FHWA NBI 2024 Inspection record Public-domain dataset

Kalmia Road, N.W.

Carrying Kalmia Road, N.W. over Rock Creek Tributary

Kalmia Road, District of Columbia, District of Columbia

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
32 t Inventory load rating

Bridge Snapshot: Kalmia Road, N.W.

The Kalmia Road, N.W. bridge in District of Columbia, District of Columbia carries Kalmia Road, N.W. over Rock Creek Tributary. It was built in 2015, making it 11 years old today. The structure is built primarily of concrete and spans 1 section, stretching 7.3 meters (24 feet) end to end. Daily traffic averages 17,000 vehicles, placing it in the heavily-trafficked tier of District of Columbia bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show culvert 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 32.4 metric tons.

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

How Kalmia Road, N.W. compares

▼ 5.5
Load rating vs District of Columbia average (37.9 t)
Bottom 35%
Lower load rating than 65% of District of Columbia bridges
159
Bridges in District of Columbia · 2 in Poor condition
Kalmia Road, N.W. 32.4 t
District of Columbia average 37.9 t

Live comparison across District of Columbia.

Historical Sufficiency Rating

PlainBridge-computed
95.6 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
28.0
Essentiality /15
12.6
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 How the historical reference is calculated.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

Culvert
7/9
Good (7–9)
Inventory Load Rating
32.4 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
2015
Material
Concrete
Number of Spans
1
Structure Length
7.3 m (24 ft)
Deck Width
18.3 m (60 ft)
Owner
State Highway Agency
Avg Daily Traffic
17,000 vehicles/day
Structure Number
0103

How to read this record

This page shows what the last federal inspection recorded, not whether Kalmia Road, N.W. 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 Kalmia Road, N.W. against other structures in District of Columbia and across District of Columbia. District of Columbia 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 Kalmia Road, N.W.?

Kalmia Road, N.W. in District of Columbia, District of Columbia on the FHWA's 0–9 scale.

How often is Kalmia Road, N.W. inspected?

Kalmia Road, N.W.'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 17,000 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. Kalmia Road, N.W. 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 Kalmia Road, N.W.?

Kalmia Road, N.W. has an NBI inventory load rating of 32.4 metric tons.

Who is responsible for maintaining Kalmia Road, N.W.?

Kalmia Road, N.W. is owned and maintained by State Highway Agency.

How old is Kalmia Road, N.W. and does age affect safety?

Kalmia Road, N.W. was built in 2015, making it 11 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.