FHWA NBI 2024 Inspection record Public-domain dataset

KELSO DR

Carrying KELSO DR over COWEEMAN R

0.6 S. OF ALLEN ST., Cowlitz, Washington

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
16 t Inventory load rating

Bridge Snapshot: KELSO DR

The KELSO DR bridge in Cowlitz, Washington carries KELSO DR over COWEEMAN R. It was built in 1947, making it 79 years old today. The structure is built primarily of steel and spans 1 section, stretching 148.7 meters (488 feet) end to end. Daily traffic averages 1,500 vehicles, placing it in the moderately-trafficked tier of Washington bridges. It is owned and maintained by City/Municipal 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. All reported major components score above the Poor range. Its NBI inventory load rating is 15.6 metric tons.

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

How KELSO DR compares

▼ 17.9
Load rating vs Washington average (33.5 t)
Bottom 8%
Lower load rating than 92% of Washington bridges
167
Bridges in Cowlitz · 6 in Poor condition
KELSO DR 15.6 t
Washington average 33.5 t

Live comparison across Washington.

Historical Sufficiency Rating

PlainBridge-computed
49.8 / 100 - historical 20–49.9 band
Structural adequacy /55
32.6
Serviceability /30
9.9
Essentiality /15
14.3
Special reductions
−7.0

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 How the historical reference is calculated.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
15.6 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1947
Material
Steel
Number of Spans
1
Structure Length
148.7 m (488 ft)
Deck Width
10.7 m (35 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
1,500 vehicles/day
Structure Number
0003093A0000000

Condition Analysis

  • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
  • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
  • 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 KELSO DR 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 KELSO DR against other structures in Cowlitz and across Washington. Washington 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 KELSO DR?

KELSO DR in Cowlitz, Washington 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 KELSO DR inspected?

KELSO DR'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 1,500 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. KELSO DR 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 KELSO DR?

KELSO DR has an NBI inventory load rating of 15.6 metric tons.

Who is responsible for maintaining KELSO DR?

KELSO DR is owned and maintained by City/Municipal Highway Agency.

How old is KELSO DR and does age affect safety?

KELSO DR was built in 1947, making it 79 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.