FHWA NBI 2024 Inspection record Public-domain dataset

Deerwood Drive

Carrying Deerwood Drive over Oligarchy Ditch

20 Ft W of Co Rd 1, Boulder, Colorado

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
43 t Inventory load rating

Bridge Snapshot: Deerwood Drive

The Deerwood Drive bridge in Boulder, Colorado carries Deerwood Drive over Oligarchy Ditch. It was built in 2000, making it 26 years old today. The structure is built primarily of concrete and spans 2 sections, stretching 7.6 meters (25 feet) end to end. Daily traffic averages 1,709 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 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 42.6 metric tons.

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

How Deerwood Drive compares

▲ 5.5
Load rating vs Colorado average (37.1 t)
Top 22%
Higher load rating than 78% of Colorado bridges
311
Bridges in Boulder · 7 in Poor condition
Deerwood Drive 42.6 t
Colorado average 37.1 t

Live comparison across Colorado.

Historical Sufficiency Rating

PlainBridge-computed
96.8 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
30.0
Essentiality /15
14.8
Special reductions
−3.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Culvert
6/9
Fair (5–6)
Inventory Load Rating
42.6 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
2000
Material
Concrete
Number of Spans
2
Structure Length
7.6 m (25 ft)
Deck Width
19.2 m (63 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
1,709 vehicles/day
Structure Number
LONG-DRWD-SMRHK

How to read this record

This page shows what the last federal inspection recorded, not whether Deerwood Drive 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 Deerwood Drive against other structures in Boulder 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 Deerwood Drive?

Deerwood Drive in Boulder, Colorado on the FHWA's 0–9 scale.

How often is Deerwood Drive inspected?

Deerwood Drive'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 1,709 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Deerwood Drive 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 Deerwood Drive?

Deerwood Drive has an NBI inventory load rating of 42.6 metric tons.

Who is responsible for maintaining Deerwood Drive?

Deerwood Drive is owned and maintained by City/Municipal Highway Agency.

How old is Deerwood Drive and does age affect safety?

Deerwood Drive 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.

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.