FORT SILL BLVD
Carrying FORT SILL BLVD over SITTING BEAR CREEK
FORT SILL ARMY POST, Comanche, Oklahoma
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: FORT SILL BLVD
The FORT SILL BLVD bridge in Comanche, Oklahoma carries FORT SILL BLVD over SITTING BEAR CREEK. It was built in 1981, making it 45 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 11.9 meters (39 feet) end to end. Daily traffic averages 5,000 vehicles, placing it in the moderately-trafficked tier of Oklahoma bridges. It is owned and maintained by NASA.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 6/9, substructure at 7/9. 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 59.9 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How FORT SILL BLVD compares
Live comparison across Oklahoma.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1981
- Material
- Prestressed Concrete
- Number of Spans
- 1
- Structure Length
- 11.9 m (39 ft)
- Deck Width
- 10.8 m (35 ft)
- Owner
- NASA
- Avg Daily Traffic
- 5,000 vehicles/day
- Structure Number
- DAPTRASIL00000G
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 7/9, the deck (driving surface) is in good shape and shows no significant wear.
- • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.
How to read this record
This page shows what the last federal inspection recorded, not whether FORT SILL BLVD 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 FORT SILL BLVD 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 FORT SILL BLVD?
FORT SILL BLVD in Comanche, Oklahoma has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is FORT SILL BLVD inspected?
FORT SILL BLVD'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 5,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. FORT SILL BLVD 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 FORT SILL BLVD?
FORT SILL BLVD has an NBI inventory load rating of 59.9 metric tons.
Who is responsible for maintaining FORT SILL BLVD?
FORT SILL BLVD is owned and maintained by NASA.
How old is FORT SILL BLVD and does age affect safety?
FORT SILL BLVD was built in 1981, making it 45 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.
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.