FHWA NBI 2024 Inspection record Public-domain dataset

STATE HWY 49

Carrying STATE HWY 49 over ANTELOPE FLAT DRAINAGE

HWY 49/WEST EXIT ROAD, Comanche, Oklahoma

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
25 t Inventory load rating

Bridge Snapshot: STATE HWY 49

The STATE HWY 49 bridge in Comanche, Oklahoma carries STATE HWY 49 over ANTELOPE FLAT DRAINAGE. It was built in 1939, making it 87 years old today. It was last reconstructed in 1945, extending its service life. The structure is built primarily of concrete continuous and spans 4 sections, stretching 9.1 meters (30 feet) end to end. Daily traffic averages 1,250 vehicles, placing it in the moderately-trafficked tier of Oklahoma bridges. It is owned and maintained by Bureau of Fish and Wildlife.

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. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 24.5 metric tons.

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

How STATE HWY 49 compares

▼ 7.9
Load rating vs Oklahoma average (32.4 t)
Bottom 32%
Lower load rating than 68% of Oklahoma bridges
592
Bridges in Comanche · 52 in Poor condition
STATE HWY 49 24.5 t
Oklahoma average 32.4 t

Live comparison across Oklahoma.

Historical Sufficiency Rating

PlainBridge-computed
73.3 / 100 - historical 50–79.9 band
Structural adequacy /55
47.8
Serviceability /30
11.0
Essentiality /15
14.5
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
24.5 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1939
Last Reconstructed
1945
Material
Concrete Continuous
Number of Spans
4
Structure Length
9.1 m (30 ft)
Deck Width
9.3 m (31 ft)
Owner
Bureau of Fish and Wildlife
Avg Daily Traffic
1,250 vehicles/day
Structure Number
000021670-00038

Condition Analysis

  • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • 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 STATE HWY 49 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 STATE HWY 49 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 STATE HWY 49?

STATE HWY 49 in Comanche, 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 STATE HWY 49 inspected?

STATE HWY 49'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 1,250 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. STATE HWY 49 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 STATE HWY 49?

STATE HWY 49 has an NBI inventory load rating of 24.5 metric tons.

Who is responsible for maintaining STATE HWY 49?

STATE HWY 49 is owned and maintained by Bureau of Fish and Wildlife.

How old is STATE HWY 49 and does age affect safety?

STATE HWY 49 was built in 1939, making it 87 years old and last reconstructed in 1945.

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.