39TH AVENUE
Carrying 39TH AVENUE over LENA GULCH
JUST W OF KIPLING ST, Jefferson, Colorado
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
39TH AVENUE in Jefferson, Colorado sits above 79% of rated Colorado bridges on inventory load rating (43 t), while its 2000 build year is earlier than 20% of Jefferson's recorded-year cohort (464 bridges).
39TH AVENUE in Jefferson, Colorado is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 2000, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure CO:WTRE-02-1.05-08
POST-2000 · CONCRETE · MULTI-SPAN · CULVERT-LED · ARTERIAL-ADT · HEAVY-LOAD · CAT-GOOD
- POST-2000 2000+
- CONCRETE Concrete
- MULTI-SPAN 3 spans
- CULVERT-LED Culvert-led
- ARTERIAL-ADT Arterial ADT
- HEAVY-LOAD Heavy load
- CAT-GOOD Good
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: 39TH AVENUE
The 39TH AVENUE bridge in Jefferson, Colorado carries 39TH AVENUE over LENA GULCH. It was built in 2000, making it 26 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 9.8 meters (32 feet) end to end. Daily traffic averages 1,207 vehicles, placing it in the moderately-trafficked tier of Colorado bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.
How 39TH AVENUE compares
Age against the county: built in 2000, earlier than 93 of Jefferson's 464 bridges with a recorded construction year (20%), against a county median build year of 1984. This is one of the newer structures in its county.
Live comparison across Colorado bridges with a recorded inventory load rating (8,962 of 8,965 rated).
39TH AVENUE vs every rated Colorado bridge
Inventory load rating (metric tons), FHWA NBI, this state
43 Top 21% higher than 79% of 8,962 bridges
rated Colorado bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Jefferson inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 464 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 2000
- Material
- Concrete
- Number of Spans
- 3
- Structure Length
- 9.8 m (32 ft)
- Deck Width
- 12.3 m (40 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 1,207 vehicles/day
- Structure Number
- WTRE-02-1.05-08
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether 39TH AVENUE 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 39TH AVENUE 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 39TH AVENUE?
39TH AVENUE in Jefferson, Colorado on the FHWA's 0–9 scale.
How often is 39TH AVENUE inspected?
39TH AVENUE'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 1,207 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. 39TH AVENUE 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 39TH AVENUE?
39TH AVENUE has an NBI inventory load rating of 42.5 metric tons.
Who is responsible for maintaining 39TH AVENUE?
39TH AVENUE is owned and maintained by City/Municipal Highway Agency.
How old is 39TH AVENUE and does age affect safety?
39TH AVENUE was built in 2000, making it 26 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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.