FHWA NBI 2024 Inspection record Public-domain dataset

RESEARCH ROAD

Carrying RESEARCH ROAD over LENA GULCH

0.1 mi N of S Golden Rd, Jefferson, Colorado

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
23 t Inventory load rating

Bridge Snapshot: RESEARCH ROAD

The RESEARCH ROAD bridge in Jefferson, Colorado carries RESEARCH ROAD over LENA GULCH. It was built in 2012, making it 14 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 33.6 meters (110 feet) end to end. Daily traffic averages 2,445 vehicles, placing it in the moderately-trafficked tier of Colorado bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 23.3 metric tons.

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

How RESEARCH ROAD compares

▼ 13.8
Load rating vs Colorado average (37.1 t)
Bottom 16%
Lower load rating than 84% of Colorado bridges
464
Bridges in Jefferson · 18 in Poor condition
RESEARCH ROAD 23.3 t
Colorado average 37.1 t

Live comparison across Colorado.

Historical Sufficiency Rating

PlainBridge-computed
87.8 / 100 - historical 80–100 band
Structural adequacy /55
46.1
Serviceability /30
29.0
Essentiality /15
14.7
Special reductions
−2.0

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 How the historical reference is calculated.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
7/9
Good (7–9)
Inventory Load Rating
23.3 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2012
Material
Prestressed Concrete
Number of Spans
1
Structure Length
33.6 m (110 ft)
Deck Width
17.7 m (58 ft)
Owner
County Highway Agency
Avg Daily Traffic
2,445 vehicles/day
Structure Number
F-21-100

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether RESEARCH ROAD 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 RESEARCH ROAD against other structures in Jefferson and across Colorado. Colorado 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 RESEARCH ROAD?

RESEARCH ROAD in Jefferson, Colorado has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is RESEARCH ROAD inspected?

RESEARCH ROAD'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 2,445 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. RESEARCH ROAD is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for RESEARCH ROAD?

RESEARCH ROAD has an NBI inventory load rating of 23.3 metric tons.

Who is responsible for maintaining RESEARCH ROAD?

RESEARCH ROAD is owned and maintained by County Highway Agency.

How old is RESEARCH ROAD and does age affect safety?

RESEARCH ROAD was built in 2012, making it 14 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.