FHWA NBI 2024 Inspection record Public-domain dataset

E1680 (BISHOP RD)

Carrying E1680 (BISHOP RD) over CREEK

1S 6.4W OF JCT SH7/SH65, Comanche, Oklahoma

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
31 t Inventory load rating

Bridge Snapshot: E1680 (BISHOP RD)

The E1680 (BISHOP RD) bridge in Comanche, Oklahoma carries E1680 (BISHOP RD) over CREEK. It was built in 1983, making it 43 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 13.7 meters (45 feet) end to end. Daily traffic averages 100 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 culvert at 3/9. 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 30.8 metric tons.

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

How E1680 (BISHOP RD) compares

▼ 1.6
Load rating vs Oklahoma average (32.4 t)
Bottom 45%
Lower load rating than 55% of Oklahoma bridges
592
Bridges in Comanche · 52 in Poor condition
E1680 (BISHOP RD) 30.8 t
Oklahoma average 32.4 t

Live comparison across Oklahoma.

Historical Sufficiency Rating

PlainBridge-computed
52.3 / 100 - historical 50–79.9 band
Structural adequacy /55
14.3
Serviceability /30
26.0
Essentiality /15
14.9
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 How the historical reference is calculated.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
3/9
Poor (1–4)
Inventory Load Rating
30.8 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1983
Material
Concrete
Number of Spans
3
Structure Length
13.7 m (45 ft)
Deck Width
8.5 m (28 ft)
Owner
County Highway Agency
Avg Daily Traffic
100 vehicles/day
Structure Number
204430000000000

How to read this record

E1680 (BISHOP RD) 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 E1680 (BISHOP RD) against other structures in Comanche 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 E1680 (BISHOP RD)?

E1680 (BISHOP RD) in Comanche, Oklahoma on the FHWA's 0–9 scale.

How often is E1680 (BISHOP RD) inspected?

E1680 (BISHOP RD)'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 100 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. E1680 (BISHOP RD) 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 E1680 (BISHOP RD)?

E1680 (BISHOP RD) has an NBI inventory load rating of 30.8 metric tons.

Who is responsible for maintaining E1680 (BISHOP RD)?

E1680 (BISHOP RD) is owned and maintained by County Highway Agency.

How old is E1680 (BISHOP RD) and does age affect safety?

E1680 (BISHOP RD) was built in 1983, making it 43 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.