FHWA NBI 2024 Inspection record Public-domain dataset

STATE ROUTE 175

Carrying STATE ROUTE 175 over DRY CREEK

01-LAK-175-27.48, Lake, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
43 t Inventory load rating

Bridge Snapshot: STATE ROUTE 175

The STATE ROUTE 175 bridge in Lake, California carries STATE ROUTE 175 over DRY CREEK. It was built in 1952, making it 74 years old today. The structure is built primarily of concrete continuous and spans 8 sections, stretching 33.8 meters (111 feet) end to end. Daily traffic averages 3,150 vehicles, placing it in the moderately-trafficked tier of California bridges. It is owned and maintained by State 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 42.8 metric tons.

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

How STATE ROUTE 175 compares

▲ 11.5
Load rating vs California average (31.3 t)
Top 10%
Higher load rating than 90% of California bridges
129
Bridges in Lake · 10 in Poor condition
STATE ROUTE 175 42.8 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
96.8 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
28.0
Essentiality /15
13.8
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Inventory Load Rating
42.8 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1952
Material
Concrete Continuous
Number of Spans
8
Structure Length
33.8 m (111 ft)
Deck Width
12.0 m (39 ft)
Owner
State Highway Agency
Avg Daily Traffic
3,150 vehicles/day
Structure Number
14 0020

How to read this record

This page shows what the last federal inspection recorded, not whether STATE ROUTE 175 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 STATE ROUTE 175 against other structures in Lake and across California. California 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 STATE ROUTE 175?

STATE ROUTE 175 in Lake, California on the FHWA's 0–9 scale.

How often is STATE ROUTE 175 inspected?

STATE ROUTE 175'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 3,150 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. STATE ROUTE 175 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 STATE ROUTE 175?

STATE ROUTE 175 has an NBI inventory load rating of 42.8 metric tons.

Who is responsible for maintaining STATE ROUTE 175?

STATE ROUTE 175 is owned and maintained by State Highway Agency.

How old is STATE ROUTE 175 and does age affect safety?

STATE ROUTE 175 was built in 1952, making it 74 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.