.3 t
Oklahoma average 32.4 t

Live comparison across Oklahoma.

Historical Sufficiency Rating

PlainBridge-computed
54.4 / 100 - historical 50–79.9 band
Structural adequacy /55
30.0
Serviceability /30
13.1
Essentiality /15
14.3
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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
5/9
Fair (5–6)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
46.3 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1939
Material
Steel
Number of Spans
2
Structure Length
13.0 m (43 ft)
Deck Width
9.1 m (30 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
1,310 vehicles/day
Structure Number
071680000000000

Condition Analysis

  • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.

How to read this record

2636C 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 2636C 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 2636C?

2636C in Grady, Oklahoma has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is 2636C inspected?

2636C'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 1,310 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. 2636C 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 2636C?

2636C has an NBI inventory load rating of 46.3 metric tons.

Who is responsible for maintaining 2636C?

2636C is owned and maintained by City/Municipal Highway Agency.

How old is 2636C and does age affect safety?

2636C was built in 1939, making it 87 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.