FHWA NBI 2024 Inspection record Public-domain dataset

SUMMERS LANE

Carrying SUMMERS LANE over 1-C DRAIN

001 S OF SO SIDE BYPASS, Klamath, Oregon

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
26 t Inventory load rating

Bridge Snapshot: SUMMERS LANE

The SUMMERS LANE bridge in Klamath, Oregon carries SUMMERS LANE over 1-C DRAIN. It was built in 1982, making it 44 years old today. The structure is built primarily of wood or timber and spans 1 section, stretching 7.6 meters (25 feet) end to end. Daily traffic averages 110 vehicles, placing it in the lower-traffic tier of Oregon bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 7/9. 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 26.2 metric tons.

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

How SUMMERS LANE compares

▼ 6.1
Load rating vs Oregon average (32.3 t)
Bottom 38%
Lower load rating than 62% of Oregon bridges
248
Bridges in Klamath · 13 in Poor condition
SUMMERS LANE 26.2 t
Oregon average 32.3 t

Live comparison across Oregon.

Historical Sufficiency Rating

PlainBridge-computed
92.0 / 100 - historical 80–100 band
Structural adequacy /55
50.0
Serviceability /30
30.0
Essentiality /15
15.0
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 How the historical reference is calculated.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

Deck
6/9
Fair (5–6)
Superstructure
6/9
Fair (5–6)
Substructure
7/9
Good (7–9)
Inventory Load Rating
26.2 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1982
Material
Wood or Timber
Number of Spans
1
Structure Length
7.6 m (25 ft)
Deck Width
9.8 m (32 ft)
Owner
County Highway Agency
Avg Daily Traffic
110 vehicles/day
Structure Number
35C341085400010

Condition Analysis

  • The deck (driving surface) rates fair at 6/9, minor deterioration that routine maintenance should address.
  • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • 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 SUMMERS LANE 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 SUMMERS LANE against other structures in Klamath and across Oregon. Oregon 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 SUMMERS LANE?

SUMMERS LANE in Klamath, Oregon has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is SUMMERS LANE inspected?

SUMMERS LANE'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 110 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SUMMERS LANE 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 SUMMERS LANE?

SUMMERS LANE has an NBI inventory load rating of 26.2 metric tons.

Who is responsible for maintaining SUMMERS LANE?

SUMMERS LANE is owned and maintained by County Highway Agency.

How old is SUMMERS LANE and does age affect safety?

SUMMERS LANE was built in 1982, making it 44 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.