FHWA NBI 2024 Inspection record Public-domain dataset

E1640

Carrying E1640 over CREEK

1. N 6.3 W OF I-44 US62, Comanche, Oklahoma

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
23 t Inventory load rating

Bridge Snapshot: E1640

The E1640 bridge in Comanche, Oklahoma carries E1640 over CREEK. It was built in 1993, making it 33 years old today. The structure is built primarily of concrete and spans 1 section, stretching 7.6 meters (25 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 City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 3/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 22.5 metric tons.

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

How E1640 compares

▼ 9.9
Load rating vs Oklahoma average (32.4 t)
Bottom 28%
Lower load rating than 72% of Oklahoma bridges
592
Bridges in Comanche · 52 in Poor condition
E1640 22.5 t
Oklahoma average 32.4 t

Live comparison across Oklahoma.

Historical Sufficiency Rating

PlainBridge-computed
45.8 / 100 - historical 20–49.9 band
Structural adequacy /55
4.9
Serviceability /30
26.0
Essentiality /15
15.0
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 How the historical reference is calculated.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

Deck
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
3/9
Poor (1–4)
Inventory Load Rating
22.5 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1993
Material
Concrete
Number of Spans
1
Structure Length
7.6 m (25 ft)
Deck Width
9.7 m (32 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
100 vehicles/day
Structure Number
240200000000000

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • At 3/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.

How to read this record

E1640 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 E1640 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 E1640?

E1640 in Comanche, Oklahoma has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 3/9 on the FHWA's 0–9 scale.

How often is E1640 inspected?

E1640'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. E1640 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 E1640?

E1640 has an NBI inventory load rating of 22.5 metric tons.

Who is responsible for maintaining E1640?

E1640 is owned and maintained by City/Municipal Highway Agency.

How old is E1640 and does age affect safety?

E1640 was built in 1993, making it 33 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.